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"The aim of this book is to provide a basis for understanding recent developments in the field and to outline directions for information search technologies. The text presents significant contributions to the research community and industry, covering topics such as the semantic search, natural language processing, parallel information retrieval, image and multimedia retrieval, text categorisation, context technology, cross-language retrieval, and mobile information services. The book is a balanced mixture of theory, practice, tools and applications"--Provided by publisher. "This book is an essential reference to cutting-edge issues and future directions in information retrieval Information retrieval (IR) can be defined as the process of representing, managing, searching, retrieving, and presenting information. Good IR involves understanding information needs and interests, developing an effective search technique, system, presentation, distribution and delivery. The increased use of the Web and wider availability of information in this environment led to the development of Web search engines. This change has brought fresh challenges to a wider variety of users' needs, tasks, and types of information. Today, search engines are seen in enterprises, on laptops, in individual websites, in library catalogues, and elsewhere. Information Retrieval: Searching in the 21st Century focuses on core concepts, and current trends in the field. This book focuses on: Information Retrieval Models User-centred Evaluation of Information Retrieval Systems Multimedia Resource Discovery Image Users' Needs and Searching Behaviour Web Information Retrieval Mobile Search Context and Information Retrieval Text Categorisation and Genre in Information Retrieval Semantic Search The Role of Natural Language Processing in Information Retrieval: Search for Meaning and Structure Cross-language Information Retrieval Performance Issues in Parallel Computing for Information Retrieval. This book is an invaluable reference for graduate students on IR courses or courses in related disciplines (e.g. computer science, information science, human-computer interaction, and knowledge management), academic and industrial researchers, and industrial personnel tracking information search technology developments to understand the business implications. Intermediate-advanced level undergraduate students on IR or related courses will also find this text insightful. Chapters are supplemented with exercises to stimulate further thinking"--Provided by publisher.

Information retrieval. --- Information retrieval --- Data retrieval --- Data storage --- Discovery, Information --- Information discovery --- Information storage and retrieval --- Retrieval of information --- Documentation --- Information science --- Information storage and retrieval systems

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"Card sorting is an effective, easy-to-use method for understanding how people think about content and categories. It helps you create information that is easy to find and understand. In 'Card sorting: designing usable categories', Donna Spencer shows you how to plan and run a card sort, analyze the results, and apply the outcomes to your projects."--The back cover

Cognitive psychology --- Office management --- Web sites --- Computer architecture --- Information storage and retrieval systems --- Information theory --- Data sets --- #SBIB:309H1720 --- Datasets --- Raw data sets --- Computer files --- Electronic information resources --- Communication theory --- Communication --- Cybernetics --- Architecture --- Architecture, Computer --- Web site development --- Microformats --- Design --- Analysis --- Informatiekunde, informatie management --- Authorship --- Computer architecture / Analysis --- Information storage and retrieval systems / Architecture --- Web sites / Design

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From mobile phones to the Internet, our lives depend increasingly on distributed systems linking computers and other devices together in a seamless and transparent way. The fourth edition of this best-selling text continues to provide a comprehensive source of material on the principles and practice of distributed computer systems and the exciting new developments based on them, using a wealth of modern case studies to illustrate their design and development.

681.3*C21 --- 681.3*C24 --- 681.3*D47 --- 681.3*H34 --- 681.3*H34 Systems and software: current awareness systems selective dissemination of information SDI information networks question-answering (fact retrieval) systems (Information storage and retrieval) --- Systems and software: current awareness systems selective dissemination of information SDI information networks question-answering (fact retrieval) systems (Information storage and retrieval) --- 681.3*D47 Organization and design: batch processing systems distributed systems hierarchical design interactive systems real-time systems (Operating systems) --- Organization and design: batch processing systems distributed systems hierarchical design interactive systems real-time systems (Operating systems) --- 681.3*C24 Distributed systems: distributed databases distributed applications networkoperating systems --- Distributed systems: distributed databases distributed applications networkoperating systems --- 681.3*C21 Network architecture and design: networks (centralized, circuit switching, distributed, packet, store and forward) network communications netword topology --- Network architecture and design: networks (centralized, circuit switching, distributed, packet, store and forward) network communications netword topology --- gedistribueerde besturing --- dataprocessing --- gedistribueerde systeemarchitecturen --- data processing --- Network architecture and design: networks (centralized, circuit switching, distributed, packet, store and forward); network communications; netword topology --- Distributed systems: distributed databases; distributed applications; networkoperating systems --- 681.3*C24 Distributed systems: distributed databases; distributed applications; networkoperating systems --- 681.3*C21 Network architecture and design: networks (centralized, circuit switching, distributed, packet, store and forward); network communications; netword topology --- Electronic data processing --- Distributed computer systems in electronic data processing --- Distributed computing --- Distributed processing in electronic data processing --- Computer networks --- 681.3*H34 Systems and software: current awareness systems; selective dissemination of information; SDI; information networks; question-answering (fact retrieval) systems (Information storage and retrieval) --- Systems and software: current awareness systems; selective dissemination of information; SDI; information networks; question-answering (fact retrieval) systems (Information storage and retrieval) --- 681.3*D47 Organization and design: batch processing systems; distributed systems; hierarchical design; interactive systems; real-time systems (Operating systems) --- Organization and design: batch processing systems; distributed systems; hierarchical design; interactive systems; real-time systems (Operating systems) --- Distributed processing --- netwerken --- netwerkbeheer --- computerbeveiliging --- Computer architecture. Operating systems --- Distributed processing. --- Computerarchitectuur. Operating systems

