{"title":"A Distributed GIS for Managing Shanghai Landscape Resources","authors":"Yue Zhu, C. Yang, David W. S. Wong, M. Kafatos","doi":"10.1080/10824000509480598","DOIUrl":"https://doi.org/10.1080/10824000509480598","url":null,"abstract":"Abstract Given the decentralized computing environment for managing landscape resources in Shanghai, China, this paper introduces a Distributed GIS application to support a more efficient and effective approach for resource management. Four critical computing issues related to such a Distributed GIS are addressed: (1) large image management, (2) time dimension management, (3) network communication of geospatial information within the computer network, and (4) spatial data access through a spatial data engine. This paper suggests possible solutions to these four issues and illustrates how general landscape management functions are implemented through a Distributed GIS. This paper also offers some insights on the design and development of a Distributed GIS.","PeriodicalId":331860,"journal":{"name":"Geographic Information Sciences","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127951618","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 Framework for Developing Web-Service-Based Intelligent Geospatial Knowledge Systems","authors":"L. Di","doi":"10.1080/10824000509480597","DOIUrl":"https://doi.org/10.1080/10824000509480597","url":null,"abstract":"Abstract This paper discusses an interoperable system framework for developing web-service-based intelligent geospatial knowledge systems. This type of systems facilitates personalized, on-demand geospatial information or knowledge discovery and dissemination. The system will be able to answer “what if” questions by automatically and intelligently chaining individual service modules to form a complex geospatial processing model, matching the input data with the model, and executing the processing model to deliver answers to the users. The system also has the capabilities to evolve and improve by itself. The framework is based on the geo-object and geo-tree concepts, which simulate the geospatial processing models constructed by the experts in geospatial knowledge discovery. The framework also relies on the geospatial interoperability standards, developed primarily by the Open Geospatial Consortium (OGC), recent progress in semantic Web technology and interoperable geospatial Web services. The geo-object and geo-tree concepts provide the mechanism to unify the representation of geospatial data, information, and knowledge, capture the process of geospatial knowledge discovery, manage geospatial knowledge, and enable the dynamic reuse of geospatial knowledge in multiple applications. The framework supports (1) standards-based automated geospatial data and services discovery and access; (2) domain knowledge driven intelligent geo-object decomposition for geo-tree/workflow construction; (3) automated geospatial web service chaining, binding, and execution based on the geo-tree/workflow; and (4) management of workflows and geospatial models.","PeriodicalId":331860,"journal":{"name":"Geographic Information Sciences","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126765638","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":"Extending Distributed GIS to Support Geo-Collaborative Crisis Management","authors":"Guoray Cai","doi":"10.1080/10824000509480595","DOIUrl":"https://doi.org/10.1080/10824000509480595","url":null,"abstract":"Abstract Crises are often complex, geographical scale problems that require professionals to work in teams while dealing with a large amount of geographic information for decision making. However, current geospatial technologies do not directly support group entities working with geographic information–they impede rather than facilitate human-human collaborations and communication. Towards the goal of making GIS “collaboration-friendly,” this paper explores the potentials of extending distributed GIS with groupware and intelligent communication agents to support geo-collaborative crisis management by teams. Members of such a team are often geographically distributed and play different roles. In addition to the architectural choice, special attention was given to the computational approach to enable collaborative geographic information dialogues in spatial decision-making contexts. Collaboration requires representation and reasoning on a team mental model, which must be constructed from dialogue contexts and shared knowledge. An implementation of an intelligent, multimodal, multi-user geographic information environment, called GCCM_Connect, is presented as a proof-of-concept for the proposed architecture.","PeriodicalId":331860,"journal":{"name":"Geographic Information Sciences","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134020783","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":"Evolution and Computing Challenges of Distributed GIS","authors":"X. M. Chen, C. Yang, Songqing Chen","doi":"10.1080/10824000509480601","DOIUrl":"https://doi.org/10.1080/10824000509480601","url":null,"abstract":"Abstract As a new development based on GIS and distributed computing, Distributed GIS (DGIS) was introduced and propelled by both the demands for GIS in a distributed environment and the advancements of computing technologies. Demanding for new geospatial applications presents new challenges for DGIS, and the solution to overcome the challenges in turn leads to the advancement of DGIS. This article examines two important aspects of DGIS: its applications and the computing challenges. This paper reviews the three stages of evolution in DGIS application development and further examines its relevant computing challenges, such as system performance, user interface, interoperability, data integrity, spatial data mining, and data and system security.","PeriodicalId":331860,"journal":{"name":"Geographic Information Sciences","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126727796","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}
Follin Jean-Michel, Bouju Alain, B. Frederic, Boursier Patrice
