7581 search results - page 1139 / 1517 » Incompleteness in Data Mining |
179
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WSDM
2010
ACM
16 years 4 months ago
2010
ACM
While test collection construction is a time-consuming and expensive process, the true cost is amortized by reusing the collection over hundreds or thousands of experiments. Some ...
186
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WSDM
2010
ACM
16 years 4 months ago
2010
ACM
Query reformulation techniques based on query logs have been studied as a method of capturing user intent and improving retrieval effectiveness. The evaluation of these techniques...
155
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WSDM
2010
ACM
16 years 4 months ago
2010
ACM
In web search, recency ranking refers to ranking documents by relevance which takes freshness into account. In this paper, we propose a retrieval system which automatically detect...
150
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WSDM
2010
ACM
16 years 4 months ago
2010
ACM
Many web documents are dynamic, with content changing in varying amounts at varying frequencies. However, current document search algorithms have a static view of the document con...
155
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WSDM
2010
ACM
16 years 4 months ago
2010
ACM
We describe a machine learning approach for predicting sponsored search ad relevance. Our baseline model incorporates basic features of text overlap and we then extend the model t...