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Introduction 

Sinusoids 

Spectrum representation 

Sampling and aliasing 

FIR filters 

Frequency response of FIR filters 

The Z-transform 

IRR filters 

Continuous-time signals and LTI systems 

Frequency response 

Continuous-time fourier transform 

Filtering, modulation, and sampling 

Computing the spectrum 

Complex numbers 

Programming in Matlab 

Labaratory project 

Cr-rom demos


FIR filter (finite impulse response filter) --- Computer. Automation --- signaalprocessoren --- Electronics --- Z-transformatie --- digitale signalen --- digitale technieken --- DSP (digitale signaalprocessoren) --- FT (Fourier transformatie) --- filters --- Signal processing --- Multimedia systems. --- Traitement du signal --- Multimédia --- Digital techniques. --- Mathematics. --- Techniques numériques --- Mathématiques --- 621.38 --- Beeldverwerking --- Signaalverwerking --- dsp (digital signal processing) --- fir filter --- iir filter --- fourier transformatie --- matlab --- Multimédia --- Techniques numériques --- Mathématiques --- Multimedia systems --- Computer-based multimedia information systems --- Multimedia computing --- Multimedia information systems --- Multimedia knowledge systems --- Information storage and retrieval systems --- Digital signal processing --- Digital communications --- Digital electronics --- Digital techniques

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Like the popular second edition, Data Mining: Practical Machine Learning Tools and Techniques offers a thorough grounding in machine learning concepts as well as practical advice on applying machine learning tools and techniques in real-world data mining situations. Inside, you'll learn all you need to know about preparing inputs, interpreting outputs, evaluating results, and the algorithmic methods at the heart of successful data mining?including both tried-and-true techniques of today as well as methods at the leading edge of contemporary research. Complementing the book is a fully functional platform-independent open source Weka software for machine learning, available for free download. The book is a major revision of the second edition that appeared in 2005. While the basic core remains the same, it has been updated to reflect the changes that have taken place over the last four or five years. The highlights for the updated new edition include completely revised technique sections; New chapter on Data Transformations, new chapter on Ensemble Learning, new chapter on Massive Data Sets, a new ?book release? version of the popular Weka machine learning open source software (developed by the authors and specific to the Third Edition); new material on ?multi-instance learning?; new information on ranking the classification, plus comprehensive updates and modernization throughout. All in all, approximately 100 pages of new material. * Thorough grounding in machine learning concepts as well as practical advice on applying the tools and techniques * Algorithmic methods at the heart of successful data mining?including tired and true methods as well as leading edge methods * Performance improvement techniques that work by transforming the input or output * Downloadable Weka, a collection of machine learning algorithms for data mining tasks, including tools for data pre-processing, classification, regression, clustering, association rules, and visualization?in an updated, interactive Interface.

Information systems --- Artificial intelligence. Robotics. Simulation. Graphics --- Data mining. --- Data mining --- 301 --- AA / International- internationaal --- 681.3*H28 --- 681.3*H2 --- 681.3*H3 --- 681.3*I26 --- 681.3*J3 --- Techniek van statistische inlichtingen. Organisatie van de statistische enquêtes. Statistische kritiek --- Information storage and retrieval --- Algorithmic knowledge discovery --- Factual data analysis --- KDD (Information retrieval) --- Knowledge discovery in data --- Knowledge discovery in databases --- Mining, Data --- Database searching --- 681.3*J3 Life and medical sciences (Computer applications) --- Life and medical sciences (Computer applications) --- 681.3*I26 Learning: analogies; concept learning; induction; knowledge acquisition; language acquisition; parameter learning (Artificial intelligence)--See also {681.3*K32} --- Learning: analogies; concept learning; induction; knowledge acquisition; language acquisition; parameter learning (Artificial intelligence)--See also {681.3*K32} --- 681.3*H2 Database management: security; integrity; protection--See also {?681.5*E5} --- Database management: security; integrity; protection--See also {?681.5*E5} --- 681.3*H28 Database applications --- Database applications