Presents an object-oriented NBO(node-block-object)data model for hypermedia system.It takes advantage of object-oriented method,encapsulates all multimedia information as well as link functions in one unit,It has succ...Presents an object-oriented NBO(node-block-object)data model for hypermedia system.It takes advantage of object-oriented method,encapsulates all multimedia information as well as link functions in one unit,It has successfully achieved cross link to offer much better flexibility and two-way link to realize forward and backward searching in hypermedia system navigation.A conditional relation on links has also been realized,that is very helpful for time sensitive multimedia information processing and multimedia object cooperation.展开更多
This paper presents the hypermedia data model based on the infinity RS image information system we have developed.The hypermedia data model consists of different semantic units called nodes,and the associations betwee...This paper presents the hypermedia data model based on the infinity RS image information system we have developed.The hypermedia data model consists of different semantic units called nodes,and the associations between nodes are called links.This paper proposes three kinds of nodes (interior node,physical node and complex node) and two kinds of links (plane network structure link,hyper_cube network structure links).The hypermedia information system,based on the model and the basic data layer (the infiniy RS image),represents a digital globe.An approach to the “Getting Lost in the Hyper_space” problem is presented.The approach using the hypermedia data model is an efficient way of handling a large number of RS images in various geographical information systems.展开更多
With hypermedia technology the structure of a publication can be re_arranged to accommodate more easy cognition of the idea and concept by linking the concepts which are represented by different media forms into an in...With hypermedia technology the structure of a publication can be re_arranged to accommodate more easy cognition of the idea and concept by linking the concepts which are represented by different media forms into an integrated concept.Essentially,multimedia electronic atlas is a kind of electronic publication,which has many common characters with ordinary CD_ROM publications.For the deeper exploration of electronic atlas it is very important to understand the internal and general structure of the new media structure.The aim of this paper is to discuss the internal structure of multimedia electronic atlas as a whole by applying the methodology of linguistics.展开更多
Aimed at the needs of developing the CAI courseware with popularization, the expression ways for hypercard based information, and the key principles of the development for authoring tools, were discussed. The ideas of...Aimed at the needs of developing the CAI courseware with popularization, the expression ways for hypercard based information, and the key principles of the development for authoring tools, were discussed. The ideas of the revised hypermedia chaining structure were introduced. The framework of the courseware authoring tool, its function design and the methods of technical realization for system software were also involved.展开更多
Many analytical or computational applications create documents and display screens in response to user queries “dynamically” or in “real time”. Hypermedia features must be generated “just in time” – automatical...Many analytical or computational applications create documents and display screens in response to user queries “dynamically” or in “real time”. Hypermedia features must be generated “just in time” – automatically and dynamically. Conversely, the hypermedia features may have to cause target documents to be generated or re-generated. This paper presents a just-in-time hypermedia framework to provide hypermedia support of virtual documents.展开更多
H-net is a Petri net based formal model of hyp ermedia/ hypert ext. Beingpowerful in the description of hypermedia, H-net can model the information inhypermedia and the knowledge of hypermedia naturally in a ullified ...H-net is a Petri net based formal model of hyp ermedia/ hypert ext. Beingpowerful in the description of hypermedia, H-net can model the information inhypermedia and the knowledge of hypermedia naturally in a ullified Petri netbased wny. This makes H-net good for the modeling of intelligent hypermediasystems. In this paper, a unified reasoning algorithm is proposed to define thedynamic behavior of H-net. Using the Petri net theory based a.lgorithm, thereasoning in hypermedia information subnets, fuzzy production rule subnetsand semantic subnets can be performed efficiently and uniformly展开更多
CoMEdiA is a groupware tool which enables co-authors to cooperatively produce hypermedia docu- ments.CoMEdiA allows co-authors to communicate their ideas,drafts,guidelines,constraints and annota- tions to other co-aut...CoMEdiA is a groupware tool which enables co-authors to cooperatively produce hypermedia docu- ments.CoMEdiA allows co-authors to communicate their ideas,drafts,guidelines,constraints and annota- tions to other co-authors.It uses a mix of communication patterns,media and document organization to enable co-authors to keep on exchanging information(remotely or face-to-face),improving passages and modifying notes until a final document is achieved.We did not concentrate on the depth but on the breath of the features.Our efforts were on integrating and coordinating concepts from collaboration, multimedia and hyper organization rather than on making a specialized system in any of them.We be- gan with the text medium and are now including bitmaps and raster images.Later sound and video will also be integrated.In this paper we describe and sustain the available capacities.展开更多
