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Novel way of looking at the problem of text retrieval based on probabilistic language modeling
Conceptually simple and explanatory
Formal mathematical model
Natural use of collection statistics, not heuristics (almost…)
LMs provide effective retrieval and can be improved to the extent that the following conditions can be met
Our language models are accurate representations of the data.
Users have some sense of term distribution.*
*Or we get more sophisticated with translation model
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