-
Ferreira, R.S.; Graça Pimentel, M. de; Cristo, M.: ¬A wikification prediction model based on the combination of latent, dyadic, and monadic features (2018)
0.02
0.0236423 = product of:
0.03546345 = sum of:
0.012415992 = weight(_text_:a in 4119) [ClassicSimilarity], result of:
0.012415992 = score(doc=4119,freq=28.0), product of:
0.05209492 = queryWeight, product of:
1.153047 = idf(docFreq=37942, maxDocs=44218)
0.045180224 = queryNorm
0.23833402 = fieldWeight in 4119, product of:
5.2915025 = tf(freq=28.0), with freq of:
28.0 = termFreq=28.0
1.153047 = idf(docFreq=37942, maxDocs=44218)
0.0390625 = fieldNorm(doc=4119)
0.023047457 = product of:
0.046094913 = sum of:
0.046094913 = weight(_text_:de in 4119) [ClassicSimilarity], result of:
0.046094913 = score(doc=4119,freq=2.0), product of:
0.19416152 = queryWeight, product of:
4.297489 = idf(docFreq=1634, maxDocs=44218)
0.045180224 = queryNorm
0.23740499 = fieldWeight in 4119, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.297489 = idf(docFreq=1634, maxDocs=44218)
0.0390625 = fieldNorm(doc=4119)
0.5 = coord(1/2)
0.6666667 = coord(2/3)
- Abstract
- Considering repositories of web documents that are semantically linked and created in a collaborative fashion, as in the case of Wikipedia, a key problem faced by content providers is the placement of links in the articles. These links must support user navigation and provide a deeper semantic interpretation of the content. Current wikification methods exploit machine learning techniques to capture characteristics of the concepts and its associations. In previous work, we proposed a preliminary prediction model combining traditional predictors with a latent component which captures the concept graph topology by means of matrix factorization. In this work, we provide a detailed description of our method and a deeper comparison with a state-of-the-art wikification method using a sample of Wikipedia and report a gain up to 13% in F1 score. We also provide a comprehensive analysis of the model performance showing the importance of the latent predictor component and the attributes derived from the associations between the concepts. Moreover, we include an analysis that allows us to conclude that the model is resilient to ambiguity without including a disambiguation phase. We finally report the positive impact of selecting training samples from specific content quality classes.
- Type
- a
-
Baoming, Z.: Authoring a hypertext database : experiences with HyperPAD (1993)
0.02
0.023574304 = product of:
0.035361454 = sum of:
0.013936916 = weight(_text_:a in 2761) [ClassicSimilarity], result of:
0.013936916 = score(doc=2761,freq=18.0), product of:
0.05209492 = queryWeight, product of:
1.153047 = idf(docFreq=37942, maxDocs=44218)
0.045180224 = queryNorm
0.26752928 = fieldWeight in 2761, product of:
4.2426405 = tf(freq=18.0), with freq of:
18.0 = termFreq=18.0
1.153047 = idf(docFreq=37942, maxDocs=44218)
0.0546875 = fieldNorm(doc=2761)
0.02142454 = product of:
0.04284908 = sum of:
0.04284908 = weight(_text_:22 in 2761) [ClassicSimilarity], result of:
0.04284908 = score(doc=2761,freq=2.0), product of:
0.15821345 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045180224 = queryNorm
0.2708308 = fieldWeight in 2761, 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=2761)
0.5 = coord(1/2)
0.6666667 = coord(2/3)
- Abstract
