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Topic: Indegree


In the News (Thu 31 Dec 09)

  
  MuPAD documentation   (Site not responding. Last check: 2007-11-03)
Graph::inDegree(G, Vertex) returns the indegree of the vertex Vertex in the Graph G, i.e., the number of edges [u,Vertex].
Graph::inDegree(G, [v1, v2,..., vn]) returns a table in which the keys are v1, v2,..., vn and the corresponding values are the indegrees.
The second and third table return all indegrees, but with two different calls (the second is redundant).
www.mupad.de /doc/30/de/Graph_inDegree.html   (195 words)

  
 Elementary Graph Algorithms
The algorithm for topological sort uses "indegrees" of vertices.
After the initial scanning to find a vertex of degree 0, we need to scan only those vertices whose updated indegrees have become equal to zero.
For all edges (U,V) update the indegree of V, and put V in the queue if the updated indegree is 0.
www.simpson.edu /~sinapova/LN250/L22-Topsort.htm   (501 words)

  
 [No title]
When you first calculate the indegrees of the vertices at the start of the algorithm, once you know a vertex has indegree 0, enqueue it.
When you look at the departing edges of that selected vertex and reduce the indegree of the target vertices of those edges, if an indegree reduces to 0, enqueue that vertex *right away*, while you still know that it is indegree 0.
If your graph is a DAG, you will always be replenishing the queue with new indegree 0 vertices (as you reduce the indegree counts of the target vertices of the departing edges of the vertex you selected), so the queue won't be empty until you have processed each vertex.
web.syr.edu /~yzhao07/Datastructure/topsort.html   (981 words)

  
 Tree_structure
It is named a "tree structure" because the graph looks a bit like a tree, even though the tree is generally shown upside down compared with a real tree; that is to say with the root at the top and the leaves at the bottom.
In graph theory, a tree is a connected acyclic graph (or sometimes, a connected directed acyclic graph in which every vertex has indegree 0 or 1).
An acyclic graph which is not necessarily connected is sometimes called a forest (because it is a set of trees).
www.brainyencyclopedia.com /encyclopedia/t/tr/tree_structure.html   (639 words)

  
 Grok command: indegree   (Site not responding. Last check: 2007-11-03)
>> indegree (contain) meat 3 cheese 2 pineapple 1
>> interesting = {"meat", "pineapple", "ham" } >> indegree (interesting, contain) meat 3 pineapple 1
We only see information about ingredients that are in the range of
swag.uwaterloo.ca /~nsynytskyy/grokdoc/commands/indegree.html   (66 words)

  
 Degree (graph theory) - Wikipedia, the free encyclopedia
In a directed graph, an edge has two distinct ends: a head (the end with an arrow) and a tail.
The sum of head endpoints count toward the indegree and the sum of tail endpoints count toward the outdegree.
The image to the right has the following degrees:
en.wikipedia.org /wiki/Indegree   (402 words)

  
 Digraphs
For digraphs, we define the indegree of a vertex to be the number of arrows pointing in toward the vertex and the outdegree of a vertex to be the number of arrows pointing out away from the vertex.
Notice that the START vertex has arrows pointing away from it toward all tasks that could be the first task (as determined by the precedence relations).
Any vertex with an indegree of 0 could be the first task of the project.
www.ctl.ua.edu /math103/scheduling/digraphs.htm   (677 words)

  
 models   (Site not responding. Last check: 2007-11-03)
A special case of this model has the indegree and outdegree being the same.
This is a modified version of Model A. Two biased coins are used to generate different powers for indegree and outdegree distributions.
If both tosses yield "tail"s, a new edge uv is added as in MODEL A. The probability that u is chosen is proportional to the indegree of u, and the probability that v is chosen is proportion to the outdegree of v.
math.ucsd.edu /~llu/models.html   (512 words)

  
 [No title]   (Site not responding. Last check: 2007-11-03)
and it redefines the attribute list of node by adding 2 new attributes: - parse.indegree (optional; indegree of this node), - parse.outdegree (optional; outdegree of this node).
Extends the attribute group graph.extra.attrib (which takes part in the attribute list of ) by adding the attribute group graph.parseinfo.attrib which is defined below.
This group consists of two attributes - parse.indegree (optional; indegree of this node), - parse.outdegree (optional; outdegree of this node).
graphml.graphdrawing.org /xmlns/1.0rc/graphml-parseinfo.xsd   (392 words)

