News

• 2018-03-01: I am now working as Research Scientist at the Bosch Center for Artificial Intelligence.
• 2018-02-26: A couple of papers got accepted at The Web Conference (demo paper), TempWeb'18, HQA'18, and JCDL'18. More details follow soon.
• 2017-11-23: I was appointed a senior researcher position and am now the head of the "Text Analysis" group at MPI for Informatics, D5: Databases and Information Systems.
• 2017-09-01: I will teach the core course IRDM with Jilles Vreeken this semester. The course website can be found here.

Book

• "Domain-Sensitive Temporal Tagging" (printed and digital editions).

HeidelTime

• multilingual, domain-sensitive temporal tagger
• 13 languages with manually created resources, 200+ languages with automatically created resources
• plus: English temponym tagging
• HeidelTime github page

Demos

• HeidelTime: multilingual, domain-sensitive temporal tagger
• tiwoli: the today in world literature app for Android and iOS
• tiwiki: a time-aware search engine for Wikipedia
• dateRome: a search engine to explore street names with date references on maps with explanations

• Natural Language Processing
• Information Retrieval (tiwiki, dateRome)
• Information Extraction
• Text Mining
• Temoral Tagging (check out our book on Domain-sensitive Temporal Tagging; HeidelTime: @ Github, online demo)
• Digital Humanities (heureCLEA project, Jahrestage project, tiwoli)

Positions

• since November 2017
  Senior Researcher and head of the "Text Analysis" group at the Max-Planck-Institute for Informatics (Saarbrücken, Germany)
• October 2015 - November 2017
  Postdoctoral Researcher at the Max-Planck-Institute for Informatics (Saarbrücken, Germany)
• March 2015 - September 2015
  Postdoctoral Researcher at Heidelberg Universtiy, Database Systems Research Group (Heidelberg, Germany)
• September 2009 - February 2015
  Research Assistant at Heidelberg Universtiy, Database Systems Research Group (Heidelberg, Germany)
• April 2007 - March 2008
  Student tutor at Heidelberg Universtiy, Department of Computational Linguistics (Heidelberg, Germany)
• October 2006 - April 2007
  Intern at GlaxoSmithKline, R&D IT, Knowledge & Discovery Systems group (Upper Merion, PA, USA)
• May 2004 - September 2006 and September 2007 - April 2009
  Student assistant at Fraunhofer Institute for Algorithms and Scientific Computing SCAI (Sankt Augustin, Germany)

Education

• April 2010 - March 2015
  PhD study at Heidelberg University, Institute of Computer Science (Heidelberg, Germany)
• October 2002 - June 2009
  Study of Computational Linguistics and Economics at Heidelberg University (Heidelberg, Germany)

• Information Retrieval and Data Mining
  core lecture, Universität des Saarlandes, winter '17/'18, (with Jilles Vreeken)
• Big Data and Advanced Database Concepts [evaluation]
  lecture, Hochschule Karlsruhe, summer '17, (with Andreas Schmidt)
• Information Extraction [evaluation]
  seminar, Universität des Saarlandes, winter '16/'17
• Advanced Topics in Information Retrieval [evaluation]
  lecture, Universität des Saarlandes, summer '16, (with Vinay Setty)
• Event Extraction
  seminar, Universität Heidelberg, summer'15, (with Michael Gertz, Johanna Geiß, Thomas Bögel, Andreas Spitz)
• Recommender Systems
  seminar, Universität Heidelberg, summer '14, (with Michael Gertz, Christian Sengstock, Thomas Bögel)
• Social Networks Data Analytics
  seminar, Universität Heidelberg, winter '13/'14, (with Michael Gertz, Christian Sengstock, Thomas Bögel)
• Topic Models
  seminar, Universität Heidelberg, summer '13, (with Michael Gertz, Christian Sengstock)
• Text Mining
  seminar, Universität Heidelberg, winter '11/'12, (with Michael Gertz)
• Spatio-temporal Logics and Reasoning
  seminar, Universität Heidelberg, winter '10/'11, (with Michael Gertz)
• Text Mining
  seminar, Universität Heidelberg, summer '10, (with Michael Gertz)

• [pdf] Jannik Strötgen
  Domain-sensitive Temporal Tagging for Event-centric Information Retrieval.
  PhD thesis, Institute of Computer Science, Heidelberg University, 2015.
• [pdf] Jannik Strötgen
  UTEMPL - Aufbau und Evaluierung einer UIMA-basierten Textmining Pipeline für biomedizinische Literatur.
  Magisterarbeit, Department of Computational Linguistics, Heidelberg University, 2009.