- In a hypertext database, the information is presented as a network of nodes connected by links. Such nodes may be text, graphics, audio, video, and even other software. Although hypertext provides a new approach to information management, it also leaves a whole new set of problems for the designers of the hypertext database to solve. As the volume of information grows, the task of authoring a hypertext database becomes much more complex. In this article, the author presents the experiences during the development of a hypertext version of the user's guide for information services on JANET, in the UK, by using HyperPAD, a hypertext shell for the IBM PC. It may be the first step to explore the proper way to solve those problems which come together with the increasing application of hypertext
- Source
- Aslib proceedings. 45(1993) no.1, S.19-22
- Type
- a
-
Milosavljevic, M.; Oberlander, J.: Dynamic catalogues on the WWW (1998)
0.02
0.023402527 = product of:
0.03510379 = sum of:
0.010618603 = weight(_text_:a in 3594) [ClassicSimilarity], result of:
0.010618603 = score(doc=3594,freq=8.0), product of:
0.05209492 = queryWeight, product of:
1.153047 = idf(docFreq=37942, maxDocs=44218)
0.045180224 = queryNorm
0.20383182 = fieldWeight in 3594, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
1.153047 = idf(docFreq=37942, maxDocs=44218)
0.0625 = fieldNorm(doc=3594)
0.024485188 = product of:
0.048970375 = sum of:
0.048970375 = weight(_text_:22 in 3594) [ClassicSimilarity], result of:
0.048970375 = score(doc=3594,freq=2.0), product of:
0.15821345 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045180224 = queryNorm
0.30952093 = fieldWeight in 3594, 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=3594)
0.5 = coord(1/2)
0.6666667 = coord(2/3)
- Abstract
- Natural language generation techniques can be used to dynamically produce hypertext dynamic catalogues on the Web, resulting in DYNAMIC HYPERTEXT. A dynamic hypertext document can be tailored more precisely to a particular user's needs and background, thus helping the user to search more effectively. Describes the automatic generation of WWW documents and illustrates with 2 implemented systems
- Date
- 1. 8.1996 22:08:06
- Footnote
- Contribution to a special issue devoted to the Proceedings of the 7th International World Wide Web Conference, held 14-18 April 1998, Brisbane, Australia
- Type
- a
-
Lima, G.A.B. de Oliveira: Conceptual modeling of hypertexts : methodological proposal for the management of semantic content in digital libraries (2012)
0.02
0.023035955 = product of:
0.03455393 = sum of:
0.006896985 = weight(_text_:a in 451) [ClassicSimilarity], result of:
0.006896985 = score(doc=451,freq=6.0), product of:
0.05209492 = queryWeight, product of:
1.153047 = idf(docFreq=37942, maxDocs=44218)
0.045180224 = queryNorm
0.13239266 = fieldWeight in 451, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
1.153047 = idf(docFreq=37942, maxDocs=44218)
0.046875 = fieldNorm(doc=451)
0.027656946 = product of:
0.055313893 = sum of:
0.055313893 = weight(_text_:de in 451) [ClassicSimilarity], result of:
0.055313893 = score(doc=451,freq=2.0), product of:
0.19416152 = queryWeight, product of:
4.297489 = idf(docFreq=1634, maxDocs=44218)
0.045180224 = queryNorm
0.28488597 = fieldWeight in 451, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.297489 = idf(docFreq=1634, maxDocs=44218)
0.046875 = fieldNorm(doc=451)
0.5 = coord(1/2)
0.6666667 = coord(2/3)
- Abstract
- This research is focused on the continuation of the Hypertext Map prototype implementation - MHTX, proposed by Lima, (2004), with the general objective of transforming the MHTX into a semantic content management product facilitating navigation in context supported by customizable software that is easy to use, through high end desktop/web interfaces that sustain the operation of its functions. Besides, these studies aim, in the long run, to achieve the simplification of the information organization, access and recovery processes in digital libraries, making archive management by authors, content managers and information professionals possible.
