seminar topics and projects giuseppe attardi dipartimento di informatica università di pisa
Post on 13-Dec-2015
212 Views
Preview:
TRANSCRIPT
Seminar Topics and Projects
Giuseppe AttardiGiuseppe AttardiDipartimento di InformaticaDipartimento di Informatica
Università di PisaUniversità di Pisa
Università di Pisa
Sentiment AnalysisSentiment Analysis
Data from Evalita 2014:Data from Evalita 2014: Corpus of annotated tweets
Experiment using Word EmbeddingsExperiment using Word Embeddings Use DeepNL library:
• https://github.com/attardi/deepnl
Collect positive/negative tweets from Twitter, selecting those which contain positive/negative emoticons.
See also:http://districtdatalabs.silvrback.com/modern-methods-for-sentiment-analysis
Negation/Speculation Negation/Speculation ExtractionExtraction Determine the scope of negative or Determine the scope of negative or
speculative statements:speculative statements: The lyso-platelet had no effect MnlI-AluI could suppress the basal-level activity
Approach:Approach: Classifier for identifying cues Classifier to determine scope
DataData BioScope collection
Corpus of Product ReviewsCorpus of Product Reviews
Download reviews from online shopDownload reviews from online shop Classify as positive/negative according to Classify as positive/negative according to
starsstars Train classifier to assign scoreTrain classifier to assign score
Relation ExtractionRelation Extraction
Exploit word embeddings as features + extra Exploit word embeddings as features + extra hand-coded featureshand-coded features
Use the Factor Based Compositional Use the Factor Based Compositional Embedding Model (FCM)Embedding Model (FCM)http://www.cs.jhu.edu/~mrg/publications/finere-naacl-2015.pdf
SemEval 2014 Relation Extraction dataSemEval 2014 Relation Extraction data
Entity Linking with Entity Linking with EmbeddingsEmbeddings Experiment with technique:Experiment with technique:
R. Blanco, G. Ottaviano, E. Meiji. 2014. Fast and Space-Efficient Entity Linking in Queries.
labs.yahoo.com/_c/uploads/WSDM-2015-blanco.pdf
Extraction of Semantic Extraction of Semantic HierarchiesHierarchies Use word embeddings as measure of
semantic distance Use Wikipedia as source of text http://ir.hit.edu.cn/~jguo/papers/acl2014-
hypernym.pdf
Aconitum
Ranuncolacee
Plant
Organism
Suggested Topics for Suggested Topics for SeminarsSeminars
ClusteringClustering
Singular Value DecompositionSingular Value Decomposition S. Osiński, D. Weiss. 2004.S. Osiński, D. Weiss. 2004. Conceptual Conceptual
Clustering Using Lingo Algorithm: Evaluation on Clustering Using Lingo Algorithm: Evaluation on Open Directory Project Data. Open Directory Project Data. http://www.cs.put.poznan.pl/dweiss/site/publicatihttp://www.cs.put.poznan.pl/dweiss/site/publications/download/iipwm-osinski-weiss-stefanowski-ons/download/iipwm-osinski-weiss-stefanowski-2004-lingo.pdf2004-lingo.pdf
S. Osiński, D. Weiss. 2005. A Concept-Driven S. Osiński, D. Weiss. 2005. A Concept-Driven Algorithm for Clustering Search Results. IEEE Algorithm for Clustering Search Results. IEEE Intelligent Systems. Intelligent Systems. http://dollar.biz.uiowa.edu/~nstreet/01439479.pdfhttp://dollar.biz.uiowa.edu/~nstreet/01439479.pdf
Recommender SystemRecommender System
Y. Koren. R. Bell. C. Volinski. Matrix Y. Koren. R. Bell. C. Volinski. Matrix Factorization Techniques for recommender Factorization Techniques for recommender systems.systems.
http://www2.research.att.com/~volinsky/http://www2.research.att.com/~volinsky/papers/ieeecomputer.pdfpapers/ieeecomputer.pdf
Opinion MiningOpinion Mining
B. Liu. Sentiment Analisis and Subjectivity. B. Liu. Sentiment Analisis and Subjectivity. 2010. Handbook of NLP. 2010. Handbook of NLP. http://www.cs.uic.edu/~liub/FBS/NLP-http://www.cs.uic.edu/~liub/FBS/NLP-handbook-sentiment-analysis.pdfhandbook-sentiment-analysis.pdf
Semantic Role LabelingSemantic Role Labeling
http://ufal.mff.cuni.cz/conll2009-st/task-http://ufal.mff.cuni.cz/conll2009-st/task-description.htmldescription.html
Hierarchical Machine Hierarchical Machine TranslationTranslation A A HierarchicalHierarchical Phrase-Based Model for Phrase-Based Model for
Statistical Statistical Machine TranslationMachine Translation. David Chiang. David Chiang
www.isi.edu/~chiang/papers/chiang-acl05.pdfwww.isi.edu/~chiang/papers/chiang-acl05.pdf Translation by means of Word EmbeddingsTranslation by means of Word Embeddings
J, Bengio 2014.
Recognizing Textual Recognizing Textual EntailmentEntailment http://www.nist.gov/tac/2011/RTE/http://www.nist.gov/tac/2011/RTE/
Question AnsweringQuestion Answering
Watson:Watson: http://www.aaai.org/Magazine/Watson/watson.php
TAC:TAC: http://www.nist.gov/tac/2008/qa/index.html
top related