{"title":"Hierarchical Euler-Poincare operators","authors":"P. Bradley","doi":"10.5311/JOSIS.0.0.38","DOIUrl":"https://doi.org/10.5311/JOSIS.0.0.38","url":null,"abstract":"","PeriodicalId":45389,"journal":{"name":"Journal of Spatial Information Science","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2009-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70769458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Miltos Miltiadous, T. Hadzilacos, Dimitrios Skarlatos
The successful emulation of human pointing involves elements of spatial algorithms and databases, Location Based Services, mobile GIS and context awareness. We propose the term Mobile Spatial Pointing (MSP) as a special case of the Mobile Spatial Interaction (MSI) paradigm, where mobile users point at objects in their environment using multi-sensor enabled mobile devices. The goal of this article is to provide experimental evidence that different MSP algorithms are optimal in effectiveness and efficiency depending on context and user intention. A series of experiments with new algorithms were carried out. The experimental results demonstrate that spatial pointing efficacy is influenced by user, physical and computational context-aware aspects. We conclude that no algorithm is optimal for all application situations of digital pointing, whence MSP systems should be designed adaptively using context-aware techniques. Our results exemplify that user intention accurate prediction upon pointing is a determinant factor for developing an MSP system.
{"title":"One size does not fit all: no single optimal algorithm for mobile spatial pointing","authors":"Miltos Miltiadous, T. Hadzilacos, Dimitrios Skarlatos","doi":"10.5311/JOSIS.0.0.358","DOIUrl":"https://doi.org/10.5311/JOSIS.0.0.358","url":null,"abstract":"The successful emulation of human pointing involves elements of spatial algorithms and databases, Location Based Services, mobile GIS and context awareness. We propose the term Mobile Spatial Pointing (MSP) as a special case of the Mobile Spatial Interaction (MSI) paradigm, where mobile users point at objects in their environment using multi-sensor enabled mobile devices. The goal of this article is to provide experimental evidence that different MSP algorithms are optimal in effectiveness and efficiency depending on context and user intention. A series of experiments with new algorithms were carried out. The experimental results demonstrate that spatial pointing efficacy is influenced by user, physical and computational context-aware aspects. We conclude that no algorithm is optimal for all application situations of digital pointing, whence MSP systems should be designed adaptively using context-aware techniques. Our results exemplify that user intention accurate prediction upon pointing is a determinant factor for developing an MSP system.","PeriodicalId":45389,"journal":{"name":"Journal of Spatial Information Science","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2009-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70769759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A practical qualitative model of nearness","authors":"Ö. Özçep, R. Grütter","doi":"10.5311/JOSIS.0.0.220","DOIUrl":"https://doi.org/10.5311/JOSIS.0.0.220","url":null,"abstract":"","PeriodicalId":45389,"journal":{"name":"Journal of Spatial Information Science","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2009-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70769500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Toward the foundation of geographic ontologies Integration","authors":"S. Châabane","doi":"10.5311/JOSIS.0.0.335","DOIUrl":"https://doi.org/10.5311/JOSIS.0.0.335","url":null,"abstract":"","PeriodicalId":45389,"journal":{"name":"Journal of Spatial Information Science","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2009-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70769694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Recent developments in cyber-infrastructure along with the expanding democratization of the web underline the potential role of ontologies as effective means for unleashing the power of the semantic web. However, the broadening range of users and user needs has led to increasing calls for ‘lightweight’ ontologies very different in structure, expressivity and scope from the traditional foundational or domain-oriented ones. This paper outlines a conceptual model suitable for generating such micro-ontologies tailored to specific user needs and purposes, while avoiding the traps of relativism that ad-hoc efforts might engender. The model focuses on the notion of information decomposed into three ’views’: that of the measurements provided by the empirical world, that of semantics that provide the meaning, and that of the context within which the information is interpreted and used. Together these three aspects enable the construction of micro-ontologies, which correspond to user-motivated selections of measurements to fit particular, task-specific interpretations. The model supersedes the conceptual framework previously proposed by the author [5], which now becomes the semantic view. In it new role the former framework allows informational threads to be traced through a nested sequence of layers of decreasing semantic richness, guided by user purpose. ‘Purpose’ is here seen as both the interface between micro-ontologies and the social world that motivates user needs and perspectives, and as the primary principle in the selection and interpretation of information most appropriate for the representational task at hand. While exploratory, the model appears compatible with several other efforts in the field.
