All Projects : Mahout : Matrix (Component)

Description: Matrix/Vector related issues


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Road Map

Unreleased 0.1 ( 07/Apr/09 | Release Notes )
Progress: 
  8 of 8 issues have been resolved
First Minor Release
   Bug MAHOUT-75 FIXED asFormatString tests fail Critical Closed
   Bug MAHOUT-23 FIXED Getting a row or column from a matrix view gives a row or column from the wrapped matrix. Major Resolved
   Bug MAHOUT-118 FIXED Mahout needs to respect the file system type when getting a FileSystem for an input or output path Major Closed
   Improvement MAHOUT-50 FIXED Vector extends Writable Major Closed
   New Feature MAHOUT-41 FIXED VectorWritable Major Closed
   New Feature MAHOUT-86 FIXED A New Vector Assignment Operator Minor Resolved
   Bug MAHOUT-25 FIXED Minor bugs/issues from code inspection Minor Resolved
   Improvement MAHOUT-44 FIXED Override zSum and dot for SparseVector Minor Closed
Unreleased 0.2 ( 18/Nov/09 | Release Notes )
Progress: 
  7 of 7 issues have been resolved
   Bug MAHOUT-159 FIXED SparseVector and DenseVector hashCode does not conform to the Java standard Critical Closed
   Task MAHOUT-35 FIXED Benchmark performance of Vector.iterator() when reusing Element instances. Major Resolved
   Improvement MAHOUT-161 FIXED Add Vector.norm to compute k-norms of vectors Major Closed
   Bug MAHOUT-181 FIXED DistanceMeasure is broken: iteration is done over nonZeroElements of v1.plus(v2), not v1.minus(v2) Major Closed
   Bug MAHOUT-118 FIXED Mahout needs to respect the file system type when getting a FileSystem for an input or output path Major Closed
   Improvement MAHOUT-121 FIXED Speed up distance calculations for sparse vectors Major Closed
   Improvement MAHOUT-77 WON'T FIX DistanceMeasure calculation slow for SparseVector Minor Closed
Unreleased 0.3 ( Release Notes )
Progress: 
  2 of 10 issues have been resolved
   Improvement MAHOUT-206 UNRESOLVED Separate and clearly label different SparseVector implementations Major Open
   Bug MAHOUT-193 UNRESOLVED SparseVectors created with the wrong cardinality in SparseMatrix Major Open
   Improvement MAHOUT-165 UNRESOLVED Using better primitives hash for sparse vector for performance gains Major Open
   Bug MAHOUT-208 UNRESOLVED Vector.getLengthSquared() is dangerously optimized Major Open
   Bug MAHOUT-207 UNRESOLVED AbstractVector.hashCode() should not care about the order of iteration over elements Major Patch Available
   New Feature MAHOUT-155 UNRESOLVED ARFF VectorIterable Minor Open
   Improvement MAHOUT-209 UNRESOLVED Add aggregate() methods for Vector Minor Open
   Improvement MAHOUT-205 UNRESOLVED Pull Writable (and anything else hadoop dependent) out of the matrix module Minor Open
   Improvement MAHOUT-201 DUPLICATE OrderedIntDoubleMapping / SparseVector is unnecessarily slow Major Resolved
   Improvement MAHOUT-182 FIXED New helper methods for Matrix: times(Vector), timesSquared(Vector), numRows() and numCols() Minor Resolved

Preset Filters


Component Summary

Open Open 13
   41%
Resolved Resolved 6
   19%
Closed Closed 10
   31%
Patch Available Patch Available 3
   9%

Open Issues

By Priority
Major Major 9
   56%
Minor Minor 7
   44%

By Assignee
Grant Ingersoll 4
   25%
Jeff Eastman 1
   6%
Karl Wettin 1
   6%
Ted Dunning 1
   6%
Unassigned 9
   56%

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