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Hits 1 – 2 of 2
1
An experimental study of online chatting and notetaking techniques on college students’ cognitive learning from a lecture
Wei, Fang-Yi Flora
;
Wang, Y. Ken
;
Fass, Warren
In:
Computers in human behavior. - Amsterdam [u.a.] : Elsevier
34 (2014), 148-156
OLC Linguistik
Show details
2
Entity Retrieval by Hierarchical Relevance Model, Exploiting the Structure of Tables and Learning Homepage Classifiers
Fang, Yi
;
Si, Luo
;
Yu, Zhengtao
;
Xian, Yantuan
;
Xu, Yangbo
In: DTIC (2009)
Abstract:
This paper gives an overview of our work done for the TREC 2009 Entity track. We propose a hierarchical relevance retrieval model for entity ranking. In this model, three levels of relevance are examined which are document, passage and entity, respectively. The final ranking score is a linear combination of the relevance scores from the three levels. Furthermore, we exploit the structure of tables and lists to identify the target entities from them by making a joint decision on all the entities with the same attribute. To find entity homepages, we train logistic regression models for each type of entities. A set of templates and filtering rules are also used to identify target entities. The key lessons that we learned by participating this year's Entity track include: 1) our special treatment of table and list data is well rewarding; 2) The high accuracy of homepage finding is crucial in this track; 3) Wikipedia can serve as a valuable knowledge resource for different aspects of the related entity finding task. ; Presented at the Text REtrieval Conference (TREC 2009, 18th) held in Gaithersburg, Maryland on 17-20 November 2009. Published in the Proceedings of the Text REtrieval Conference (TREC 2009, 18th), 2009. The conference was co-sponsored by the National Institute of Standards and Technology (NIST), the Defense Advanced Research Projects Agency (DARPA), and the Advanced Research and Development Activity (ARDA).
Keyword:
*HOMEPAGES(INTERNET)
;
*INFORMATION RETRIEVAL
;
*INFORMATION SCIENCES
;
*INTERNET
;
*RELEVANCE(INFORMATION RETRIEVAL)
;
*WEB(INTERNET)
;
ACCURACY
;
CLASSIFICATION
;
Computer Programming and Software
;
DECISION MAKING
;
DOCUMENT RETRIEVAL
;
ENTITY EXTRACTION
;
ENTITY RANKING
;
ENTITY TRACK
;
Equipment and Methods
;
FILTERS
;
HIERARCHIES
;
HIGH RATE
;
Information Science
;
INTERNET BROWSERS
;
LEARNING
;
Linguistics
;
MODELS
;
RANKING
;
REGRESSION ANALYSIS
;
REPRINTS
;
SOCIAL COMMUNICATION
;
SYMPOSIA
;
TABLES(DATA)
;
TEMPLATES
;
Test Facilities
;
WIKIPEDIA(INTERNET)
URL:
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA517741
http://www.dtic.mil/docs/citations/ADA517741
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