A study of retrospective and on-line event detection
Proceedings of the 21st annual international ACM SIGIR conference on Research and development in information retrieval
On-line new event detection and tracking
Proceedings of the 21st annual international ACM SIGIR conference on Research and development in information retrieval
Event tracking based on domain dependency
SIGIR '00 Proceedings of the 23rd annual international ACM SIGIR conference on Research and development in information retrieval
Lexical semantic relatedness and online new event detection (poster session)
SIGIR '00 Proceedings of the 23rd annual international ACM SIGIR conference on Research and development in information retrieval
Temporal summaries of new topics
Proceedings of the 24th annual international ACM SIGIR conference on Research and development in information retrieval
Learning Approaches for Detecting and Tracking News Events
IEEE Intelligent Systems
Introduction to topic detection and tracking
Topic detection and tracking
Probabilistic approaches to topic detection and tracking
Topic detection and tracking
Identifying temporal expression and its syntactic role using FST and lexical data from corpus
COLING '00 Proceedings of the 18th conference on Computational linguistics - Volume 2
Inferring temporal ordering of events in news
NAACL-Short '03 Proceedings of the 2003 Conference of the North American Chapter of the Association for Computational Linguistics on Human Language Technology: companion volume of the Proceedings of HLT-NAACL 2003--short papers - Volume 2
Robust temporal processing of news
ACL '00 Proceedings of the 38th Annual Meeting on Association for Computational Linguistics
Enhancing topic tracking with temporal information
SIGIR '06 Proceedings of the 29th annual international ACM SIGIR conference on Research and development in information retrieval
Use of place information for improved event tracking
Information Processing and Management: an International Journal - Special issue: AIRS2005: Information retrieval research in Asia
Topic tracking with time granularity reasoning
ACM Transactions on Asian Language Information Processing (TALIP)
Data mining of maps and their automatic region-time-theme classification
SIGSPATIAL Special
Quantifying sentiment and influence in blogspaces
Proceedings of the First Workshop on Social Media Analytics
Effective use of place information for event tracking
AIRS'05 Proceedings of the Second Asia conference on Asia Information Retrieval Technology
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Temporal information plays an important role in natural language processing (NLP) applications such as information extraction, discourse analysis, automatic summarization, and question-answering. In the topic detection and tracking (TDT) area, the temporal information often used is the publication date of a message, which is readily available but limited in its usefulness. We developed a relatively simple NLP method for extracting temporal information from Korean news articles, with the goal of improving performance of TDT tasks. To extract temporal information, we make use of finite state automata and a lexicon containing timerevealing vocabulary. Extracted information is converted into a canonicalized representation of a time point or a time duration. We first evaluated and investigated the extraction and canonicalization methods for their accuracy and the extent to which temporal information extracted as such can help TDT tasks. The experimental results show that time information extracted from the text does indeed help to significantly improve both precision and recall.