Search (8 results, page 1 of 1)

0.13019353 = product of:
  0.26038706 = sum of:
    0.04966716 = product of:
      0.14900148 = sum of:
        0.14900148 = weight(_text_:3a in 5820) [ClassicSimilarity], result of:
          0.14900148 = score(doc=5820,freq=2.0), product of:
            0.39767802 = queryWeight, product of:
              8.478011 = idf(docFreq=24, maxDocs=44218)
              0.046906993 = queryNorm
            0.3746787 = fieldWeight in 5820, 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=5820)
      0.33333334 = coord(1/3)
    0.21071991 = weight(_text_:2f in 5820) [ClassicSimilarity], result of:
      0.21071991 = score(doc=5820,freq=4.0), product of:
        0.39767802 = queryWeight, product of:
          8.478011 = idf(docFreq=24, maxDocs=44218)
          0.046906993 = queryNorm
        0.5298757 = fieldWeight in 5820, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          8.478011 = idf(docFreq=24, maxDocs=44218)
          0.03125 = fieldNorm(doc=5820)
  0.5 = coord(2/4)

Content

Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Language and Information Technologies. Vgl.: https%3A%2F%2Fwww.cs.cmu.edu%2F~cx%2Fpapers%2Fknowledge_based_text_representation.pdf&usg=AOvVaw0SaTSvhWLTh__Uz_HtOtl3.

0.09933432 = product of:
  0.19866864 = sum of:
    0.04966716 = product of:
      0.14900148 = sum of:
        0.14900148 = weight(_text_:3a in 701) [ClassicSimilarity], result of:
          0.14900148 = score(doc=701,freq=2.0), product of:
            0.39767802 = queryWeight, product of:
              8.478011 = idf(docFreq=24, maxDocs=44218)
              0.046906993 = 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)
    0.14900148 = weight(_text_:2f in 701) [ClassicSimilarity], result of:
      0.14900148 = score(doc=701,freq=2.0), product of:
        0.39767802 = queryWeight, product of:
          8.478011 = idf(docFreq=24, maxDocs=44218)
          0.046906993 = 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)
  0.5 = coord(2/4)

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.

0.022297796 = product of:
  0.04459559 = sum of:
    0.027942104 = weight(_text_:services in 5819) [ClassicSimilarity], result of:
      0.027942104 = score(doc=5819,freq=2.0), product of:
        0.17221296 = queryWeight, product of:
          3.6713707 = idf(docFreq=3057, maxDocs=44218)
          0.046906993 = queryNorm
        0.1622532 = fieldWeight in 5819, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.6713707 = idf(docFreq=3057, maxDocs=44218)
          0.03125 = fieldNorm(doc=5819)
    0.016653487 = product of:
      0.033306975 = sum of:
        0.033306975 = weight(_text_:management in 5819) [ClassicSimilarity], result of:
          0.033306975 = score(doc=5819,freq=4.0), product of:
            0.15810528 = queryWeight, product of:
              3.3706124 = idf(docFreq=4130, maxDocs=44218)
              0.046906993 = queryNorm
            0.21066327 = fieldWeight in 5819, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.3706124 = idf(docFreq=4130, maxDocs=44218)
              0.03125 = fieldNorm(doc=5819)
      0.5 = coord(1/2)
  0.5 = coord(2/4)

Abstract

Industries have adopted a standardized set of practices for developing their products. In the automotive domain, the provision of safety-compliant systems is guided by ISO 26262, a standard that specifies a set of requirements and recommendations for developing automotive safety-critical systems. For being in compliance with ISO 26262, the safety lifecycle proposed by the standard must be included in the development process of a vehicle. Besides, a safety case that shows that the system is acceptably safe has to be provided. The provision of a safety case implies the execution of a precise documentation process. This process makes sure that the work products are available and traceable. Further, the documentation management is defined in the standard as a mandatory activity and guidelines are proposed/imposed for its elaboration. It would be appropriate to point out that a well-documented safety lifecycle will provide the necessary inputs for the generation of an ISO 26262-compliant safety case. The OSLC (Open Services for Lifecycle Collaboration) standard and the maturing stack of semantic web technologies represent a promising integration platform for enabling semantic interoperability between the tools involved in the safety lifecycle. Tools for requirements, architecture, development management, among others, are expected to interact and shared data with the help of domains specifications created in OSLC. This thesis proposes the creation of an OSLC tool-chain infrastructure for sharing safety-related information, where fragments of safety information can be generated. The steps carried out during the elaboration of this master thesis consist in the identification, representation, and shaping of the RDF resources needed for the creation of a safety case. The focus of the thesis is limited to a tiny portion of the ISO 26262 left-hand side of the V-model, more exactly part 6 clause 8 of the standard: Software unit design and implementation. Regardless of the use of a restricted portion of the standard during the execution of this thesis, the findings can be extended to other parts, and the conclusions can be generalize. This master thesis is considered one of the first steps towards the provision of an OSLC-based and ISO 26262-compliant methodological approach for representing and shaping the work products resulting from the execution of the safety lifecycle, documentation required in the conformation of an ISO-compliant safety case.

