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  • 251.
    Callin, Jimmy
    et al.
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Språkvetenskapliga fakulteten, Institutionen för lingvistik och filologi.
    Hardmeier, Christian
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Språkvetenskapliga fakulteten, Institutionen för lingvistik och filologi.
    Tiedemann, Jörg
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Språkvetenskapliga fakulteten, Institutionen för lingvistik och filologi.
    Part-of-Speech Driven Cross-Lingual Pronoun Prediction with Feed-Forward Neural Networks2015Ingår i: Proceedings of the Second Workshop on Discourse in Machine Translation (DiscoMT), Stroudsburg, PA: Association for Computational Linguistics, 2015, s. 59-64Konferensbidrag (Refereegranskat)
    Abstract [en]

    For some language pairs, pronoun translation is a discourse-driven task which requires information that lies beyond its local context. This motivates the task of predicting the correct pronoun given a source sentence and a target translation, where the translated pronouns have been replaced with placeholders. For cross-lingual pronoun prediction, we suggest a neural network-based model using preceding nouns and determiners as features for suggesting antecedent candidates. Our model scores on par with similar models while having a simpler architecture.

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    DiscoMTWhatelles
  • 252.
    Cap, Fabienne
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Språkvetenskapliga fakulteten, Institutionen för lingvistik och filologi.
    Approximating Compound Compositionality based on Word Alignments2017Konferensbidrag (Övrigt vetenskapligt)
  • 253.
    Cap, Fabienne
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Språkvetenskapliga fakulteten, Institutionen för lingvistik och filologi.
    Show me your variance and I tell you who you are: Deriving compound compositionality from word alignments2017Ingår i: Proceedings of the 13th Workshop on Multiword Expressions, 2017, s. 102-107Konferensbidrag (Refereegranskat)
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  • 254.
    Cap, Fabienne
    et al.
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Språkvetenskapliga fakulteten, Institutionen för lingvistik och filologi.
    Adesam, Yvonne
    University of Gothenburg.
    Ahrenberg, Lars
    University of Linköping.
    Borin, Lars
    University of Gothenburg.
    Bouma, Gerlof
    University of Gothenburg.
    Forsberg, Markus
    University of Gothenburg.
    Kann, Viggo
    KTH.
    Östling, Robert
    Stockholm University.
    Smith, Aaron
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Språkvetenskapliga fakulteten, Institutionen för lingvistik och filologi.
    Wirén, Mats
    Stockholm University.
    Nivre, Joakim
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Språkvetenskapliga fakulteten, Institutionen för lingvistik och filologi.
    SWORD: Towards Cutting-Edge Swedish Word Processing2016Konferensbidrag (Övrigt vetenskapligt)
  • 255. Cap, Fabienne
    et al.
    Adesam, Yvonne
    Ahrenberg, Lars
    Borin, Lars
    Bouma, Gerlof
    Forsberg, Markus
    Kann, Viggo
    Östling, Robert
    Stockholms universitet, Humanistiska fakulteten, Institutionen för lingvistik, Avdelningen för datorlingvistik.
    Smith, Aaron
    Wirén, Mats
    Stockholms universitet, Humanistiska fakulteten, Institutionen för lingvistik, Avdelningen för datorlingvistik.
    Nivre, Joakim
    SWORD: Towards Cutting-Edge Swedish Word Processing2016Ingår i: Proceedings of SLTC 2016, 2016Konferensbidrag (Refereegranskat)
    Abstract [en]

    Despite many years of research on Swedish language technology, there is still no well-documented standard for Swedish word processing covering the whole spectrum from low-level tokenization to morphological analysis and disambiguation. SWORD is a new initiative within the SWE-CLARIN consortium aiming to develop documented standards for Swedish word processing. In this paper, we report on a pilot study of Swedish tokenization, where we compare the output of six different tokenizers on four different text types. For one text type (Wikipedia articles), we also compare to the tokenization produced by six manual annotators.

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  • 256.
    Cap, Fabienne
    et al.
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Språkvetenskapliga fakulteten, Institutionen för lingvistik och filologi.
    Stymne, Sara
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Språkvetenskapliga fakulteten, Institutionen för lingvistik och filologi.
    Using Word Alignments to Determine the Compositionality of Swedish Compound Nouns2016Konferensbidrag (Övrigt vetenskapligt)
  • 257.
    Capshaw, Riley
    Linköpings universitet, Institutionen för datavetenskap, Interaktiva och kognitiva system.
    Relation Classification using Semantically-Enhanced Syntactic Dependency Paths: Combining Semantic and Syntactic Dependencies for Relation Classification using Long Short-Term Memory Networks2018Självständigt arbete på avancerad nivå (masterexamen), 20 poäng / 30 hpStudentuppsats (Examensarbete)
    Abstract [en]

    Many approaches to solving tasks in the field of Natural Language Processing (NLP) use syntactic dependency trees (SDTs) as a feature to represent the latent nonlinear structure within sentences. Recently, work in parsing sentences to graph-based structures which encode semantic relationships between words—called semantic dependency graphs (SDGs)—has gained interest. This thesis seeks to explore the use of SDGs in place of and alongside SDTs within a relation classification system based on long short-term memory (LSTM) neural networks. Two methods for handling the information in these graphs are presented and compared between two SDG formalisms. Three new relation extraction system architectures have been created based on these methods and are compared to a recent state-of-the-art LSTM-based system, showing comparable results when semantic dependencies are used to enhance syntactic dependencies, but with significantly fewer training parameters.

