Search (8 results, page 1 of 1)

0.01871771 = product of:
  0.046794273 = sum of:
    0.022099894 = weight(_text_:7 in 2752) [ClassicSimilarity], result of:
      0.022099894 = score(doc=2752,freq=2.0), product of:
        0.17251469 = queryWeight, product of:
          3.3127685 = idf(docFreq=4376, maxDocs=44218)
          0.052075688 = queryNorm
        0.12810442 = fieldWeight in 2752, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.3127685 = idf(docFreq=4376, maxDocs=44218)
          0.02734375 = fieldNorm(doc=2752)
    0.02469438 = weight(_text_:22 in 2752) [ClassicSimilarity], result of:
      0.02469438 = score(doc=2752,freq=2.0), product of:
        0.18236019 = queryWeight, product of:
          3.5018296 = idf(docFreq=3622, maxDocs=44218)
          0.052075688 = queryNorm
        0.1354154 = fieldWeight in 2752, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.5018296 = idf(docFreq=3622, maxDocs=44218)
          0.02734375 = fieldNorm(doc=2752)
  0.4 = coord(2/5)

Content

Inhalt: Acknowledgments; Abstract; Zusammenfassung; Contents; List of Figures; List of Tables; List of Acronyms; Chapter 1 Introduction ; 1.1 Research Questions; 1.2 Thesis Outline; Part I Fundamentals ; Chapter 2 Information Retrieval for Young Users ; 2.1 Basics of Information Retrieval; 2.1.1 Architecture of an IR System; 2.1.2 Relevance Ranking; 2.1.3 Search User Interfaces; 2.1.4 Targeted Search Engines; 2.2 Aspects of Child Development Relevant for Information Retrieval Tasks; 2.2.1 Human Cognitive Development; 2.2.2 Information Processing Theory; 2.2.3 Psychosocial Development 2.3 User Studies and Evaluation2.3.1 Methods in User Studies; 2.3.2 Types of Evaluation; 2.3.3 Evaluation with Children; 2.4 Discussion; Chapter 3 State of the Art ; 3.1 Children's Information-Seeking Behaviour; 3.1.1 Querying Behaviour; 3.1.2 Search Strategy; 3.1.3 Navigation Style; 3.1.4 User Interface; 3.1.5 Relevance Judgement; 3.2 Existing Algorithms and User Interface Concepts for Children; 3.2.1 Query; 3.2.2 Content; 3.2.3 Ranking; 3.2.4 Search Result Visualisation; 3.3 Existing Information Retrieval Systems for Children; 3.3.1 Digital Book Libraries; 3.3.2 Web Search Engines 3.4 Summary and DiscussionPart II Studying Open Issues ; Chapter 4 Usability of Existing Search Engines for Young Users ; 4.1 Assessment Criteria; 4.1.1 Criteria for Matching the Motor Skills; 4.1.2 Criteria for Matching the Cognitive Skills; 4.2 Results; 4.2.1 Conformance with Motor Skills; 4.2.2 Conformance with the Cognitive Skills; 4.2.3 Presentation of Search Results; 4.2.4 Browsing versus Searching; 4.2.5 Navigational Style; 4.3 Summary and Discussion; Chapter 5 Large-scale Analysis of Children's Queries and Search Interactions; 5.1 Dataset; 5.2 Results; 5.3 Summary and Discussion Chapter 6 Differences in Usability and Perception of Targeted Web Search Engines between Children and Adults 6.1 Related Work; 6.2 User Study; 6.3 Study Results; 6.4 Summary and Discussion; Part III Tackling the Challenges ; Chapter 7 Search User Interface Design for Children ; 7.1 Conceptual Challenges and Possible Solutions; 7.2 Knowledge Journey Design; 7.3 Evaluation; 7.3.1 Study Design; 7.3.2 Study Results; 7.4 Voice-Controlled Search: Initial Study; 7.4.1 User Study; 7.5 Summary and Discussion; Chapter 8 Addressing User Diversity ; 8.1 Evolving Search User Interface 8.1.1 Mapping Function8.1.2 Evolving Skills; 8.1.3 Detection of User Abilities; 8.1.4 Design Concepts; 8.2 Adaptation of a Search User Interface towards User Needs; 8.2.1 Design & Implementation; 8.2.2 Search Input; 8.2.3 Result Output; 8.2.4 General Properties; 8.2.5 Configuration and Further Details; 8.3 Evaluation; 8.3.1 Study Design; 8.3.2 Study Results; 8.3.3 Preferred UI Settings; 8.3.4 User satisfaction; 8.4 Knowledge Journey Exhibit; 8.4.1 Hardware; 8.4.2 Frontend; 8.4.3 Backend; 8.5 Summary and Discussion; Chapter 9 Supporting Visual Searchers in Processing Search Results 9.1 Related Work

Date

1. 2.2016 18:25:22

0.008839957 = product of:
  0.044199787 = sum of:
    0.044199787 = weight(_text_:7 in 4784) [ClassicSimilarity], result of:
      0.044199787 = score(doc=4784,freq=2.0), product of:
        0.17251469 = queryWeight, product of:
          3.3127685 = idf(docFreq=4376, maxDocs=44218)
          0.052075688 = queryNorm
        0.25620884 = fieldWeight in 4784, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.3127685 = idf(docFreq=4376, maxDocs=44218)
          0.0546875 = fieldNorm(doc=4784)
  0.2 = coord(1/5)

