-
Pastor, J.A.S.: ¬El nuevo documento electronico de la tabla relacional al hiperdocumento (1996)
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- Abstract
- Criticizes the current processes of information management, with the objective of arriving at a new concept of the electronic document. Discusses problems of human language in the context of information management. Examines the problem of information from the point of view of the structure of knowledge, by analysing dysfunction in current processes of information management. Proposes a model of knowledge nearer to the human mind called 'document hypertext'. A combined interface of information management id also applicable in studies of hardware, graphic interfaces and metaphors of visualization of information. The current excessive fragmentation and artificial treatment of information structures could be avoided by simplifying of processes of information management and creating integral interfaces that bring information systems closer to the user
-
Yang, C.C.; Liu, N.: Web site topic-hierarchy generation based on link structure (2009)
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- 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
- Source
- Journal of the American Society for Information Science and Technology. 60(2009) no.3, S.495-508
-
Parkes, A.P.: ¬A study of problem solving activities in hypermedia representation (1994)
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- Abstract
- Presents a study of problem solving activities in a hypermedia representation of a theorem proving problem. The users interacted with a system called HUGH&ME which presented users with 2 representations simultaneously. The respresentations were such that any operations carried out on the other. Describes a quantitative analysis of user activities, and a qualitative analysis of users' responses to questions asked during the session. Discusses the need for hypermedia based tools to support expression and refinement of users' reasoning when engaged in hypermedia-based problem solving activities
- Source
- Journal of educational multimedia and hypermedia. 3(1994) no.2, S.197-223
-
Smith, L.C.: "Wholly new forms of encyclopedias" : electronic knowledge in the form of hypertext (1989)
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- 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
- Source
- Information, knowledge, evolution. Proceedings of the 44th FID Congress, Helsinki, 28.8.-1.9.1988. Ed. by S. Koshiala and R. Launo
-
Griffith, C.: What's all the hype about hypertext? (1989)
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- Abstract
- Considers the reason why CD-ROM's promise of a large range of legal data bases has, to some extent, been limited. The new range of CD-ROM hypertext data bases, produced by West Publishing Company, are discussed briefly.
- Source
- Information today. 6(1989) no.4, S.22-24
-
Welsch, L.A.: Multimedia and hypermedia : model and framework (1993)
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- Abstract
- Compilation of overhead sheets of papers given at the workshop. Describes standards for multimedia and hypermedia
- Footnote
- Part of a special issue featuring papers from the workshop on hypermedia and hypertext standards held in Amsterdam, Netherlands, 22-23 April 1993
-
Ramarapu, N.: ¬The impact of hypertext versus sequential information presentation on decision making : a conceptual model (1996)
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- 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
- Source
- International journal of information management. 16(1996) no.3, S.183-193
-
Diaz, P.; Aedo, I.; Panetsos, F.: Labyrinth, an abstract model for hypermedia applications : Description of its static components (1997)
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- Abstract
- Analyzes an abstract model for hypermedia pplications. The model, Labyrinth, allows: the design of platform-independent hypermedia applications; the categorisation, generalisation and abstraction of unstructured heterogeneous information in multiple and interconnected levels, the creation of personalisations in multiuser hyperdocuments for both groups and individual users and the design of advanced security mechanisms for hypermedia applications
- Source
- Information systems. 22(1997) no.8, S.447-464
-
Baoming, Z.: Authoring a hypertext database : experiences with HyperPAD (1993)
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- 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
-
Jörgensen, C.; Jörgensen, P.: Citations in hypermedia : maintaining critical links (1991)
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- Abstract
- The lack of complete and accurate citations for referenced works is a persistent and significant problem in scholarly writing. The advent of new froms of electronic publishing, especially hypermedia, has the potential for either aggravating or alleviating this problem. Incorrect and missing citations will become more prevalent (and, indeed, have become so within large bibliographic databases) without a concerted and ccoperative effort on the part of systems developers to provide adequate references and the means for easily accessing and downloading them. Examines some of the basic issues involved in the problem of maintaining the critical authorship links between source and expression in one specific form of electronic publishing - hypermedia - and proposes some solutions
-
Thimbleby, H.: Designing user interfaces for problem solving, with application to hypertext and creative writing (1994)
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- Abstract
- Defines and explores the use of problem solving heuristics in user interface design. A demonstration hypertext system, Hyperwriter, was developed as the outcome of considering general problems solving heuristics as goals of interactive systems design. Whereas hypertext joins and relates ideas, Hyperwriter additionally, and as a direct outcome of the design approach, has ways of separating, ordering and polishing ideas as an application for creative writing. Hypertext supports effective thinking over a period of time. Discusses some issues arising in implementing Hypertext
-
Khalifa, M.; Shen, K.N.: Applying semantic networks to hypertext design : effects on knowledge structure acquisition and problem solving (2010)
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- Abstract
- One of the key objectives of knowledge management is to transfer knowledge quickly and efficiently from experts to novices, who are different in terms of the structural properties of domain knowledge or knowledge structure. This study applies experts' semantic networks to hypertext navigation design and examines the potential of the resulting design, i.e., semantic hypertext, in facilitating knowledge structure acquisition and problem solving. Moreover, we argue that the level of sophistication of the knowledge structure acquired by learners is an important mediator influencing the learning outcomes (in this case, problem solving). The research model was empirically tested with a situated experiment involving 80 business professionals. The results of the empirical study provided strong support for the effectiveness of semantic hypertext in transferring knowledge structure and reported a significant full mediating effect of knowledge structure sophistication. Both theoretical and practical implications of this research are discussed.
