Using compact GML to deploy interactive maps on mobile devices

As users get connected with new-generation smart programmable phones and Personal Digital Assistants, they look for geographic information and location-aware services. In such a scenario, developers need infrastructures and standards in order to provide geographic data and cartographic tools to a wide set of applications and small mobile devices. GIS market offers a rich set of powerful tools for geographic information management, but a simple and lightweight protocol to easily add cartographic functionalities to mobile applications is still missing. This paper presents the compact Geographic Markup Language (cGML), a custom version of GML tailored for mobile devices. By using small tags, server side pre-projected and pre-scaled coordinates, it allows development and deployment of map-based software for mobile phones and PDAs with strong constraints on connection, CPU and memory

Algorithm for selection of contents in a location-based system

This article presents a geo-referenced and personalized radio system for mobile terminals that works over wireless broadband networks. The architecture of the system allows the combination of thematic contents that are chosen by the user and contents with local information that depends in the first instance on GPS coordinates, velocity and direction of travel of the user and in the second instance on the preferences of the user, who can configure its terminal according to its interests. The requesting, downloading and playing of local information is managed by a predictive algorithm that takes into account not only the position of the terminal or the preferences of the user but also other features as the area where the information must be played and the loading time.Ministerio de Educación y Ciencia TIN 2004-07246-C03-0

Improving teacher-student contact in a campus through a location-based mobile application

This paper presents a new mobile micro-broadcast (or near-me) Location-Based Service designed to promote face-to-face communication among users located within a given geographical area such as a University campus. Because the communication services provided are time dependent, the application decides whom to contact based on the geographic distance between the active subscribers of the service and the sender. The paper also presents some preliminary results of prototype evaluation

Impact of Geospatial Reasoning Ability and Perceived Task-Technology Fit on Decision-Performance: The Moderating Role of Task Characteristics

Consumer, business and governmental entities increasingly rely on spatial decision support systems (SDSS) for decision-making involving geospatial data. Understanding user- and task-characteristics that impact decision performance will allow developers of such systems to maximize geospatial decision-making performance. Furthermore, scholars will benefit from a more comprehensive understanding of what specific characteristics influence decision-making as such knowledge can guide future research in the decision sciences domain. This paper provides a synthesis of geospatial reasoning ability, task-complexity, geovisualization and decision-performance research. A two-factor experiment designed to measure the impact of geospatial reasoning ability on decision-performance is performed. Two treatments, problem-complexity and map-complexity, are investigated for their moderating role on decision-performance. A partial least squares analysis is performed to assess the experiment results. Cognitive Fit Theory is used as the theoretical framework of this study and is extended, along with research in decision-performance and geospatial reasoning ability

The cgml: a xml language for mobile cartography

Increasing processing power and storage capabilities encourage systematic adoption of high-end mobile devices, such as programmable cellular phones and wireless-enabled PDA to implement new exciting applications. The performances of modern mobile devices are bringing innovative scenarios, based on position awareness and ambient intelligence paradigms. The market is moving from old 'Wireless Applications' approach to Mobile Computing, which aims to exploit mobile host capabilities. This paper presents the compact Geographic Markup Language (cGML), an XML-based language defined to enable design and development of LBS applications specific for mobile devices, and an example of client-server architecture using it

Compact gml: merging mobile computing and mobile cartography

The use of portable devices is moving from "Wireless Applications", typically implemented as browsing-on-the-road, to "Mobile Computing", which aims to exploit increasing processing power of consumer devices. As users get connected with smartphones and PDAs, they look for geographic information and location-aware services. While browser-based approaches have been explored (using static images or graphics formats such as Mobile SVG), a data model tailored for local computation on mobile devices is still missing. This paper presents the Compact Geographic Markup Language (cGML) that enables design and development of specific purpose GIS applications for portable consumer devices where a cGML document can be used as a spatial query result as well

The quest e-tourism mobile application

Currently, tourists uses the mobile application for searching the attractions information while they are traveling.A lot of information such as the current location, the nearest attraction, or the attraction history are searched in order that the tourists can get as much as information for their travel.However, many applications provide the information based on the current location of the users.The attractions around the users are shown regarding to the distance and the user filter, not by their details.In each city, there are legends about each attractions of their own. The relationships among the attractions are connected with several legends. The tourist can visit the attraction list according to the legends as their quest in a game.In the computer games, there is a set of activities which players have to achieve in order to get some rewards, this set of activities is called as the quest.The quest makes the players feels more delight when they achieve the rewards.In this paper, the quest concept is applied with the mobile tourist.The tourist will get the quest when they are traveling. The mobile application will provide the quest according to the city myth which leads a series of attractions. The tourists can keep the track for each quest by tracking the map, and getting the attraction information in the application.In addition, the tourist can get the next attraction information based on the myths of each city.These will help the tourists understand the cultural and history of the city with the joyfulness of playing game in the same time

CSM-428: Techniques used for Location-based Services: A Survey

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