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- W2748558075 abstract "We introduce a generalised multivariate Polya process for document language modelling. The framework outlined here generalises a number of statistical language models used in information retrieval for modelling document generation. In particular, we show that the choice of replacement matrix M ultimately defines the type of random process and therefore defines a particular type of document language model. We show that a particular variant of the general model is useful for modelling term-specific burstiness. Furthermore, via experimentation we show that this variant significantly improves retrieval effectiveness over a strong baseline on a number of small test collections." @default.
- W2748558075 created "2017-08-31" @default.
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- W2748558075 date "2017-08-20" @default.
- W2748558075 modified "2023-09-27" @default.
- W2748558075 title "Modelling Word Burstiness in Natural Language: A Generalised Polya Process for Document Language Models in Information Retrieval" @default.
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