This is a rigorous and complete textbook for a first course on information retrieval from the computer science perspective. It provides an up-to-date student oriented treatment of information retrieval including extensive coverage of new topics such as web retrieval, web crawling, open source search engines and user interfaces.

From parsing to indexing, clustering to classification, retrieval to ranking, and user feedback to retrieval evaluation, all of the most important concepts are carefully introduced and exemplified. The contents and structure of the book have been carefully designed by the two main authors, with individual contributions coming from leading international authorities in the field, including Yoelle Maarek, Senior Director of Yahoo Research Israel; Dulce Ponceleon IBM Research; and Malcolm Slaney, Yahoo Research USA.

This completely reorganized, revised and enlarged second edition of "Modern Information Retrieval" contains many new chapters and double the number of pages and bibliographic references of the first edition, and a companion website www.mir2ed.org with teaching material. It will prove invaluable to students, professors, researchers, practitioners, and scholars of this fascinating field of information retrieval.

This book constitutes the thoroughly refereed post-conference proceedings of the Third International Conference on Advances in Data Science, ICIIT 2018, held in Chennai, India, in December 2018. The 11 full papers along with 4 short papers presented were carefully reviewed and selected from 74 submissions.The papers are organized in topical sections on data science foundations, data management and processing technologies, data analytics and its applications.

Applied probability is a broad research area that is of interest to scientists in diverse disciplines in science and technology, including: anthropology, biology, communication theory, economics, epidemiology, finance, geography, linguistics, medicine, meteorology, operations research, psychology, quality control, sociology, and statistics. Recent Advances in Applied Probability is a collection of survey articles that bring together the work of leading researchers in applied probability to present current research advances in this important area. This volume will be of interest to graduate students and researchers whose research is closely connected to probability modelling and their applications. It is suitable for one semester graduate level research seminar in applied probability.

Ever since its inception, the Web has changed the landscape of human experiences on how we interact with one another and data through service infrastructures via various computing devices. This interweaving environment is now becoming ever more embedded into devices and systems that integrate seamlessly on how we live, both in our working or leisure time. For this volume, King and Baeza-Yates selected some pioneering and cutting-edge research work that is pointing to the future of the Web. Based on the Workshop Track of the 17th International World Wide Web Conference (WWW2008) in Beijing, they selected the top contributions and asked the authors to resubmit their work with a minimum of one third of additional material from their original workshop manuscripts to be considered for this volume. After a second-round of reviews and selection, 16 contributions were finally accepted. The work within this volume represents the tip of an iceberg of the many exciting advancements on the WWW. It covers topics like semantic web services, location-based and mobile applications, personalized and context-dependent user interfaces, social networks, and folksonomies. The presentations aim at researchers in academia and industry by showcasing latest research findings. Overall they deliver an excellent picture of the current state-of-the-art, and will also serve as the basis for ongoing research discussions and point to new directions.

Information retrieval is the science concerned with the effective and efficient retrieval of documents starting from their semantic content. It is employed to fulfill some information need from a large number of digital documents. Given the ever-growing amount of documents available and the heterogeneous data structures used for storage, information retrieval has recently faced and tackled novel applications.

In this book, Melucci and Baeza-Yates present a wide-spectrum illustration of recent research results in advanced areas related to information retrieval. Readers will find chapters on e.g. aggregated search, digital advertising, digital libraries, discovery of spam and opinions, information retrieval in context, multimedia resource discovery, quantum mechanics applied to information retrieval, scalability challenges in web search engines, and interactive information retrieval evaluation. All chapters are written by well-known researchers, are completely self-contained and comprehensive, and are complemented by an integrated bibliography and subject index.

With this selection, the editors provide the most up-to-date survey of topics usually not addressed in depth in traditional (text)books on information retrieval. The presentation is intended for a wide audience of people interested in information retrieval: undergraduate and graduate students, post-doctoral researchers, lecturers, and industrial researchers.

