Search (71 results, page 1 of 4)

0.029773992 = product of:
  0.08932197 = sum of:
    0.08932197 = sum of:
      0.0655203 = weight(_text_:publishing in 2665) [ClassicSimilarity], result of:
        0.0655203 = score(doc=2665,freq=4.0), product of:
          0.24522576 = queryWeight, product of:
            4.885643 = idf(docFreq=907, maxDocs=44218)
            0.05019314 = queryNorm
          0.2671836 = fieldWeight in 2665, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            4.885643 = idf(docFreq=907, maxDocs=44218)
            0.02734375 = fieldNorm(doc=2665)
      0.023801671 = weight(_text_:22 in 2665) [ClassicSimilarity], result of:
        0.023801671 = score(doc=2665,freq=2.0), product of:
          0.17576782 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.05019314 = queryNorm
          0.1354154 = fieldWeight in 2665, 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=2665)
  0.33333334 = coord(1/3)

Abstract

Platforms for social computing connect users via shared references to people with whom they have relationships, events attended, places lived in or traveled to, and topics such as favorite books or movies. Since free text is insufficient for expressing such references precisely and unambiguously, many social computing platforms coin identifiers for topics, places, events, and people and provide interfaces for finding and selecting these identifiers from controlled lists. Using these interfaces, users collaboratively construct a web of links among entities. This model needn't be limited to social networking sites. Understanding an item in a digital library or museum requires context: information about the topics, places, events, and people to which the item is related. Students, journalists and investigators traditionally discover this kind of context by asking "the four Ws": what, where, when and who. The DCMI Kernel Metadata Community has recognized the four Ws as fundamental elements of descriptions (Kunze & Turner, 2007). Making better use of metadata to answer these questions via links to appropriate contextual resources has been our focus in a series of research projects over the past few years. Currently we are building a system for enabling readers of any text to relate any topic, place, event or person mentioned in the text to the best explanatory resources available. This system is being developed with two different corpora: a diverse variety of biographical texts characterized by very rich and dense mentions of people, events, places and activities, and a large collection of newly-scanned books, journals and manuscripts relating to Irish culture and history. Like a social computing platform, our system consists of tools for referring to topics, places, events or people, disambiguating these references by linking them to unique identifiers, and using the disambiguated references to provide useful information in context and to link to related resources. Yet current social computing platforms, while usually amenable to importing and exporting data, tend to mint proprietary identifiers and expect links to be traversed using their own interfaces. We take a different approach, using identifiers from both established and emerging naming authorities, representing relationships using standardized metadata vocabularies, and publishing those representations using standard protocols so that links can be stored and traversed anywhere. Central to our strategy is to move from appearances in a text to naming authorities to the the construction of links for searching or querying trusted resources. Using identifiers from naming authorities, rather than literal values (as in the DCMI Kernel) or keys from a proprietary database, makes it more likely that links constructed using our system will continue to be useful in the future. WorldCat Identities URIs (http://worldcat.org/identities/) linked to Library of Congress and Deutsche Nationalbibliothek authority files for persons and organizations and Geonames (http://geonames.org/) URIs for places are stable identifiers attached to a wealth of useful metadata. Yet no naming authority can be totally comprehensive, so our system can be extended to use new sources of identifiers as needed. For example, we are experimenting with using Freebase (http://freebase.com/) URIs to identify historical events, for which no established naming authority currently exists. Stable identifiers (URIs), standardized hyperlinked data formats (XML), and uniform publishing protocols (HTTP) are key ingredients of the web's open architecture. Our system provides an example of how this open architecture can be exploited to build flexible and useful tools for connecting resources via shared references to topics, places, events, and people.

Source

Metadata for semantic and social applications : proceedings of the International Conference on Dublin Core and Metadata Applications, Berlin, 22 - 26 September 2008, DC 2008: Berlin, Germany / ed. by Jane Greenberg and Wolfgang Klas

0.0264742 = product of:
  0.0794226 = sum of:
    0.0794226 = product of:
      0.1588452 = sum of:
        0.1588452 = weight(_text_:publishing in 3358) [ClassicSimilarity], result of:
          0.1588452 = score(doc=3358,freq=2.0), product of:
            0.24522576 = queryWeight, product of:
              4.885643 = idf(docFreq=907, maxDocs=44218)
              0.05019314 = queryNorm
            0.64775085 = fieldWeight in 3358, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.885643 = idf(docFreq=907, maxDocs=44218)
              0.09375 = fieldNorm(doc=3358)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