Jannik Strötgen, Michael Gertz: Domain-Sensitive Temporal Tagging. Synthesis Lectures on Human Language Technologies. Morgan & Claypool Publishers, 2016.

Projects

• TimeSEA - Time-centric Search, Exploration, and Analytics
  project website
• heureCLÉA - BMBF-funded ehumanities project with naratologists from Universtiy of Hamburg and computer scientists from Heidelberg University
  project website
• HeidelTime: multilingual, domain-sensitive and easy-to-extend temporal tagger
  github page, online demo, project page
• Jahrestage: ehumanities project focussing on temporal expressions occurring in literary texts
  project website, tiwoli app for Android, tiwoli app for iOS (thanks Thomas!)

Activities

• Guest editor
  * Special issue of Information Processing and Management journal on "Time and Information Retrieval" with Leon Derczynski, Ricardo Campos, and Omar Alonso (CfP, Introduction to the Special Issue).
• Conference tutorial lecturer
  * DHd 2016 tutorial on "CATMA - Eine Plattform zum kollaborativen und automatisierten Annotieren und Analysieren von Texten" with Thomas Bögel, Evelyn Gius, and Marco Petris (description)
  * DH 2014 tutorial on "A Collaborative, Indeterministic and partly Automatized Approach to Text Annotation" with Thomas Bögel, Evelyn Gius, and Marco Petris (description, accompanying material)
• PC member / reviewer
  * CIKM, International Conference on Information and Knowledge Management (2018, 2017)
  * SIGIR, ACM SIGIR Conference on Research and Development in Information Retrieval (2018)
  * ACL, Association for Computational Linguistics (2018)
  * NAACL-HLT, North American Chapter of the Association for Computational Linguistics - Human Language Technologies, (2018)
  * DH, Digital Humanities Conference (2018, 2017)
  * TempWeb, Temporal Web Analytics Workshop (2018, 2017, 2016)
  * LaTeCH, Workshop on Language Technology for Cultural Heritage, Social Sciences, and Humanities (2017, 2016)
  * Drift-a-LOD, Workshop on the Detection, Representation and Management of Concept Drift in Linked Open Data (2017, 2016)
  * Teach4DH, Teaching NLP for Digital Humanities Workshop (2017)
  * EMNLP, Conference on Empirical Methods in Natural Language Processing (2016, 2015)
  * IDEAS, International Database Engineering & Applications Symposium (2016, 2015, 2014)
  * SemEval, International Workshop on Semantic Evaluation (2015, 2013)
  * SIMBig, International Symposium on Information Management and Big Data (2015)
• Journal reviewer
  * TALIP, ACM Transactions on Asian Language Information Processing (2017, 2014, 2013)
  * IPM, Information Processing & Management (2015, 2014)
  * AI, Artificial Intelligence Journal (2011)
  * TCBB, IEEE/ACM Transactions on Computational Biology and Bioinformatics (2010)
• Book reviewer
  * Synthesis Lectures on Human Language Technologies, Morgan & Claypool Publishers (2017)
• External Reviewer
  * LREC, Language Resources and Evaluation Conference (2014)
  * CIKM, Conference on Information and Knowledge Management (2013, 2011, 2010)
  * ACM GIS, Conference on Advances in Geographic Information Systems (2011)
  * IWGS International Workshop on GeoStreaming (2010)
• Reviewer for Funding Agencies
  * Trans-Atlantic Platform for the Social Sciences and Humanities (2016)

