Search (5 results, page 1 of 1)

0.010219913 = product of:
  0.030659739 = sum of:
    0.018459043 = product of:
      0.036918085 = sum of:
        0.036918085 = weight(_text_:theory in 4515) [ClassicSimilarity], result of:
          0.036918085 = score(doc=4515,freq=4.0), product of:
            0.16234003 = queryWeight, product of:
              4.1583924 = idf(docFreq=1878, maxDocs=44218)
              0.03903913 = queryNorm
            0.22741209 = fieldWeight in 4515, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.1583924 = idf(docFreq=1878, maxDocs=44218)
              0.02734375 = fieldNorm(doc=4515)
      0.5 = coord(1/2)
    0.012200696 = product of:
      0.024401393 = sum of:
        0.024401393 = weight(_text_:methods in 4515) [ClassicSimilarity], result of:
          0.024401393 = score(doc=4515,freq=2.0), product of:
            0.15695344 = queryWeight, product of:
              4.0204134 = idf(docFreq=2156, maxDocs=44218)
              0.03903913 = queryNorm
            0.15546899 = fieldWeight in 4515, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.0204134 = idf(docFreq=2156, maxDocs=44218)
              0.02734375 = fieldNorm(doc=4515)
      0.5 = coord(1/2)
  0.33333334 = coord(2/6)

Abstract

The main purpose of this book is to sum up the vital and highly topical research issue of knowledge representation on the Web and to discuss novel solutions by combining benefits of folksonomies and Web 2.0 approaches with ontologies and semantic technologies. This book contains an overview of knowledge representation approaches in past, present and future, introduction to ontologies, Web indexing and in first case the novel approaches of developing ontologies. This title combines aspects of knowledge representation for both the Semantic Web (ontologies) and the Web 2.0 (folksonomies). Currently there is no monographic book which provides a combined overview over these topics. focus on the topic of using knowledge representation methods for document indexing purposes. For this purpose, considerations from classical librarian interests in knowledge representation (thesauri, classification schemes etc.) are included, which are not part of most other books which have a stronger background in computer science.

LCSH

Knowledge representation (Information theory)

Subject

Knowledge representation (Information theory)

0.0023239423 = product of:
  0.013943653 = sum of:
    0.013943653 = product of:
      0.027887305 = sum of:
        0.027887305 = weight(_text_:methods in 411) [ClassicSimilarity], result of:
          0.027887305 = score(doc=411,freq=2.0), product of:
            0.15695344 = queryWeight, product of:
              4.0204134 = idf(docFreq=2156, maxDocs=44218)
              0.03903913 = queryNorm
            0.17767884 = fieldWeight in 411, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.0204134 = idf(docFreq=2156, maxDocs=44218)
              0.03125 = fieldNorm(doc=411)
      0.5 = coord(1/2)
  0.16666667 = coord(1/6)

Abstract

The Web has become the world's largest database, with search being the main tool that allows organizations and individuals to exploit its huge amount of information. Search on the Web has been traditionally based on textual and structural similarities, ignoring to a large degree the semantic dimension, i.e., understanding the meaning of the query and of the document content. Combining search and semantics gives birth to the idea of semantic search. Traditional search engines have already advertised some semantic dimensions. Some of them, for instance, can enhance their generated result sets with documents that are semantically related to the query terms even though they may not include these terms. Nevertheless, the exploitation of the semantic search has not yet reached its full potential. In this book, Roberto De Virgilio, Francesco Guerra and Yannis Velegrakis present an extensive overview of the work done in Semantic Search and other related areas. They explore different technologies and solutions in depth, making their collection a valuable and stimulating reading for both academic and industrial researchers. The book is divided into three parts. The first introduces the readers to the basic notions of the Web of Data. It describes the different kinds of data that exist, their topology, and their storing and indexing techniques. The second part is dedicated to Web Search. It presents different types of search, like the exploratory or the path-oriented, alongside methods for their efficient and effective implementation. Other related topics included in this part are the use of uncertainty in query answering, the exploitation of ontologies, and the use of semantics in mashup design and operation. The focus of the third part is on linked data, and more specifically, on applying ideas originating in recommender systems on linked data management, and on techniques for the efficiently querying answering on linked data.

0.0022038599 = product of:
  0.013223159 = sum of:
    0.013223159 = product of:
      0.026446318 = sum of:
        0.026446318 = weight(_text_:22 in 767) [ClassicSimilarity], result of:
          0.026446318 = score(doc=767,freq=2.0), product of:
            0.1367084 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.03903913 = queryNorm
            0.19345059 = fieldWeight in 767, 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=767)
      0.5 = coord(1/2)
  0.16666667 = coord(1/6)

Date

22. 3.2008 14:24:08

0.0015567055 = product of:
  0.009340232 = sum of:
    0.009340232 = product of:
      0.018680464 = sum of:
        0.018680464 = weight(_text_:29 in 1981) [ClassicSimilarity], result of:
          0.018680464 = score(doc=1981,freq=2.0), product of:
            0.13732746 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.03903913 = queryNorm
            0.13602862 = fieldWeight in 1981, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.02734375 = fieldNorm(doc=1981)
      0.5 = coord(1/2)
  0.16666667 = coord(1/6)

Date

29. 3.1996 18:16:49

0.0013343189 = product of:
  0.008005913 = sum of:
    0.008005913 = product of:
      0.016011827 = sum of:
        0.016011827 = weight(_text_:29 in 1813) [ClassicSimilarity], result of:
          0.016011827 = score(doc=1813,freq=2.0), product of:
            0.13732746 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.03903913 = queryNorm
            0.11659596 = fieldWeight in 1813, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.0234375 = fieldNorm(doc=1813)
      0.5 = coord(1/2)
  0.16666667 = coord(1/6)

Date

7. 4.2008 21:41:29