نتایج جستجو برای: geographical information
تعداد نتایج: 1192878 فیلتر نتایج به سال:
Place is a concept that can hardly be formally captured at the moment, as it unclear how instances of places represented and conclusions about practically drawn by technological means. Geographical Information Science scholars hence tend to use term ‘Place’ even when, in fact, they presume paradigm similar one assumed for Geometrical Space. As result, Space thematic information mostly treated s...
This paper presents the 2005 MIRACLE’s team approach to Cross-Language Geographical Retrieval (GeoCLEF). The main goal of the GeoCLEF participation of the MIRACLE team was to test the effect that geographical information retrieval techniques cause to information retrieval. The baseline approach is based on the development of named entity recognition and geospatial information retrieval tools an...
People show biases or distortions in their geographical judgments, such as mistakenly judging Rome to be south of Chicago (the Chicago-Rome illusion). These errors may derive from either perceptual heuristics or categorical organization. However, previous work on geographic knowledge has generally examined people's judgments of real-world locations for which learning history is unknown. This ar...
This paper places geographical information systems (GZS) in the context of information systems generally and spe@cally illustrates how GIS may be classified by adapting an earlier taxonomy of information systems. The recent literature on information systems taxonomies is critically reviewed and an earlier taxonomy is tested and applied against several case study organisations who use GIS. It is...
Geographical entities often appears in very different forms in text collections, such as when a foreign name is used instead of the English one, or when the citation of some region or place omits the name of a larger geographical entity containing them. This is a known problem in the field of Information Retrieval. The use of an ontology like WordNet can help in addressing this issue. In this p...
In this paper we present an approach to conceiving of, constructing and comparing the concepts developed and used by geographers, environmental scientists and other earth science researchers to help describe, analyze and ultimately understand their subject of study. Our approach is informed by the situations under which concepts are conceived and applied, captures details of their construction,...
This paper introduces a framework for the evaluation of geographic information (GI), divided into representational and communicative aspects. The representational component is concerned with how ‘real-world’ phenomena situated in space and time come to be represented or modelled in GI, considered at ontological, modelling and system levels. The communicative component of GI is concerned with ho...
Today remote sensing and Geographical Information Systems (GIS) appear quite regularly in the media. Geographical Information Systems are credited with almost magical qualities, whereas "cutting edge" satellite imagery is reputed to be able to do remarkable things such as, for example, reading from space the license plate of a military vehicle. It does not take much imagination to envision how ...
The increasingly widespread use of Geographical Information Systems (GISystems, widely known as GIS) has meant that a version of ‘geography’ has been exported to many other disciplines and walks of life where this technology has been found to be useful. As an undergraduate, one of us read Applied Geography by Dudley Stamp (Stamp, 1960). It is full of ideas and examples of the applications of ge...
One of the most obvious technologies behind Location Based Services (LBS) is positioning, with the most widely recognized system being the Global Positioning System (GPS). There are, however, other means of positioning in addition to GPS. These other technologies are network based positioning and typically rely on various means of triangulation of the signal from cell sites serving a mobile pho...
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