Foundations of Information Technology in the Era of Network and Mobile Computing is presented in two distinct but interrelated tracks: -Algorithms, Complexity and Models of Computation; -Logic, Semantics, Specification and Verification. This volume contains 45 original and significant contributions addressing these foundational questions, as well as 4 papers by outstanding invited speakers. These papers were presented at the 2nd IFIP International Conference on Theoretical Computer Science (TCS 2002), which was held in conjunction with the 17th World Computer Congress, sponsored by the International Federation for Information Processing (IFIP), and which convened in Montreal, Quebec, Canada in August 2002.

The articles in this proceedings were presented at the 13th International Conference of the Chilean Computer Science Society held in La Serena, Chile on October 14-16, 1993. A record number of 90 submissions were received this year in response to the call for papers. They came from 19 countries in four continents. The 44 articles presented here were selected by the program committee whose members were Ricardo Baeza-Yates (Chair, Univ. de Chile) Leopoldo Bertossi (U niv. Catolica de Chile) Jorge Boria (Schlumberger, USA & UNICEN, Argentina) Edgardo Broner (Univ. Simon Bolivar, Venezuela) Pere Brunet (Polytechnic of Catalunya, Spain) Jose Blakeley (Texas Instruments, USA) Eduardo Krell (Fundacion Chile) Tomas Lang (Univ. of California at Irvine, USA) Rosana Lanzelotte (PUC-Rio, Brazil) Stefano Levialdi (Univ. di Roma, Italy) Jorge Lobo (Univ. of Illinois at Chicago, USA) Jose Palazzo (UFRGS, Brazil) Christian Queinnec (Poly technique & INRIA, France) Gregory Rawlins (Indiana University, USA) Carlos Scheel (Tecnologico de Monterrey, Mexico) Robbert Van Renesse (Cornell Univ. , USA) The criteria for selection was based primarily on quality; we also considered relevance, clarity and the potential benefit to the community. The contents of these proceedings are organized on six main areas (number of papers in parentheses) : Algorithms and Data Structures (10); Databases and Information Systems (6); Distributed Systems and Computer Architecture (6); Logic and Knowledge (8); Petri Nets (4); and Software Engineering and Programming Languages (10). They also include one invited paper.

The articles in this collection were presented at the 11th International Conference of the Chilean Computer Science Society held in Satiago, Chile on October 15 - 18, 1991. A record number of 85 submissions were received this year in response to the call for papers. They came from 19 countries in four continents. The articles presented here were selected by the program committee whose members were Jose Balcazar (Polytechnic University of Catalunya) Francois Bancilhon (ALTAIR/INRIA) Marcos R. S. Borges (Universidade Federal do Rio de Janeiro) Ignacio Casas (Universidad Cat6lica de Chile) J. L. Encarna ao (Zentrum fuer Grafische Datenverarbeitung) Hector Garcia-Molina (Princeton University) Michael Langston (University of Tennessee) Raphael Finkel (University of Kentucky) Tom Maibaum (Imperial College) Udi Manber, Chairman (University of Arizona) Michael Robson (Australian National University) The criteria for selection was based primarily on quality; we also considered relevance, clarity and the potential benefit to the community. In a time of great specialization, it is refreshing to see a conference devoted not to particular narrow fields but to all areas of computer science. Included are papers in algorithms, artificial intelligence, computer architecture, computer networks, databases, data structures, distributed systems, graphics and user interface, object-oriented systems, operating systems, programming languages, and the theory of computing. It was a pleasure reading high-quality papers in so many different areas of computer science.

This book constitutes the proceedings of the 34th European Conference on IR Research, ECIR 2012, held in Barcelona, Spain, in April 2012. The 37 full papers, 28 poster papers and 7 demonstrations presented in this volume were carefully reviewed and selected from 167 submissions. The contributions are organized in sections named: query representation; blogs and online-community search; semi-structured retrieval; evaluation; applications; retrieval models; image and video retrieval; text and content classification, categorisation, clustering; systems efficiency; industry track; and posters.

