NDLI: Adaptation of the concept hierarchy model with search logs for query recommendation on intranets

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Salton award lecture: information retrieval as engineering science

Adaptation of the concept hierarchy model with search logs for query recommendation on intranets

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Adaptation of the concept hierarchy model with search logs for query recommendation on intranets

Content Provider	ACM Digital Library
Author	Albakour, M-Dyaa Fasli, Maria Adeyanju, Ibrahim Adepoju Kruschwitz, Udo Song, Dawei De Roeck, Anne
Abstract	A concept hierarchy created from a document collection can be used for query recommendation on Intranets by ranking terms according to the strength of their links to the query within the hierarchy. A major limitation is that this model produces the same recommendations for identical queries and rebuilding it from scratch periodically can be extremely inefficient due to the high computational costs. We propose to adapt the model by incorporating query refinements from search logs. Our intuition is that the concept hierarchy built from the collection and the search logs provide complementary conceptual views on the same search domain, and their integration should continually improve the effectiveness of recommended terms. Two adaptation approaches using query logs with and without click information are compared. We evaluate the concept hierarchy models (static and adapted versions) built from the Intranet collections of two academic institutions and compare them with a state-of-the-art log-based query recommender, the Query Flow Graph, built from the same logs. Our adaptive model significantly outperforms its static version and the query flow graph when tested over a period of time on data (documents and search logs) from two institutions' Intranets.
Starting Page	5
Ending Page	14
Page Count	10
File Format	PDF
ISBN	9781450314725
DOI	10.1145/2348283.2348288
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2012-08-12
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Concept hierarchy Query suggestions Log analysis
Content Type	Text
Resource Type	Article

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