0.007982429 = product of:
  0.039912146 = sum of:
    0.039912146 = weight(_text_:22 in 2753) [ClassicSimilarity], result of:
      0.039912146 = score(doc=2753,freq=4.0), product of:
        0.18236019 = queryWeight, product of:
          3.5018296 = idf(docFreq=3622, maxDocs=44218)
          0.052075688 = queryNorm
        0.21886435 = fieldWeight in 2753, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.5018296 = idf(docFreq=3622, maxDocs=44218)
          0.03125 = fieldNorm(doc=2753)
  0.2 = coord(1/5)

Abstract

This book constitutes the thoroughly refereed post-conference proceedings of the First COST Action IC1302 International KEYSTONE Conference on semantic Keyword-based Search on Structured Data Sources, IKC 2015, held in Coimbra, Portugal, in September 2015. The 13 revised full papers, 3 revised short papers, and 2 invited papers were carefully reviewed and selected from 22 initial submissions. The paper topics cover techniques for keyword search, semantic data management, social Web and social media, information retrieval, benchmarking for search on big data.

Date

1. 2.2016 18:25:22

0.0071437657 = product of:
  0.03571883 = sum of:
    0.03571883 = weight(_text_:7 in 5329) [ClassicSimilarity], result of:
      0.03571883 = score(doc=5329,freq=4.0), product of:
        0.17251469 = queryWeight, product of:
          3.3127685 = idf(docFreq=4376, maxDocs=44218)
          0.052075688 = queryNorm
        0.20704803 = fieldWeight in 5329, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.3127685 = idf(docFreq=4376, maxDocs=44218)
          0.03125 = fieldNorm(doc=5329)
  0.2 = coord(1/5)

Abstract

This book describes efficient and effective techniques for harnessing the power of Linked Data by tackling the various aspects of managing its growing volume: storing, querying, reasoning, provenance management and benchmarking. To this end, Chapter 1 introduces the main concepts of the Semantic Web and Linked Data and provides a roadmap for the book. Next, Chapter 2 briefly presents the basic concepts underpinning Linked Data technologies that are discussed in the book. Chapter 3 then offers an overview of various techniques and systems for centrally querying RDF datasets, and Chapter 4 outlines various techniques and systems for efficiently querying large RDF datasets in distributed environments. Subsequently, Chapter 5 explores how streaming requirements are addressed in current, state-of-the-art RDF stream data processing. Chapter 6 covers performance and scaling issues of distributed RDF reasoning systems, while Chapter 7 details benchmarks for RDF query engines and instance matching systems. Chapter 8 addresses the provenance management for Linked Data and presents the different provenance models developed. Lastly, Chapter 9 offers a brief summary, highlighting and providing insights into some of the open challenges and research directions. Providing an updated overview of methods, technologies and systems related to Linked Data this book is mainly intended for students and researchers who are interested in the Linked Data domain. It enables students to gain an understanding of the foundations and underpinning technologies and standards for Linked Data, while researchers benefit from the in-depth coverage of the emerging and ongoing advances in Linked Data storing, querying, reasoning, and provenance management systems. Further, it serves as a starting point to tackle the next research challenges in the domain of Linked Data management.

Date

7. 7.2019 11:59:21

0.0063142553 = product of:
  0.031571276 = sum of:
    0.031571276 = weight(_text_:7 in 3934) [ClassicSimilarity], result of:
      0.031571276 = score(doc=3934,freq=2.0), product of:
        0.17251469 = queryWeight, product of:
          3.3127685 = idf(docFreq=4376, maxDocs=44218)
          0.052075688 = queryNorm
        0.18300632 = fieldWeight in 3934, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.3127685 = idf(docFreq=4376, maxDocs=44218)
          0.0390625 = fieldNorm(doc=3934)
  0.2 = coord(1/5)

0.0050514047 = product of:
  0.025257023 = sum of:
    0.025257023 = weight(_text_:7 in 362) [ClassicSimilarity], result of:
      0.025257023 = score(doc=362,freq=2.0), product of:
        0.17251469 = queryWeight, product of:
          3.3127685 = idf(docFreq=4376, maxDocs=44218)
          0.052075688 = queryNorm
        0.14640506 = fieldWeight in 362, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.3127685 = idf(docFreq=4376, maxDocs=44218)
          0.03125 = fieldNorm(doc=362)
  0.2 = coord(1/5)

Isbn

978-1-4614-3222-7

0.0050514047 = product of:
  0.025257023 = sum of:
    0.025257023 = weight(_text_:7 in 1735) [ClassicSimilarity], result of:
      0.025257023 = score(doc=1735,freq=2.0), product of:
        0.17251469 = queryWeight, product of:
          3.3127685 = idf(docFreq=4376, maxDocs=44218)
          0.052075688 = queryNorm
        0.14640506 = fieldWeight in 1735, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.3127685 = idf(docFreq=4376, maxDocs=44218)
          0.03125 = fieldNorm(doc=1735)
  0.2 = coord(1/5)

Isbn

978-3-8274-2023-7

0.0050514047 = product of:
  0.025257023 = sum of:
    0.025257023 = weight(_text_:7 in 2246) [ClassicSimilarity], result of:
      0.025257023 = score(doc=2246,freq=2.0), product of:
        0.17251469 = queryWeight, product of:
          3.3127685 = idf(docFreq=4376, maxDocs=44218)
          0.052075688 = queryNorm
        0.14640506 = fieldWeight in 2246, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.3127685 = idf(docFreq=4376, maxDocs=44218)
          0.03125 = fieldNorm(doc=2246)
  0.2 = coord(1/5)

Isbn

978-3-642-54885-7