0.02397386 = product of:
  0.07192158 = sum of:
    0.07192158 = weight(_text_:electronic in 5510) [ClassicSimilarity], result of:
      0.07192158 = score(doc=5510,freq=4.0), product of:
        0.19623034 = queryWeight, product of:
          3.9095051 = idf(docFreq=2409, maxDocs=44218)
          0.05019314 = queryNorm
        0.3665161 = fieldWeight in 5510, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.9095051 = idf(docFreq=2409, maxDocs=44218)
          0.046875 = fieldNorm(doc=5510)
  0.33333334 = coord(1/3)

Abstract

Explores the opportunities for libraries to contribute to the proposed global "Semantic Web." Library name and subject authority files, including work that IFLA has done related to a new view of "Universal Bibliographic Control" in the Internet environment and the work underway in the U.S. and Europe, are making a reality of the virtual international authority file on the Web. The bibliographic and authority records created according to AACR2 reflect standards for metadata that libraries have provided for years. New opportunities for using these records in the digital world are described (interoperability), including mapping with Dublin Core metadata. AACR2 recently updated Chapter 9 on Electronic Resources. That process and highlights of the changes are described, including Library of Congress' rule interpretations.

Content

Beitrag in einem Themenheft "Electronic cataloging: AACR2 and metadata for serials and monographs"

0.021840101 = product of:
  0.0655203 = sum of:
    0.0655203 = product of:
      0.1310406 = sum of:
        0.1310406 = weight(_text_:publishing in 4471) [ClassicSimilarity], result of:
          0.1310406 = score(doc=4471,freq=4.0), product of:
            0.24522576 = queryWeight, product of:
              4.885643 = idf(docFreq=907, maxDocs=44218)
              0.05019314 = queryNorm
            0.5343672 = fieldWeight in 4471, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.885643 = idf(docFreq=907, maxDocs=44218)
              0.0546875 = fieldNorm(doc=4471)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Abstract

This document describes best practice recipes for publishing vocabularies or ontologies on the Web (in RDF Schema or OWL). The features of each recipe are described in detail, so that vocabulary designers may choose the recipe best suited to their needs. Each recipe introduces general principles and an example configuration for use with an Apache HTTP server (which may be adapted to other environments). The recipes are all designed to be consistent with the architecture of the Web as currently specified, although the associated example configurations have been kept intentionally simple.

0.019106109 = product of:
  0.057318322 = sum of:
    0.057318322 = product of:
      0.114636645 = sum of:
        0.114636645 = weight(_text_:publishing in 2143) [ClassicSimilarity], result of:
          0.114636645 = score(doc=2143,freq=6.0), product of:
            0.24522576 = queryWeight, product of:
              4.885643 = idf(docFreq=907, maxDocs=44218)
              0.05019314 = queryNorm
            0.46747392 = fieldWeight in 2143, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              4.885643 = idf(docFreq=907, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2143)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Abstract

New technologies will underpin the future generation of library catalogues. To facilitate their role providing information, serving users, and fulfilling their mission as cultural heritage and memory institutions, libraries must take a technological leap; their standards and services must be transformed to those of the Semantic Web. Bibliographic Information Organization in the Semantic Web explores the technologies that may power future library catalogues, and argues the necessity of such a leap. The text introduces international bibliographic standards and models, and fundamental concepts in their representation in the context of the Semantic Web. Subsequent chapters cover bibliographic information organization, linked open data, methodologies for publishing library metadata, discussion of the wider environment (museum, archival and publishing communities) and users, followed by a conclusion.

Imprint

Oxford : Chandos Publishing

0.017715558 = product of:
  0.05314667 = sum of:
    0.05314667 = product of:
      0.15944001 = sum of:
        0.15944001 = weight(_text_:3a in 701) [ClassicSimilarity], result of:
          0.15944001 = score(doc=701,freq=2.0), product of:
            0.42553797 = queryWeight, product of:
              8.478011 = idf(docFreq=24, maxDocs=44218)
              0.05019314 = queryNorm
            0.3746787 = fieldWeight in 701, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              8.478011 = idf(docFreq=24, maxDocs=44218)
              0.03125 = fieldNorm(doc=701)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)

Content

Vgl.: http%3A%2F%2Fdigbib.ubka.uni-karlsruhe.de%2Fvolltexte%2Fdocuments%2F1627&ei=tAtYUYrBNoHKtQb3l4GYBw&usg=AFQjCNHeaxKkKU3-u54LWxMNYGXaaDLCGw&sig2=8WykXWQoDKjDSdGtAakH2Q&bvm=bv.44442042,d.Yms.