[Google Scholar] [DBLP] [ACM] [ACL] [MPG PuRe]

2018

• Agarwal, Strötgen, Hoffart, del Corro, Weikum
  diaNED: Time-Aware Named Entity Disambiguation for Diachronic Corpora.
  ACL'18, Melbourne, Australia, July 15-20, 2018.
  [accepted] (short paper)
  
  
• Strötgen, Andrade, Gupta
  Putting Dates on the Map: Harvesting and Analyzing Street Names with Date Mentions and their Explanations.
  JCDL'18, Fort Worth, Texas, June 3-6, 2018.
  [accepted] (full paper)
  
  
• Gupta, Berberich, Strötgen, Zainalipour-Yazti
  Generating Semantic Aspects for Queries.
  JCDL'18, Fort Worth, Texas, June 3-6, 2018.
  [accepted] (short paper)
  
  
• Strötgen, Minard, Lange, Speranza, Magnini
  KRAUTS: A German Temporally Annotated News Corpus.
  LREC'18, Miyazaki, Japan, May 7 - 12, 2018.
  [pdf] (full paper)
  
  
• Popat, Mukherjee, Strötgen, Weikum
  CredEye: A Credibility Lens for Analyzing and Explaining Misinformation.
  WWW'18, Lyon, France, April 23 - 27, 2018.
  [pdf] (demo paper)
  
  
• Jia, Abujabal, Roy, Strötgen, Weikum
  TempQuestions: A Benchmark for Temporal Question Answering.
  HQA'18 (WWW"18 Companion), Lyon, France, April 23, 2018.
  [pdf] (full paper)
  
  
• Spitz, Strötgen, Gertz
  Predicting Document Creation Times in News Citation Networks.
  TempWeb'18 (WWW"18 Companion), Lyon, France, April 23, 2018.
  [pdf] (full paper)
  
  
• Gius, Reiter, Strötgen, Willand
  SANTA: Systematische Analyse Narrativer Texte durch Annotation.
  DHd'18, Köln, Germany, February 26 - March 2, 2018.
  [accepted] (extended abstract for oral presentation)
  
  

2017

• Degaetano-Ortlieb, Strötgen
  Diachronic Variation of Temporal Expressions in Scientific Writing through the Lens of Relative Entropy.
  GSCL'17, Berlin, Germany, September 13-15, 2017.
  [pdf] (full paper)
  
  
• Reiter, Gius, Strötgen, Willand
  A Shared Task for a Shared Goal: Systematic Annotation of Literary Texts.
  DH'17, Montreal, Canada, August 8-11, 2017.
  [pdf] (extended abstract for oral presentation; short paper)
  
  
• Boldyrev, Spaniol, Strötgen, Weikum
  SESAME: European Statistics Explored via Semantic Alignment onto Wikipedia.
  WWW'17, Perth, Australia, April 3-7, 2017.
  [pdf] (demo paper)
  
  
• Andrade, Strötgen
  All Dates Lead to Rome: Extracting and Explaining Temporal References in Street Names.
  WWW'17, Perth, Australia, April 3-7, 2017.
  [pdf] (poster paper)
  
  
• Agarwal, Strötgen
  Tiwiki: Searching Wikipedia with Temporal Constraints.
  TempWeb'17, Perth, Australia, April 3, 2017.
  [pdf] (full paper)
  
  
• Popat, Mukherjee, Strötgen, Weikum
  Where the Truth Lies: Explaining the Credibility of Emerging Claims on the Web and Social Media.
  WWW'17 (Web Science Track), Perth, Australia, April 3-7, 2017.
  [pdf] (full paper)
  
  
• Jäschke, Strötgen, Krotova, Fischer
  "Der Helmut Kohl unter den Brotaufstrichen". Zur Extraktion vossianischer Antonomasien aus großen Zeitungskorpora.
  DHd'17, Bern, Switzerland, February 13-18, 2017.
  [pdf] (extended abstract for oral presentation, full paper)
  
