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At the heart of the Okapi system is a formula referring to some half a dozen variables, which estimate the probability that a given document is relevant to a given query. User interface design for Okapi aims to present its search capabilities as clearly and simply as possible. But between the...
Persistent link: https://www.econbiz.de/10014854625
In a recent edition of this Journal, Bartholdy and Brown (1999) presented ananalysis of the ex-dividend share price behaviour of shares listed on the NewZealand Stock Exchange. The authors conclude that their results are consistentwith the tax clientele effect (driven by long-term investors) and...
Persistent link: https://www.econbiz.de/10009482508
Crops For the Future Research Centre (CFFRC) is currently developing CropBASE—a cross-cutting web-based platform for decision support and knowledge sharing on underutilised crops and their end uses. It provides a quantitative basis to compare underutilised crop productivity and...
Persistent link: https://www.econbiz.de/10011047702
A brief review of the history of laboratory testing of information retrieval systems focuses on the idea of a general‐purpose test collection of documents, queries and relevance judgements. The TREC programme is introduced in this context, and an overview is given of the methods used in TREC....
Persistent link: https://www.econbiz.de/10014854622
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This paper presents a Bayesian nonparametric approach to survival analysis based on arbitrarily right censored data. The first aim will be to show that the "neutral to the right"process is the natural prior to use in this context. Secondly, the properties of a particular neutral to the right...
Persistent link: https://www.econbiz.de/10005740100
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International passenger aviation has increased threefold in the last 25 years and is predicted to continue a similar rapid expansion over the next 25 years. While bringing considerable economic benefits, growth of the aviation sector is also likely to lead to greater adverse social and...
Persistent link: https://www.econbiz.de/10008643201
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