0.017649466 = product of:
  0.052948397 = sum of:
    0.052948397 = product of:
      0.10589679 = sum of:
        0.10589679 = weight(_text_:publishing in 3926) [ClassicSimilarity], result of:
          0.10589679 = score(doc=3926,freq=2.0), product of:
            0.24522576 = queryWeight, product of:
              4.885643 = idf(docFreq=907, maxDocs=44218)
              0.05019314 = queryNorm
            0.4318339 = fieldWeight in 3926, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.885643 = idf(docFreq=907, maxDocs=44218)
              0.0625 = fieldNorm(doc=3926)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Imprint

Cham : Springer International Publishing

0.01586778 = product of:
  0.047603343 = sum of:
    0.047603343 = product of:
      0.095206685 = sum of:
        0.095206685 = weight(_text_:22 in 4643) [ClassicSimilarity], result of:
          0.095206685 = score(doc=4643,freq=2.0), product of:
            0.17576782 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05019314 = queryNorm
            0.5416616 = fieldWeight in 4643, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.109375 = fieldNorm(doc=4643)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Date

22. 9.2007 15:41:14

0.015600072 = product of:
  0.046800215 = sum of:
    0.046800215 = product of:
      0.09360043 = sum of:
        0.09360043 = weight(_text_:publishing in 433) [ClassicSimilarity], result of:
          0.09360043 = score(doc=433,freq=4.0), product of:
            0.24522576 = queryWeight, product of:
              4.885643 = idf(docFreq=907, maxDocs=44218)
              0.05019314 = queryNorm
            0.38169086 = fieldWeight in 433, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.885643 = idf(docFreq=907, maxDocs=44218)
              0.0390625 = fieldNorm(doc=433)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Abstract

The modern Web has grown from a publishing place of well-structured data and HTML pages for companies and experienced users into a vivid publishing and data exchange community in which everyone can participate, both as a data consumer and as a data producer. Unavoidably, the data available on the Web became highly heterogeneous, ranging from highly structured and semistructured to highly unstructured user-generated content, reflecting different perspectives and structuring principles. The full potential of such data can only be realized by combining information from multiple sources. For instance, the knowledge that is typically embedded in monolithic applications can be outsourced and, thus, used also in other applications. Numerous systems nowadays are already actively utilizing existing content from various sources such as WordNet or Wikipedia. Some well-known examples of such systems include DBpedia, Freebase, Spock, and DBLife. A major challenge during combining and querying information from multiple heterogeneous sources is entity linkage, i.e., the ability to detect whether two pieces of information correspond to the same real-world object. This chapter introduces a novel approach for addressing the entity linkage problem for heterogeneous, uncertain, and volatile data.

0.015600072 = product of:
  0.046800215 = sum of:
    0.046800215 = product of:
      0.09360043 = sum of:
        0.09360043 = weight(_text_:publishing in 3923) [ClassicSimilarity], result of:
          0.09360043 = score(doc=3923,freq=4.0), product of:
            0.24522576 = queryWeight, product of:
              4.885643 = idf(docFreq=907, maxDocs=44218)
              0.05019314 = queryNorm
            0.38169086 = fieldWeight in 3923, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.885643 = idf(docFreq=907, maxDocs=44218)
              0.0390625 = fieldNorm(doc=3923)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Abstract

In this lecture we will discuss and introduce challenges of integrating openly available Web data and how to solve them. Firstly, while we will address this topic from the viewpoint of Semantic Web research, not all data is readily available as RDF or Linked Data, so we will give an introduction to different data formats prevalent on the Web, namely, standard formats for publishing and exchanging tabular, tree-shaped, and graph data. Secondly, not all Open Data is really completely open, so we will discuss and address issues around licences, terms of usage associated with Open Data, as well as documentation of data provenance. Thirdly, we will discuss issues connected with (meta-)data quality issues associated with Open Data on the Web and how Semantic Web techniques and vocabularies can be used to describe and remedy them. Fourth, we will address issues about searchability and integration of Open Data and discuss in how far semantic search can help to overcome these. We close with briefly summarizing further issues not covered explicitly herein, such as multi-linguality, temporal aspects (archiving, evolution, temporal querying), as well as how/whether OWL and RDFS reasoning on top of integrated open data could be help.