- Source
- Categories, contexts and relations in knowledge organization: Proceedings of the Twelfth International ISKO Conference 6-9 August 2012, Mysore, India. Eds.: Neelameghan, A. u. K.S. Raghavan
- Type
- a
-
Ramarapu, N.: ¬The impact of hypertext versus sequential information presentation on decision making : a conceptual model (1996)
0.02
0.022454113 = product of:
0.03368117 = sum of:
0.009195981 = weight(_text_:a in 5512) [ClassicSimilarity], result of:
0.009195981 = score(doc=5512,freq=6.0), product of:
0.05209492 = queryWeight, product of:
1.153047 = idf(docFreq=37942, maxDocs=44218)
0.045180224 = queryNorm
0.17652355 = fieldWeight in 5512, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
1.153047 = idf(docFreq=37942, maxDocs=44218)
0.0625 = fieldNorm(doc=5512)
0.024485188 = product of:
0.048970375 = sum of:
0.048970375 = weight(_text_:22 in 5512) [ClassicSimilarity], result of:
0.048970375 = score(doc=5512,freq=2.0), product of:
0.15821345 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045180224 = queryNorm
0.30952093 = fieldWeight in 5512, 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=5512)
0.5 = coord(1/2)
0.6666667 = coord(2/3)
- Abstract
- Proposes a conceptual model to examine hypertext information presentation effects on decision making performance when compared with traditional sequentional information presentation and access. Considers which combination of task knowledge type (superficial, and causal) and information presentation styles (sequential, hypertext) yield the best decision making performance. This is achieved by comparing performance effect of hypertext and sequential information presentation when applied to superficial and causal type of knowledge required for the task. The 2 surrogates used for measuring the outcome of the performance effects are decision time and secision accuracy
- Date
- 24.10.1996 19:57:22
- Type
- a
-
Kim, S.H.; Eastman, C.M.: ¬An experiment on node size in a hypermedia system (1999)
0.02
0.021869322 = product of:
0.032803982 = sum of:
0.011379444 = weight(_text_:a in 3673) [ClassicSimilarity], result of:
0.011379444 = score(doc=3673,freq=12.0), product of:
0.05209492 = queryWeight, product of:
1.153047 = idf(docFreq=37942, maxDocs=44218)
0.045180224 = queryNorm
0.21843673 = fieldWeight in 3673, product of:
3.4641016 = tf(freq=12.0), with freq of:
12.0 = termFreq=12.0
1.153047 = idf(docFreq=37942, maxDocs=44218)
0.0546875 = fieldNorm(doc=3673)
0.02142454 = product of:
0.04284908 = sum of:
0.04284908 = weight(_text_:22 in 3673) [ClassicSimilarity], result of:
0.04284908 = score(doc=3673,freq=2.0), product of:
0.15821345 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045180224 = queryNorm
0.2708308 = fieldWeight in 3673, 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=3673)
0.5 = coord(1/2)
0.6666667 = coord(2/3)
- Abstract
- The node size that should be used in a hypermedia system is an important design issue. 3 interpretations of node size are identified: storage (physical size), window size (presentation size), and length (logical size). an experiment in which presentation size and text length are varied in a HyperCard application is described. The experiment involves student subjects performing a fact retrieval task from a reference handbook. No interaction is found between these 2 independent variables. Performance is significantly better for the longer texts, but no significant difference is found for the 2 different window sizes
- Date
- 22. 5.1999 9:35:20
- Type
- a
-
Spertus, E.: ParaSite : mining structural information on the Web (1997)
0.02
0.021329116 = product of:
0.031993672 = sum of:
0.0075084865 = weight(_text_:a in 2740) [ClassicSimilarity], result of:
0.0075084865 = score(doc=2740,freq=4.0), product of:
0.05209492 = queryWeight, product of:
1.153047 = idf(docFreq=37942, maxDocs=44218)
0.045180224 = queryNorm
0.14413087 = fieldWeight in 2740, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
1.153047 = idf(docFreq=37942, maxDocs=44218)
0.0625 = fieldNorm(doc=2740)
0.024485188 = product of:
0.048970375 = sum of:
0.048970375 = weight(_text_:22 in 2740) [ClassicSimilarity], result of:
0.048970375 = score(doc=2740,freq=2.0), product of:
