System and method for measuring the quality of document sets

G - Physics – 06 – F

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G06F 17/18 (2006.01) G06F 17/30 (2006.01)

Patent

CA 2690947

Systems and methods are described that calculate the interestingness of a set of one or more records in a database, either absolutely (i.e., compared to an overall collection of records) or relative to some other set of records. In one embodiment, the measure is a relative entropy value that has been normalized. Various applications of the measure are described in the context of an information retrieval system. These applications include, for example, guiding query interpretation, guiding view selection and summarization, intelligent ranges, event detection, concept triggers and interpreting user actions, hierarchy discovery, and adaptive data mining.

L'invention concerne des systèmes et des procédés qui calculent l'intérêt d'un ensemble d'un ou plusieurs enregistrements dans une base de données, de manière absolue (c'est-à-dire par comparaison à une collecte globale d'enregistrements) ou par rapport à un autre ensemble d'enregistrements. Selon un mode de réalisation, la mesure est une valeur d'entropie relative qui a été normalisée. Diverses applications de la mesure sont décrites dans le contexte d'un système de récupération d'informations. Ces applications comprennent, par exemple, le guidage d'une interprétation de requête, le guidage d'une sélection et d'un résumé de vue, des plages intelligentes, une détection d'événement, des déclenchements de concept et une interprétation d'actions d'utilisateur, une découverte de hiérarchie et une exploration adaptative de données.

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