منابع مشابه
Okapi+QuEst: Translation Quality Estimation within Okapi
Due to the ever growing applicability of machine translation, estimating the quality of translations automatically has become a necessary task in various scenarios, for example, when deciding whether a machine translation is good enough for human post-editing. This demonstration presents the outcome of a collaborative project between the University of Sheffield and ENLASO, funded by EAMT, the E...
متن کاملOkapi at TREC-2
This paper reports on City University's work on the TREC{2 project from its commencement up to November 1993. It includes many results which were obtained after the August 1993 deadline for submission of o cial results. For TREC{2, as for TREC{1, City University used versions of the Okapi text retrieval system much as described in [2] (see also [3, 4]). Okapi is a simple and robust set-oriented...
متن کاملOkapi at TREC-4
The BSS, which has been used in all City's TREC experiments, is a set-oriented ranked output system designed primarily for probabilistic{type retrieval of textual material using inverted indexes. There is a family of built-in weighting functions as described in [1, Section 3]. In addition to weighting and ranking facilities it has the usual boolean and quasi-boolean (positional) operations. The...
متن کاملOkapi-based XML indexing
Purpose – Being an important data exchange and information storage standard, XML has generated a great deal of interest and particular attention has been paid to the issue of XML indexing. Clear use cases for structured search in XML have been established. However, most of the research in the area is either based on relational database systems or specialized semi-structured data management syst...
متن کاملOkapi at TREC-3
During the course of TREC{1 the low-level search functions were split o into a separate Basic Search System (BSS) [2], but retrieval and ranking of documents was still done using the \classical" probabilistic model of Robertson and Sparck Jones[7] with no account taken of document length or term frequency within document or query. Four runs were submitted to NIST for evaluation: automatic ad ho...
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ژورنال
عنوان ژورنال: Science
سال: 1911
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.33.837.65-a