0.15821345 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045180224 = queryNorm
0.30952093 = fieldWeight in 2740, 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=2740)
0.5 = coord(1/2)
0.6666667 = coord(2/3)
- Date
- 1. 8.1996 22:08:06
- Footnote
- Contribution to a special issue of papers from the 6th International World Wide Web conference, held 7-11 Apr 1997, Santa Clara, California
- Type
- a
-
Papers from the workshop on hypermedia and hypertext standards held in Amsterdam, Netherlands, 22-23 April 1993 (1993)
0.02
0.019862993 = product of:
0.029794488 = sum of:
0.0053093014 = weight(_text_:a in 6320) [ClassicSimilarity], result of:
0.0053093014 = score(doc=6320,freq=2.0), product of:
0.05209492 = queryWeight, product of:
1.153047 = idf(docFreq=37942, maxDocs=44218)
0.045180224 = queryNorm
0.10191591 = fieldWeight in 6320, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.153047 = idf(docFreq=37942, maxDocs=44218)
0.0625 = fieldNorm(doc=6320)
0.024485188 = product of:
0.048970375 = sum of:
0.048970375 = weight(_text_:22 in 6320) [ClassicSimilarity], result of:
0.048970375 = score(doc=6320,freq=2.0), product of:
0.15821345 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045180224 = queryNorm
0.30952093 = fieldWeight in 6320, 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=6320)
0.5 = coord(1/2)
0.6666667 = coord(2/3)
- Content
- Enthält u.a.: WELSCH, L.A.: Multimedia and hypermedia: model and framework. - BRYAN, M.: Standards for text and hypermedia processing. - POPHAM, M.G.: Use of SGML and HyTime in UK universities. - SCHELLER, A.: The Open Document Architecture (ODA) and its HyperODA extensions. - FROMONT, J.: State-of-the-art regarding the various standards for contents related to text, still images, sound and video. - BROEKMAN, H.J.D.: Effective communication with interactive media
-
Gabbard, R.: Recent literature shows accelerated growth in hypermedia tools : an annotated bibliography (1994)
0.02
0.019862993 = product of:
0.029794488 = sum of:
0.0053093014 = weight(_text_:a in 8460) [ClassicSimilarity], result of:
0.0053093014 = score(doc=8460,freq=2.0), product of:
0.05209492 = queryWeight, product of:
1.153047 = idf(docFreq=37942, maxDocs=44218)
0.045180224 = queryNorm
0.10191591 = fieldWeight in 8460, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.153047 = idf(docFreq=37942, maxDocs=44218)
0.0625 = fieldNorm(doc=8460)
0.024485188 = product of:
0.048970375 = sum of:
0.048970375 = weight(_text_:22 in 8460) [ClassicSimilarity], result of:
0.048970375 = score(doc=8460,freq=2.0), product of:
0.15821345 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045180224 = queryNorm
0.30952093 = fieldWeight in 8460, 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=8460)
0.5 = coord(1/2)
0.6666667 = coord(2/3)
- Source
- Reference services review. 22(1994) no.2, S.31-40
- Type
- a
-
Smith, L.C.: "Wholly new forms of encyclopedias" : electronic knowledge in the form of hypertext (1989)
0.02
0.019862993 = product of:
0.029794488 = sum of:
0.0053093014 = weight(_text_:a in 3558) [ClassicSimilarity], result of:
0.0053093014 = score(doc=3558,freq=2.0), product of:
0.05209492 = queryWeight, product of:
1.153047 = idf(docFreq=37942, maxDocs=44218)
0.045180224 = queryNorm
0.10191591 = fieldWeight in 3558, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.153047 = idf(docFreq=37942, maxDocs=44218)
0.0625 = fieldNorm(doc=3558)
0.024485188 = product of:
0.048970375 = sum of:
0.048970375 = weight(_text_:22 in 3558) [ClassicSimilarity], result of:
0.048970375 = score(doc=3558,freq=2.0), product of:
0.15821345 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045180224 = queryNorm
0.30952093 = fieldWeight in 3558, 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=3558)
0.5 = coord(1/2)
0.6666667 = coord(2/3)
- Abstract
- The history of encyclopedias and wholly new forms of encyclopedias are briefly reviewed. The possibilities and problems that hypertext presents as a basis for new forms of encyclopedias are explored. The capabilities of current systems, both experimental and commercially available, are outlined, focusing on new possibilities for authoring and design and for reading the retrieval. Examples of applications already making use of hypertext are given.