  
 [No title]   (Site not responding. Last check: 2007-11-03)
A first-pass strategy: Eliminate vertices with indegree zero and their associated (outgoing) arcs (thus, reducing indegrees of the connected nodes) - after attaching an ordering-number (for output of topo-sort ordering) to these nodes, keep doing it for number-of-nodes times.
A smarter way: notice indegrees become zero for only a subset of nodes in a pass, and all nodes need not be checked.
An implementation of this idea could be done by using a queue: Push those nodes whose indegree have become zero (as you change that value), at the back of a queue.
www.cs.fit.edu /~dmitra/Algorithms/GRAPH.doc   (1368 words)

  
 Directed Graphs
Note that all of the streets in this directed graph are one-way; a two-way street would have arcs in both directions connecting vertices corresponding to neighboring intersections.
In a directed graph, vertices have both "indegrees" and "outdegrees": the indegree of a vertex is the number of arcs leading to that vertex, and the outdegree of a vertex is the number of arcs leading away from that vertex.
A vertex with an indegree of 0 is called a source (since one can only leave it) and a vertex with an outdegree of 0 is called a sink (since one cannot leave it).
www.rwc.uc.edu /koehler/comath/33.html   (714 words)

  
 Degree Functions for a Network   (Site not responding. Last check: 2007-11-03)
The maximum indegree of the vertices of the network N. This function returns two values: The maximum indegree, and the first vertex of N having that degree.
The minimum indegree of the vertices of the network N. This function returns two values: The minimum indegree, and the first vertex of N having that degree.
The number of edges of the form [u, v] where u is a vertex belonging to a network N. OutNeighbours(u) : GrphVert -> { GrphVert }
www.math.wayne.edu /answers/magma2.10/htmlhelp/text1274.htm   (418 words)

  
 [No title]   (Site not responding. Last check: 2007-11-03)
I suggest that we add an 'indegree' variable and a 'marked' variable to the
an 'indegree' of 0 and each new destination with an 'indegree' of 1, and we'll
increment the indegree of every additional destination mapping by 1.
www.csc.calpoly.edu /~lmyers/2005sum/Cpe103/p7.html   (302 words)

  
 5 Constellation: Linguistic Semantic Networks   (Site not responding. Last check: 2007-11-03)
The observed edge density has been E Each path is a linear directed graph: i nodes connected by links, where each node has indegree and outdegree 1, except that the source node has no incoming link and the sink node has no outgoing link.
These nodes are all drawn nested within the boundaries of the tan level 0 box.
Each of them has indegree 1 and outdegree 0, connected to the level 0 node but not to each other.
graphics.stanford.edu /papers/munzner_thesis/html/node10.html   (9931 words)

  
 TemplatevertexInfo< T > class Reference   (Site not responding. Last check: 2007-11-03)
References vertexInfo< T >::inDegree, and vertexInfo< T >::occupied.
References vertexInfo< T >::inDegree, vertexInfo< T >::occupied, and vertexInfo< T >::vtxMapLoc.
Generated on Mon May 10 14:20:41 2004 by
www.ecst.csuchico.edu /~kaos/sp04/program4/classvertexInfo.html   (47 words)

  
 [No title]   (Site not responding. Last check: 2007-11-03)
:: polynomialT(int indegree, const T *incoeff, const char *invarname) { // check indegree for(; (indegree>0) && (incoeff[indegree]==0); indegree--); degree = indegree; coeff = new T[degree+1]; for(; indegree>=0; indegree--) // copy over coefficients coeff[indegree] = incoeff[indegree]; polytemp
:: setc(const T *cvals, int indegree) { int i; int d; assert(indegree>=0); // determine the actual degree for(d = indegree; (cvals[d] == 0) && (d > 0); d--) ; indegree = d; // make just enough room for the array resize(indegree); // copy over for(i = 0; i
:: buildspace(int indegree) { int i; assert(indegree>=0); if(indegree > degree) { resize(indegree); } return *this; } // Overloaded operators // polynomial addition template
www.engineering.usu.edu /ece/faculty/tmoon/eccbook/FILES/polynomialT.cc   (1927 words)

  
 TopologicalSorter.java
* indegree, print it out, and decrease by 1 the indegree of all
// initialize the queue of nodes with 0 indegree
// repeatedly find a node with 0 indegree
www.cs.princeton.edu /introcs/44stack/TopologicalSorter.java.html   (167 words)

  
 [No title]   (Site not responding. Last check: 2007-11-03)
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