- Source
- Journal of the American Society for Information Science and Technology. 61(2010) no.8, S.1673-1685
-
Dimitroff, A.; Wolfram, D.: Searcher response in a hypertext-based bibliographic information retrieval system (1995)
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- Abstract
- This article examines searcher behavior and affective response to a hypertext-based bibliographic information retrieval system called HyperLynx for searchers with different search skills and backgrounds. Search times and number of nodes visited were recorded for five specified search queries, and views of the system were recorded for each searcher. No significant differences were found in search times or user satisfaction with the system, indicating that a hypertext-based approach to bibliographic retrieval could be appropriate for a variety of searcher experience levels
- Source
- Journal of the American Society for Information Science. 46(1995) no.1, S.22-29
-
Spertus, E.: ParaSite : mining structural information on the Web (1997)
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- Abstract
- Discusses the varieties of link information on the WWW, how the Web differs from conventional hypertext, and how the links can be exploited to build useful applications. Specific applications presented as part of the ParaSite system find individuals' homepages, new locations of moved pages and unindexed information
- 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
-
Esichaikul, V.; Smith, R.D.; Madey, G.R.: ¬The impact of learning style on problem-solving performance in a hypertext environment (1994)
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- Abstract
- Experiential learning theory, introduced by Kolb, suggests that people develop different learning styles. A study was conducted to determine whether or not individuals who exhibit certain learning styles are more successful in using a hypermedia problem solving system. The Learning Style Inventory was used to classifiy subjects into 4 groups based on their learning styles: converger, diverger, assimilator, and accomodator. The study found that learning style had an impact on problem solving quality when using the hypermedia system. The preferred learning style in a hypermedia based problem solving environment is the converger. In terms of learning orientation, abstract conceptualizers performed a higher quality of hypertext based problem solving than those who prefer concrete experience
-
Marques, E.V.: Introducao aos sistemas de hipertexto (1995)
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- Abstract
- Hypertexts are electronic documents divided into interconnected fragments of text, which can be accessed directly thus evading the limitations of the linear structure of printed documents. The user can interact dynamically with the information and establish new relations. Describes the component features of such systems (hard and software) in relation to their applications (macro-literary, problem exploration, generic). The advantages of flexible organisation of texts, reference linkage and simultaneous access outweigh such disadvantages as the problem of constructing systems for a range of diverse user needs, making hypertext a significant aid to creative thinking
-
Baião Salgado Silva, G.; Lima, G.Â. Borém de Oliveira: Using topic maps in establishing compatibility of semantically structured hypertext contents (2012)
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- Abstract
- Considering the characteristics of hypertext systems and problems such as cognitive overload and the disorientation of users, this project studies subject hypertext documents that have undergone conceptual structuring using facets for content representation and improvement of information retrieval during navigation. The main objective was to assess the possibility of the application of topic map technology for automating the compatibilization process of these structures. For this purpose, two dissertations from the UFMG Information Science Post-Graduation Program were adopted as samples. Both dissertations had been duly analyzed and structured on the MHTX (Hypertextual Map) prototype database. The faceted structures of both dissertations, which had been represented in conceptual maps, were then converted into topic maps. It was then possible to use the merge property of the topic maps to promote the semantic interrelationship between the maps and, consequently, between the hypertextual information resources proper. The merge results were then analyzed in the light of theories dealing with the compatibilization of languages developed within the realm of information technology and librarianship from the 1960s on. The main goals accomplished were: (a) the detailed conceptualization of the merge process of the topic maps, considering the possible compatibilization levels and the applicability of this technology in the integration of faceted structures; and (b) the production of a detailed sequence of steps that may be used in the implementation of topic maps based on faceted structures.
- Date
- 22. 2.2013 11:39:23
-
Westland, J.C.: Some conditions for cost efficiency in hypermedia (1998)
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- 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
-
Rada, R.: Hypertext and paper : a special synergy (1991)
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- Abstract
- Some people argure that hypertext is easy to write, is hard to create by converting existing text into hypertext, and has a massive market. This paper argures the contrary. First, Hypertext is hard to write. Second, automatically converting a text into hypertext is, to a first approximation, easy. Third, successful marketing of hypertext depends on having a large volume of material that is also available in paper form
- Source
- International journal of information management. 11(1991) no.1, S.14-22
-
Stanton, N.A.; Baber, C.: ¬The myth of navigating in hypertext : how a 'bandwagon' has lost its course! (1994)
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- Abstract
- Commercially available applications of hypertext are based upon the premise of information 'nodes' being connected by 'links'. This manner of presenting information has been described in terms of 'electronic space'. Some confusion has arisen from an ambiguous use of the term 'space'. Much of the research into navigation has unquestioning adopted a physical metaphor, assuming that users navigate through this as they would in 3 dimensional space. Disorientation is the by product of poor interface desing, and is not a feature of hypertext. Users become 'lost' because it is unclear what actions they can perform. System designers should consider hypertext as a problem space, rather than a physical space
- Source
- Journal of educational multimedia and hypermedia. 3(1994) nos.3/4, S.235-249
