-
Speel, P.-H.; Schreiber, G.; Van Joolingen, W.; Van Heijst, G.; Beijer, G.: Conceptual modeling for knowledge-based systems (2002)
0.02
0.021361232 = product of:
0.10680616 = sum of:
0.03132058 = weight(_text_:software in 4254) [ClassicSimilarity], result of:
0.03132058 = score(doc=4254,freq=10.0), product of:
0.07989157 = queryWeight, product of:
3.9671519 = idf(docFreq=2274, maxDocs=44218)
0.02013827 = queryNorm
0.3920386 = fieldWeight in 4254, product of:
3.1622777 = tf(freq=10.0), with freq of:
10.0 = termFreq=10.0
3.9671519 = idf(docFreq=2274, maxDocs=44218)
0.03125 = fieldNorm(doc=4254)
0.03132058 = weight(_text_:software in 4254) [ClassicSimilarity], result of:
0.03132058 = score(doc=4254,freq=10.0), product of:
0.07989157 = queryWeight, product of:
3.9671519 = idf(docFreq=2274, maxDocs=44218)
0.02013827 = queryNorm
0.3920386 = fieldWeight in 4254, product of:
3.1622777 = tf(freq=10.0), with freq of:
10.0 = termFreq=10.0
3.9671519 = idf(docFreq=2274, maxDocs=44218)
0.03125 = fieldNorm(doc=4254)
0.03132058 = weight(_text_:software in 4254) [ClassicSimilarity], result of:
0.03132058 = score(doc=4254,freq=10.0), product of:
0.07989157 = queryWeight, product of:
3.9671519 = idf(docFreq=2274, maxDocs=44218)
0.02013827 = queryNorm
0.3920386 = fieldWeight in 4254, product of:
3.1622777 = tf(freq=10.0), with freq of:
10.0 = termFreq=10.0
3.9671519 = idf(docFreq=2274, maxDocs=44218)
0.03125 = fieldNorm(doc=4254)
0.012844422 = product of:
0.025688844 = sum of:
0.025688844 = weight(_text_:engineering in 4254) [ClassicSimilarity], result of:
0.025688844 = score(doc=4254,freq=2.0), product of:
0.10819342 = queryWeight, product of:
5.372528 = idf(docFreq=557, maxDocs=44218)
0.02013827 = queryNorm
0.23743443 = fieldWeight in 4254, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.372528 = idf(docFreq=557, maxDocs=44218)
0.03125 = fieldNorm(doc=4254)
0.5 = coord(1/2)
0.2 = coord(4/20)
- Abstract
- In this article, we presented knowledge-based system (KBS) development as a specific way of software engineering. What makes conceptual modeling for KBSs unique? STRENGTHS Knowledge-based system development is a very complex process. The approach in this article to clearly separate conceptual modeling from software implementation, which makes the process of KBS development feasible and manageable in a business environment. In addition, the knowledge model resulting from conceptual modeling is a deliverable in itself. For example, in knowledge management, knowledge mapping is a popular area in which graphical, high-level, business-focused knowledge models are delivered. Another strength is the ease of maintenance. Separating models and program code makes the process of updating more flexible. Last but not least, methodological approaches to KBS development have been matured, which provide a professional basis. Knowledge engineers start working in a similar way, and as a result exchange of work is possible and project planning is better manageable. WEAKNESSES The separation of conceptual modeling and KBS software implementation will take more time initially. However, reuse of models and code may speed up the separate processes considerably. In addition, the separate phases need different expertise; knowledge engineers with specific analytical skills should be assigned to conceptual modeling, whereas software engineers with specific programming skills should be assigned to software implementation. Finally, the various methodological approaches lack mature support tools. OPPORTUNITIES Reuse of various knowledge models as well as program code may bring several advantages, in improved quality of the KBSs as well as in speed to market. Separate development of conceptual vocabularies (also called dictionaries or ontologies), corporate memories, and generic domain models in an explicit form may form the basis of effective management of business-critical knowledge domains, which leads to sustainable competitive advantage.
-
Schreiber, G.; Amin, A.; Assem, M. van; Boer, V. de; Hardman, L.; Hildebrand, M.; Omelayenko, B.; Ossenbruggen, J. van; Wielemaker, J.; Wielinga, B.; Tordai, A.; Aroyoa, L.: Semantic annotation and search of cultural-heritage collections : the MultimediaN E-Culture demonstrator (2008)
0.02
0.019479921 = product of:
0.09739961 = sum of:
0.029713312 = weight(_text_:software in 4646) [ClassicSimilarity], result of:
0.029713312 = score(doc=4646,freq=4.0), product of:
0.07989157 = queryWeight, product of:
3.9671519 = idf(docFreq=2274, maxDocs=44218)
0.02013827 = queryNorm
0.3719205 = fieldWeight in 4646, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.9671519 = idf(docFreq=2274, maxDocs=44218)
0.046875 = fieldNorm(doc=4646)
0.029713312 = weight(_text_:software in 4646) [ClassicSimilarity], result of:
0.029713312 = score(doc=4646,freq=4.0), product of:
0.07989157 = queryWeight, product of:
3.9671519 = idf(docFreq=2274, maxDocs=44218)
0.02013827 = queryNorm
0.3719205 = fieldWeight in 4646, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.9671519 = idf(docFreq=2274, maxDocs=44218)
0.046875 = fieldNorm(doc=4646)
0.008259674 = product of:
0.016519347 = sum of:
0.016519347 = weight(_text_:29 in 4646) [ClassicSimilarity], result of:
0.016519347 = score(doc=4646,freq=2.0), product of:
0.070840135 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.02013827 = queryNorm
0.23319192 = fieldWeight in 4646, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.046875 = fieldNorm(doc=4646)
0.5 = coord(1/2)
0.029713312 = weight(_text_:software in 4646) [ClassicSimilarity], result of:
0.029713312 = score(doc=4646,freq=4.0), product of:
0.07989157 = queryWeight, product of:
3.9671519 = idf(docFreq=2274, maxDocs=44218)
0.02013827 = queryNorm
0.3719205 = fieldWeight in 4646, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.9671519 = idf(docFreq=2274, maxDocs=44218)
0.046875 = fieldNorm(doc=4646)
0.2 = coord(4/20)
- Abstract
- In this article we describe a SemanticWeb application for semantic annotation and search in large virtual collections of cultural-heritage objects, indexed with multiple vocabularies. During the annotation phase we harvest, enrich and align collection metadata and vocabularies. The semantic-search facilities support keyword-based queries of the graph (currently 20M triples), resulting in semantically grouped result clusters, all representing potential semantic matches of the original query. We show two sample search scenario's. The annotation and search software is open source and is already being used by third parties. All software is based on establishedWeb standards, in particular HTML/XML, CSS, RDF/OWL, SPARQL and JavaScript.
- Date
- 29. 7.2011 14:44:56
-
Schreiber, G.: Proposals for principles of knowledge engineering in the 21st century (2009)
0.00
0.0022477738 = product of:
0.044955477 = sum of:
0.044955477 = product of:
0.089910954 = sum of:
0.089910954 = weight(_text_:engineering in 1312) [ClassicSimilarity], result of:
0.089910954 = score(doc=1312,freq=2.0), product of:
0.10819342 = queryWeight, product of:
5.372528 = idf(docFreq=557, maxDocs=44218)
0.02013827 = queryNorm
0.83102053 = fieldWeight in 1312, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.372528 = idf(docFreq=557, maxDocs=44218)
0.109375 = fieldNorm(doc=1312)
0.5 = coord(1/2)
0.05 = coord(1/20)
-
Assem, M. van; Menken, M.R.; Schreiber, G.; Wielemaker, J.; Wielinga, B.: ¬A method for converting thesauri to RDF/OWL (2004)
0.00
0.0017287116 = product of:
0.017287116 = sum of:
0.0076508303 = weight(_text_:und in 4644) [ClassicSimilarity], result of:
0.0076508303 = score(doc=4644,freq=2.0), product of:
0.044633795 = queryWeight, product of:
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.02013827 = queryNorm
0.17141339 = fieldWeight in 4644, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.0546875 = fieldNorm(doc=4644)
0.009636286 = product of:
0.019272571 = sum of:
0.019272571 = weight(_text_:29 in 4644) [ClassicSimilarity], result of:
0.019272571 = score(doc=4644,freq=2.0), product of:
0.070840135 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.02013827 = queryNorm
0.27205724 = fieldWeight in 4644, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.0546875 = fieldNorm(doc=4644)
0.5 = coord(1/2)
0.1 = coord(2/20)
- Date
- 29. 7.2011 14:44:56
- Theme
- Konzeption und Anwendung des Prinzips Thesaurus
-
Assem, M. van; Gangemi, A.; Schreiber, G.: Conversion of WordNet to a standard RDF/OWL representation (2006)
0.00
0.0014817528 = product of:
0.014817528 = sum of:
0.0065578544 = weight(_text_:und in 4641) [ClassicSimilarity], result of:
0.0065578544 = score(doc=4641,freq=2.0), product of:
0.044633795 = queryWeight, product of:
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.02013827 = queryNorm
0.14692576 = fieldWeight in 4641, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.046875 = fieldNorm(doc=4641)
0.008259674 = product of:
0.016519347 = sum of:
0.016519347 = weight(_text_:29 in 4641) [ClassicSimilarity], result of:
0.016519347 = score(doc=4641,freq=2.0), product of:
0.070840135 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.02013827 = queryNorm
0.23319192 = fieldWeight in 4641, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.046875 = fieldNorm(doc=4641)
0.5 = coord(1/2)
0.1 = coord(2/20)
- Date
- 29. 7.2011 14:44:56
- Theme
- Konzeption und Anwendung des Prinzips Thesaurus
-
Assem, M. van; Malaisé, V.; Miles, A.; Schreiber, G.: ¬A method to convert thesauri to SKOS (2006)
0.00
0.0014817528 = product of:
0.014817528 = sum of:
0.0065578544 = weight(_text_:und in 4642) [ClassicSimilarity], result of:
0.0065578544 = score(doc=4642,freq=2.0), product of:
0.044633795 = queryWeight, product of:
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.02013827 = queryNorm
0.14692576 = fieldWeight in 4642, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.046875 = fieldNorm(doc=4642)
0.008259674 = product of:
0.016519347 = sum of:
0.016519347 = weight(_text_:29 in 4642) [ClassicSimilarity], result of:
0.016519347 = score(doc=4642,freq=2.0), product of:
0.070840135 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.02013827 = queryNorm
0.23319192 = fieldWeight in 4642, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.046875 = fieldNorm(doc=4642)
0.5 = coord(1/2)
0.1 = coord(2/20)
- Date
- 29. 7.2011 14:44:56
- Theme
- Konzeption und Anwendung des Prinzips Thesaurus
-
Wielinga, B.; Wielemaker, J.; Schreiber, G.; Assem, M. van: Methods for porting resources to the Semantic Web (2004)
0.00
4.1298367E-4 = product of:
0.008259674 = sum of:
0.008259674 = product of:
0.016519347 = sum of:
0.016519347 = weight(_text_:29 in 4640) [ClassicSimilarity], result of:
0.016519347 = score(doc=4640,freq=2.0), product of:
0.070840135 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.02013827 = queryNorm
0.23319192 = fieldWeight in 4640, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.046875 = fieldNorm(doc=4640)
0.5 = coord(1/2)
0.05 = coord(1/20)
- Date
- 29. 7.2011 14:44:56
-
Hollink, L.; Assem, M. van; Wang, S.; Isaac, A.; Schreiber, G.: Two variations on ontology alignment evaluation : methodological issues (2008)
0.00
4.1298367E-4 = product of:
0.008259674 = sum of:
0.008259674 = product of:
0.016519347 = sum of:
0.016519347 = weight(_text_:29 in 4645) [ClassicSimilarity], result of:
0.016519347 = score(doc=4645,freq=2.0), product of:
0.070840135 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.02013827 = queryNorm
0.23319192 = fieldWeight in 4645, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.046875 = fieldNorm(doc=4645)
0.5 = coord(1/2)
0.05 = coord(1/20)
- Date
- 29. 7.2011 14:44:56
-
Schreiber, G.; Amin, A.; Assem, M. van; Boer, V. de; Hardman, L.; Hildebrand, M.; Hollink, L.; Huang, Z.; Kersen, J. van; Niet, M. de; Omelayenko, B.; Ossenbruggen, J. van; Siebes, R.; Taekema, J.; Wielemaker, J.; Wielinga, B.: MultimediaN E-Culture demonstrator (2006)
0.00
4.1298367E-4 = product of:
0.008259674 = sum of:
0.008259674 = product of:
0.016519347 = sum of:
0.016519347 = weight(_text_:29 in 4648) [ClassicSimilarity], result of:
0.016519347 = score(doc=4648,freq=2.0), product of:
0.070840135 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.02013827 = queryNorm
0.23319192 = fieldWeight in 4648, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.046875 = fieldNorm(doc=4648)
0.5 = coord(1/2)
0.05 = coord(1/20)
- Date
- 29. 7.2011 14:44:56