- Date
- 7. 1.1996 22:47:52
-
Diaz, P.; Aedo, I.; Panetsos, F.: Labyrinth, an abstract model for hypermedia applications : Description of its static components (1997)
0.02
0.019862993 = product of:
0.029794488 = sum of:
0.0053093014 = weight(_text_:a in 3318) [ClassicSimilarity], result of:
0.0053093014 = score(doc=3318,freq=2.0), product of:
0.05209492 = queryWeight, product of:
1.153047 = idf(docFreq=37942, maxDocs=44218)
0.045180224 = queryNorm
0.10191591 = fieldWeight in 3318, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.153047 = idf(docFreq=37942, maxDocs=44218)
0.0625 = fieldNorm(doc=3318)
0.024485188 = product of:
0.048970375 = sum of:
0.048970375 = weight(_text_:22 in 3318) [ClassicSimilarity], result of:
0.048970375 = score(doc=3318,freq=2.0), product of:
0.15821345 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045180224 = queryNorm
0.30952093 = fieldWeight in 3318, 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=3318)
0.5 = coord(1/2)
0.6666667 = coord(2/3)
- Source
- Information systems. 22(1997) no.8, S.447-464
- Type
- a
-
Capps, M.; Ladd, B.; Stotts, D.: Enhanced graph models in the Web : multi-client, multi-head, multi-tail browsing (1996)
0.02
0.019647349 = product of:
0.029471021 = sum of:
0.008046483 = weight(_text_:a in 5860) [ClassicSimilarity], result of:
0.008046483 = score(doc=5860,freq=6.0), product of:
0.05209492 = queryWeight, product of:
1.153047 = idf(docFreq=37942, maxDocs=44218)
0.045180224 = queryNorm
0.1544581 = fieldWeight in 5860, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
1.153047 = idf(docFreq=37942, maxDocs=44218)
0.0546875 = fieldNorm(doc=5860)
0.02142454 = product of:
0.04284908 = sum of:
0.04284908 = weight(_text_:22 in 5860) [ClassicSimilarity], result of:
0.04284908 = score(doc=5860,freq=2.0), product of:
0.15821345 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045180224 = queryNorm
0.2708308 = fieldWeight in 5860, 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=5860)
0.5 = coord(1/2)
0.6666667 = coord(2/3)
- Abstract
- Richer graph models permit authors to 'program' the browsing behaviour they want WWW readers to see by turning the hypertext into a hyperprogram with specific semantics. Multiple browsing streams can be started under the author's control and then kept in step through the synchronization mechanisms provided by the graph model. Adds a Semantic Web Graph Layer (SWGL) which allows dynamic interpretation of link and node structures according to graph models. Details the SWGL and its architecture, some sample protocol implementations, and the latest extensions to MHTML
- Date
- 1. 8.1996 22:08:06
- Type
- a
-
Falquet, G.; Guyot, J.; Nerima, L.: Languages and tools to specify hypertext views on databases (1999)
0.02
0.018178573 = product of:
0.027267858 = sum of:
0.00890397 = weight(_text_:a in 3968) [ClassicSimilarity], result of:
0.00890397 = score(doc=3968,freq=10.0), product of:
0.05209492 = queryWeight, product of:
1.153047 = idf(docFreq=37942, maxDocs=44218)
0.045180224 = queryNorm
0.1709182 = fieldWeight in 3968, product of:
3.1622777 = tf(freq=10.0), with freq of:
10.0 = termFreq=10.0
1.153047 = idf(docFreq=37942, maxDocs=44218)
0.046875 = fieldNorm(doc=3968)
0.01836389 = product of:
0.03672778 = sum of:
0.03672778 = weight(_text_:22 in 3968) [ClassicSimilarity], result of:
0.03672778 = score(doc=3968,freq=2.0), product of:
0.15821345 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045180224 = queryNorm
0.23214069 = fieldWeight in 3968, 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=3968)
0.5 = coord(1/2)
0.6666667 = coord(2/3)
- Abstract
- We present a declarative language for the construction of hypertext views on databases. The language is based on an object-oriented data model and a simple hypertext model with reference and inclusion links. A hypertext view specification consists in a collection of parameterized node schemes which specify how to construct node and links instances from the database contents. We show how this language can express different issues in hypertext view design. These include: the direct mapping of objects to nodes; the construction of complex nodes based on sets of objects; the representation of polymorphic sets of objects; and the representation of tree and graph structures. We have defined sublanguages corresponding to particular database models (relational, semantic, object-oriented) and implemented tools to generate Web views for these database models
