By Gennady Andrienko, Natalia Andrienko (auth.), Vasily V. Popovich, Christophe Claramunt, Manfred Schrenk, Kyrill V. Korolenko P.E. (eds.)
This quantity includes the papers offered on the foreign Workshop “Information Fusion and Geographic details platforms” (IF&GIS’09) held in St. Petersburg, Russia in may possibly 2009. The workshop was once prepared via the St. Petersburg Institute for Informatics and Automation of the Russian Academy of Sciences (SPIIRAS). The workshop maintains a chain organised biannually, and draws teachers and industrials from quite a lot of disciplines together with laptop technological know-how, geography, statistics, arithmetic, hydrography, geomorphology, and environmental sciences. the target of this workshop is to supply a discussion board for cutting edge study orientated in the direction of Geographic details technological know-how and tech- logies and company info structures whose shut organization spotlight novel theoretical and functional demanding situations. The papers chosen via the overseas software Committee disguise a variety of cutting edge parts together with ontological and semantic ways for the illustration of geographical information, geographical information tracking, state of affairs administration and forecast, to rising purposes orientated to the maritime atmosphere, catastrophe administration and defense threats. whereas conventional issues of GIS meetings are good represented and nonetheless being complex, a number of new domain names look and rigidity the necessity for the improvement of flexible tracking structures and choice making platforms. whereas GIS have already got a de facto normal for geographical tracking and research, the papers approved during this quantity additionally illustrate numerous novel instructions of software whose goal is extra heavily orientated to technique modeling and choice making, and the place the character of the gadgets represented is revisited utilizing ontological and semantic approaches.
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Extra resources for Information Fusion and Geographic Information Systems: Proceedings of the Fourth International Workshop, 17-20 May 2009
Sample text
While not going into historical details of IT development for businesses let us note that an aggregate of research and development offers in the given area can be unified into one concept: corporate information systems (CIS). At present this term is not yet stable, and covers a whole range of issues related to automation of various kinds and scales. , the R/3 system developed by SAP. This paper proposes the concept based on theoretical and technological developments of SPIIRAS carried out during the last decade and aimed at forming a CIS.
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If the SOM is to be used as an alternative to k-means, one unit per desired cluster should be used. For that type of application, a one-dimensional SOM will usually provide the best results [9]. For exploratory data analysis, a larger map should be used. These are sometimes called emergent-SOM or ESOM [19]. Depending on the amount and variability of available data, a rule of thumb could be to use one unit for each 4–20 or more data patterns, but in some cases one might use more units than data patterns (to obtain very clear cut U-Matrices).