Information retrieval is the science concerned with the effective and efficient retrieval of documents starting from their semantic content. It is employed to fulfill some information need from a large number of digital documents. Given the ever-growing amount of documents available and the heterogeneous data structures used for storage, information retrieval has recently faced and tackled novel applications.

In this book, Melucci and Baeza-Yates present a wide-spectrum illustration of recent research results in advanced areas related to information retrieval. Readers will find chapters on e.g. aggregated search, digital advertising, digital libraries, discovery of spam and opinions, information retrieval in context, multimedia resource discovery, quantum mechanics applied to information retrieval, scalability challenges in web search engines, and interactive information retrieval evaluation. All chapters are written by well-known researchers, are completely self-contained and comprehensive, and are complemented by an integrated bibliography and subject index.

With this selection, the editors provide the most up-to-date survey of topics usually not addressed in depth in traditional (text)books on information retrieval. The presentation is intended for a wide audience of people interested in information retrieval: undergraduate and graduate students, post-doctoral researchers, lecturers, and industrial researchers.

Ever since its inception, the Web has changed the landscape of human experiences on how we interact with one another and data through service infrastructures via various computing devices. This interweaving environment is now becoming ever more embedded into devices and systems that integrate seamlessly on how we live, both in our working or leisure time. For this volume, King and Baeza-Yates selected some pioneering and cutting-edge research work that is pointing to the future of the Web. Based on the Workshop Track of the 17th International World Wide Web Conference (WWW2008) in Beijing, they selected the top contributions and asked the authors to resubmit their work with a minimum of one third of additional material from their original workshop manuscripts to be considered for this volume. After a second-round of reviews and selection, 16 contributions were finally accepted. The work within this volume represents the tip of an iceberg of the many exciting advancements on the WWW. It covers topics like semantic web services, location-based and mobile applications, personalized and context-dependent user interfaces, social networks, and folksonomies. The presentations aim at researchers in academia and industry by showcasing latest research findings. Overall they deliver an excellent picture of the current state-of-the-art, and will also serve as the basis for ongoing research discussions and point to new directions.

This book constitutes the refereed proceedings of the 14th International Symposium on String Processing and Information Retrieval, SPIRE 2007, held in Santiago, Chile, October 29-31, 2007.

The 27 revised full papers presented were carefully reviewed and selected from 77 submissions. The papers topics span dictionary algorithms, text searching, pattern matching, text compression, text mining, natural language processing, automata based string processing, IR modelling, indexing, ranking and filtering, interface design, visualization, cross-lingual IR systems, multimedia IR, digital libraries, collaborative retrieval, Web related applications, DNA sequencing and applications in molecular biology, evolution and phylogenetics, recognition of genes and regulatory elements, sequence driven protein structure prediction, XML, SGML, information retrieval from semi-structured data, text mining and generation of structured data from text.

Applied probability is a broad research area that is of interest to scientists in diverse disciplines in science and technology, including: anthropology, biology, communication theory, economics, epidemiology, finance, geography, linguistics, medicine, meteorology, operations research, psychology, quality control, sociology, and statistics. Recent Advances in Applied Probability is a collection of survey articles that bring together the work of leading researchers in applied probability to present current research advances in this important area.

This volume will be of interest to graduate students and researchers whose research is closely connected to probability modelling and their applications. It is suitable for one semester graduate level research seminar in applied probability.