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  • 258.
    Carlson, Rolf
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Conflicting acoustic cues in stop perception2007Ingår i: Where Do Features Come From ?: Phonological Primitives in the Brain, the Mouth, and the Ear, 2007, s. 63-64Konferensbidrag (Refereegranskat)
  • 259.
    Carlson, Rolf
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Using acoustic cues in stop perception2007Ingår i: Proceedings of Fonetik 2007, 2007, Vol. 50, nr 1, s. 25-28Konferensbidrag (Övrigt vetenskapligt)
  • 260.
    Carlson, Rolf
    et al.
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Edlund, Jens
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Heldner, Mattias
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Hjalmarsson, Anna
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    House, David
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Skantze, Gabriel
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Towards human-like behaviour in spoken dialog systems2006Ingår i: Proceedings of Swedish Language Technology Conference (SLTC 2006), Gothenburg, Sweden, 2006Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]

    We and others have found it fruitful to assume that users, when interacting with spoken dialogue systems, perceive the systems and their actions metaphorically. Common metaphors include the human metaphor and the interface metaphor (cf. Edlund, Heldner, & Gustafson, 2006). In the interface metaphor, the spoken dialogue system is perceived as a machine interface – often but not always a computer interface. Speech is used to accomplish what would have otherwise been accomplished by some other means of input, such as a keyboard or a mouse. In the human metaphor, on the other hand, the computer is perceived as a creature (or even a person) with humanlike conversational abilities, and speech is not a substitute or one of many alternatives, but rather the primary means of communicating with this creature. We are aware that more “natural ” or human-like behaviour does not automatically make a spoken dialogue system “better ” (i.e. more efficient or more well-liked by its users). Indeed, we are quite convinced that the advantage (or disadvantage) of humanlike behaviour will be highly dependent on the application. However, a dialogue system that is coherent with a human metaphor may profit from a number of characteristics.

  • 261.
    Carlson, Rolf
    et al.
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Elenius, Kjell
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Swerts, Marc
    Tilburg University, The Netherlands.
    Perceptual judgments of pitch range2004Ingår i: Proc. of Intl Conference on Speech Prosody 2004 / [ed] Bel, B.; Marlin, I., Nara, Japan, 2004, s. 689-692Konferensbidrag (Refereegranskat)
    Abstract [en]

    This paper reports on a study that explores to what extent listeners are able to judge where a particular utterance fragment is located in a speaker's pitch range. The research consists of a perception study that makes use of 100 stimuli, selected from 50 different speakers whose speech was originally collected for a multi-speaker database of Swedish speech materials. The fragments are presented to subjects whom are asked to estimate whether the fragment is located in the lower or higher part of that speaker's range. Results reveal that listeners' judgments are dependent on the gender of the speaker, but that within a gender they tend to hear differences in range.

  • 262.
    Carlson, Rolf
    et al.
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Granström, Björn
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Rule-based Speech Synthesis2008Ingår i: Springer Handbook of Speech Processing / [ed] Benesty, J.; Sondhi, M. M.; Huang, Y., Berlin/Heidelberg: Springer Berlin/Heidelberg, 2008, s. 429-436Kapitel i bok, del av antologi (Refereegranskat)
    Abstract [en]

    In this chapter, we review some of the issues in rule-based synthesis and specifically discuss formant synthesis. Formant synthesis and the theory behind have played an important role in both the scientific progress in understanding how humans talk and also the development of the first speech technology applications. Its flexibility and small footprint makes the approach still of interest and a valuable complement to the current dominant methods based on concatenative data-driven synthesis. As already mentioned in the overview by Schroeter (Chap. 19) we also see a new trend to combine the rule-based and data-driven approaches. Formant features from a database that can be used both to optimize a rule-based formant synthesis system and to optimize the search for good units in a concatenative system.

  • 263.
    Carlson, Rolf
    et al.
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH.
    Granström, Björn
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH.
    Speech Synthesis2010Ingår i: The Handbook of Phonetic Sciences, Blackwell Publishing, 2010, 2, s. 781-803Kapitel i bok, del av antologi (Refereegranskat)
  • 264. Carlson, Rolf
    et al.
    Granström, Björn
    Heldner, Mattias
    House, David
    Megyesi, Beata
    Strangert, Eva
    Swerts, Mark
    Boundaries and groupings - the structuring of speech in different communicative situations: a description of the GROG project2002Ingår i: Proceedings of Fonetik 2002, 2002Konferensbidrag (Refereegranskat)
    Abstract [en]

    The goal of the project is to model the prosodic structuring of speech in terms of boundaries and groupings. The modeling will include different communicative situations and be based on existing as well as new speech corpora. Production and perception studies will be used in parallel with automatic methods developed for analysis, modeling and prediction of prosody. The model will be perceptually evaluated using synthetic speech.

  • 265.
    Carlson, Rolf
    et al.
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Gustafson, Kjell
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Exploring Data Driven Parametric Synthesis2009Ingår i: Proceedings of Fonetik 2009: The XXIIth Swedish Phonetics Conference / [ed] Peter Branderud, Hartmut Traunmüller, Stockholm, Sweden: Stockholm University, 2009, s. 86-91Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]

    This paper describes our work on building aformant synthesis system based on both rule generated and database driven methods. Three parametric synthesis systems are discussed: our traditional rule based system, a speaker adapted system, and finally a gesture system.The gesture system is a further development of the adapted system in that it includes concatenated formant gestures from a data-driven unit library. The systems are evaluated technically, comparing the formant tracks with an analysed test corpus. The gesture system results in a 25% error reduction in the formant frequencies due to the inclusion of the stored gestures. Finally, a perceptual evaluation shows a clear advantage in naturalness for the gesture system compared to both the traditional system and the speaker adapted system.

  • 266.
    Carlson, Rolf
    et al.
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Gustafson, Kjell
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Strangert, E.
    Synthesising disfluencies in a dialogue system2009Ingår i: Nordic Prosody: Proccedings of the Xth Conference / [ed] Vainio, M., Aulanko, R., Aaltonen, O., Frankfurt am Main: Peter Lang Publishing Group, 2009Konferensbidrag (Refereegranskat)
  • 267.
    Carlson, Rolf
    et al.
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Gustafson, Kjell
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Strangert, Eva
    Umeå University.
    Prosodic Cues for Hesitation2006Ingår i: Working Papers 52: Proceedings from Fonetik 2006 / [ed] Gilbert Ambrazaitis, Susanne Schötz, Lund: Lund University , 2006, Vol. 52, s. 21-24Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]

    In our efforts to model spontaneous speech for use in, for example, spoken dialogue systems, a series of experiments have been conducted in order to investigate correlates to perceived hesitation. Previous work has shown that it is the total duration increase that is the valid cuerather than the contribution by either of the two factors pause duration and final lengthening. In the present experiment we explored the effects of F0 slope variation and the presence vs. absence of creaky voice in addition to durational cues, using synthetic stimuli. The results showed that variation of both F0 slope and creaky voice did have perceptual effects, but to amuch lesser degree than the durational increase.

