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Li et al., 2004 - Google Patents

National University of Singapore at the TREC-13 question answering main task

Li et al., 2004

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Document ID
14927690533008448399
Author
Li H
Sun R
Kan T
Publication year

External Links

Snippet

Our participation at TREC in the past two years (Yang et al., 2002, 2003) has focused on incorporating external knowledge to boost document and passage retrieval performance in event-based open domain question answering (QA). Despite our previous successes, we …
Continue reading at citeseerx.ist.psu.edu (PDF) (other versions)

Classifications

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    • G06F—ELECTRICAL DIGITAL DATA PROCESSING
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    • G06F17/30—Information retrieval; Database structures therefor; File system structures therefor
    • G06F17/3061—Information retrieval; Database structures therefor; File system structures therefor of unstructured textual data
    • G06F17/30634—Querying
    • G06F17/30657—Query processing
    • G06F17/30675—Query execution
    • G06F17/30684—Query execution using natural language analysis
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING; COUNTING
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    • G06F17/3061—Information retrieval; Database structures therefor; File system structures therefor of unstructured textual data
    • G06F17/30634—Querying
    • G06F17/30657—Query processing
    • G06F17/3066—Query translation
    • G06F17/30669—Translation of the query language, e.g. Chinese to English
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING; COUNTING
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    • G06F17/30613—Indexing
    • G06F17/30619—Indexing indexing structures
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING; COUNTING
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    • G06F17/30637—Query formulation
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    • G06F17/271—Syntactic parsing, e.g. based on context-free grammar [CFG], unification grammars
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    • G06—COMPUTING; CALCULATING; COUNTING
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    • G—PHYSICS
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    • G06F17/30705—Clustering or classification
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
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