{"title":"Multi-Resolution Geospatial Data in Mobile System","authors":"Follin Jean-Michel, Bouju Alain, B. Frederic, Boursier Patrice","doi":"10.1080/10824000409480662","DOIUrl":"https://doi.org/10.1080/10824000409480662","url":null,"abstract":"Abstract Geographic Information Systems (GIS) have to support multi-resolution data in order to represent the real world at different scales. This need is also observed in the emerging field of mobile GIS. In this paper, we propose solutions for the management and visualization of multi-resolution vector data in a mobile spatial information visualization system. We first review the basic priciples of mobile GIS and management of multi-resolution data, and we mention various works that have already been conducted in the areas pertaining to our own research and development works. We then present the client-server architecture and the management approach adopted in the system. Our aim is to reduce the amount of data exchanged between the client and the server. Our solution is based on the use of increments in a multiscale database. In our database architecture, datasets for different predefined scales are precomputed and stored on the server side. Increments correspond to the difference between two datasets with different resolutions and are transmitted in order to increase or decrease the level of detail of information on the client upon request. They allow reusing data which are already present on the client side. They imply to take into consideration the different generalization operators, their mapping configurations and their modifications on objects representations. Finally, we describe our approach for presenting multi-resolution data: an adapted one relying on “intelligent zoom”. It consists in measuring the density of data at different resolutions and for different scales, and finding a balanced solution taking account of resolution and scale which respects the well-known “principle of constant density of data”.","PeriodicalId":331860,"journal":{"name":"Geographic Information Sciences","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114947411","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":"Proximity Based Tools that Make Us Smart","authors":"B. Anders, Hägglund Ulrika, Johansson Niklas","doi":"10.1080/10824000409480661","DOIUrl":"https://doi.org/10.1080/10824000409480661","url":null,"abstract":"Abstract The physicalisation of the information landscape, the fact that people are being more and more mobile in the sense of having constant closeness to the digital information world, and an increased information pressure on people in their everyday life form the starting point for the work that this paper presents. This development concerns the society, both at a technical and a social level. A theoretical platform for studying how people use the environment to become smarter, with its basis in distributed cognition is presented. The paper presents a toolbox with tools aimed to helping people to cope with the increased information pressure. With this toolbox a design space with five dimensions is introduced: access, anchor, proximity, affect, and abstraction.","PeriodicalId":331860,"journal":{"name":"Geographic Information Sciences","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116670413","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":"An Introduction to the Special Issue on LBS and GIS","authors":"Jiang Bin, Zipf Alexander","doi":"10.1080/10824000409480659","DOIUrl":"https://doi.org/10.1080/10824000409480659","url":null,"abstract":"Currently geospatial information (GI) technology can be characterized by two important developments: ( I ) it goes beyond the application stages towards more conceptual and theoretical developments, dealing with more profound issues around geographic information science. and (2) it continues to be application or service oriented i n serving our modern society, hence location-based services (LBS) arisen out of convergence of GI technology, the Internet, mobile wireless telecommunication and positioning technologies. The convergence of GIS and various technologies has been existing since the widespread availability of the Inteinct, and it is reflected in a series of GIS tErmS such as Internet GIs, web GIS, wireless GIS, and mobile GIs. Nowadays it appears that all the “GIS” come to a pot with a more fashionable term LBS.","PeriodicalId":331860,"journal":{"name":"Geographic Information Sciences","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116029134","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":"Performance Issues of GML Vector Data on Wireless Access Networks","authors":"Lee Eun-kyu, Kim Mijeong, Kim Minsoo, Joo In-Hak","doi":"10.1080/10824000409480664","DOIUrl":"https://doi.org/10.1080/10824000409480664","url":null,"abstract":"Abstract With regarding to web GIS, Open Geospatial Consortium promotes Web Feature Service allowing a client to retrieve geospatial data encoded in GML which is a modeling language to encode the semantics, syntax and schema of geospatial information resources. Even though GML provides benefits for geographic description, it is too heavy for mobile devices to process. In order to address the issue, this paper evaluates a GML service with a WFS server and GML viewers. Through this paper, we analyze properties of GML geospatial data and effects on wireless environments.","PeriodicalId":331860,"journal":{"name":"Geographic Information Sciences","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122473031","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":"The Media and the Messages of Location-Based Services (LBS): Death of Distance or the Revenge of Geography?","authors":"D. Sui","doi":"10.1080/10824000409480668","DOIUrl":"https://doi.org/10.1080/10824000409480668","url":null,"abstract":"Abstract With the dramatic increase of mobile phone users, coupled with steady innovations in wireless/embedded computing and communications, the past five years have witnessed the emergence of various kinds of location-based services (LBS). The backbone of LBS relies on an integration of multiple spatial and communication technologies, including (but not limited to) GPS, GIS, wireless communication, mobile computing, the Internet, etc. The emergence of LBS provides unprecedented business opportunities as well as enormous challenges for society. This paper reconceptualizes LBS as new media. By doing so, a synthetic framework based upon Marshall McLuhan's laws of the media is developed. The media and messages of LBS are discussed through a preliminary tetradic analysis, followed by a discussion on the applicability of Asimov's laws of robotics in guiding the development of LBS. The paper concludes by arguing that the way to cope with the paradoxes of technological innovations is a major challenge in the information age.","PeriodicalId":331860,"journal":{"name":"Geographic Information Sciences","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128917625","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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