November 17, 200 0 TDT-2000 Workshop Topic Tracking at Maryland: Lessons from the Johns Hopkins Mandarin-English Information (MEI) Project Gina-Anne Levow and Douglas W.Oard Institute for Advanced Computer Studies University of Maryland, College Park
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Gina-Anne Levow and Douglas W.Oard Institute for Advanced Computer Studies
Topic Tracking at Maryland: Lessons from the Johns Hopkins Mandarin-English Information (MEI) Project. Gina-Anne Levow and Douglas W.Oard Institute for Advanced Computer Studies University of Maryland, College Park. Roadmap. MEI Overview (6 weeks in 5 minutes) MEI Results - PowerPoint PPT Presentation
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November 17, 2000 TDT-2000 Workshop
Topic Tracking at Maryland:Lessons from the Johns Hopkins
Mandarin-English Information (MEI) Project
Gina-Anne Levow and Douglas W.OardInstitute for Advanced Computer Studies
University of Maryland, College Park
Roadmap
• MEI Overview (6 weeks in 5 minutes)
• MEI Results
• Adapting MEI to TDT
• TDT Results
• Conclusions
The MEI Team• Senior Members
• Students
Helen Meng Chinese University of Hong KongErika Grams Advanced Analytic ToolsSanjeev Khudanpur Johns Hopkins UniversityGina-Anne Levow University of MarylandDouglas Oard University of MarylandPatrick Schone US Department of DefenseHsin-Min Wang Academia Sinica, Taiwan
Berlin Chen National Taiwan UniversityWai-Kit Lo Chinese University of Hong KongKaren Tang Princeton UniversityJianqiang Wang University of Maryland
MEI: The Challenges
• Speech Recognition– Tokenization– Lexicon coverage– Selection among alternatives
• Translation– Tokenization– Lexicon coverage– Selection among alternatives
Dif
fere
nt P
robl
ems
Term Granularity Options
MandarinWords
MandarinSyllables
MandarinCharacters
EnglishWords
EnglishPhrases
MEI Evaluation Collections
2265manually
segmentedstories
3371manually segmented
stories
DevelopmentCollection: TDT-2
EvaluationCollection: TDT-3
Mar 98
Oct 98 Dec 98
17 topics,variable number
of exemplars
Jun 98Jan 98
English texttopic exemplars:Associated PressNew York Times