  
• Strötgen
  Multilingual and Domain-sensitive Temporal Tagging with HeidelTime.
  DGfS (Computational linguistics poster session), Saarbrücken, Germany, March 8-10, 2017.
  [pdf] (abstract for poster presentation)
  
  

2016

• Strötgen
  Domänen-sensitives Temporal Tagging für Event-zentriertes Information Retrieval.
  Ausgezeichnete Informatikdissertationen 2015.
  Lecture Notes in Informatics, GI-Edition, 2016.
  [pdf] (invited paper)
  
  
• Strötgen, Gertz
  Domain-Sensitive Temporal Tagging.
  Synthesis Lectures on Human Language Technologies.
  Morgan & Claypool Publishers, 2016.
  [link] (book)
  
  
• Popat, Mukherjee, Strötgen, Weikum
  Credibility Assessment of Textual Claims on the Web.
  CIKM'16, Indianapolis, IN, 2016.
  [pdf] (short paper)
  
  
• Gupta, Strötgen, Berberich
  EventMiner: Mining Events from Annotated Documents.
  ICTIR'16, Newark, DE, USA, 2016.
  [pdf] (full paper)
  
  
• Gupta, Strötgen, Berberich
  DigitalHistorian: Search & Analytics Using Annotations.
  HistoInformatics'16, Kraków, Poland, 2016.
  [pdf] (short paper)
  
  
• Bögel, Gius, Jacke, Strötgen
  From Order to Order Switch. Mediating between Complexity and Reproducibility in the Context of Automated Literary Annotation.
  DH'16, Kraków, Poland, 2016.
  [link] (extended abstract for oral presentation; long paper)
  
  
• Derczynski, Strötgen, Maynard, Greenwood, Jung
  GATE-Time: Extraction of Temporal Expressions and Events.
  LREC'16, Portorož, Slovenia, 2016.
  [pdf] (full paper)
  
  
• Kuzey, Strötgen, Setty, Weikum
  Temponym Tagging: Temporal Scopes for Textual Phrases.
  TempWeb'16, Montreal, Canada, April 12, 2016.
  [pdf] (demo paper)
  
  
• Kuzey, Setty, Strötgen, Weikum
  As Time Goes By: Comprehensive Tagging of Textual Phrases with Temporal Scopes.
  WWW'16, Montreal, Canada, April 11-15, 2016.
  [pdf] (full paper)
  
  

2015

• Bögel, Gertz, Gius, Jacke, Meister, Petris, Strötgen
  Collaborative Text Annotation Meets Machine Learning: heureCLÉA, a Digital Heuristic of Narrative.
  DHCommons journal, 2015.
  [url] (journal article)
  
  
• Geiß, Spitz, Strötgen, Gertz
  The Wikipedia Location Network - Overcoming Borders and Oceans.
  GIR'15, Paris, France, November 26-27, 2015.
  [pdf] (short paper)
  
  
• Fischer, Strötgen
  Un calendario de la literatura española (aplicación para Android e iOS).
  HDH'15, Madrid, Spain, October 5-7, 2015.
  [pdf] (extended abstract for oral presentation; best long submission award)
  
  
• Derczynski, Strötgen, Campos, Alonso
  Time and Information Retrieval: Introduction to the Special Issue.
  Information Processing Management (IPM), 2015. Elsevier.
  [pdf] (journal article)
  
  
• Strötgen, Gertz
  A Baseline Temporal Tagger for all Languages.
  EMNLP'15, Lisbon, Portugal, September 17-21, 2015.
  [pdf] (short paper)
  
  
• Bögel, Strötgen, Gertz
  A Hybrid Approach to Extract Temporal Signals from Narratives.
  GSCL'15, Duisburg-Essen, Germany, September 30 - October 2, 2015.
  [pdf] (short paper)
  
  
• Gius, Jacke, Meister, Bögel, Strötgen
  Beyond Pragmatics: Disciplinary Profits of Interdisciplinary Approaches.
  DH'15, Sydney, Australia, June 29 - July 3, 2015.
  [link] (extended abstract for oral presentation; short paper)
  