  • 268.
    Carlson, Rolf
    et al.
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Gustafsson, Kjell
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Strangert, Eva
    Umeå University.
    Modelling hesitation for synthesis of spontaneous speech2006Ingår i: Proceedings of Speech Prosody 2006 / [ed] R. Hoffmann, H. Mixdorff, Dresden, 2006Konferensbidrag (Refereegranskat)
    Abstract [en]

    The current work deals with the modelling of one type of disfluency, hesitations. A perceptual experiment using speech synthesis was designed to evaluate two duration features found to be correlates to hesitation, pause duration and final lengthening. A variation of F0 slope before the hesitation wasalso included. The most important finding is that it is the totalduration increase that is the valid cue rather than the contribution by either factor. In addition, our findings lead us to assume an interaction with syntax. The absence of strong effects of the induced F0 variation was unexpected and we consider several possible explanations for this result.

  • 269.
    Carlson, Rolf
    et al.
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Hawkins, Sarah
    University of Cambridge.
    When is fine phonetic detail a detail?: 16th International Congress of Phonetics Sciences2007Ingår i: Proceedings of ICPhS 2007 / [ed] Jürgen Trouvain, William J. Barry, Saarbrücken, Germany, 2007, s. 211-214Konferensbidrag (Refereegranskat)
  • 270.
    Carlson, Rolf
    et al.
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Hirschberg, Julia
    Columbia University.
    Swerts, Marc
    University of Tilburg, The Netherlands.
    Prediction of upcoming Swedish prosodic boundaries by Swedish and American listeners2004Ingår i: Proc of Intl Conference on Speech Prosody 2004 / [ed] Bel, B.; Marlin, I., Nara, Japan, 2004, s. 329-332Konferensbidrag (Refereegranskat)
    Abstract [en]

    We describe results of a study of perceptually based predictions of upcoming prosodic breaks in spontaneous Swedish speech materials by native speakers of Swedish and of standard American English. The question addressed here is the extent to which listeners are able, on the basis of acoustic and prosodic features, to predict the occurrence of upcoming boundaries, and if so, whether they are able to distinguish different degrees of boundary strength. An experiment was conducted in which spontaneous utterance fragments (both long and short versions) were presented to listeners, who were instructed to guess whether or not the fragments were followed by a prosodic break, and if so, what the strength of the break was, where boundary presence and strength had been independently labeled. Results revealed that both listening groups were indeed able to predict whether or not a boundary (of a particular strength) followed the fragment, suggesting that prosodic rather than lexico-grammatical information was being used as a primary cue.

  • 271.
    Carlsson, Bertil
    et al.
    Linköpings universitet, Institutionen för datavetenskap. Linköpings universitet, Tekniska högskolan.
    Jönsson, Arne
    Linköpings universitet, Institutionen för datavetenskap. Linköpings universitet, Tekniska högskolan.
    Using the pyramid method to create gold standards for evaluation of extraction based text summarization techniques2010Ingår i: Proceedings of the Third Swedish Language Technology Conference (SLTC-2010), 2010Konferensbidrag (Refereegranskat)
  • 272.
    Carter, David
    et al.
    SRI International.
    Rayner, Manny
    SRI International.
    Eklund, Robert
    TeliaSonera (R & D).
    Kaja, Jaan
    TeliaSonera (R & D).
    Lyberg, Bertil
    TeliaSonera (R & D).
    Sautermeister, Per
    TeliaSonera (R & D).
    Wirén, Mats
    TeliaSonera (R& D).
    Neumeyer, Leonardo
    SRI International.
    Weng, Fuliang
    SRI International.
    Common speech/language issues2000Ingår i: The spoken language translator / [ed] Manny Rayner, David Carter, Pierrette Bouillon, Vassilis Digalakis, Mats Wirén, Cambridge: Cambridge University Press, 2000, s. 284-294Kapitel i bok, del av antologi (Övrigt vetenskapligt)
  • 273.
    Carter, David
    et al.
    SRI International.
    Rayner, Manny
    SRI International.
    Eklund, Robert
    TeliaSonera (R & D).
    MacDermid, Catriona
    TeliaSonera (R & D).
    Wirén, Mats
    TeliaSonera (R & D).
    Evaluation2000Ingår i: The spoken language translator / [ed] Manny Rayner, David Carter, Pierrette Bouillon, Vassilis Digalakis, Mats Wirén, Cambridge: Cambridge University Press, 2000, s. 297-312Kapitel i bok, del av antologi (Övrigt vetenskapligt)
  • 274. Caudery, T.
    et al.
    Petersen, M.
    Shaw, Philip
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Språk och kommunikation.
    The Language Environments of Exchange Students at Scandinavian Universities2007Ingår i: Researching Content and Language Integration in Higher Education / [ed] Wilkinson, R.; Zegers, V., University of Maastricht , 2007, s. 233-250Kapitel i bok, del av antologi (Refereegranskat)
    Abstract [en]

    Exchange students who come to Scandinavia are often motivated by an intention to improve their proficiency in English rather than the local language. They take academic classes conducted in English and may find themselves living in a lingua-franca English bubble, acculturated to an international-student subculture. A few do break out of the bubble, learn the local language, and experience the local culture. Here we report on a project intended identify the factors leading to successful learning of both English and the local languages. 70 students at each of four institutions, two in Sweden, two in Denmark, were interviewed three times over a semester and asked to complete simple language tests. English proficiency improved in most cases, Swedish/Danish was only learnt by those with good initial English and appropriate motivation. As expected, contact with local students was limited. Institutional policies can probably influence these outcomes.