Learners in hypermedia educational systems （HES） often become disorientated and experience cognitive overhead. This study presents a method for reducing disorientation in HES. The study uses two usability methods, r...Learners in hypermedia educational systems （HES） often become disorientated and experience cognitive overhead. This study presents a method for reducing disorientation in HES. The study uses two usability methods, retrospective thinking aloud （RTA） and performance measure （PM）, to find usability problems in HES that impact participant disorientation. The participants had field independent （FI） and field dependent （FD） cognitive styles. The results indicate that the participants＇ disorientation degree using the RTA method is significantly less than those using the PM method. For the effect of cognitive styles, only the average search steps index showed that FI learners are significantly less disorientated than FD learners. The results can help designers of hyperrnedia systems design tools to reduce user disorientation.展开更多
Geographic Hypermedia(GH)is a rich and interactive map document with geo-tagged graphics,sound and video ele-ments.A Geographic Hypermedia System(GHS)is designed to manage,query,display and explore GH resources.Recogn...Geographic Hypermedia(GH)is a rich and interactive map document with geo-tagged graphics,sound and video ele-ments.A Geographic Hypermedia System(GHS)is designed to manage,query,display and explore GH resources.Recognizing emerging geo-tagged videos and measurable images as valuable geographic data resources,this paper aims to design a web-based GHS using web mapping,geoprocessing,video streaming and XMLHTTP services.The concept,data model,system design and implementation of this GHS are discussed in detail.Geo-tagged videos are modeled as temporal,spatial and metadata entities such as video clip,video path and frame-based descriptions.Similarly,geo-tagged stereo video and derived data are modeled as interre-lated entities:original video,rectified video,stereo video,video path,frame-based description and measurable image(rectified and disparity image with baseline,interior and exterior parameters).The entity data are organized into video files,GIS layers with linear referencing and XML documents for web publishing.These data can be integrated in HTML pages or used as Rich Internet Appli-cations(RIA)using standard web technologies such as the AJAX,ASP.NET and RIA frameworks.An SOA-based GHS is designed using four types of web services:ArcGIS Server 9.3 web mapping and geoprocessing services,Flash FMS 3.0 video streaming ser-vices and GeoRSS XMLHTTP services.GHS applications in road facility management and campus hypermapping indicate that the GH data models and technical solutions introduced in this paper are useful and flexible enough for wider deployment as a GHS.展开更多
文摘Presents an object-oriented NBO(node-block-object)data model for hypermedia system.It takes advantage of object-oriented method,encapsulates all multimedia information as well as link functions in one unit,It has successfully achieved cross link to offer much better flexibility and two-way link to realize forward and backward searching in hypermedia system navigation.A conditional relation on links has also been realized,that is very helpful for time sensitive multimedia information processing and multimedia object cooperation.
文摘This paper presents the hypermedia data model based on the infinity RS image information system we have developed.The hypermedia data model consists of different semantic units called nodes,and the associations between nodes are called links.This paper proposes three kinds of nodes (interior node,physical node and complex node) and two kinds of links (plane network structure link,hyper_cube network structure links).The hypermedia information system,based on the model and the basic data layer (the infiniy RS image),represents a digital globe.An approach to the “Getting Lost in the Hyper_space” problem is presented.The approach using the hypermedia data model is an efficient way of handling a large number of RS images in various geographical information systems.
文摘With hypermedia technology the structure of a publication can be re_arranged to accommodate more easy cognition of the idea and concept by linking the concepts which are represented by different media forms into an integrated concept.Essentially,multimedia electronic atlas is a kind of electronic publication,which has many common characters with ordinary CD_ROM publications.For the deeper exploration of electronic atlas it is very important to understand the internal and general structure of the new media structure.The aim of this paper is to discuss the internal structure of multimedia electronic atlas as a whole by applying the methodology of linguistics.