  
• Fischer, Strötgen
  When Does German Literature Take Place? - On the Analysis of Temporal Expressions in Large Corpora.
  DH'15, Sydney, Australia, June 29 - July 3, 2015.
  [pdf] (extended abstract for oral presentation; short paper)
  
  
• Moulahi, Strötgen, Gertz, Tamine-Lechani
  HeidelToul: A Baseline Approach for Cross-document Event Ordering.
  SemEval'15, Denver, Colorado, June 4-5, 2015.
  [pdf] (full paper)
  
  
• Spitz, Strötgen, Bögel, Gertz
  Terms in Time and Times in Context: A Graph-based Term-Time Ranking Model.
  TempWeb'15, Florence, Italy, May 18, 2015.
  [pdf] (full paper)
  
  
• Strötgen
  Domain-sensitive Temporal Tagging for Event-centric Information Retrieval.
  PhD thesis, Institute of Computer Science, Heidelberg University, 2015.
  [pdf] (thesis)
  
  
• Fischer, Strötgen
  Wann findet die deutsche Literatur statt? Zur Untersuchung von Zeitausdrücken in großen Korpora.
  DHd'15, Graz, Austria, February 23-27, 2015.
  [pdf] (extended abstract for oral presentation)
  
  
• Bögel, Gertz, Gius, Jacke, Meister, Petris, Strötgen
  Gleiche Textdaten, unterschiedliche Erkenntnisziele? Zum Potential vermeintlich widersprüchlicher Zugänge zu Textanalyse.
  DHd'15, Graz, Austria, February 23-27, 2015.
  [pdf] (extended abstract for oral presentation)
  
  
• Bögel, Petris, Strötgen, Gertz
  An End-to-End Integration of Automatic Annotations into CATMA.
  DHd'15, Graz, Austria, February 23-27, 2015.
  [pdf] (extended abstract for poster presentation)
  
  

2014

• Manfredi, Strötgen, Zell, Gertz
  HeidelTime at EVENTI: Tuning Italian Resources and Addressing TimeML's Empty Tags.
  EVALITA'14, Pisa, Italy, December 11, 2014.
  [pdf] (full paper, winner of the temporal tagging subtask)
  
  
• Bögel, Strötgen, Gertz
  Computational Narratology: Extracting Tense Clusters from Narrative Texts.
  LREC'14, Reykjavik, Iceland, May 21-31, 2014.
  [pdf] (full paper)
  
  
• Strötgen, Bögel, Zell, Armiti, Canh, Gertz
  Extending HeidelTime for Temporal Expressions Referring to Historic Dates.
  LREC'14, Reykjavik, Iceland, May 21-31, 2014.
  [pdf] (full paper)
  
  
• Li, Strötgen, Zell, Gertz
  Chinese Temporal Tagging with HeidelTime.
  EACL'14, Gothenburg, Sweden, April 16-30, 2014.
  [pdf] (short paper)
  
  
• Strötgen, Armiti, Canh, Zell, Gertz
  Time for More Languages: Temporal Tagging of Arabic, Italian, Spanish, and Vietnamese.
  Transactions on Asian Language Information Processing (TALIP), 2014. ACM.
  [pdf] (journal article)
  
  
• Bögel, Strötgen, Mayer, Gertz
  A Flexible NLP Pipeline for Computational Narratology.
  DHd'14, Passau, Germany, March 25-28, 2014.
  [pdf] (extended abstract for poster presentation)
  
  

2013

• Strötgen, Gertz
  Proximity²-aware Ranking for Textual, Temporal, and Geographic Queries.
  CIKM'13, San Francisco, CA, USA, October 27 - November 1, 2013.
  [pdf] (short paper) [extended version]
  
  
• Strötgen, Gertz
  Multilingual and Cross-domain Temporal Tagging.
  Language Resources and Evaluation, 2013. Springer.
  [pdf] (journal article)
  
  
• Strötgen, Zell, Gertz
  HeidelTime: Tuning English and Developing Spanish Resources for TempEval-3.
  SemEval'13, Atlanta, GA, USA, June 13-15, 2013.
  [pdf] (full paper, winner of temporal tagging subtask for English and Spanish)
  
