Welcome to the Wiki of the seminar ''Information Extraction'' in the winter semester 2013 / 2014

This seminar will be given by Elmar Haußmann and Sabine Storandt, from the chair of Prof. Dr. Hannah Bast (who will also attend the sessions). The seminar will take place every Wednesday, 4:00 pm - 6:00 pm ct., in the seminar room 00-007 in building 106. There will be no session on Wednesday, December 25, 2013, on Wednesday, January 1, 2014 (christmas break) and on Wednesday, November 6, 2013. Therefore, depending on the number of talks/participants, we will have at most 14 sessions.

Information Extraction is the task of extracting (structured) information from natural language text. We will cover interesting topics in this area with a focus on current state-of-the-art systems for Open Information Extraction. We will also cover the NLP background required for understanding.

Topics

The topics and dates will be assigned in the first sessions. Here is a tentative list of topics and systems (each of which will be roughly explained in the first session):

• NLP Basics 1/2 (POS tagging, chunking, NER, NED), Sven Lieber
• NLP Basics 2/2 (constituent / dependency parsing, SRL), Sven Lieber

• TextRunner + KnowItAll

• Distant supervision for RE without labeled data

• OpenIE using Wikipedia

• Never Ending Language Learning (Demo / Data available)

• SRL-IE

• ReVerb + R2A2 (Code available), Patrick Notz

• OLLIE (Code available), Max Lotstein

• PATTY (Demo available)

• Dependency based OpenIE (Code available)

• ClausIE (Code available)

• Relation Extraction With Matrix Factorization (Code available), Licón José

• Integrating Syntactic and Semantic Analysis into OpenIE

• TREC Question Answering Track

• Lymba (QA System)

Sessions

1. Wednesday October 23, 2013: Introduction and Topic Assignment Slides (Introduction + Organization, Topics)

2. Wednesday November 6, 2013: Machine Learning Introduction

3. Wednesday November 13, 2013: NLP Basics

4. Wednesday November 20, 2013: Reverb

5. Wednesday November 27, 2013: OLLIE

6. Wednesday December 4, 2013: Relation Extraction With Matrix Factorization

7. Wednesday December 11, 2013: tbd

8. Wednesday December 18, 2013: tbd

9. Wednesday January 8, 2013: tbd

10. Wednesday January 15, 2013: tbd

11. Wednesday January 22, 2013: tbd

12. Wednesday January 29, 2013: tbd

13. Wednesday February 5, 2013: tbd

14. Wednesday February 12, 2013: tbd

Attention: Due to illness or assignment of further topics the dates might be postponed by a week or two. We will inform you about changes via email over the Daphne system (so please register), and update this webpage as soon as possible if any shifts occur.

Dates marked 'tbd' are tentative up to now and will be only used if further topics get assigned.

If you want to attend the seminar contact us as soon as possible but no later than 06.11.2013 (!). Please contact us or come by our office and we will discuss what topics are available.