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Michal Migurski's Reblog: Published items tagged with "academic" (items 1 to 25)

Michal Migurski's Reblog

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Jan 25, 2010

 
"We present a route planning technique solely based on the concept of node contraction. We contract or remove one node at a time out of the graph and add shortcut edges to the remaining graph to preserve shortest paths distances. The resulting contraction hierarchy (CH), the original graph plus shortcuts, also defines an order of 'importance' among all nodes through the node selection. We apply a modified bidirectional Dijkstra algorithm that takes advantage of this node order to obtain shortest paths. The search space is reduced by relaxing only edges leading to more important nodes in the forward search and edges coming from more important nodes in the backward search. Both search scopes eventually meet at the most important node on a shortest path."

Aug 25, 2009

 
James Heilman and Patrick Jackson: "Human history provides us with a dearth of cases of liberal societies confronting equally powerful non-liberal others, and no cases of liberal societies confronting non-liberals of incontrovertibly superior power. This is where Banks' work can be perhaps the most useful. ... Unlike in our actual history, the liberal Culture encounters a number of Others of equal or superior power throughout its experiences in the galaxy. As such, Banks' work functions as a systematic examination of the 'problem of the Other' in liberal societies that goes beyond factual experience in a way that is perhaps unique to a genre like science fiction...."

Feb 15, 2009

 
Katherine Behar: "For our purposes, it is important to understand how capture makes online mapping different from traditional cartography. ... Agre's vocabulary makes patent that the 'Googlization of Everything' is a two-fold process of informatically capturing human activities. First, this means acquiring offline cultural sources as data and integrating that data into the informational model known as cyberspace. Second, it means acquiring clickstreams as data and modeling an economic reality to make that data parsable and profitable."