- Date
- 21.10.2000 15:01:22
- Type
- a
-
Westland, J.C.: Some conditions for cost efficiency in hypermedia (1998)
0.02
0.017551895 = product of:
0.026327841 = sum of:
0.007963953 = weight(_text_:a in 3292) [ClassicSimilarity], result of:
0.007963953 = score(doc=3292,freq=8.0), product of:
0.05209492 = queryWeight, product of:
1.153047 = idf(docFreq=37942, maxDocs=44218)
0.045180224 = queryNorm
0.15287387 = fieldWeight in 3292, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
1.153047 = idf(docFreq=37942, maxDocs=44218)
0.046875 = fieldNorm(doc=3292)
0.01836389 = product of:
0.03672778 = sum of:
0.03672778 = weight(_text_:22 in 3292) [ClassicSimilarity], result of:
0.03672778 = score(doc=3292,freq=2.0), product of:
0.15821345 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045180224 = queryNorm
0.23214069 = fieldWeight in 3292, 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=3292)
0.5 = coord(1/2)
0.6666667 = coord(2/3)
- Abstract
- Models administrative and operating costs surrounding a hypermedia database and determines 7 conditions for the cost justification of hypermedia; higher linking costs proportionately reduce the total number of links implemented; increasing the benefits from using the database increases the total number of links proportionately; increasing database size results in an increase in the total number of links implemented; if the database user learns from the database slowly, then a larger number of links need to be provided: the maximum size of databases which is justified on cost will increase as the average cost of linking each node becomes smaller; the total benefit from usage required in order to cost justify a database will decrease as the average cost of linking each node becomes smaller and the maximum size of database which is cost justified will increase rapidly as the learning rate increases. The learning rate can be increased by construction of links and nodes so that they are maximally informative
- Date
- 7. 3.1999 14:22:45
- Type
- a
-
Yang, C.C.; Liu, N.: Web site topic-hierarchy generation based on link structure (2009)
0.02
0.01719778 = product of:
0.02579667 = sum of:
0.010493428 = weight(_text_:a in 2738) [ClassicSimilarity], result of:
0.010493428 = score(doc=2738,freq=20.0), product of:
0.05209492 = queryWeight, product of:
1.153047 = idf(docFreq=37942, maxDocs=44218)
0.045180224 = queryNorm
0.20142901 = fieldWeight in 2738, product of:
4.472136 = tf(freq=20.0), with freq of:
20.0 = termFreq=20.0
1.153047 = idf(docFreq=37942, maxDocs=44218)
0.0390625 = fieldNorm(doc=2738)
0.015303242 = product of:
0.030606484 = sum of:
0.030606484 = weight(_text_:22 in 2738) [ClassicSimilarity], result of:
0.030606484 = score(doc=2738,freq=2.0), product of:
0.15821345 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045180224 = queryNorm
0.19345059 = fieldWeight in 2738, 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=2738)
0.5 = coord(1/2)
0.6666667 = coord(2/3)
- Abstract
- Navigating through hyperlinks within a Web site to look for information from one of its Web pages without the support of a site map can be inefficient and ineffective. Although the content of a Web site is usually organized with an inherent structure like a topic hierarchy, which is a directed tree rooted at a Web site's homepage whose vertices and edges correspond to Web pages and hyperlinks, such a topic hierarchy is not always available to the user. In this work, we studied the problem of automatic generation of Web sites' topic hierarchies. We modeled a Web site's link structure as a weighted directed graph and proposed methods for estimating edge weights based on eight types of features and three learning algorithms, namely decision trees, naïve Bayes classifiers, and logistic regression. Three graph algorithms, namely breadth-first search, shortest-path search, and directed minimum-spanning tree, were adapted to generate the topic hierarchy based on the graph model. We have tested the model and algorithms on real Web sites. It is found that the directed minimum-spanning tree algorithm with the decision tree as the weight learning algorithm achieves the highest performance with an average accuracy of 91.9%.