0.007944062 = product of:
  0.03177625 = sum of:
    0.03177625 = product of:
      0.0635525 = sum of:
        0.0635525 = weight(_text_:22 in 3406) [ClassicSimilarity], result of:
          0.0635525 = score(doc=3406,freq=2.0), product of:
            0.1642603 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046906993 = queryNorm
            0.38690117 = fieldWeight in 3406, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.078125 = fieldNorm(doc=3406)
      0.5 = coord(1/2)
  0.25 = coord(1/4)

Date

30. 5.2010 16:22:35

0.005887897 = product of:
  0.023551589 = sum of:
    0.023551589 = product of:
      0.047103178 = sum of:
        0.047103178 = weight(_text_:management in 117) [ClassicSimilarity], result of:
          0.047103178 = score(doc=117,freq=8.0), product of:
            0.15810528 = queryWeight, product of:
              3.3706124 = idf(docFreq=4130, maxDocs=44218)
              0.046906993 = queryNorm
            0.29792285 = fieldWeight in 117, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              3.3706124 = idf(docFreq=4130, maxDocs=44218)
              0.03125 = fieldNorm(doc=117)
      0.5 = coord(1/2)
  0.25 = coord(1/4)

Abstract

Information management in corporate environments is a growing problem as companies' information assets grow and their need to use them in their operations. Several management models have been practiced with application on the most diverse fronts, practices that integrate the so-called Enterprise Content Management. This study proposes a conceptual model of semantic corporate information ecosystem, based on the Universal Document Model proposed by Dagobert Soergel. It focuses on unstructured information objects, especially multimedia, increasingly used in corporate environments, adding semantics and expanding their recovery potential in the composition and reuse of dynamic documents on demand. The proposed model considers stable elements in the organizational environment, such as actors, processes, business metadata and information objects, as well as some basic infrastructures of the corporate information environment. The main objective is to establish a conceptual model that adds semantic intelligence to information assets, leveraging pre-existing infrastructure in organizations, integrating and relating objects to other objects, actors and business processes. The approach methodology considered the state of the art of Information Organization, Representation and Retrieval, Organizational Content Management and Semantic Web technologies, in the scientific literature, as bases for the establishment of an integrative conceptual model. Therefore, the research will be qualitative and exploratory. The predicted steps of the model are: Environment, Data Type and Source Definition, Data Distillation, Metadata Enrichment, and Storage. As a result, in theoretical terms the extended model allows to process heterogeneous and unstructured data according to the established cut-outs and through the processes listed above, allowing value creation in the composition of dynamic information objects, with semantic aggregations to metadata.

0.004163372 = product of:
  0.016653487 = sum of:
    0.016653487 = product of:
      0.033306975 = sum of:
        0.033306975 = weight(_text_:management in 4728) [ClassicSimilarity], result of:
          0.033306975 = score(doc=4728,freq=4.0), product of:
            0.15810528 = queryWeight, product of:
              3.3706124 = idf(docFreq=4130, maxDocs=44218)
              0.046906993 = queryNorm
            0.21066327 = fieldWeight in 4728, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.3706124 = idf(docFreq=4130, maxDocs=44218)
              0.03125 = fieldNorm(doc=4728)
      0.5 = coord(1/2)
  0.25 = coord(1/4)

Abstract

The amount and complexity of information available in a digital form is already huge and new information is being produced every day. Retrieving information relevant to address a particular need becomes a significant issue. This work utilizes knowledge organization systems (KOS), such as thesauri and ontologies and applies information extraction (IE) and computational linguistics (CL) techniques to organize, manage and retrieve information stored in digital collections in the agricultural domain. Two real world applications of the approach have been developed and are available and actively used by the public. An ontology is used to manage the Water Conservation Digital Library holding a dynamic collection of various types of digital resources in the domain of urban water conservation in Florida, USA. The ontology based back-end powers a fully operational web interface, available at http://library.conservefloridawater.org. The system has demonstrated numerous benefits of the ontology application, including accurate retrieval of resources, information sharing and reuse, and has proved to effectively facilitate information management. The major difficulty encountered with the approach is that large and dynamic number of concepts makes it difficult to keep the ontology consistent and to accurately catalog resources manually. To address the aforementioned issues, a combination of IE and CL techniques, such as Vector Space Model and probabilistic parsing, with the use of Agricultural Thesaurus were adapted to automatically extract concepts important for each of the texts in the Best Management Practices (BMP) Publication Library--a collection of documents in the domain of agricultural BMPs in Florida available at http://lyra.ifas.ufl.edu/LIB. A new approach of domain-specific concept discovery with the use of Internet search engine was developed. Initial evaluation of the results indicates significant improvement in precision of information extraction. The approach presented in this work focuses on problems unique to agriculture and natural resources domain, such as domain specific concepts and vocabularies, but should be applicable to any collection of texts in digital format. It may be of potential interest for anyone who needs to effectively manage a collection of digital resources.

0.003972031 = product of:
  0.015888125 = sum of:
    0.015888125 = product of:
      0.03177625 = sum of:
        0.03177625 = weight(_text_:22 in 1670) [ClassicSimilarity], result of:
          0.03177625 = score(doc=1670,freq=2.0), product of:
            0.1642603 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046906993 = queryNorm
            0.19345059 = fieldWeight in 1670, 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=1670)
      0.5 = coord(1/2)
  0.25 = coord(1/4)

Date

26. 9.2006 21:00:22

0.0031776251 = product of:
  0.0127105005 = sum of:
    0.0127105005 = product of:
      0.025421001 = sum of:
        0.025421001 = weight(_text_:22 in 4399) [ClassicSimilarity], result of:
          0.025421001 = score(doc=4399,freq=2.0), product of:
            0.1642603 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046906993 = queryNorm
            0.15476047 = fieldWeight in 4399, 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=4399)
      0.5 = coord(1/2)
  0.25 = coord(1/4)

Date

20. 1.2015 18:30:22