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    NAACL
    2003
    173views Computational Linguistics» more  NAACL 2003»
    Automatic Derivation of Surface Text Patterns for a Maximum Entropy Based Question Answering System
    14 years 11 months ago
    Automatic Derivation of Surface Text Patterns for a Maximum Entropy Based Question Answering System
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    In this paper we investigate the use of surface text patterns for a Maximum Entropy based Question Answering (QA) system. These text patterns are collected automatically in an uns...
    Deepak Ravichandran, Abraham Ittycheriah, Salim Ro...
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    EMNLP
    2007
    144views Natural Language Processing» more  EMNLP 2007»
    Using Semantic Roles to Improve Question Answering
    14 years 11 months ago
    Using Semantic Roles to Improve Question Answering
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    Shallow semantic parsing, the automatic identification and labeling of sentential constituents, has recently received much attention. Our work examines whether semantic role info...
    Dan Shen, Mirella Lapata
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    ACL
    2006
    130views Computational Linguistics» more  ACL 2006»
    N Semantic Classes are Harder than Two
    14 years 11 months ago
    N Semantic Classes are Harder than Two
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    We show that we can automatically classify semantically related phrases into 10 classes. Classification robustness is improved by training with multiple sources of evidence, inclu...
    Ben Carterette, Rosie Jones, Wiley Greiner, Cory B...
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    ACL
    2006
    131views Computational Linguistics» more  ACL 2006»
    Question Answering with Lexical Chains Propagating Verb Arguments
    14 years 11 months ago
    Question Answering with Lexical Chains Propagating Verb Arguments
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    This paper describes an algorithm for propagating verb arguments along lexical chains consisting of WordNet relations. The algorithm creates verb argument structures using VerbNet...
    Adrian Novischi, Dan I. Moldovan
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    NAACL
    2004
    136views Computational Linguistics» more  NAACL 2004»
    Comparison of two interactive search refinement techniques
    14 years 11 months ago
    Comparison of two interactive search refinement techniques
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    The paper presents two approaches to interactively refining user search formulations and their evaluation in the new High Accuracy Retrieval from Documents (HARD) track of TREC-12...
    Olga Vechtomova, Murat Karamuftuoglu
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