Search (7 results, page 1 of 1)

  • × classification_ss:"ST 270"
  1. Ceri, S.; Bozzon, A.; Brambilla, M.; Della Valle, E.; Fraternali, P.; Quarteroni, S.: Web Information Retrieval (2013) 0.03
    0.026209904 = sum of:
      0.012022378 = product of:
        0.04808951 = sum of:
          0.04808951 = weight(_text_:authors in 1082) [ClassicSimilarity], result of:
            0.04808951 = score(doc=1082,freq=2.0), product of:
              0.2386896 = queryWeight, product of:
                4.558814 = idf(docFreq=1258, maxDocs=44218)
                0.052357826 = queryNorm
              0.20147301 = fieldWeight in 1082, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.558814 = idf(docFreq=1258, maxDocs=44218)
                0.03125 = fieldNorm(doc=1082)
        0.25 = coord(1/4)
      0.014187526 = product of:
        0.028375052 = sum of:
          0.028375052 = weight(_text_:22 in 1082) [ClassicSimilarity], result of:
            0.028375052 = score(doc=1082,freq=2.0), product of:
              0.1833482 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.052357826 = queryNorm
              0.15476047 = fieldWeight in 1082, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.03125 = fieldNorm(doc=1082)
        0.5 = coord(1/2)
    
    Abstract
    With the proliferation of huge amounts of (heterogeneous) data on the Web, the importance of information retrieval (IR) has grown considerably over the last few years. Big players in the computer industry, such as Google, Microsoft and Yahoo!, are the primary contributors of technology for fast access to Web-based information; and searching capabilities are now integrated into most information systems, ranging from business management software and customer relationship systems to social networks and mobile phone applications. Ceri and his co-authors aim at taking their readers from the foundations of modern information retrieval to the most advanced challenges of Web IR. To this end, their book is divided into three parts. The first part addresses the principles of IR and provides a systematic and compact description of basic information retrieval techniques (including binary, vector space and probabilistic models as well as natural language search processing) before focusing on its application to the Web. Part two addresses the foundational aspects of Web IR by discussing the general architecture of search engines (with a focus on the crawling and indexing processes), describing link analysis methods (specifically Page Rank and HITS), addressing recommendation and diversification, and finally presenting advertising in search (the main source of revenues for search engines). The third and final part describes advanced aspects of Web search, each chapter providing a self-contained, up-to-date survey on current Web research directions. Topics in this part include meta-search and multi-domain search, semantic search, search in the context of multimedia data, and crowd search. The book is ideally suited to courses on information retrieval, as it covers all Web-independent foundational aspects. Its presentation is self-contained and does not require prior background knowledge. It can also be used in the context of classic courses on data management, allowing the instructor to cover both structured and unstructured data in various formats. Its classroom use is facilitated by a set of slides, which can be downloaded from www.search-computing.org.
    Date
    16.10.2013 19:22:44
  2. TREC: experiment and evaluation in information retrieval (2005) 0.02
    0.018478438 = sum of:
      0.007513987 = product of:
        0.030055948 = sum of:
          0.030055948 = weight(_text_:authors in 636) [ClassicSimilarity], result of:
            0.030055948 = score(doc=636,freq=2.0), product of:
              0.2386896 = queryWeight, product of:
                4.558814 = idf(docFreq=1258, maxDocs=44218)
                0.052357826 = queryNorm
              0.12592064 = fieldWeight in 636, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.558814 = idf(docFreq=1258, maxDocs=44218)
                0.01953125 = fieldNorm(doc=636)
        0.25 = coord(1/4)
      0.01096445 = product of:
        0.0219289 = sum of:
          0.0219289 = weight(_text_:u in 636) [ClassicSimilarity], result of:
            0.0219289 = score(doc=636,freq=4.0), product of:
              0.17144279 = queryWeight, product of:
                3.2744443 = idf(docFreq=4547, maxDocs=44218)
                0.052357826 = queryNorm
              0.12790798 = fieldWeight in 636, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.2744443 = idf(docFreq=4547, maxDocs=44218)
                0.01953125 = fieldNorm(doc=636)
        0.5 = coord(1/2)
    
