| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2009: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Research Abstract |
For a given sentence in which coordination conjunctions such as and or "or" occur, detecting the scope of word sequences that the coordination conjunctions join together, as well as distinguishing the grammatical category of it, are deemed fundamental in natural language processing. However, even the state-of-the-art parsers can identify only around fifty percent of such coordination scopes and their grammatical category. To cope with the problem, we developed a methodology that employs a CKY algorithm based on the grammar we customize for coordination as well as a tunable similarity measures we define via sequence alignment and averaged perceptron, which improves performance very well.
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