12257 search results - page 2068 / 2452 » Analysis of Algorithms |
120
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WWW
2008
ACM
16 years 5 months ago
2008
ACM
We consider the problem of segmenting a webpage into visually and semantically cohesive pieces. Our approach is based on formulating an appropriate optimization problem on weighte...
121
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WWW
2007
ACM
16 years 5 months ago
2007
ACM
We address the problem of measuring global quality metrics of search engines, like corpus size, index freshness, and density of duplicates in the corpus. The recently proposed est...
118
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WWW
2007
ACM
16 years 5 months ago
2007
ACM
In this paper we study the privacy preservation properties of a specific technique for query log anonymization: tokenbased hashing. In this approach, each query is tokenized, and ...
138
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WWW
2007
ACM
16 years 5 months ago
2007
ACM
In this paper, we define the problem of topic-sentiment analysis on Weblogs and propose a novel probabilistic model to capture the mixture of topics and sentiments simultaneously....
161
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WWW
2007
ACM
16 years 5 months ago
2007
ACM
As part of a large effort to acquire large repositories of facts from unstructured text on the Web, a seed-based framework for textual information extraction allows for weakly sup...