Information Retrieval Models: Foundations and Relationships (Synthesis Lectures on Information Concepts, Retrieval, and Services, 27)
Language: English
Published by Morgan & Claypool Publishers, 2013
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- Title
- Information Retrieval Models: Foundations and Relationships (Synthesis Lectures on Information Concepts, Retrieval, and Services, 27)
- Author
- Roelleke, Thomas
- Publisher
- Morgan & Claypool Publishers
- Publication year
- 2013
- Condition
- Very Good
- Dust jacket
- Dust Jacket Included
- Book Type
- book
- Binding
- paperback
- Language
- English
- ISBN 10
- 1627050787
- ISBN 13
- 9781627050784
Information Retrieval (IR) models are a core component of IR research and IR systems. The past decade brought a consolidation of the family of IR models, which by 2000 consisted of relatively isolated views on TF-IDF (Term-Frequency times Inverse-Document-Frequency) as the weighting scheme in the vector-space model (VSM), the probabilistic relevance framework (PRF), the binary independence retrieval (BIR) model, BM25 (Best-Match Version 25, the main instantiation of the PRF/BIR), and language modelling (LM). Also, the early 2000s saw the arrival of divergence from randomness (DFR).
Regarding intuition and simplicity, though LM is clear from a probabilistic point of view, several people stated: "It is easy to understand TF-IDF and BM25. For LM, however, we understand the math, but we do not fully understand why it works."
This book takes a horizontal approach gathering the foundations of TF-IDF, PRF, BIR, Poisson, BM25, LM, probabilistic inference networks (PIN's), and divergence-based models. The aim is to create a consolidated and balanced view on the main models.
A particular focus of this book is on the "relationships between models." This includes an overview over the main frameworks (PRF, logical IR, VSM, generalized VSM) and a pairing of TF-IDF with other models. It becomes evident that TF-IDF and LM measure the same, namely the dependence (overlap) between document and query. The Poisson probability helps to establish probabilistic, non-heuristic roots for TF-IDF, and the Poisson parameter, average term frequency, is a binding link between several retrieval models and model parameters.
Table of Contents: List of Figures / Preface / Acknowledgments / Introduction / Foundations of IR Models / Relationships Between IR Models / Summary & Research Outlook / Bibliography / Author's Biography / Index
"Synopsis" may belong to another edition of this title.
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