DenseVector seems can't be writable
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Key: HAMA-63
URL: https://issues.apache.org/jira/browse/HAMA-63
Project: Hama
Issue Type: Improvement
Components: mapred
Reporter: Edward J. Yoon
Assignee: Edward J. Yoon
Fix For: 0.1.0
DenseVector have an operation methods. BTW, it will be overwrited by
iterator.next() while run on the map/reduce. So, first.equals(second) returns
true as below. It's a problematic.
public void reduce(IntWritable key, Iterator<DenseVector> values,
OutputCollector<IntWritable, VectorUpdate> output, Reporter reporter)
throws IOException {
DenseVector first = values.next();
DenseVector second = values.next();
first.equals(second); // true
}
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