  
• Kapp, Strötgen, Gertz
  EvenPers: Event-based Person Exploration and Correlation.
  BTW'13, Magdeburg, Germany, March 11-15, 2013.
  [pdf] (demo paper)
  
  

2012

• Keller, Strötgen, Gertz
  Event-centric Document Similarity for Biomedical Literature.
  SMBM'12, Zurich, Switzerland, September 3-4, 2012.
  [pdf] (short paper)
  
  
• Strötgen, Gertz
  Event-centric Search and Exploration in Document Collections.
  JCDL'12, Washington, DC, June 10-14, 2012.
  [pdf] (full paper, nominated for Best Student Paper)
  
  
• Strötgen, Gertz
  Temporal Tagging on Different Domains: Challenges, Strategies, and Gold Standards.
  LREC'12, Istanbul, Turkey, May 21-27, 2012.
  [pdf] (full paper)
  
  
• Strötgen, Alonso, Gertz
  Identification of Top Relevant Temporal Expressions in Documents.
  TempWeb"12, Lyon, France, April 17, 2012.
  [pdf] (full paper)
  
  
• Strötgen, Alonso, Gertz
  Retro: Time-based Exploration of Product Reviews.
  ECIR'12, Barcelona, Spain, April 1-5, 2012.
  [pdf] (demo paper)
  
  

2011

• Strötgen, Gertz
  WikiWarsDE: A German Corpus of Narratives Annotated with Temporal Expressions.
  GSCL'11, Hamburg, Germany, September 28-30, 2011.
  [pdf] (full paper)
  
  
• Strötgen, Gertz, Junghans
  An Event-centric Model for Multilingual Document Similarity.
  SIGIR'11, Beijing, China, July 24-28, 2011.
  [pdf] (full paper)
  
  
• Alonso, Strötgen, Baeza-Yates, Gertz
  Temporal Information Retrieval: Challenges and Opportunities.
  TempWeb'11, Hyderabad, India, March 28, 2011.
  [pdf] (full paper)
  
  

2010

• Strötgen, Gertz
  TimeTrails: A System for Exploring Spatio-Temporal Information in Documents.
  VLDB'10, Singapore, September 13-18, 2010.
  [pdf] (demo paper)
  
  
• Strötgen, Gertz
  HeidelTime: High Quality Rule-based Extraction and Normalization of Temporal Expressions.
  SemEval'10, Uppsala, Sweden, July 15-16, 2010.
  [pdf] (system paper, winner of temporal tagging subtask for English)
  
  
• Strötgen, Gertz, Popov
  Extraction and Exploration of Spatio-Temporal Information in Documents.
  GIR'10, Zurich, Switzerland, February 18-19, 2010.
  [pdf] (full paper)
  
  

Before

• Strötgen, Fluck, Holler
  Dependenz-basierte Relationsextraktion mit der UIMA-basierten Text-Mining Pipeline UTEMPL.
  GSCL'09, Potsdam, Germany, September 30 - October 2, 2009.
  [pdf] (full paper)
  
  
• Strötgen
  UTEMPL - Aufbau und Evaluierung einer UIMA-basierten Textmining Pipeline für biomedizinische Literatur.
  Magisterarbeit, Department of Computational Linguistics, Heidelberg University, 2009.
  [pdf] (thesis)
  
  
• Wermter, Fluck, Strötgen, Geißler, Hahn
  Recognizing Noun Phrases in Biomedical Text: An Evaluation of Lab Prototypes and Commercial Chunkers.
  SMBM'05, Hinxton, England, 2005.
  [pdf] (full paper)
  
  

• [pdf] Tiwiki: Searching Wikipedia with Temporal Constraints.
  TempWeb 2017, Montreal, Canada, April 3, 2017.
  