In recent years, IT application scenarios have evolved in very innovative ways. Highly distributed networks have now become a common platform for large-scale distributed programming, high bandwidth communications are inexpensive and widespread, and most of our work tools are equipped with processors enabling us to perform a multitude of tasks. In addition, mobile computing (referring specifically to wireless devices and, more broadly, to dynamically configured systems) has made it possible to exploit interaction in novel ways.
To harness the flexibility and power of these rapidly evolving, interactive systems, there is need of radically new foundational ideas and principles; there is need to develop the theoretical foundations required to design these systems and to cope with the many complex issues involved in their construction; and there is need to develop effective principles for building and analyzing such systems.
Reflecting the diverse and wide spectrum of topics and interests within the theoretical computer science community, Foundations of Information Technology in the Era of Network and Mobile Computing is presented in two distinct but interrelated tracks:

-Algorithms, Complexity and Models of Computation;
-Logic, Semantics, Specification and Verification.This volume contains 45 original and significant contributions addressing these foundational questions, as well as 4 papers by outstanding invited speakers. These papers were presented at the 2nd IFIP International Conference on Theoretical Computer Science (TCS 2002), which was held in conjunction with the 17th World Computer Congress, sponsored by the International Federation for Information Processing (IFIP), and which convened in Montreal, Quebec, Canada in August 2002."

This volume constitutes the proceedings of the Second International Symposium, Latin American Theoretical Informatics, LATIN '95, held in Valparaiso, Chile in April 1995.
The LATIN symposia are intended to be comprehensive events on the theory of computing; they provide a high-level forum for theoretical computer science research in Latin America and facilitate a strong and healthy interaction with the international community. The 38 papers presented in this volume were carefully selected from 68 submissions. Despite the intended broad coverage there are quite a number of papers devoted to computational graph theory; other topics strongly represented are complexity, automata theory, networks, symbolic computation, formal languages, data structures, and pattern matching.

The articles in this proceedings were presented at the 13th International Conference of the Chilean Computer Science Society held in La Serena, Chile on October 14-16, 1993. A record number of 90 submissions were received this year in response to the call for papers. They came from 19 countries in four continents. The 44 articles presented here were selected by the program committee whose members were Ricardo Baeza-Yates (Chair, Univ. de Chile) Leopoldo Bertossi (U niv. Catolica de Chile) Jorge Boria (Schlumberger, USA & UNICEN, Argentina) Edgardo Broner (Univ. Simon Bolivar, Venezuela) Pere Brunet (Polytechnic of Catalunya, Spain) Jose Blakeley (Texas Instruments, USA) Eduardo Krell (Fundacion Chile) Tomas Lang (Univ. of California at Irvine, USA) Rosana Lanzelotte (PUC-Rio, Brazil) Stefano Levialdi (Univ. di Roma, Italy) Jorge Lobo (Univ. of Illinois at Chicago, USA) Jose Palazzo (UFRGS, Brazil) Christian Queinnec (Poly technique & INRIA, France) Gregory Rawlins (Indiana University, USA) Carlos Scheel (Tecnologico de Monterrey, Mexico) Robbert Van Renesse (Cornell Univ. , USA) The criteria for selection was based primarily on quality; we also considered relevance, clarity and the potential benefit to the community. The contents of these proceedings are organized on six main areas (number of papers in parentheses) : Algorithms and Data Structures (10); Databases and Information Systems (6); Distributed Systems and Computer Architecture (6); Logic and Knowledge (8); Petri Nets (4); and Software Engineering and Programming Languages (10). They also include one invited paper.

Introduction. Historical Overview. Databases: Office Information Systems Engineering (J. Palazzo, D. Alcoba) Artificial Intelligence, Logic, and Functional Programming: A HyperIcon Interface to a Blackboard System for Planning Research Projects (P. Charlton, C. Burdorf). Algorithms and Data Structures: Classification of Quadratic Algorithms for Multiplying Polynomials of Small Degree Over Finite Fields (A. Averbuch et al.). Object Oriented Systems: A Graphical Interactive Object Oriented Development System (M. Adar et al.). Distributed Systems: Preserving Distributed Data Coherence Using Asynchronous Broadcasts (J. Piquer). Complexity and Parallel Algorithms: Parallel Algorithms for NPComplete Problems (M. Robson). Computer Architecture and Networks: The Caracas Multiprocessor System (M. Campo et al.). 30 additional articles. Index.