  • 275. Caudery, T.
    et al.
    Petersen, M.
    Shaw, Philip
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Språk och kommunikation.
    The motivations of exchange students at Scandinavian universities2008Ingår i: Students, Staff and Academic Mobility in Higher Education / [ed] Byram, M.; Dervin, F., Newcastle: Cambridge Scholars Press , 2008, s. 114-130Kapitel i bok, del av antologi (Refereegranskat)
  • 276.
    Cederblad, Gustav
    Linköpings universitet, Institutionen för datavetenskap.
    Finding Synonyms in Medical Texts: Creating a system for automatic synonym extraction from medical texts2018Självständigt arbete på grundnivå (kandidatexamen), 12 poäng / 18 hpStudentuppsats (Examensarbete)
    Abstract [en]

    This thesis describes the work of creating an automatic system for identifying synonyms and semantically related words in medical texts. Before this work, as a part of the project E-care@home, medical texts have been classified as either lay or specialized by both a lay annotator and an expert annotator. The lay annotator, in this case, is a person without any medical knowledge, whereas the expert annotator has professional knowledge in medicine. Using these texts made it possible to create co-occurrences matrices from which the related words could be identified. Fifteen medical terms were chosen as system input. The Dice similarity of these words in a context window of ten words around them was calculated. As output, five candidate related terms for each medical term was returned. Only unigrams were considered. The candidate related terms were evaluated using a questionnaire, where 223 healthcare professionals rated the similarity using a scale from one to five. A Fleiss kappa test showed that the agreement among these raters was 0.28, which is a fair agreement. The evaluation further showed that there was a significant correlation between the human ratings and the relatedness score (Dice similarity). That is, words with higher Dice similarity tended to get a higher human rating. However, the Dice similarity interval in which the words got the highest average human rating was 0.35-0.39. This result means that there is much room for improving the system. Further developments of the system should remove the unigram limitation and expand the corpus the provide a more accurate and reliable result.

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  • 277.
    Cerrato, Loredana
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    A coding scheme for the annotation of feedback phenomena in conversational speech2004Ingår i: Proc of LREC Workshop on Models of Human Behaviour for the Specification and Evaluation of Multimodal Input and Output Interfaces / [ed] Martin, J.C., Lisboa, 2004, s. 25-28Konferensbidrag (Refereegranskat)
    Abstract [en]

    A coding scheme specifically developed to label feedback phenomena in conversational speech is presented in this paper. The coding scheme allows the categorization of feedback phenomena according to their typology, direction, and communicative function in the given context. The results of the reliability tests run to verify the appropriateness of the coding scheme to code feedback phenomena in different languages and across different modalities are also presented.

  • 278.
    Cerrato, Loredana
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    A comparative study of verbal feedback in Italian and Swedish map-task dialogues2004Ingår i: Proceedings of the Nordic Symposium on the comparison of spoken languages, Copenhagen Working Papers in LSP / [ed] Copenhagen, P.; Hernrichsen, J., 2004, s. 99-126Konferensbidrag (Övrigt vetenskapligt)
  • 279.
    Cerrato, Loredana
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Linguistic functions of head nods2005Ingår i: Proceedings from The Second Nordic Conference on Multimodal Communication / [ed] Allwood, J.; Dorriots, B., Göteborg: Göteborg University , 2005, s. 137-152Konferensbidrag (Refereegranskat)
    Abstract [en]

    The aim of the present study is to investigate which communicative functions head nods can have in spoken Swedish. By nod is here meant a vertical down-up movement of the head. To classify the communicative functions of head nods 10 short video-recorded Swedish dialogues were analysed and labeled. The labels used are referred to the different communicative functions that the head nods carry out in the given context. The results show that the most common function carried out by head nods is that of feedback. Beside feedback function, head nods can be produced to signal turn taking, focus and emphasis, to give affirmative responses and to show courtesy. The visual information carried out by head nods in spoken communicative interactions is without doubt extremely important; therefore it should be exploited in the field of human-machine interfaces. This could be done by integrating head nods in the design and development of embodied conversational agents. Thanks to the production of head nods, embodied conversational agents might become more effective and appear more natural during their interactions with human beings.

  • 280.
    Cerrato, Loredana
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    On the acoustic, prosodic and gestural characteristics of “m-like” sounds in Swedish2005Ingår i: Feedback in spoken interaction: NordTalk Symposium / [ed] Jens Allwood, Göteborg: Göteborg University , 2005, Vol. Feedback in Spoken Interaction- Nordtalk Symposium 2003, s. 18-31Konferensbidrag (Refereegranskat)
    Abstract [en]

    The aim of the present study is to verify what communicative functions “m-like” sounds can have in spoken Swedish and investigate both the relationship between prosodic variation and communicative function and the relationship between the production of “mlike” sounds and their accompanying gestures. The main hypothesis tested is that the different communicative functions carried by these “m-like” sounds are conveyed by means of different prosodic cues. To test this hypothesis, audio-recordings of two dialogues, elicited with the map-task technique, were used. A distributional and functional analysis of “m-like” sounds was first carried out. Afterwards, an acoustic analysis of these sounds was performed to find out how prosodic variation and communicative function are related. The results show that the most common function carried out by “m-like” sounds is that of feedback. The general category of feedback can be further divided in sub-categories depending on the specific function that the short expression carries out in the given context. To each function it is possible to relate a prototypical F0 contour and acoustic characteristics. For the analysis of the accompanying gestures of “m-like” sounds, two AV recordings of spontaneous dialogues were used. The results of the distributional analysis show that 41% of all the analysed “m-like” sounds are accompanied by a gesture. The most common accompanying gestures are head movement s such as nods and jerks. The relationship between the function carried by speech and the specific function of the accompanying gesture has also been coded and analyzed. Gestures co-occurring with speech can either have a “non-marked/neutral” function, which means that they do not add further information to what is being said with speech, or can be produced to add, emphasize weaken or contradicting speech. When the function of these gestures is neutral, they tend to have a minimal extent, while when their specific function is to emphasize the information expressed by speech, their extent tends to be bigger. This result might be related to the fact that gestures are often produced to emphasize information that is also focused by mechanisms like prosody in speech.