• [pdf] Time for Text Mining and Information Retrieval.
  MPI-INF/MPI-SWS Joint Lecture Series, Saarbrücken, Germany, January 11, 2017.
  (invited by Prof. Dr. Gerhard Weikum)
  

• Natural Language Processing, Responsibly.
  Dagstuhl Seminar "Data, Responsibly", Dagstuhl, Germany, July 21, 2016.
  
• Temponym Tagging, Comprehensive Tagging of Textual Phrases with Temporal Scopes.
  StatNLP Colloquium, Heidelberg, Germany, June 8, 2016.
  (invited talk, Prof. Dr. Stefan Riezler, Prof. Dr. Michael Gertz)
  
• Zeit für bessere Suche.
  GI Dissertationspreis 2015 Kolloquium
  Dagstuhl, Germany, May 2, 2016.
  
• [pdf] Temponym Tagging: Temporal Scopes for Textual Phrases.
  TempWeb 2016, Montreal, Canada, April 10, 2016.
  

• Temporal Tagging for Text Mining Applications.
  Bosch Corporate Research, Renningen, Germany, July 28, 2015.
  (invited talk, Dr. Michael Hanselmann)
  
• Event-centric Information Retreival.
  MPI, Saarbrücken, Germany June 23, 2015.
  (invited talk, Prof. Dr. Gerhard Weikum)
  
• "Literjahrtur" - eine Kalender-App für Android mit Daten aus einem weltliterarischen Korpus.
  DARIAH-DE Workshop "Warum nicht mal mobil? Apps in den Digital Humanities", Darmstadt, Germany, April 24, 2015.
  (invited talk, together with Frank Fischer)
  
• Multilingual and Domain-sensitive Temporal Tagging for Text Analytics.
  SAP Innovation@SSI&SolMan Presentation Series, April 29, 2015.
  (invited talk, Michael Laux, SAP)
  
• [pdf] Domain-sensitive Temporal Tagging for Event-centric Information Retrieval.
  UKP Colloquial, Darmstadt, Germany, April 16, 2015.
  (invited talk, Prof. Dr. Iryna Gurevych)
  
• Domain-sensitive Temporal Tagging for Event-centric Information Retrieval.
  PhD defense, Heidelberg University, Heidelberg, Germany, March 2, 2015.
  
• [pdf] Wann findet die deutsche Literatur statt?
  DHd 2015, Graz, Austria, February 27, 2015.
  (together with Frank Fischer)
  
• Domain-sensitive Temporal Tagging for Event-centric Information Retrieval.
  NLP Lab at DFKI, Berlin, Germany, February 2, 2015.
  (invited talk, Prof. Dr. Hans Uszkoreit)
  

• Proximity²-aware Ranking for Textual, Temporal, and Geographic Queries.
  CIKM 2013, San Francisco, CA, USA, October 28, 2013.
  
• Domain-sensitive Temporal Tagging for Event-centric Information Retrieval.
  WBI Forschungsseminar, HU Berlin, Germany, June 24, 2013.
  (invited talk, Prof. Dr. Ulf Leser)
  
• HeidelTime: Tuning English and Developing Spanish Resources for TempEval-3. SemEval 2013, Atlanta, GA, USA, June 14, 2013.
  
• Event-centric Information Extraction and Retrieval to Explore Document Collections.
  Guest Lecture: Web Search and Information Retrieval, Mannheim, Germany, May 7, 2013.
  (invited talk, Prof. Dr. Simone Paolo Ponzetto)
  

• Event-centric Document Similarity for Biomedical Literature.
  SMBM 2012, Zurich, Switzerland, September 4, 2012.
  
• Event-centric Information Extraction and Information Retrieval to Explore Document Collections.
  DIMA Colloquium, Berlin, Germany, July 9, 2012.
  (invited talk, Prof. Dr. Volker Markl)
  
• Multilingual and Cross-domain Temporal Tagging with HeidelTime.
  LOEWE Colloquium, Frankfurt, Germany, June 28, 2012.
  (invited talk, Prof. Dr. Alexander Mehler)
  
• Event-centric Search and Exploration in Document Collections.
  JCDL 2012, Washington, D.C., USA, June 12, 2012.
  
