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175
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WWW
2009
ACM
16 years 7 months ago
2009
ACM
In a traditional keyword-search system in XML data, a user composes a keyword query, submits it to the system, and retrieves relevant subtrees. In the case where the user has limi...
169
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WWW
2009
ACM
16 years 1 months ago
2009
ACM
Searching posts effectively has become an important issue in large-scale online communities. Especially, if search users have different inclinations when they search posts, they h...
177
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WWW
2009
ACM
16 years 7 months ago
2009
ACM
In Web-based services of dynamic content (such as news articles), recommender systems face the difficulty of timely identifying new items of high-quality and providing recommendat...
161
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WWW
2009
ACM
16 years 7 months ago
2009
ACM
Social bookmarking has emerged as a growing source of human generated content on the web. In essence, bookmarking involves URLs and tags on them. In this paper, we perform a large...
159
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WWW
2009
ACM
16 years 7 months ago
2009
ACM
In order to return relevant search results, a search engine must keep its local repository synchronized to the Web, but it is usually impossible to attain perfect freshness. Hence...