  • 281.
    Cerrato, Loredana
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    The communicative function of "sì" in Italian and "ja" in Swedish: an acoustic analysis2005Ingår i: Proceedings of Fonetik 2005 / [ed] Anders Eriksson, Jonas Lindh, Göteborg: Göteborg University , 2005, s. 41-44Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]

    The results of an acoustic analysis and a perceptual evaluation of the role of prosody inspontaneously produced “ja” and “sì” in Swedish and Italian are reported and discussedin this paper. The hypothesis is that pitch contour, duration cues and relative intensity can beuseful in the identification of the different communicative functions of these short expressions taken out of their context. The results of the perceptual tests run to verify whether the acoustic cues alone can be used to distinguish different functions of the same lexical items are encouraging only for Italian “sí”, while for Swedish “ja” they show some confusions among the different categories.

  • 282.
    Cerrato, Loredana
    et al.
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Ekeklint, Susanne
    Evaluating users reactions to human-like interfaces: Prosodic and paralinguistic features as new evaluation measures for users satisfaction2004Ingår i: From Brows to Trust: Evaluating Embodied Conversational Agents / [ed] Ruttkay, Z.; Pelachaud, C., Dordrecht: Kluwer Academic Publishers, 2004, s. 101-124Kapitel i bok, del av antologi (Refereegranskat)
    Abstract [en]

    An increasing number of dialogue systems are deployed to provide publicservices in our everyday lives. They are becoming more service-minded and several ofthem provide different channels for interaction. The rationale is to make automaticservices available in new environments and more attractive to use. From a developerperspective, this affects the complexity of the requirements elicitation activity, as newcombinations and variations in end-user interaction need to be considered. The aimof our investigation is to propose new parameters and metrics to evaluate multimodaldialogue systems endowed with embodied conversational agents (ECAs). These newmetrics focus on the users, rather than on the system. Our assumption is that theintentional use of prosodic variation and the production of communicative non-verbalbehaviour by users can give an indication of their attitude towards the system andmight also help to evaluate the users’ overall experience of the interaction. To testour hypothesis we carried out analyses on different Swedish corpora of interactionsbetween users and multimodal dialogue systems. We analysed the prosodic variationin the way the users ended their interactions with the system and we observed theproduction of non-verbal communicative expressions by users. Our study supports theidea that the observation of users’ prosodic variation and production of communicativenon-verbal behaviour during the interaction with dialogue systems could be used asan indication of whether or not the users are satisfied with the system performance.

  • 283. Cerrato, Loredana
    et al.
    Ekeklint, Susanne
    Växjö universitet, Fakulteten för matematik/naturvetenskap/teknik, Matematiska och systemtekniska institutionen.
    Evaluating users reactions to human-like interfaces: Prosodic and paralinguistic features as new evaluation measures for users’ satisfaction2002Ingår i: From brows to trust: evaluating embodied conversational agents, Kluwer academic publishers , 2002, , s. 101-124Kapitel i bok, del av antologi (Övrigt vetenskapligt)
    Abstract [en]

    An increasing number of dialogue systems are deployed to provide

    public services in our everyday lives. They are becoming more

    service-minded and several of them provide different channels for

    interaction. The rationale is to make automatic services available in

    new environments and more attractive to use. From a developer

    perspective, this affects the complexity of the requirements

    elicitation activity, as new combinations and variations in end-user

    interaction need to considered. The aim of our investigation is to

    propose new parameters and metrics to evaluate multimodal dialogue

    systems endowed with embodied conversational agents (ECAs). These new

    metrics focus on the users, rather than on the system. Our assumption

    is that the intentional use of prosodic variation and the production

    of communicative non-verbal behaviour by users can give an indication

    of their attitude towards the system and might also help to evaluate

    the users' overall experience of the interaction. To test our

    hypothesis we carried out analyses on different Swedish corpora of

    interactions between users and multimodal dialogue systems. We

    analysed the prosodic variation in the way the users ended their

    interactions with the system and we observed the production of

    non-verbal communicative expressions by users. Our study supports the

    idea that the observation of users' prosodic variation and production

    of communicative non-verbal behaviour during the interaction with

    dialogue systems could be used as an indication of whether or not the

    users are satisfied with the system performance.

  • 284.
    Cerrato, Loredana
    et al.
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Svanfeldt, Gunilla
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    A method for the detection of communicative head nods in expressive speech2006Ingår i: Papers from the Second Nordic Conference on Multimodal Communication 2005 / [ed] Allwood, J.; Dorriots, B.; Nicholson, S., Göteborg: Göteborg University , 2006, s. 153-165Konferensbidrag (Refereegranskat)
    Abstract [en]

    The aim of this study is to propose a method for automatic detection of head nods during the production of semi-spontaneous speech. This method also provides means for extracting certain characteristics of head nods, that may vary depending on placement, function and even underlying emotional expression. The material used is part of the Swedish PF-Star corpora which were recorded by means of an optical motion capture system (Qualisys) able to successfully register articulatory movements as well as head movements and facial expressions. The material consists of short sentences as well as of dialogic speech produced by a Swedish actor. The method for automatic head nods detection on the 3D data acquired with Qualisys is based on criteria for slope, amplitude and a minimum number of consecutive frames. The criteria are tuned on head nods that have been manually annotated. These parameters can be varied to detect different kinds of head movements and can also be combined with other parameters in order to detect facial gestures, such as eyebrow displacements. For this study we focused in particular on the detection of head nods, since in earlier studies they have been found to be important visual cues in particular for signaling feedback and focus. In order to evaluate the method a preliminary test was run on semi-spontaneous dialogic speech, which is also part of the Swedish PF-Star corpora and produced by the same actor who read the sentences. The results show that the parameters and the criteria that had been set on the basis of the training corpus are valid also for the dialogic speech, even if more sophisticated parameters could be useful to achieve a more precise result.