{"title":"Ontologies as social constructs: The case of geographic information","authors":"H. Couclelis","doi":"10.5311/JOSIS.0.0.146","DOIUrl":"https://doi.org/10.5311/JOSIS.0.0.146","url":null,"abstract":"Recent developments in cyber-infrastructure along with the expanding democratization of the web underline the potential role of ontologies as effective means for unleashing the power of the semantic web. However, the broadening range of users and user needs has led to increasing calls for ‘lightweight’ ontologies very different in structure, expressivity and scope from the traditional foundational or domain-oriented ones. This paper outlines a conceptual model suitable for generating such micro-ontologies tailored to specific user needs and purposes, while avoiding the traps of relativism that ad-hoc efforts might engender. The model focuses on the notion of information decomposed into three ’views’: that of the measurements provided by the empirical world, that of semantics that provide the meaning, and that of the context within which the information is interpreted and used. Together these three aspects enable the construction of micro-ontologies, which correspond to user-motivated selections of measurements to fit particular, task-specific interpretations. The model supersedes the conceptual framework previously proposed by the author [5], which now becomes the semantic view. In it new role the former framework allows informational threads to be traced through a nested sequence of layers of decreasing semantic richness, guided by user purpose. ‘Purpose’ is here seen as both the interface between micro-ontologies and the social world that motivates user needs and perspectives, and as the primary principle in the selection and interpretation of information most appropriate for the representational task at hand. While exploratory, the model appears compatible with several other efforts in the field.","PeriodicalId":45389,"journal":{"name":"Journal of Spatial Information Science","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2009-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70769043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Movement patterns as reoccurring dynamical episodes of trajectories","authors":"S. Steidl","doi":"10.5311/JOSIS.0.0.151","DOIUrl":"https://doi.org/10.5311/JOSIS.0.0.151","url":null,"abstract":"","PeriodicalId":45389,"journal":{"name":"Journal of Spatial Information Science","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2009-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70769134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Negotiating routes - A pragmatic communication model for exchanging route instructions","authors":"Paul Weiser","doi":"10.5311/JOSIS.0.0.235","DOIUrl":"https://doi.org/10.5311/JOSIS.0.0.235","url":null,"abstract":"","PeriodicalId":45389,"journal":{"name":"Journal of Spatial Information Science","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2009-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70769517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Pérez‐Morales, F. Gomariz-Castillo, Pedro Pardo-Zaragoza
{"title":"Vulnerability of transport networks to multi-scenario flooding and optimum location of emergency centers: A GIS Approach","authors":"A. Pérez‐Morales, F. Gomariz-Castillo, Pedro Pardo-Zaragoza","doi":"10.5311/JOSIS.0.0.357","DOIUrl":"https://doi.org/10.5311/JOSIS.0.0.357","url":null,"abstract":"","PeriodicalId":45389,"journal":{"name":"Journal of Spatial Information Science","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2009-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70769865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Visibility and Urban Activity Location: The Small-World and Scale-Free Properties of Urban Visuospatial Networks","authors":"Asya Natapov, D. Czamanski, D. Fisher-Gewirtzman","doi":"10.5311/JOSIS.0.0.322","DOIUrl":"https://doi.org/10.5311/JOSIS.0.0.322","url":null,"abstract":"","PeriodicalId":45389,"journal":{"name":"Journal of Spatial Information Science","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2009-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70769629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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