Github user gallenvara commented on a diff in the pull request:
https://github.com/apache/flink/pull/1956#discussion_r63856679
--- Diff:
flink-libraries/flink-gelly/src/main/java/org/apache/flink/graph/library/HITSAlgorithm.java
---
@@ -46,40 +46,89 @@
* represented a page that is linked by many different hubs.
* Each vertex has a value of Tuple2 type, the first field is hub score
and the second field is authority score.
* The implementation assumes that the two score are the same in each
vertex at the beginning.
+ * If the number of vertices of the input graph is known, it should be
provided as a parameter
+ * to speed up computation. Otherwise, the algorithm will first execute a
job to count the vertices.
* <p>
*
* @see <a href="https://en.wikipedia.org/wiki/HITS_algorithm";>HITS
Algorithm</a>
*/
public class HITSAlgorithm<K, VV, EV> implements GraphAlgorithm<K, VV, EV,
DataSet<Vertex<K, Tuple2<DoubleValue, DoubleValue>>>> {
+ private final static int MAXIMUMITERATION = (Integer.MAX_VALUE - 1) / 2;
+ private final static double MINIMUMTHRESHOLD = 1e-9;
+
private int maxIterations;
+ private long numberOfVertices;
+ private double convergeThreshold;
+
+ public HITSAlgorithm(int maxIterations) {
--- End diff --
Done!
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