  • 285.
    Cerratto, Tessy
    et al.
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Språkvetenskapliga fakulteten, Institutionen för lingvistik.
    Borin, Lars
    Overview of the research area (Swedish as a second language)2002Ingår i: NADA technical report TRITA-NA-P0206Rapport (Övrigt vetenskapligt)
  • 286.
    Chau, Ting-Hey
    KTH, Skolan för datavetenskap och kommunikation (CSC).
    Translation Memory System Optimization: How to effectively implement translation memory system optimization2015Självständigt arbete på avancerad nivå (masterexamen), 20 poäng / 30 hpStudentuppsats (Examensarbete)
    Abstract [sv]

    Översättning av tekniska manualer är väldigt kostsamt, speciellt när större organisationer behöver publicera produktmanualer för hela deras utbud till över 20 olika språk. När en text (t.ex. en fras, mening, paragraf) har blivit översatt så vill vi kunna återanvända den översatta texten i framtida översättningsprojekt och dokument. De översatta texterna lagras i ett översättningsminne (Translation Memory). Varje text lagras i sitt källspråk tillsammans med dess översättning på ett annat språk, så kallat målspråk. Dessa utgör då ett språkpar i ett översättningsminnessystem (Translation Memory System). Ett språkpar som lagras i ett översättningsminne utgör en Translation Entry även kallat Translation Unit.

    Om man hittar en matchning när man söker på källspråket efter en given textsträng i översättningsminnet, får man upp översättningar på alla möjliga målspråk för den givna textsträngen. Dessa kan i sin tur sättas in i måldokumentet. En sådan funktionalitet erbjuds i publicerings programvaran Skribenta, som har utvecklats av Excosoft.

    För att utföra en översättning till ett målspråk kräver Skribenta att text i källspråket hittar en exakt matchning eller en s.k. full match i översättningsminnet. En full match kan bara uppnås om en text finns lagrad i standardform. Detta kräver manuell taggning av entiteter och ofta förekommande ord som modellnamn och produktnummer.

    I denna uppsats undersöker jag hur man effektivt implementerar en optimering i ett översättningsminnessystem, bland annat genom att underlätta den manuella taggningen av entitier. Detta har gjorts genom olika Heuristiker som angriper problemet med Named Entity Recognition (NER).

    Resultat från de utvecklade Heuristikerna har jämförts med resultatet från det NER-verktyg som har utvecklats av Stanford. Resultaten visar att de Heuristiker som jag utvecklat uppnår ett högre F-Measure jämfört med Stanford NER och kan därför vara ett bra inledande steg för att hjälpa Excosofts användare att förbättra deras översättningsminnen.

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    TM Optimization
  • 287.
    Cheng, Xiao
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Språkvetenskapliga fakulteten, Institutionen för lingvistik och filologi.
    Dependency Parsing for Chinese Social Media Text2019Självständigt arbete på avancerad nivå (masterexamen), 20 poäng / 30 hpStudentuppsats (Examensarbete)
    Abstract [en]

    In this thesis, we investigate dependency parsing for Chinese social media text. In order to investigate our research questions, we conduct several parsing experiments on standard Chinese and social media data both with UUParser and UDPipe, to assess parser performance on social media data, and to improve this performance over baselines. The main contributions of this study are as follows: first, the annotation of data sets for Chinese social media data with or without manual annotation; second, the dependency parsing of social media data can be improved by providing more relevant training data. In addition, difference between domains of training data and test data can hurt performance for both parsers.

    Publikationen är tillgänglig i fulltext från 2020-06-15 12:00
  • 288.
    Chiang, David
    et al.
    University of Notre Dame.
    Drewes, Frank
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Gildea, Daniel
    University of Rochester.
    Lopez, Adam
    University of Edinburgh.
    Satta, Giorgio
    University of Padua.
    Weighted DAG automata for semantic graphs2018Ingår i: Computational linguistics - Association for Computational Linguistics (Print), ISSN 0891-2017, E-ISSN 1530-9312, Vol. 44, nr 1, s. 119-186Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Graphs have a variety of uses in natural language processing, particularly as representations of linguistic meaning. A deficit in this area of research is a formal framework for creating, combining, and using models involving graphs that parallels the frameworks of finite automata for strings and finite tree automata for trees. A possible starting point for such a framework is the formalism of directed acyclic graph (DAG) automata, defined by Kamimura and Slutzki and extended by Quernheim and Knight. In this article, we study the latter in depth, demonstrating several new results, including a practical recognition algorithm that can be used for inference and learning with models defined on DAG automata. We also propose an extension to graphs with unbounded node degree and show that our results carry over to the extended formalism.

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    fulltext
  • 289. Constant, Matthieu
    et al.
    Nivre, Joakim
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Språkvetenskapliga fakulteten, Institutionen för lingvistik och filologi.
    A Transition-Based System for Joint Lexical and Syntactic Analysis2016Ingår i: Proceedings of the 54th Annual Meeting of the Association for Computational Linguistics: Volume 1: Long Papers, 2016, s. 161-171Konferensbidrag (Refereegranskat)
  • 290.
    Contardo, Ivonne
    et al.
    Karolinska Institutet, Sweden.
    McAllister, Anita
    Karolinska Institutet, Sweden.
    Strömbergsson, Sofia
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Real-time registration of listener reactions to unintelligibility in misarticulated child speech2014Ingår i: Proceedings from FONETIK 2014 / [ed] Heldner, M., Stockholm, 2014, s. 127-132Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]

    This study explores the relation between misarticulations and their impact on intelligibility. 30 listeners (17 clinicians and 13 untrained listeners) were given the task of clicking a button whenever they perceived something unintelligible during playback of misarticulated child speech samples. No differences were found between the clinicians and the untrained listeners regarding clicking frequency. The distribution of listener clicks correlated strongly with the clinical evaluations of the same samples. The distribution of clicks was also related to manually annotated speech errors, allowing examination of links between events in the speech signal and reactions evoked in listeners. Hereby, we demonstrate a viable approach to ranking speech error types with regards to their impact on intelligibility in conversational speech.

