Browsing Research Reports by Title
Now showing items 630-649 of 713
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The European Union and Central and Eastern European CountriesIntra-domain routing protocols are based on Shortest Path First (SPF) routing, where shortest paths are calculated between each pair of nodes (routers) using pre-assigned link weights, also referred to as link metric. These link weights can be modified by network administrators in accordance with the routing policies of the network operator. The operator's objective is usually to minimize traffic congestion or minimize total routing costs subject to the traffic demands and the protocol constraints. However, determining a link weight combination that meets a network operator's objectives is a difficult task. In this paper, we study the link weight optimization problem in intra-domain networks. This problem is proved to be NP-hard with hard protocol constraints, e.g., a flow is evenly distributed along the shortest paths between its origin and destination nodes. We present two fast heuristic approaches to generate efficient link metrics for intra-domain routing. Some promising experimental results are reported.
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The Global Entrepreneurship Monitor : Executive Report Belgium and Flanders 2001It is well-known that Belgium in general and Flanders in particular is a country or region where SMEs are the backbone of the economy. Flanders is therefore often thought of as a very entrepreneurial region. Yet, when looking at the proportion of adults that is actively trying to set up a company or business initiative - thus measuring the renewal of a region's economy - the Global Entrepreneurship Monitor 2000 has found that Belgium was not entrepreneurial compared to other countries worldwide. This is confirmed in 2001: of the 29 countries that participated in the research endeavor in 2001, Belgium was the least entrepreneurial. Flanders is even less entrepreneurial than Belgium on average , the Brussels region is more entrepreneurial than both Flandres and Wallonia, thereby increasing the Belgian average somewhat. This confirmation of last year's finding is alarming. Indeed, the very low number of business start-up initiatives today is likely to lead to slow economic growth in the future.