文摘Aimed at the needs of developing the CAI courseware with popularization, the expression ways for hypercard based information, and the key principles of the development for authoring tools, were discussed. The ideas of the revised hypermedia chaining structure were introduced. The framework of the courseware authoring tool, its function design and the methods of technical realization for system software were also involved.
文摘Many analytical or computational applications create documents and display screens in response to user queries “dynamically” or in “real time”. Hypermedia features must be generated “just in time” – automatically and dynamically. Conversely, the hypermedia features may have to cause target documents to be generated or re-generated. This paper presents a just-in-time hypermedia framework to provide hypermedia support of virtual documents.
文摘H-net is a Petri net based formal model of hyp ermedia/ hypert ext. Beingpowerful in the description of hypermedia, H-net can model the information inhypermedia and the knowledge of hypermedia naturally in a ullified Petri netbased wny. This makes H-net good for the modeling of intelligent hypermediasystems. In this paper, a unified reasoning algorithm is proposed to define thedynamic behavior of H-net. Using the Petri net theory based a.lgorithm, thereasoning in hypermedia information subnets, fuzzy production rule subnetsand semantic subnets can be performed efficiently and uniformly
文摘CoMEdiA is a groupware tool which enables co-authors to cooperatively produce hypermedia docu- ments.CoMEdiA allows co-authors to communicate their ideas,drafts,guidelines,constraints and annota- tions to other co-authors.It uses a mix of communication patterns,media and document organization to enable co-authors to keep on exchanging information(remotely or face-to-face),improving passages and modifying notes until a final document is achieved.We did not concentrate on the depth but on the breath of the features.Our efforts were on integrating and coordinating concepts from collaboration, multimedia and hyper organization rather than on making a specialized system in any of them.We be- gan with the text medium and are now including bitmaps and raster images.Later sound and video will also be integrated.In this paper we describe and sustain the available capacities.
文摘Learners in hypermedia educational systems （HES） often become disorientated and experience cognitive overhead. This study presents a method for reducing disorientation in HES. The study uses two usability methods, retrospective thinking aloud （RTA） and performance measure （PM）, to find usability problems in HES that impact participant disorientation. The participants had field independent （FI） and field dependent （FD） cognitive styles. The results indicate that the participants＇ disorientation degree using the RTA method is significantly less than those using the PM method. For the effect of cognitive styles, only the average search steps index showed that FI learners are significantly less disorientated than FD learners. The results can help designers of hyperrnedia systems design tools to reduce user disorientation.
基金Supported by the National Natural Science Foundation of China (No.40771166 )the Henan University Foundation (No.SBGJ090605)
文摘Geographic Hypermedia(GH)is a rich and interactive map document with geo-tagged graphics,sound and video ele-ments.A Geographic Hypermedia System(GHS)is designed to manage,query,display and explore GH resources.Recognizing emerging geo-tagged videos and measurable images as valuable geographic data resources,this paper aims to design a web-based GHS using web mapping,geoprocessing,video streaming and XMLHTTP services.The concept,data model,system design and implementation of this GHS are discussed in detail.Geo-tagged videos are modeled as temporal,spatial and metadata entities such as video clip,video path and frame-based descriptions.Similarly,geo-tagged stereo video and derived data are modeled as interre-lated entities:original video,rectified video,stereo video,video path,frame-based description and measurable image(rectified and disparity image with baseline,interior and exterior parameters).The entity data are organized into video files,GIS layers with linear referencing and XML documents for web publishing.These data can be integrated in HTML pages or used as Rich Internet Appli-cations(RIA)using standard web technologies such as the AJAX,ASP.NET and RIA frameworks.An SOA-based GHS is designed using four types of web services:ArcGIS Server 9.3 web mapping and geoprocessing services,Flash FMS 3.0 video streaming ser-vices and GeoRSS XMLHTTP services.GHS applications in road facility management and campus hypermapping indicate that the GH data models and technical solutions introduced in this paper are useful and flexible enough for wider deployment as a GHS.
