A Feature-Centric View of Information Retrieval

  • Donald Metzler

Part of the The Information Retrieval Series book series (INRE, volume 27)

Table of contents

  1. Front Matter
    Pages I-XI
  2. Donald Metzler
    Pages 1-6
  3. Donald Metzler
    Pages 7-22
  4. Donald Metzler
    Pages 23-78
  5. Donald Metzler
    Pages 79-106
  6. Donald Metzler
    Pages 107-120
  7. Donald Metzler
    Pages 121-148
  8. Back Matter
    Pages 149-166

About this book


Commercial Web search engines such as Google, Yahoo, and Bing are used every day by millions of people across the globe. With their ever-growing refinement and usage, it has become increasingly difficult for academic researchers to keep up with the collection sizes and other critical research issues related to Web search, which has created a divide between the information retrieval research being done within academia and industry.  Such large collections pose a new set of challenges for information retrieval researchers.

In this work, Metzler describes highly effective information retrieval models for both smaller, classical data sets, and larger Web collections. In a shift away from heuristic, hand-tuned ranking functions and complex probabilistic models, he presents feature-based retrieval models. The Markov random field model he details goes beyond the traditional yet ill-suited bag of words assumption in two ways. First, the model can easily exploit various types of dependencies that exist between query terms, eliminating the term independence assumption that often accompanies bag of words models. Second, arbitrary textual or non-textual features can be used within the model. As he shows, combining term dependencies and arbitrary features results in a very robust, powerful retrieval model. In addition, he describes several extensions, such as an automatic feature selection algorithm and a query expansion framework. The resulting model and extensions provide a flexible framework for highly effective retrieval across a wide range of tasks and data sets.

A Feature-Centric View of Information Retrieval provides graduate students, as well as academic and industrial researchers in the fields of information retrieval and Web search with a modern perspective on information retrieval modeling and Web searches.


Markov models Web queries information retrieval learning to rank model mearing search engines “Bag of Words” models

Authors and affiliations

  • Donald Metzler
    • 1
  1. 1.Information Sciences InstituteUniversity of Southern CaliforniaMarina del ReyUSA

Bibliographic information

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