Shuichiro Imai

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In this paper we discuss our results from the 2006 NTCIR-6 CLQA task, subtasks 2a and 2b. We describe our language independent, data-driven approach to Japanese language question answering and our new document retrieval and answer projection method which resulted in a small performance gain in comparison to earlier approaches. Using this method, we achieve(More)
Despite being a central issue in evolutionary biology, few studies have examined the stasis of characters in populations with no gene flow. A possible mechanism of such stasis is stabilizing selection with similar peaks in each population. This study examined the evolutionary patterns of morphological characters with and without strong selection in ant(More)
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