Imprint

Cham : Springer International Publishing

0.015600072 = product of:
  0.046800215 = sum of:
    0.046800215 = product of:
      0.09360043 = sum of:
        0.09360043 = weight(_text_:publishing in 5799) [ClassicSimilarity], result of:
          0.09360043 = score(doc=5799,freq=4.0), product of:
            0.24522576 = queryWeight, product of:
              4.885643 = idf(docFreq=907, maxDocs=44218)
              0.05019314 = queryNorm
            0.38169086 = fieldWeight in 5799, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.885643 = idf(docFreq=907, maxDocs=44218)
              0.0390625 = fieldNorm(doc=5799)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Abstract

This paper argues for making a paradigm shift in publishing and using biographical dictionaries on the web, based on Linked Data. The idea is to provide the user with enhanced reading experience of biographies by enriching contents with data linking and reasoning. In addition, versatile tooling for 1) biographical research of individual persons as well as for 2) prosopographical research on groups of people are provided. To demonstrate and evaluate the new possibilities,we present the semantic portal "BiographySampo - Finnish Biographies on theSemantic Web". The system is based on a knowledge graph extracted automatically from a collection of 13.100 textual biographies, enriched with data linking to 16 external data sources, and by harvesting external collection data from libraries, museums, and archives. The portal was released in September 2018 for free public use at: http://biografiasampo.fi.

0.015443282 = product of:
  0.046329845 = sum of:
    0.046329845 = product of:
      0.09265969 = sum of:
        0.09265969 = weight(_text_:publishing in 504) [ClassicSimilarity], result of:
          0.09265969 = score(doc=504,freq=2.0), product of:
            0.24522576 = queryWeight, product of:
              4.885643 = idf(docFreq=907, maxDocs=44218)
              0.05019314 = queryNorm
            0.37785465 = fieldWeight in 504, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.885643 = idf(docFreq=907, maxDocs=44218)
              0.0546875 = fieldNorm(doc=504)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Abstract

This article introduces the Simple Knowledge Organisation System (SKOS), a Semantic Web language for representing controlled structured vocabularies, including thesauri, classification schemes, subject heading systems and taxonomies. SKOS provides a framework for publishing thesauri, classification schemes, and subject indexes on the Web, and for applying these systems to resource collections that are part of the SemanticWeb. SemanticWeb applications may harvest and merge SKOS data, to integrate and enhances retrieval service across multiple collections (e.g. libraries). This article also describes some alternatives for integrating Semantic Web services based on the Resource Description Framework (RDF) and SKOS into a distributed enterprise architecture.

0.015443282 = product of:
  0.046329845 = sum of:
    0.046329845 = product of:
      0.09265969 = sum of:
        0.09265969 = weight(_text_:publishing in 3791) [ClassicSimilarity], result of:
          0.09265969 = score(doc=3791,freq=2.0), product of:
            0.24522576 = queryWeight, product of:
              4.885643 = idf(docFreq=907, maxDocs=44218)
              0.05019314 = queryNorm
            0.37785465 = fieldWeight in 3791, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.885643 = idf(docFreq=907, maxDocs=44218)
              0.0546875 = fieldNorm(doc=3791)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Abstract

This document provides a tutorial on how to publish Linked Data on the Web. After a general overview of the concept of Linked Data, we describe several practical recipes for publishing information as Linked Data on the Web.

0.015443282 = product of:
  0.046329845 = sum of:
    0.046329845 = product of:
      0.09265969 = sum of:
        0.09265969 = weight(_text_:publishing in 4684) [ClassicSimilarity], result of:
          0.09265969 = score(doc=4684,freq=2.0), product of:
            0.24522576 = queryWeight, product of:
              4.885643 = idf(docFreq=907, maxDocs=44218)
              0.05019314 = queryNorm
            0.37785465 = fieldWeight in 4684, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.885643 = idf(docFreq=907, maxDocs=44218)
              0.0546875 = fieldNorm(doc=4684)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Abstract

The Web Ontology Language OWL is a semantic markup language for publishing and sharing ontologies on the World Wide Web. OWL is developed as a vocabulary extension of RDF (the Resource Description Framework) and is derived from the DAML+OIL Web Ontology Language. This document contains a structured informal description of the full set of OWL language constructs and is meant to serve as a reference for OWL users who want to construct OWL ontologies.

0.015443282 = product of:
  0.046329845 = sum of:
    0.046329845 = product of:
      0.09265969 = sum of:
        0.09265969 = weight(_text_:publishing in 4695) [ClassicSimilarity], result of:
          0.09265969 = score(doc=4695,freq=2.0), product of:
            0.24522576 = queryWeight, product of:
              4.885643 = idf(docFreq=907, maxDocs=44218)
              0.05019314 = queryNorm
            0.37785465 = fieldWeight in 4695, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.885643 = idf(docFreq=907, maxDocs=44218)
              0.0546875 = fieldNorm(doc=4695)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Abstract

The Resource Description Framework (RDF) is the standard knowledge representation language for the Semantic Web, an evolution of the World Wide Web that aims to provide a well-founded infrastructure for publishing, sharing and querying structured data. This entry provides an introduction to RDF and its related vocabulary definition language RDF Schema, and explains its relationship with the OWL Web Ontology Language. Finally, it provides an overview of the historical development of RDF and related languages for Web metadata.