• Identification of Top Relevant Temporal Expressions in Documents.
  TempWeb 2012, Lyon, France, April 17, 2012.
  

• WikiWarsDE: A German Corpus of Narratives Annotated with Temporal Expressions.
  GSCL 2011, Hamburg, Germany, September 30, 2011.
  
• An Event-centric Model for Multilingual Document Similarity.
  SIGIR 2011, Beijing, China, July 27, 2011.
  

• [pdf] Annotating Spatio-Temporal Information in Documents.
  Workshop: Name Classification and Grounding in Multilingual Corpora, Zurich, Switzerland, June 8, 2010.
  (invited talk, Prof. Dr. Martin Volk)
  
• Extraction and Exploration of Spatio-Temporal Information in Documents.
  GIR 2010, Zurich, Switzerland, February 19, 2010.
  

• Dependency-based Relation Extraction Using the UIMA-based Text Mining Pipeline UTEMPL.
  GSCL 2009, Potsdam, Germany, October 2, 2009.
  
• Combining Linguistic and Symbolic Clues to Improve Multi-word Term Extraction from Free Text.
  Tekom 2005, Wiesbaden, Germany, November 10, 2005.
  (together with Stefan Geißler and Sebastian Kreß)

• [pdf] All Dates Lead to Rome: Extracting and Explaining Dates in Street Names.
  WWW'17, Perth, Australia, April 3-7, 2017.
  
• [pdf] Mulitlingual Domain-sensitive Temporal Tagging with HeidelTime.
  DGfS'17, Saarbrücken, Germany, March 8-10, 2017.
  

• [pdf] A Baseline Temporal Tagger for All Languages.
  EMNLP'15, Lisbon, Portugal, September 17-21, 2015.
  
• [pdf] An End-to-End Integration of Automatic Annotations into CATMA.
  DHd'15, Graz, Austria, February 23-27, 2015.
  

• [pdf] HeidelTime at EVENTI: Tuning Italian Resources and Addressing TimeML's Empty Tags.
  EVALITA'14, Pisa, Italy, December 11, 2014.
  
• [pdf] Computational Narratology: Extracting Tense Clusters from Narrative Texts.
  LREC'14, Reykjavik, Iceland, May 21-31, 2014.
  
• [pdf] Extending HeidelTime for Temporal Expressions Referring to Historic Dates.
  LREC'14, Reykjavik, Iceland, May 21-31, 2014.
  
• [pdf] Chinese Temporal Tagging with HeidelTime.
  EACL'14, Gothenburg, Sweden, April 16-30, 2014.
  
• [pdf] A Flexible NLP Pipeline for Computational Narratology.
  DHd'14, Passau, Germany, March 25-28, 2014.
  

• [pdf] Annotating Temporal Phenomena in Literary Text in the Context of the heureCLÉA Project.
  Herrenhausen Conference on the Humanities in the Digital Age, 2013, Hannover, Germany, December 5-7, 2013.
  
• [pdf] HeidelTime at TempEval-3: Tuning English and Developing Spanish Resources.
  SemEval'13, Atlanta, GA, USA, June 13-15, 2013.
  
• [pdf] EvenPers: Event-based Person Exploration and Correlation.
  BTW'13, Magdeburg, Germany, March 11-15, 2013.
  

• [pdf] HeidelTime: Temporal Tagging on Different Domains.
  LREC'12, Istanbul, Turkey, May 21-27, 2012.
  
• [pdf] Retro: Time-based Exploration of Product Reviews.
  ECIR'12, Barcelona, Spain, April 1-5, 2012.
  

• [pdf] TimeTrails: A System for Exploring Spatio-Temporal Information in Documents.
  VLDB'10, Singapore, September 13-18, 2010.
  
• [pdf] HeidelTime: High Quality Extraction and Normalization of Temporal Expressions.
  SemEval'10, Uppsala, Sweden, July 15-16, 2010.
  

• [pdf] UTEMPL - The UIMA based Text Mining Pipeline.
  Text Mining Symposium 2008, Bonn, Germany, September 25, 2008.
  

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