- Date
- 22. 3.2009 12:51:47
- Type
- a
-
Schreiweis, U.: Hypertextstrukturen als Grundlage für integrierte Wissensakquisitionssysteme (1993)
0.02
0.016323458 = product of:
0.048970375 = sum of:
0.048970375 = product of:
0.09794075 = sum of:
0.09794075 = weight(_text_:22 in 8762) [ClassicSimilarity], result of:
0.09794075 = score(doc=8762,freq=2.0), product of:
0.15821345 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045180224 = queryNorm
0.61904186 = fieldWeight in 8762, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.125 = fieldNorm(doc=8762)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 19.10.1995 10:22:53
-
Carmel, E.; Crawford, S.; Chen, H.: Browsing in hypertext : a cognitive study (1992)
0.02
0.016055118 = product of:
0.024082676 = sum of:
0.008779433 = weight(_text_:a in 7469) [ClassicSimilarity], result of:
0.008779433 = score(doc=7469,freq=14.0), product of:
0.05209492 = queryWeight, product of:
1.153047 = idf(docFreq=37942, maxDocs=44218)
0.045180224 = queryNorm
0.1685276 = fieldWeight in 7469, product of:
3.7416575 = tf(freq=14.0), with freq of:
14.0 = termFreq=14.0
1.153047 = idf(docFreq=37942, maxDocs=44218)
0.0390625 = fieldNorm(doc=7469)
0.015303242 = product of:
0.030606484 = sum of:
0.030606484 = weight(_text_:22 in 7469) [ClassicSimilarity], result of:
0.030606484 = score(doc=7469,freq=2.0), product of:
0.15821345 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045180224 = queryNorm
0.19345059 = fieldWeight in 7469, 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=7469)
0.5 = coord(1/2)
0.6666667 = coord(2/3)
- Abstract
- With the growth of hypertext and multimedia applications that support and encourage browsing it is time to take a penetrating look at browsing behaviour. Several dimensions of browsing are exemined, to find out: first, what is browsing and what cognitive processes are associated with it: second, is there a browsing strategy, and if so, are there any differences between how subject-area experts and novices browse; and finally, how can this knowledge be applied to improve the design of hypertext systems. Two groups of students, subject-area experts and novices, were studied while browsing a Macintosh HyperCard application on the subject The Vietnam War. A protocol analysis technique was used to gather and analyze data. Components of the GOMS model were used to describe the goals, operators, methods, and selection rules observed: Three browsing strategies were identified: (1) search-oriented browse, scanning and and reviewing information relevant to a fixed task; (2) review-browse, scanning and reviewing intersting information in the presence of transient browse goals that represent changing tasks, and (3) scan-browse, scanning for interesting information (without review). Most subjects primarily used review-browse interspersed with search-oriented browse. Within this strategy, comparisons between subject-area experts and novices revealed differences in tactics: experts browsed in more depth, seldom used referential links, selected different kinds of topics, and viewed information differently thatn did novices. Based on these findings, suggestions are made to hypertext developers
- Source
- IEEE transactions on systems, man and cybernetics. 22(1992) no.5, S.865-884
- Type
- a
-
Aßfalg, R.: Integration eines offenen Hypertextsystems in den Internet-Mehrwertdienst World Wide Web : ein Ansatz unter Verwendung eines objektorientierten Datenbanksystems (1996)
0.01
0.014283027 = product of:
0.04284908 = sum of:
0.04284908 = product of:
0.08569816 = sum of:
0.08569816 = weight(_text_:22 in 6562) [ClassicSimilarity], result of:
0.08569816 = score(doc=6562,freq=2.0), product of:
0.15821345 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045180224 = queryNorm
0.5416616 = fieldWeight in 6562, 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=6562)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 22. 2.1997 19:40:31
-
Menges, T.: Möglichkeiten und Grenzen der Übertragbarkeit eines Buches auf Hypertext am Beispiel einer französischen Grundgrammatik (Klein; Kleineidam) (1997)
0.01
0.014283027 = product of:
0.04284908 = sum of:
0.04284908 = product of:
0.08569816 = sum of:
0.08569816 = weight(_text_:22 in 1496) [ClassicSimilarity], result of:
0.08569816 = score(doc=1496,freq=2.0), product of:
0.15821345 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045180224 = queryNorm
0.5416616 = fieldWeight in 1496, 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=1496)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 22. 7.1998 18:23:25
-
Hammwöhner, R.: Offene Hypertextsysteme : Das Konstanzer Hypertextsystem (KHS) im wissenschaftlichen und technischen Kontext (1997)
0.01
0.008161729 = product of:
0.024485188 = sum of:
0.024485188 = product of:
0.048970375 = sum of:
0.048970375 = weight(_text_:22 in 1508) [ClassicSimilarity], result of:
0.048970375 = score(doc=1508,freq=2.0), product of:
0.15821345 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045180224 = queryNorm
0.30952093 = fieldWeight in 1508, 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=1508)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 17. 7.2002 16:22:13