  • 291. Csapo, A.
    et al.
    Gilmartin, E.
    Grizou, J.
    Han, J.
    Meena, Raveesh
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Anastasiou, D.
    Jokinen, K.
    Wilcock, G.
    Multimodal conversational interaction with a humanoid robot2012Ingår i: 3rd IEEE International Conference on Cognitive Infocommunications, CogInfoCom 2012 - Proceedings, IEEE , 2012, s. 667-672Konferensbidrag (Refereegranskat)
    Abstract [en]

    The paper presents a multimodal conversational interaction system for the Nao humanoid robot. The system was developed at the 8th International Summer Workshop on Multimodal Interfaces, Metz, 2012. We implemented WikiTalk, an existing spoken dialogue system for open-domain conversations, on Nao. This greatly extended the robot's interaction capabilities by enabling Nao to talk about an unlimited range of topics. In addition to speech interaction, we developed a wide range of multimodal interactive behaviours by the robot, including face-tracking, nodding, communicative gesturing, proximity detection and tactile interrupts. We made video recordings of user interactions and used questionnaires to evaluate the system. We further extended the robot's capabilities by linking Nao with Kinect.

  • 292. Csapo, A.
    et al.
    Gilmartin, E.
    Grizou, J.
    Han, J.
    Meena, Raveesh
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Anastasiou, D.
    Jokinen, K.
    Wilcock, G.
    Open-Domain Conversation with a NAO Robot2012Ingår i: 3rd International Conference on Cognitive Infocommunications (CogInfoCom 2012), Kosice, 2012Konferensbidrag (Refereegranskat)
    Abstract [en]

    In this demo, we present a multimodal conversationsystem, implemented using a Nao robot and Wikipedia. The system was developed at the 8th International Workshop on Multimodal Interfaces in Metz, France, 2012. The system is based on an interactive, open-domain spoken dialogue systemcalled WikiTalk, which guides the user through conversations based on the link structure of Wikipedia. In addition to speech interaction, the robot interacts with users by tracking their faces and nodding/gesturing at key points of interest within the Wikipedia text. The proximity detection capabilities of the Nao,as well as its tactile sensors were used to implement context-based interrupts in the dialogue system.

  • 293.
    Csato, Éva Ágnes
    et al.
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Språkvetenskapliga fakulteten, Institutionen för lingvistik och filologi.
    Kilimci, Songul
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Språkvetenskapliga fakulteten, Institutionen för lingvistik och filologi.
    Megyesi, Beata
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Språkvetenskapliga fakulteten, Institutionen för lingvistik och filologi.
    Using Parallel Corpora in Data-Driven Teaching of Turkish in Sweden.2010Konferensbidrag (Refereegranskat)
    Abstract [en]

    The paper demonstrates how data-driven learning methods are applied in teaching Turkish as a foreign language at the Department of Linguistics and Philology, Uppsala University. In data-driven teaching, language corpora, concordance programs, and annotation tools developed in collaboration with computational linguists are employed. This paper illustrates how resources developed initially for research purposes in different subjects (such as Computational Linguistics, Linguistics, Turkic languages), are now being used in teaching environments.

    We present the Swedish-Turkish parallel corpus providing students and researchers with easily accessible annotated linguistic data. The web-based corpora can be used both by regular and distance students. They function also as learning tools for formulating and testing hypotheses concerning lexical, morphological and syntactic aspects of Turkish. Furthermore, they help the students to practice contrastive studies and translation between Swedish and Turkish.

  • 294.
    Csató, Éva
    et al.
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Språkvetenskapliga fakulteten, Institutionen för lingvistik och filologi, Asiatiska och afrikanska språk och kulturer, Turkiska språk.
    Dahlqvist, Bengt
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Språkvetenskapliga fakulteten, Institutionen för lingvistik.
    Megyesi, Beáta
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Språkvetenskapliga fakulteten, Institutionen för lingvistik.
    Saxena, Anju
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Språkvetenskapliga fakulteten, Institutionen för lingvistik.
    Sågvall Hein, Anna
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Språkvetenskapliga fakulteten, Institutionen för lingvistik.
    A Turkish-Swedish parallel corpus: Orhan Pamuk Beyaz Kale-Vita Borgen2006Övrigt (Övrigt vetenskapligt)
  • 295. Cummings, James
    et al.
    Langerth Zetterman, Monica
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Samhällsvetenskapliga fakulteten, Pedagogiska institutionen. Utbildningsvetenskapliga fakulteten, Institutionen för lärarutbildning.
    Legacy Data Migration: A pilot study on the methodological feasibility of conversion and enhancement of electronic resources.2004Ingår i: Joint International Conference of the Association for Literary and Linguistic Computing and the Association for Computers and the Humanities: Göteborg University, June 11 - 16, 2004., 2004Konferensbidrag (Refereegranskat)
    Abstract [en]

    In this paper we will describe a pilot study based on two different subsets of electronic resources to be used in the Virtual Corpus system developed at the Oxford Text Archive (OTA).

    The Virtual Corpus system is designed to make the OTA more useful for researchers by enabling the selection of texts for a corpus on basis of metadata categories in the TEI header resource description. Currently these categories include such fields as language, date, genre, author etc. (Berglund & Wynne, 2003). In order to make the Virtual Corpus system (VC) even more useful the texts would benefit from data enhancement.

    This pilot study's aim is to evaluate the necessary procedures for enhancing the metadata available in the TEI header with further categories and also to explore the possibilities for migration of legacy data in a wide range of formats into a TEI-conformant XML format.

