نتایج جستجو برای: okapi
تعداد نتایج: 548 فیلتر نتایج به سال:
This paper presents work on document retrieval based on participation in the Cross-Language Evaluation Forum (CLEF) 2001 task of non-English monolingual retrieval task using French only. In summary, the experiment findings indicate that Okapi, the text retrieval system in use, can successfully be used for non-English text retrieval although a lot of internal pre-processing is required in the ba...
The origins of giraffe's imposing stature and associated cardiovascular adaptations are unknown. Okapi, which lacks these unique features, is giraffe's closest relative and provides a useful comparison, to identify genetic variation underlying giraffe's long neck and cardiovascular system. The genomes of giraffe and okapi were sequenced, and through comparative analyses genes and pathways were ...
As the anatomy of the digestive tract of the okapi (Okapia johnstoni) has not been described in relation to the ruminant feeding type classification to date, we here report anatomical measurements on a complete digestive tract of an okapi euthanised in captivity and measurements of its ingesta particle size and forestomach protozoa species, supplemented with other information on two okapi fores...
Giraffidae are represented by many extinct species. The only two extant taxa possess diametrically contrasting cervical morphology, as the okapi is short-necked and the giraffe is exceptionally long-necked. Samotherium major, known from the Late Miocene of Samos in Greece and other Eurasian localities, is a key extinct giraffid; it possesses cervical vertebrae that are intermediate in the evolu...
Three ad hoc runs were submitted: long (title, description and narrative), medium (title and description) and short (title only). \Blind" expansion was used for all runs. The queries from the medium ad hoc run were reused for the small web track submission. Most of the negative expressions were removed from the narrative eld of the topic statements, and a new expansion term selection procedure ...
A full description of the experimental system and conditions is given in Appendices A and B. Searchers lled in three types of questionnaires. The pre-session questionnaire established the user's experience and pro le. In the post search questionnaires, searchers were asked questions regarding the topic, the search and the system used after undertaking each individual search. Finally in the post...
Toshiba participated in NTCIR-4 QAC2 Subtask 1: this is our first QAC participation. Using our newly developed Japanese QA system called ASKMi, we submitted two runs, one using Okapi/BM25 for document retrieval (TSB-A) and the other using Boolean AND constraints before applying Okapi/BM25 (TSB-B). We achieved the 5th best performance among the 17 participants (8th and 9th among the 25 submitted...
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