    Editor
    Voorhees, E.M. u. D.K. Harman
    Footnote
    Rez. in: JASIST 58(2007) no.6, S.910-911 (J.L. Vicedo u. J. Gomez): "The Text REtrieval Conference (TREC) is a yearly workshop hosted by the U.S. government's National Institute of Standards and Technology (NIST) that fosters and supports research in information retrieval as well as speeding the transfer of technology between research labs and industry. Since 1992, TREC has provided the infrastructure necessary for large-scale evaluations of different text retrieval methodologies. TREC impact has been very important and its success has been mainly supported by its continuous adaptation to the emerging information retrieval needs. Not in vain, TREC has built evaluation benchmarks for more than 20 different retrieval problems such as Web retrieval, speech retrieval, or question-answering. The large and intense trajectory of annual TREC conferences has resulted in an immense bulk of documents reflecting the different eval uation and research efforts developed. This situation makes it difficult sometimes to observe clearly how research in information retrieval (IR) has evolved over the course of TREC. TREC: Experiment and Evaluation in Information Retrieval succeeds in organizing and condensing all this research into a manageable volume that describes TREC history and summarizes the main lessons learned. The book is organized into three parts. The first part is devoted to the description of TREC's origin and history, the test collections, and the evaluation methodology developed. The second part describes a selection of the major evaluation exercises (tracks), and the third part contains contributions from research groups that had a large and remarkable participation in TREC. Finally, Karen Spark Jones, one of the main promoters of research in IR, closes the book with an epilogue that analyzes the impact of TREC on this research field.
    ... TREC: Experiment and Evaluation in Information Retrieval is a reliable and comprehensive review of the TREC program and has been adopted by NIST as the official history of TREC (see http://trec.nist.gov). We were favorably surprised by the book. Well structured and written, chapters are self-contained and the existence of references to specialized and more detailed publications is continuous, which makes it easier to expand into the different aspects analyzed in the text. This book succeeds in compiling TREC evolution from its inception in 1992 to 2003 in an adequate and manageable volume. Thanks to the impressive effort performed by the authors and their experience in the field, it can satiate the interests of a great variety of readers. While expert researchers in the IR field and IR-related industrial companies can use it as a reference manual, it seems especially useful for students and non-expert readers willing to approach this research area. Like NIST, we would recommend this reading to anyone who may be interested in textual information retrieval."
  3. Looking for information : a survey on research on information seeking, needs, and behavior (2016) 0.01
    0.01096445 = product of:
      0.0219289 = sum of:
        0.0219289 = product of:
          0.0438578 = sum of:
            0.0438578 = weight(_text_:u in 3803) [ClassicSimilarity], result of:
              0.0438578 = score(doc=3803,freq=4.0), product of:
                0.17144279 = queryWeight, product of:
                  3.2744443 = idf(docFreq=4547, maxDocs=44218)
                  0.052357826 = queryNorm
                0.25581595 = fieldWeight in 3803, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.2744443 = idf(docFreq=4547, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=3803)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Editor
    Case, D.O. u. Lisa M. Given
    Theme
    Semantisches Umfeld in Indexierung u. Retrieval
  4. Dominich, S.: Mathematical foundations of information retrieval (2001) 0.01
    0.008867204 = product of:
      0.017734408 = sum of:
        0.017734408 = product of:
          0.035468817 = sum of:
            0.035468817 = weight(_text_:22 in 1753) [ClassicSimilarity], result of:
              0.035468817 = score(doc=1753,freq=2.0), product of:
                0.1833482 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.052357826 = queryNorm
                0.19345059 = fieldWeight in 1753, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=1753)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 3.2008 12:26:32
  5. Gödert, W.; Lepsky, K.; Nagelschmidt, M.: Informationserschließung und Automatisches Indexieren : ein Lehr- und Arbeitsbuch (2011) 0.01
    0.0077530374 = product of:
      0.015506075 = sum of:
        0.015506075 = product of:
          0.03101215 = sum of:
            0.03101215 = weight(_text_:u in 2550) [ClassicSimilarity], result of:
              0.03101215 = score(doc=2550,freq=2.0), product of:
                0.17144279 = queryWeight, product of:
                  3.2744443 = idf(docFreq=4547, maxDocs=44218)
                  0.052357826 = queryNorm
                0.1808892 = fieldWeight in 2550, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.2744443 = idf(docFreq=4547, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=2550)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Theme
    Grundlagen u. Einführungen: Allgemeine Literatur
  6. Social information retrieval systems : emerging technologies and applications for searching the Web effectively (2008) 0.01
    0.00620243 = product of:
      0.01240486 = sum of:
        0.01240486 = product of:
          0.02480972 = sum of:
            0.02480972 = weight(_text_:u in 4127) [ClassicSimilarity], result of:
              0.02480972 = score(doc=4127,freq=2.0), product of:
                0.17144279 = queryWeight, product of:
                  3.2744443 = idf(docFreq=4547, maxDocs=44218)
                  0.052357826 = queryNorm
                0.14471136 = fieldWeight in 4127, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.2744443 = idf(docFreq=4547, maxDocs=44218)
                  0.03125 = fieldNorm(doc=4127)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Editor
    Goh, D. u. S. Foo
  7. Manning, C.D.; Raghavan, P.; Schütze, H.: Introduction to information retrieval (2008) 0.01
    0.006011189 = product of:
      0.012022378 = sum of:
        0.012022378 = product of:
          0.04808951 = sum of:
            0.04808951 = weight(_text_:authors in 4041) [ClassicSimilarity], result of:
              0.04808951 = score(doc=4041,freq=2.0), product of:
                0.2386896 = queryWeight, product of:
                  4.558814 = idf(docFreq=1258, maxDocs=44218)
                  0.052357826 = queryNorm
                0.20147301 = fieldWeight in 4041, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.558814 = idf(docFreq=1258, maxDocs=44218)
                  0.03125 = fieldNorm(doc=4041)
          0.25 = coord(1/4)
      0.5 = coord(1/2)
    
    Abstract
    Class-tested and coherent, this textbook teaches information retrieval, including web search, text classification, and text clustering from basic concepts. Ideas are explained using examples and figures, making it perfect for introductory courses in information retrieval for advanced undergraduates and graduate students. Slides and additional exercises are available for lecturers. - This book provides what Salton and Van Rijsbergen both failed to achieve. Even more important, unlike some other books in IR, the authors appear to care about making the theory as accessible as possible to the reader, on occasion including short primers to certain topics or choosing to explain difficult concepts using simplified approaches. Its coverage [is] excellent, the quality of writing high and I was surprised how much I learned from reading it. I think the online resources are impressive.

Languages

Types