Titlebook: Evaluating Information Retrieval and Access Tasks; NTCIR‘s Legacy of Re Tetsuya Sakai,Douglas W. Oard,Noriko Kando Book‘‘‘‘‘‘‘‘ 2021 The Ed

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https://doi.org/10.1007/978-94-017-7294-5Looking back over the storied history of NTCIR that is recounted in this volume, we can see many impactful contributions. As we look at the future, we might then ask what points of continuity and change we might reasonably anticipate. Beginning that discussion is the focus of this chapter.

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Temporal Information Access,This chapter introduces the research background and details of temporal information access tasks in the NTCIR. The GeoTime task was the first attempt to evaluate temporal information retrieval as an extension of an information-retrieval-for-question-answering task. Temporalia was a task to investigate the role of temporal factors in a search.

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The Information Retrieval Serieshttp://image.papertrans.cn/e/image/317222.jpg

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Kiyoshi Abe,William Gunther,Harold Seeections from 1998 already featured . and . documents. In this chapter, I provide a survey on the use of graded relevance assessments and of graded relevance measures in the past NTCIR tasks which primarily tackled ranked retrieval. My survey shows that the majority of the past tasks fully utilised g