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| Content Provider | ACM Digital Library |
|---|---|
| Author | Tu, Xinhui Liu, Maofu Li, Bo He, Tingting Luo, Jing |
| Abstract | A main challenge in applying translation language models to information retrieval is how to estimate the 'true' probability that a query could be generated as a translation of a document. The state-of-art methods rely on document-based word co-occurrences to estimate word-word translation probabilities. However, these methods do not take into account the proximity of co-occurrences. Intuitively, the proximity of co-occurrences can be exploited to estimate more accurate translation probabilities, since two words occur closer are more likely to be related. In this paper, we study how to explicitly incorporate proximity information into the existing translation language model, and propose a proximity-based translation language model, called TM-P, with three variants. In our TM-P models, a new concept (proximity-based word co-occurrence frequency) is introduced to model the proximity of word co-occurrences, which is then used to estimate translation probabilities. Experimental results on standard TREC collections show that our TM-P models achieve significant improvements over the state-of-the-art translation models. |
| Starting Page | 1237 |
| Ending Page | 1240 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781450322638 |
| DOI | 10.1145/2505515.2507864 |
| Language | English |
| Publisher | Association for Computing Machinery (ACM) |
| Publisher Date | 2013-10-27 |
| Publisher Place | New York |
| Access Restriction | Subscribed |
| Subject Keyword | Proximity information Information retrieval Translation language models |
| Content Type | Text |
| Resource Type | Article |
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