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Automating Text Categorization with Machine Learning: Error Responsibility in a multi-layer hierarchy
Linköping University, Department of Computer and Information Science, Software and Systems.
2017 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The company Ericsson is taking steps towards embracing automating techniques and applying them to their product development cycle. Ericsson wants to apply machine learning techniques to automate the evaluation of a text categorization problem of error reports, or trouble reports (TRs). An excess of 100,000 TRs are handled annually.

This thesis presents two possible solutions for solving the routing problems where one technique uses traditional classifiers (Multinomial Naive Bayes and Support Vector Machines) for deciding the route through the company hierarchy where a specific TR belongs. The other solution utilizes a Convolutional Neural Network for translating the TRs into low-dimensional word vectors, or word embeddings, in order to be able to classify what group within the company should be responsible for the handling of the TR. The traditional classifiers achieve up to 83% accuracy and the Convolutional Neural Network achieve up to 71% accuracy in the task of predicting the correct class for a specific TR.

Place, publisher, year, edition, pages
2017. , 56 p.
Keyword [en]
error handling, cnn, convolutional neural network, text classification
National Category
Computer Science
Identifiers
URN: urn:nbn:se:liu:diva-139204ISRN: LIU-IDA/LITH-EX-A--17/026--SEOAI: oai:DiVA.org:liu-139204DiVA: diva2:1119801
External cooperation
Alexander Persson
Subject / course
Computer science
Presentation
2017-06-09, Alan Turing, 14:30 (English)
Supervisors
Examiners
Available from: 2017-07-06 Created: 2017-07-04 Last updated: 2017-07-06Bibliographically approved

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fulltext(1121 kB)76 downloads
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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf