-
Thenmalar, S.; Geetha, T.V.: Enhanced ontology-based indexing and searching (2014)
0.06
0.057056256 = sum of:
0.010519581 = product of:
0.042078324 = sum of:
0.042078324 = weight(_text_:authors in 1633) [ClassicSimilarity], result of:
0.042078324 = score(doc=1633,freq=2.0), product of:
0.2386896 = queryWeight, product of:
4.558814 = idf(docFreq=1258, maxDocs=44218)
0.052357826 = queryNorm
0.17628889 = fieldWeight in 1633, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.558814 = idf(docFreq=1258, maxDocs=44218)
0.02734375 = fieldNorm(doc=1633)
0.25 = coord(1/4)
0.046536677 = sum of:
0.021708505 = weight(_text_:u in 1633) [ClassicSimilarity], result of:
0.021708505 = score(doc=1633,freq=2.0), product of:
0.17144279 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.052357826 = queryNorm
0.12662244 = fieldWeight in 1633, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.02734375 = fieldNorm(doc=1633)
0.02482817 = weight(_text_:22 in 1633) [ClassicSimilarity], result of:
0.02482817 = score(doc=1633,freq=2.0), product of:
0.1833482 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.052357826 = queryNorm
0.1354154 = fieldWeight in 1633, 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=1633)
- Abstract
- Purpose - The purpose of this paper is to improve the conceptual-based search by incorporating structural ontological information such as concepts and relations. Generally, Semantic-based information retrieval aims to identify relevant information based on the meanings of the query terms or on the context of the terms and the performance of semantic information retrieval is carried out through standard measures-precision and recall. Higher precision leads to the (meaningful) relevant documents obtained and lower recall leads to the less coverage of the concepts. Design/methodology/approach - In this paper, the authors enhance the existing ontology-based indexing proposed by Kohler et al., by incorporating sibling information to the index. The index designed by Kohler et al., contains only super and sub-concepts from the ontology. In addition, in our approach, we focus on two tasks; query expansion and ranking of the expanded queries, to improve the efficiency of the ontology-based search. The aforementioned tasks make use of ontological concepts, and relations existing between those concepts so as to obtain semantically more relevant search results for a given query. Findings - The proposed ontology-based indexing technique is investigated by analysing the coverage of concepts that are being populated in the index. Here, we introduce a new measure called index enhancement measure, to estimate the coverage of ontological concepts being indexed. We have evaluated the ontology-based search for the tourism domain with the tourism documents and tourism-specific ontology. The comparison of search results based on the use of ontology "with and without query expansion" is examined to estimate the efficiency of the proposed query expansion task. The ranking is compared with the ORank system to evaluate the performance of our ontology-based search. From these analyses, the ontology-based search results shows better recall when compared to the other concept-based search systems. The mean average precision of the ontology-based search is found to be 0.79 and the recall is found to be 0.65, the ORank system has the mean average precision of 0.62 and the recall is found to be 0.51, while the concept-based search has the mean average precision of 0.56 and the recall is found to be 0.42. Practical implications - When the concept is not present in the domain-specific ontology, the concept cannot be indexed. When the given query term is not available in the ontology then the term-based results are retrieved. Originality/value - In addition to super and sub-concepts, we incorporate the concepts present in same level (siblings) to the ontological index. The structural information from the ontology is determined for the query expansion. The ranking of the documents depends on the type of the query (single concept query, multiple concept queries and concept with relation queries) and the ontological relations that exists in the query and the documents. With this ontological structural information, the search results showed us better coverage of concepts with respect to the query.
- Date
- 20. 1.2015 18:30:22
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval
-
OWL Web Ontology Language Test Cases (2004)
0.05
0.05318477 = product of:
0.10636954 = sum of:
0.10636954 = sum of:
0.04961944 = weight(_text_:u in 4685) [ClassicSimilarity], result of:
0.04961944 = score(doc=4685,freq=2.0), product of:
0.17144279 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.052357826 = queryNorm
0.28942272 = fieldWeight in 4685, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.0625 = fieldNorm(doc=4685)
0.056750104 = weight(_text_:22 in 4685) [ClassicSimilarity], result of:
0.056750104 = score(doc=4685,freq=2.0), product of:
0.1833482 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.052357826 = queryNorm
0.30952093 = fieldWeight in 4685, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0625 = fieldNorm(doc=4685)
0.5 = coord(1/2)
- Date
- 14. 8.2011 13:33:22
- Editor
- Carroll, J.J. u. J. de Roo
-
Priss, U.: Faceted information representation (2000)
0.05
0.046536677 = product of:
0.09307335 = sum of:
0.09307335 = sum of:
0.04341701 = weight(_text_:u in 5095) [ClassicSimilarity], result of:
0.04341701 = score(doc=5095,freq=2.0), product of:
0.17144279 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.052357826 = queryNorm
0.25324488 = fieldWeight in 5095, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.0546875 = fieldNorm(doc=5095)
0.04965634 = weight(_text_:22 in 5095) [ClassicSimilarity], result of:
0.04965634 = score(doc=5095,freq=2.0), product of:
0.1833482 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.052357826 = queryNorm
0.2708308 = fieldWeight in 5095, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0546875 = fieldNorm(doc=5095)
0.5 = coord(1/2)
- Date
- 22. 1.2016 17:47:06
-
Knorz, G.; Rein, B.: Semantische Suche in einer Hochschulontologie (2005)
0.05
0.046536677 = product of:
0.09307335 = sum of:
0.09307335 = sum of:
0.04341701 = weight(_text_:u in 1852) [ClassicSimilarity], result of:
0.04341701 = score(doc=1852,freq=2.0), product of:
0.17144279 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.052357826 = queryNorm
0.25324488 = fieldWeight in 1852, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.0546875 = fieldNorm(doc=1852)
0.04965634 = weight(_text_:22 in 1852) [ClassicSimilarity], result of:
0.04965634 = score(doc=1852,freq=2.0), product of:
0.1833482 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.052357826 = queryNorm
0.2708308 = fieldWeight in 1852, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0546875 = fieldNorm(doc=1852)
0.5 = coord(1/2)
- Date
- 11. 2.2011 18:22:58
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval
-
Knorz, G.; Rein, B.: Semantische Suche in einer Hochschulontologie : Ontologie-basiertes Information-Filtering und -Retrieval mit relationalen Datenbanken (2005)
0.05
0.046536677 = product of:
0.09307335 = sum of:
0.09307335 = sum of:
0.04341701 = weight(_text_:u in 4324) [ClassicSimilarity], result of:
0.04341701 = score(doc=4324,freq=2.0), product of:
0.17144279 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.052357826 = queryNorm
0.25324488 = fieldWeight in 4324, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.0546875 = fieldNorm(doc=4324)
0.04965634 = weight(_text_:22 in 4324) [ClassicSimilarity], result of:
0.04965634 = score(doc=4324,freq=2.0), product of:
0.1833482 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.052357826 = queryNorm
0.2708308 = fieldWeight in 4324, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0546875 = fieldNorm(doc=4324)
0.5 = coord(1/2)
- Date
- 11. 2.2011 18:22:25
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval
-
Boteram, F.: Semantische Relationen in Dokumentationssprachen : vom Thesaurus zum semantischen Netz (2010)
0.05
0.046536677 = product of:
0.09307335 = sum of:
0.09307335 = sum of:
0.04341701 = weight(_text_:u in 4792) [ClassicSimilarity], result of:
0.04341701 = score(doc=4792,freq=2.0), product of:
0.17144279 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.052357826 = queryNorm
0.25324488 = fieldWeight in 4792, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.0546875 = fieldNorm(doc=4792)
0.04965634 = weight(_text_:22 in 4792) [ClassicSimilarity], result of:
0.04965634 = score(doc=4792,freq=2.0), product of:
0.1833482 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.052357826 = queryNorm
0.2708308 = fieldWeight in 4792, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0546875 = fieldNorm(doc=4792)
0.5 = coord(1/2)
- Source
- Wissensspeicher in digitalen Räumen: Nachhaltigkeit - Verfügbarkeit - semantische Interoperabilität. Proceedings der 11. Tagung der Deutschen Sektion der Internationalen Gesellschaft für Wissensorganisation, Konstanz, 20. bis 22. Februar 2008. Hrsg.: J. Sieglerschmidt u. H.P.Ohly
-
Priss, U.: Faceted knowledge representation (1999)
0.05
0.046536677 = product of:
0.09307335 = sum of:
0.09307335 = sum of:
0.04341701 = weight(_text_:u in 2654) [ClassicSimilarity], result of:
0.04341701 = score(doc=2654,freq=2.0), product of:
0.17144279 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.052357826 = queryNorm
0.25324488 = fieldWeight in 2654, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.0546875 = fieldNorm(doc=2654)
0.04965634 = weight(_text_:22 in 2654) [ClassicSimilarity], result of:
0.04965634 = score(doc=2654,freq=2.0), product of:
0.1833482 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.052357826 = queryNorm
0.2708308 = fieldWeight in 2654, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0546875 = fieldNorm(doc=2654)
0.5 = coord(1/2)
- Date
- 22. 1.2016 17:30:31
-
Hohmann, G.: ¬Die Anwendung des CIDOC-CRM für die semantische Wissensrepräsentation in den Kulturwissenschaften (2010)
0.04
0.039888576 = product of:
0.07977715 = sum of:
0.07977715 = sum of:
0.037214577 = weight(_text_:u in 4011) [ClassicSimilarity], result of:
0.037214577 = score(doc=4011,freq=2.0), product of:
0.17144279 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.052357826 = queryNorm
0.21706703 = fieldWeight in 4011, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.046875 = fieldNorm(doc=4011)
0.042562578 = weight(_text_:22 in 4011) [ClassicSimilarity], result of:
0.042562578 = score(doc=4011,freq=2.0), product of:
0.1833482 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.052357826 = queryNorm
0.23214069 = fieldWeight in 4011, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=4011)
0.5 = coord(1/2)
- Source
- Wissensspeicher in digitalen Räumen: Nachhaltigkeit - Verfügbarkeit - semantische Interoperabilität. Proceedings der 11. Tagung der Deutschen Sektion der Internationalen Gesellschaft für Wissensorganisation, Konstanz, 20. bis 22. Februar 2008. Hrsg.: J. Sieglerschmidt u. H.P.Ohly
-
Semenova, E.: Ontologie als Begriffssystem : Theoretische Überlegungen und ihre praktische Umsetzung bei der Entwicklung einer Ontologie der Wissenschaftsdisziplinen (2010)
0.04
0.039888576 = product of:
0.07977715 = sum of:
0.07977715 = sum of:
0.037214577 = weight(_text_:u in 4095) [ClassicSimilarity], result of:
0.037214577 = score(doc=4095,freq=2.0), product of:
0.17144279 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.052357826 = queryNorm
0.21706703 = fieldWeight in 4095, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.046875 = fieldNorm(doc=4095)
0.042562578 = weight(_text_:22 in 4095) [ClassicSimilarity], result of:
0.042562578 = score(doc=4095,freq=2.0), product of:
0.1833482 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.052357826 = queryNorm
0.23214069 = fieldWeight in 4095, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=4095)
0.5 = coord(1/2)
- Source
- Wissensspeicher in digitalen Räumen: Nachhaltigkeit - Verfügbarkeit - semantische Interoperabilität. Proceedings der 11. Tagung der Deutschen Sektion der Internationalen Gesellschaft für Wissensorganisation, Konstanz, 20. bis 22. Februar 2008. Hrsg.: J. Sieglerschmidt u. H.P.Ohly
-
Järvelin, K.; Kristensen, J.; Niemi, T.; Sormunen, E.; Keskustalo, H.: ¬A deductive data model for query expansion (1996)
0.04
0.039888576 = product of:
0.07977715 = sum of:
0.07977715 = sum of:
0.037214577 = weight(_text_:u in 2230) [ClassicSimilarity], result of:
0.037214577 = score(doc=2230,freq=2.0), product of:
0.17144279 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.052357826 = queryNorm
0.21706703 = fieldWeight in 2230, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.046875 = fieldNorm(doc=2230)
0.042562578 = weight(_text_:22 in 2230) [ClassicSimilarity], result of:
0.042562578 = score(doc=2230,freq=2.0), product of:
0.1833482 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.052357826 = queryNorm
0.23214069 = fieldWeight in 2230, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=2230)
0.5 = coord(1/2)
- Source
- Proceedings of the 19th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval (ACM SIGIR '96), Zürich, Switzerland, August 18-22, 1996. Eds.: H.P. Frei et al
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval
-
Priss, U.: Description logic and faceted knowledge representation (1999)
0.04
0.039888576 = product of:
0.07977715 = sum of:
0.07977715 = sum of:
0.037214577 = weight(_text_:u in 2655) [ClassicSimilarity], result of:
0.037214577 = score(doc=2655,freq=2.0), product of:
0.17144279 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.052357826 = queryNorm
0.21706703 = fieldWeight in 2655, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.046875 = fieldNorm(doc=2655)
0.042562578 = weight(_text_:22 in 2655) [ClassicSimilarity], result of:
0.042562578 = score(doc=2655,freq=2.0), product of:
0.1833482 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.052357826 = queryNorm
0.23214069 = fieldWeight in 2655, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=2655)
0.5 = coord(1/2)
- Date
- 22. 1.2016 17:30:31
-
Beppler, F.D.; Fonseca, F.T.; Pacheco, R.C.S.: Hermeneus: an architecture for an ontology-enabled information retrieval (2008)
0.04
0.039888576 = product of:
0.07977715 = sum of:
0.07977715 = sum of:
0.037214577 = weight(_text_:u in 3261) [ClassicSimilarity], result of:
0.037214577 = score(doc=3261,freq=2.0), product of:
0.17144279 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.052357826 = queryNorm
0.21706703 = fieldWeight in 3261, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.046875 = fieldNorm(doc=3261)
0.042562578 = weight(_text_:22 in 3261) [ClassicSimilarity], result of:
0.042562578 = score(doc=3261,freq=2.0), product of:
0.1833482 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.052357826 = queryNorm
0.23214069 = fieldWeight in 3261, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=3261)
0.5 = coord(1/2)
- Date
- 28.11.2016 12:43:22
- Source
- http://www.personal.psu.edu/faculty/f/u/fuf1/hermeneus/Hermeneus_architecture.pdf
-
Sperber, W.; Ion, P.D.F.: Content analysis and classification in mathematics (2011)
0.04
0.036640856 = sum of:
0.018033568 = product of:
0.07213427 = sum of:
0.07213427 = weight(_text_:authors in 4818) [ClassicSimilarity], result of:
0.07213427 = score(doc=4818,freq=2.0), product of:
0.2386896 = queryWeight, product of:
4.558814 = idf(docFreq=1258, maxDocs=44218)
0.052357826 = queryNorm
0.30220953 = fieldWeight in 4818, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.558814 = idf(docFreq=1258, maxDocs=44218)
0.046875 = fieldNorm(doc=4818)
0.25 = coord(1/4)
0.018607289 = product of:
0.037214577 = sum of:
0.037214577 = weight(_text_:u in 4818) [ClassicSimilarity], result of:
0.037214577 = score(doc=4818,freq=2.0), product of:
0.17144279 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.052357826 = queryNorm
0.21706703 = fieldWeight in 4818, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.046875 = fieldNorm(doc=4818)
0.5 = coord(1/2)
- Abstract
- The number of publications in mathematics increases faster each year. Presently far more than 100,000 mathematically relevant journal articles and books are published annually. Efficient and high-quality content analysis of this material is important for mathematical bibliographic services such as ZBMath or MathSciNet. Content analysis has different facets and levels: classification, keywords, abstracts and reviews, and (in the future) formula analysis. It is the opinion of the authors that the different levels have to be enhanced and combined using the methods and technology of the Semantic Web. In the presentation, the problems and deficits of the existing methods and tools, the state of the art and current activities are discussed. As a first step, the Mathematical Subject Classification Scheme (MSC), has been encoded with Simple Knowledge Organization System (SKOS) and Resource Description Framework (RDF) at its recent revision to MSC2010. The use of SKOS principally opens new possibilities for the enrichment and wider deployment of this classification scheme and for machine-based content analysis of mathematical publications.
- Source
- Classification and ontology: formal approaches and access to knowledge: proceedings of the International UDC Seminar, 19-20 September 2011, The Hague, The Netherlands. Eds.: A. Slavic u. E. Civallero
-
Zhitomirsky-Geffet, M.; Bar-Ilan, J.: Towards maximal unification of semantically diverse ontologies for controversial domains (2014)
0.04
0.035010897 = sum of:
0.020823373 = product of:
0.08329349 = sum of:
0.08329349 = weight(_text_:authors in 1634) [ClassicSimilarity], result of:
0.08329349 = score(doc=1634,freq=6.0), product of:
0.2386896 = queryWeight, product of:
4.558814 = idf(docFreq=1258, maxDocs=44218)
0.052357826 = queryNorm
0.34896153 = fieldWeight in 1634, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
4.558814 = idf(docFreq=1258, maxDocs=44218)
0.03125 = fieldNorm(doc=1634)
0.25 = coord(1/4)
0.014187526 = product of:
0.028375052 = sum of:
0.028375052 = weight(_text_:22 in 1634) [ClassicSimilarity], result of:
0.028375052 = score(doc=1634,freq=2.0), product of:
0.1833482 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.052357826 = queryNorm
0.15476047 = fieldWeight in 1634, 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=1634)
0.5 = coord(1/2)
- Abstract
- Purpose - Ontologies are prone to wide semantic variability due to subjective points of view of their composers. The purpose of this paper is to propose a new approach for maximal unification of diverse ontologies for controversial domains by their relations. Design/methodology/approach - Effective matching or unification of multiple ontologies for a specific domain is crucial for the success of many semantic web applications, such as semantic information retrieval and organization, document tagging, summarization and search. To this end, numerous automatic and semi-automatic techniques were proposed in the past decade that attempt to identify similar entities, mostly classes, in diverse ontologies for similar domains. Apparently, matching individual entities cannot result in full integration of ontologies' semantics without matching their inter-relations with all other-related classes (and instances). However, semantic matching of ontological relations still constitutes a major research challenge. Therefore, in this paper the authors propose a new paradigm for assessment of maximal possible matching and unification of ontological relations. To this end, several unification rules for ontological relations were devised based on ontological reference rules, and lexical and textual entailment. These rules were semi-automatically implemented to extend a given ontology with semantically matching relations from another ontology for a similar domain. Then, the ontologies were unified through these similar pairs of relations. The authors observe that these rules can be also facilitated to reveal the contradictory relations in different ontologies. Findings - To assess the feasibility of the approach two experiments were conducted with different sets of multiple personal ontologies on controversial domains constructed by trained subjects. The results for about 50 distinct ontology pairs demonstrate a good potential of the methodology for increasing inter-ontology agreement. Furthermore, the authors show that the presented methodology can lead to a complete unification of multiple semantically heterogeneous ontologies. Research limitations/implications - This is a conceptual study that presents a new approach for semantic unification of ontologies by a devised set of rules along with the initial experimental evidence of its feasibility and effectiveness. However, this methodology has to be fully automatically implemented and tested on a larger dataset in future research. Practical implications - This result has implication for semantic search, since a richer ontology, comprised of multiple aspects and viewpoints of the domain of knowledge, enhances discoverability and improves search results. Originality/value - To the best of the knowledge, this is the first study to examine and assess the maximal level of semantic relation-based ontology unification.
- Date
- 20. 1.2015 18:30:22
-
Hocker, J.; Schindler, C.; Rittberger, M.: Participatory design for ontologies : a case study of an open science ontology for qualitative coding schemas (2020)
0.04
0.035010897 = sum of:
0.020823373 = product of:
0.08329349 = sum of:
0.08329349 = weight(_text_:authors in 179) [ClassicSimilarity], result of:
0.08329349 = score(doc=179,freq=6.0), product of:
0.2386896 = queryWeight, product of:
4.558814 = idf(docFreq=1258, maxDocs=44218)
0.052357826 = queryNorm
0.34896153 = fieldWeight in 179, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
4.558814 = idf(docFreq=1258, maxDocs=44218)
0.03125 = fieldNorm(doc=179)
0.25 = coord(1/4)
0.014187526 = product of:
0.028375052 = sum of:
0.028375052 = weight(_text_:22 in 179) [ClassicSimilarity], result of:
0.028375052 = score(doc=179,freq=2.0), product of:
0.1833482 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.052357826 = queryNorm
0.15476047 = fieldWeight in 179, 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=179)
0.5 = coord(1/2)
- Abstract
- Purpose The open science movement calls for transparent and retraceable research processes. While infrastructures to support these practices in qualitative research are lacking, the design needs to consider different approaches and workflows. The paper bases on the definition of ontologies as shared conceptualizations of knowledge (Borst, 1999). The authors argue that participatory design is a good way to create these shared conceptualizations by giving domain experts and future users a voice in the design process via interviews, workshops and observations. Design/methodology/approach This paper presents a novel approach for creating ontologies in the field of open science using participatory design. As a case study the creation of an ontology for qualitative coding schemas is presented. Coding schemas are an important result of qualitative research, and reuse can yield great potential for open science making qualitative research more transparent, enhance sharing of coding schemas and teaching of qualitative methods. The participatory design process consisted of three parts: a requirement analysis using interviews and an observation, a design phase accompanied by interviews and an evaluation phase based on user tests as well as interviews. Findings The research showed several positive outcomes due to participatory design: higher commitment of users, mutual learning, high quality feedback and better quality of the ontology. However, there are two obstacles in this approach: First, contradictive answers by the interviewees, which needs to be balanced; second, this approach takes more time due to interview planning and analysis. Practical implications The implication of the paper is in the long run to decentralize the design of open science infrastructures and to involve parties affected on several levels. Originality/value In ontology design, several methods exist by using user-centered design or participatory design doing workshops. In this paper, the authors outline the potentials for participatory design using mainly interviews in creating an ontology for open science. The authors focus on close contact to researchers in order to build the ontology upon the expert's knowledge.
- Date
- 20. 1.2015 18:30:22
-
Kless, D.: Erstellung eines allgemeinen Standards zur Wissensorganisation : Nutzen, Möglichkeiten, Herausforderungen, Wege (2010)
0.03
0.033240482 = product of:
0.066480964 = sum of:
0.066480964 = sum of:
0.03101215 = weight(_text_:u in 4422) [ClassicSimilarity], result of:
0.03101215 = score(doc=4422,freq=2.0), product of:
0.17144279 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.052357826 = queryNorm
0.1808892 = fieldWeight in 4422, 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=4422)
0.035468817 = weight(_text_:22 in 4422) [ClassicSimilarity], result of:
0.035468817 = score(doc=4422,freq=2.0), product of:
0.1833482 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.052357826 = queryNorm
0.19345059 = fieldWeight in 4422, 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=4422)
0.5 = coord(1/2)
- Source
- Wissensspeicher in digitalen Räumen: Nachhaltigkeit - Verfügbarkeit - semantische Interoperabilität. Proceedings der 11. Tagung der Deutschen Sektion der Internationalen Gesellschaft für Wissensorganisation, Konstanz, 20. bis 22. Februar 2008. Hrsg.: J. Sieglerschmidt u. H.P.Ohly
-
Dobrev, P.; Kalaydjiev, O.; Angelova, G.: From conceptual structures to semantic interoperability of content (2007)
0.03
0.033240482 = product of:
0.066480964 = sum of:
0.066480964 = sum of:
0.03101215 = weight(_text_:u in 4607) [ClassicSimilarity], result of:
0.03101215 = score(doc=4607,freq=2.0), product of:
0.17144279 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.052357826 = queryNorm
0.1808892 = fieldWeight in 4607, 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=4607)
0.035468817 = weight(_text_:22 in 4607) [ClassicSimilarity], result of:
0.035468817 = score(doc=4607,freq=2.0), product of:
0.1833482 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.052357826 = queryNorm
0.19345059 = fieldWeight in 4607, 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=4607)
0.5 = coord(1/2)
- Source
- Conceptual structures: knowledge architectures for smart applications: 15th International Conference on Conceptual Structures, ICCS 2007, Sheffield, UK, July 22 - 27, 2007 ; proceedings. Eds.: U. Priss u.a
-
Bringsjord, S.; Clark, M.; Taylor, J.: Sophisticated knowledge representation and reasoning requires philosophy (2014)
0.03
0.033240482 = product of:
0.066480964 = sum of:
0.066480964 = sum of:
0.03101215 = weight(_text_:u in 3403) [ClassicSimilarity], result of:
0.03101215 = score(doc=3403,freq=2.0), product of:
0.17144279 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.052357826 = queryNorm
0.1808892 = fieldWeight in 3403, 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=3403)
0.035468817 = weight(_text_:22 in 3403) [ClassicSimilarity], result of:
0.035468817 = score(doc=3403,freq=2.0), product of:
0.1833482 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.052357826 = queryNorm
0.19345059 = fieldWeight in 3403, 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=3403)
0.5 = coord(1/2)
- Date
- 9. 2.2017 19:22:14
- Source
- Philosophy, computing and information science. Eds.: R. Hagengruber u. U.V. Riss
-
Madalli, D.P.; Chatterjee, U.; Dutta, B.: ¬An analytical approach to building a core ontology for food (2017)
0.03
0.033228233 = sum of:
0.020823373 = product of:
0.08329349 = sum of:
0.08329349 = weight(_text_:authors in 3362) [ClassicSimilarity], result of:
0.08329349 = score(doc=3362,freq=6.0), product of:
0.2386896 = queryWeight, product of:
4.558814 = idf(docFreq=1258, maxDocs=44218)
0.052357826 = queryNorm
0.34896153 = fieldWeight in 3362, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
4.558814 = idf(docFreq=1258, maxDocs=44218)
0.03125 = fieldNorm(doc=3362)
0.25 = coord(1/4)
0.01240486 = product of:
0.02480972 = sum of:
0.02480972 = weight(_text_:u in 3362) [ClassicSimilarity], result of:
0.02480972 = score(doc=3362,freq=2.0), product of:
0.17144279 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.052357826 = queryNorm
0.14471136 = fieldWeight in 3362, 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=3362)
0.5 = coord(1/2)
- Abstract
- Purpose The purpose of this paper is to demonstrate the construction of a core ontology for food. To construct the core ontology, the authors propose here an approach called, yet another methodology for ontology plus (YAMO+). The goal is to exhibit the construction of a core ontology for a domain, which can be further extended and converted into application ontologies. Design/methodology/approach To motivate the construction of the core ontology for food, the authors have first articulated a set of application scenarios. The idea is that the constructed core ontology can be used to build application-specific ontologies for those scenarios. As part of the developmental approach to core ontology, the authors have proposed a methodology called YAMO+. It is designed following the theory of analytico-synthetic classification. YAMO+ is generic in nature and can be applied to build core ontologies for any domain. Findings Construction of a core ontology needs a thorough understanding of the domain and domain requirements. There are various challenges involved in constructing a core ontology as discussed in this paper. The proposed approach has proven to be sturdy enough to face the challenges that the construction of a core ontology poses. It is observed that core ontology is amenable to conversion to an application ontology. Practical implications The constructed core ontology for domain food can be readily used for developing application ontologies related to food. The proposed methodology YAMO+ can be applied to build core ontologies for any domain. Originality/value As per the knowledge, the proposed approach is the first attempt based on the study of the state of the art literature, in terms of, a formal approach to the design of a core ontology. Also, the constructed core ontology for food is the first one as there is no such ontology available on the web for domain food.
-
Zeng, Q.; Yu, M.; Yu, W.; Xiong, J.; Shi, Y.; Jiang, M.: Faceted hierarchy : a new graph type to organize scientific concepts and a construction method (2019)
0.03
0.03118429 = product of:
0.06236858 = sum of:
0.06236858 = product of:
0.24947432 = sum of:
0.24947432 = weight(_text_:3a in 400) [ClassicSimilarity], result of:
0.24947432 = score(doc=400,freq=2.0), product of:
0.44389024 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.052357826 = queryNorm
0.56201804 = fieldWeight in 400, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
8.478011 = idf(docFreq=24, maxDocs=44218)
0.046875 = fieldNorm(doc=400)
0.25 = coord(1/4)
0.5 = coord(1/2)
- Content
- Vgl.: https%3A%2F%2Faclanthology.org%2FD19-5317.pdf&usg=AOvVaw0ZZFyq5wWTtNTvNkrvjlGA.