  • 296.
    Dabbaghchian, Saeed
    et al.
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Arnela, Marc
    Engwall, Olov
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    SIMPLIFICATION OF VOCAL TRACT SHAPES WITH DIFFERENT LEVELS OF DETAIL2015Ingår i: Proceedings of the 18th International Congress of Phonetic Sciences. Glasgow, UK, University of Glasgow , 2015, s. 1-5Konferensbidrag (Refereegranskat)
    Abstract [en]

    We propose a semi-automatic method to regenerate simplified vocal tract geometries from very detailed input (e.g. MRI-based geometry) with the possibility to control the level of detail, while maintaining the overall properties. The simplification procedure controls the number and organization of the vertices in the vocal tract surface mesh and can be assigned to replace complex cross-sections with regular shapes. Six different geometry regenerations are suggested: bent or straight vocal tract centreline, combined with three different types of cross-sections; namely realistic, elliptical or circular. The key feature in the simplification is that the cross-sectional areas and the length of the vocal tract are maintained. This method may, for example, be used to facilitate 3D finite element method simulations of vowels and diphthongs and to examine the basic acoustic characteristics of vocal tract in printed physical replicas. Furthermore, it allows for multimodal solutions of the wave equation.

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    fulltext
  • 297.
    Dabbaghchian, Saeed
    et al.
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Arnela, Marc
    Engwall, Olov
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Guasch, Oriol
    Synthesis of VV utterances from muscle activation to sound with a 3d model2017Ingår i: Proceedings of the Annual Conference of the International Speech Communication Association, INTERSPEECH 2017, The International Speech Communication Association (ISCA), 2017, s. 3497-3501Konferensbidrag (Refereegranskat)
    Abstract [en]

    We propose a method to automatically generate deformable 3D vocal tract geometries from the surrounding structures in a biomechanical model. This allows us to couple 3D biomechanics and acoustics simulations. The basis of the simulations is muscle activation trajectories in the biomechanical model, which move the articulators to the desired articulatory positions. The muscle activation trajectories for a vowel-vowel utterance are here defined through interpolation between the determined activations of the start and end vowel. The resulting articulatory trajectories of flesh points on the tongue surface and jaw are similar to corresponding trajectories measured using Electromagnetic Articulography, hence corroborating the validity of interpolating muscle activation. At each time step in the articulatory transition, a 3D vocal tract tube is created through a cavity extraction method based on first slicing the geometry of the articulators with a semi-polar grid to extract the vocal tract contour in each plane and then reconstructing the vocal tract through a smoothed 3D mesh-generation using the extracted contours. A finite element method applied to these changing 3D geometries simulates the acoustic wave propagation. We present the resulting acoustic pressure changes on the vocal tract boundary and the formant transitions for the utterance [Ai].

    Ladda ner fulltext (pdf)
    fulltext
  • 298.
    Dahl, Alva
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Språkvetenskapliga fakulteten, Institutionen för nordiska språk.
    The Graphic and Grammatical Structure of Written Texts2018Ingår i: Studia Neophilologica, ISSN 0039-3274, E-ISSN 1651-2308, Vol. 90, nr Supplement 1, s. 24-36Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    From a linguistic perspective, punctuation relates to grammar and semantics as well as to pragmatics and stylistics. In this paper, I will focus on some grammatical aspects of punctuation in contemporary Swedish, or rather: how awareness of punctuation is necessary for understanding the structure of written texts; but also, how the understanding of punctuation requires an awareness of the partly specific conditions of written language. Punctuation defines entities and hierarchies that may or may not correspond to abstract linguistic categories like phrases and clauses. The graphic word and the graphic sentence, for example, are structural units that in actual written texts follow conventions independent from abstract grammar, as they are defined respectively by word-spacing and initial capital plus final period, exclamation mark or question mark. This makes possible an interesting interplay between grammatical and graphic units. The study is based on a qualitative analysis of the punctuation in three contemporary Swedish novels.

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    fulltext
  • 299.
    Dahl, Sofia
    et al.
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Musikakustik.
    Friberg, Anders
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Musikakustik.
    Expressiveness of musician's body movements in performances on marimba2004Ingår i: Gesture-Based Communication in Human-Computer Interaction / [ed] Camurri, A.; Volpe, G., Genoa: Springer Verlag , 2004, s. 479-486Konferensbidrag (Refereegranskat)
    Abstract [en]

    To explore to what extent emotional intentions can be conveyed through musicians’ movements, video recordings were made of amarimba player performing the same piece with the intentions Happy, Sad, Angry and Fearful. 20 subjects were presented video clips, without sound, and asked to rate both the perceived emotional content as well as the movement qualities. The video clips were presented in different conditions, showing the player to different extent. The observers’ ratings forthe intended emotions confirmed that the intentions Happiness, Sadness and Anger were well communicated, while Fear was not. Identification of the intended emotion was only slightly influenced by the viewing condition. The movement ratings indicated that there were cues that the observers used to distinguish between intentions, similar to cues found for audio signals in music performance.

  • 300.
    Dahlbäck, Nils
    et al.
    Linköpings universitet, Institutionen för datavetenskap, Interaktiva och kognitiva system. Linköpings universitet, Filosofiska fakulteten.
    Forsblad, Mattias
    Linköpings universitet, Institutionen för samhälls- och välfärdsstudier, Avdelningen Åldrande och social förändring. Linköpings universitet, Filosofiska fakulteten.
    Hydén, Lars-Christer
    Linköpings universitet, Institutionen för samhälls- och välfärdsstudier, Avdelningen Åldrande och social förändring. Linköpings universitet, Filosofiska fakulteten.
    Reflections and Comments on Research on Memory and Conversation From an Ethnographic Perspective2019Ingår i: Topics in Cognitive Science, ISSN 1756-8757, E-ISSN 1756-8765, Vol. 11, nr 4, s. 817-820Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Reflecting on three papers included in this issue, we suggest that research on memory and conversation could benefit by making more use of analyzing real-life situations or close to real-life scenarios, full speech and body interactions, and the interaction with the physical environment. We also suggest that the process of remembering during conversation is investigated on a level of detail and sequence that allow for locating actual functions of different actions. Finally, we suggest that a life-span perspective on transactive memory systems must also model the development, maintenance, breakdown, and reestablishment of such systems.

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