0.015443282 = product of:
  0.046329845 = sum of:
    0.046329845 = product of:
      0.09265969 = sum of:
        0.09265969 = weight(_text_:publishing in 3293) [ClassicSimilarity], result of:
          0.09265969 = score(doc=3293,freq=2.0), product of:
            0.24522576 = queryWeight, product of:
              4.885643 = idf(docFreq=907, maxDocs=44218)
              0.05019314 = queryNorm
            0.37785465 = fieldWeight in 3293, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.885643 = idf(docFreq=907, maxDocs=44218)
              0.0546875 = fieldNorm(doc=3293)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Abstract

Ontology engineering encompasses the method, tools and techniques used to develop ontologies. Without requiring ontologies, linked data is driving a paradigm shift, bringing benefits and drawbacks to the publishing world. Ontologies may be heavyweight, supporting deep understanding of a domain, or lightweight, suited to simple classification of concepts and more adaptable for linked data. They also vary in domain specificity, usability and reusabilty. Hybrid vocabularies drawing elements from diverse sources often suffer from internally incompatible semantics. To serve linked data purposes, ontology engineering teams require a range of skills in philosophy, computer science, web development, librarianship and domain expertise.

0.015443282 = product of:
  0.046329845 = sum of:
    0.046329845 = product of:
      0.09265969 = sum of:
        0.09265969 = weight(_text_:publishing in 3939) [ClassicSimilarity], result of:
          0.09265969 = score(doc=3939,freq=2.0), product of:
            0.24522576 = queryWeight, product of:
              4.885643 = idf(docFreq=907, maxDocs=44218)
              0.05019314 = queryNorm
            0.37785465 = fieldWeight in 3939, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.885643 = idf(docFreq=907, maxDocs=44218)
              0.0546875 = fieldNorm(doc=3939)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Imprint

Cham : Springer International Publishing

0.013600955 = product of:
  0.040802862 = sum of:
    0.040802862 = product of:
      0.081605725 = sum of:
        0.081605725 = weight(_text_:22 in 6048) [ClassicSimilarity], result of:
          0.081605725 = score(doc=6048,freq=2.0), product of:
            0.17576782 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05019314 = queryNorm
            0.46428138 = fieldWeight in 6048, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.09375 = fieldNorm(doc=6048)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Date

22. 9.2007 15:41:14

0.013600955 = product of:
  0.040802862 = sum of:
    0.040802862 = product of:
      0.081605725 = sum of:
        0.081605725 = weight(_text_:22 in 100) [ClassicSimilarity], result of:
          0.081605725 = score(doc=100,freq=2.0), product of:
            0.17576782 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05019314 = queryNorm
            0.46428138 = fieldWeight in 100, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.09375 = fieldNorm(doc=100)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Date

22. 9.2007 15:41:14

0.0132371 = product of:
  0.0397113 = sum of:
    0.0397113 = product of:
      0.0794226 = sum of:
        0.0794226 = weight(_text_:publishing in 2481) [ClassicSimilarity], result of:
          0.0794226 = score(doc=2481,freq=2.0), product of:
            0.24522576 = queryWeight, product of:
              4.885643 = idf(docFreq=907, maxDocs=44218)
              0.05019314 = queryNorm
            0.32387543 = fieldWeight in 2481, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.885643 = idf(docFreq=907, maxDocs=44218)
              0.046875 = fieldNorm(doc=2481)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Abstract

Wikis are established means for the collaborative authoring, versioning and publishing of textual articles. The Wikipedia project, for example, succeeded in creating the by far largest encyclopedia just on the basis of a wiki. Recently, several approaches have been proposed on how to extend wikis to allow the creation of structured and semantically enriched content. However, the means for creating semantically enriched structured content are already available and are, although unconsciously, even used by Wikipedia authors. In this article, we present a method for revealing this structured content by extracting information from template instances. We suggest ways to efficiently query the vast amount of extracted information (e.g. more than 8 million RDF statements for the English Wikipedia version alone), leading to astonishing query answering possibilities (such as for the title question). We analyze the quality of the extracted content, and propose strategies for quality improvements with just minor modifications of the wiki systems being currently used.