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Author: Santos Rodrygo L T
Publisher: Now Publishers
ISBN: 9781680830002
Category : Computers
Languages : en
Pages : 108
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Book Description
This primer reviews the published literature on search result diversification. In particular, it discusses the motivations for diversifying the search results for an ambiguous query and provides a formal definition of the search result diversification problem. In addition, it describes the most successful approaches in the literature for producing and evaluating diversity in multiple search domains.
Author: Santos Rodrygo L T
Publisher: Now Publishers
ISBN: 9781680830002
Category : Computers
Languages : en
Pages : 108
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Book Description
This primer reviews the published literature on search result diversification. In particular, it discusses the motivations for diversifying the search results for an ambiguous query and provides a formal definition of the search result diversification problem. In addition, it describes the most successful approaches in the literature for producing and evaluating diversity in multiple search domains.
Author: Donna Harman
Publisher: Springer Nature
ISBN: 3031022769
Category : Computers
Languages : en
Pages : 107
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Book Description
Evaluation has always played a major role in information retrieval, with the early pioneers such as Cyril Cleverdon and Gerard Salton laying the foundations for most of the evaluation methodologies in use today. The retrieval community has been extremely fortunate to have such a well-grounded evaluation paradigm during a period when most of the human language technologies were just developing. This lecture has the goal of explaining where these evaluation methodologies came from and how they have continued to adapt to the vastly changed environment in the search engine world today. The lecture starts with a discussion of the early evaluation of information retrieval systems, starting with the Cranfield testing in the early 1960s, continuing with the Lancaster "user" study for MEDLARS, and presenting the various test collection investigations by the SMART project and by groups in Britain. The emphasis in this chapter is on the how and the why of the various methodologies developed. The second chapter covers the more recent "batch" evaluations, examining the methodologies used in the various open evaluation campaigns such as TREC, NTCIR (emphasis on Asian languages), CLEF (emphasis on European languages), INEX (emphasis on semi-structured data), etc. Here again the focus is on the how and why, and in particular on the evolving of the older evaluation methodologies to handle new information access techniques. This includes how the test collection techniques were modified and how the metrics were changed to better reflect operational environments. The final chapters look at evaluation issues in user studies -- the interactive part of information retrieval, including a look at the search log studies mainly done by the commercial search engines. Here the goal is to show, via case studies, how the high-level issues of experimental design affect the final evaluations. Table of Contents: Introduction and Early History / "Batch" Evaluation Since 1992 / Interactive Evaluation / Conclusion
Author: Shin'ichi Satoh
Publisher: Springer
ISBN: 9783030609351
Category : Computers
Languages : en
Pages : 414
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Book Description
This book constitutes the refereed proceedings of the 13th International Conference on Similarity Search and Applications, SISAP 2020, held in Copenhagen, Denmark, in September/October 2020. The conference was held virtually due to the COVID-19 pandemic. The 19 full papers presented together with 12 short and 2 doctoral symposium papers were carefully reviewed and selected from 50 submissions. The papers are organized in topical sections named: scalable similarity search; similarity measures, search, and indexing; high-dimensional data and intrinsic dimensionality; clustering; artificial intelligence and similarity; demo and position papers; and doctoral symposium.
Author: Alex Kulesza
Publisher: Now Pub
ISBN: 9781601986283
Category : Computers
Languages : en
Pages : 178
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Book Description
This monograph provides a comprehensible introduction to DPPs, focusing on the intuitions, algorithms, and extensions that are most relevant to the machine learning community.
Author: Damon A. Williams
Publisher: Taylor & Francis
ISBN: 1000981460
Category : Education
Languages : en
Pages : 297
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Book Description
This volume addresses the role of chief diversity officers as coordinating and integrating diversity leaders in higher education and other sectors.Having established in a companion volume the parameters for an effective diversity strategy, the authors address such questions as: What is a chief diversity officer? How might we create dynamic chief diversity officer infrastructures? What models of CDO structure exist in the academy? What misperceptions often confound the work of officers and the institutions they work within? What key competencies are necessary to lead as a CDO? How does the CDO role compare across higher education, non-profit, and corporate sectors? And how might the role serve as an important contributor to a collaborative vision for change and transformation in the academy?This book begins by delineating the evolution of the chief diversity officer role in the academy. Drawing on extensive qualitative and quantitative research on CDOs conducted for the purposes of this volume, it describes how the scope and responsibilities are variously defined at the organizations where the position has been created, and offers insights into the complexities and challenges of the role.On the basis of this data and the literature on organizational design and change management, the authors define the requisite skills, knowledge and background to be effective, review the alternative organizational and governance structures under which CDOs operate, and in so doing present the Chief Diversity Officer Development Framework as a basis for recruiting candidates, for structuring the position to succeed, and for providing prospective and incumbent CDOs with a realistic sense of the scope of the role.This title is also available in a set with its companion volume, Strategic Diversity Leadership.
Author: Francois-Serge Lhabitant
Publisher: Elsevier
ISBN: 0081017863
Category : Mathematics
Languages : en
Pages : 276
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Book Description
Portfolio Diversification provides an update on the practice of combining several risky investments in a portfolio with the goal of reducing the portfolio's overall risk. In this book, readers will find a comprehensive introduction and analysis of various dimensions of portfolio diversification (assets, maturities, industries, countries, etc.), along with time diversification strategies (long term vs. short term diversification) and diversification using other risk measures than variance. Several tools to quantify and implement optimal diversification are discussed and illustrated. - Focuses on portfolio diversification across all its dimensions - Includes recent empirical material that was created and developed specifically for this book - Provides several tools to quantify and implement optimal diversification
Author: Dirk Lewandowski
Publisher: Emerald Group Publishing
ISBN: 1780526377
Category : Language Arts & Disciplines
Languages : en
Pages : 337
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Book Description
Provides an understanding of Web search engines from the unique perspective of Library and Information Science. This book explores a range of topics including retrieval effectiveness, user satisfaction, the evaluation of search interfaces, the impact of search on society, and the influence of search engine optimization (SEO) on results quality.
Author: Fei Cai
Publisher:
ISBN: 9781680832006
Category : Computers
Languages : en
Pages : 108
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Book Description
In information retrieval, query auto completion (QAC), also known as type-ahead and auto-complete suggestion, helps users to formulate their query when they have an intent in mind but not a clear way of expressing this in a query. This monograph surveys this research.
Author: Morris Swadesh
Publisher: Routledge
ISBN: 1351478028
Category : Language Arts & Disciplines
Languages : en
Pages : 405
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Book Description
Morris Swadesh, one of this century's foremost scientific investigators of language, dedicated much of his life to the study of the origin and evolution of language. This volume, left nearly completed at his death and edited posthumously by Joel F. Sherzer, is his last major study of this difficult subject.Swadesh discusses the simple qualities of human speech also present in animal language, and establishes distinctively human techniques of expression by comparing the common features that are found in modern and ancient languages. He treats the diversification of language not only by isolating root words in different languages, but also by dealing with sound systems, with forms of composition, and with sentence structure. In so doing, he demonstrates the evidence for the expansion of all language from a single central area. Swadesh supports his hypothesis by ""exhibits"" that conveniently present the evidence in tabular form. Further clarity is provided by the use of a suggestive practical phonetic system, intelligible to the student as well as to the professional.The book also contains an Appendix, in which the distinguished ethnographer of language, Dell Hymes, gives a valuable account of the prewar linguistic tradition within which Swadesh did some of his most important work.
Author: Yates
Publisher: Pearson Education India
ISBN: 9788131709771
Category :
Languages : en
Pages : 540
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Book Description
