Allowing big data in ML - __int64 changes (Feature #256)

Added by aklaway - almost 15 years ago. Updated about 12 years ago.

Status:Cancelled Start date:
Priority:Low Due date:
Assignee:Leonid Beynenson % Done:

0%
Category:ml
Target version:2.4.4
Difficulty: Pull request:https://github.com/Itseez/opencv/pull/32

Description

I'm traying to train an AdaBoost with a very big matrix (30000 samples of 80000 dimensions). I have compiled the OpenCV in 64 bits. But, in many places of the code the types are int (Cxcore, ML...). So, it is very small and it doesn't allow to use so big matrix. There is need of change many of the int types to +int64.

Is it expected to be changed?

Related issues

related to Patch #2004: Machine Learning, Problem with large datasets Done 2012-05-31

Associated revisions

Revision 014a500f
Added by Andrey Kamaev about 12 years ago

Merge pull request #256 from znah:2.4

Revision 5cae90c2
Added by Vadim Pisarevsky almost 10 years ago

Merge pull request #256 from vpisarev:calib3d_fixes

History

#1
Updated by anonymous - almost 15 years ago

See opencv/apps/traincascade for an example on how to use existing MLL Adaboost to train classifiers on a huge out-of-memory amount of data

  • Status deleted (Open)

#2
Updated by Alexander Shishkov about 13 years ago

  • Description changed from I'm traying to train an [[AdaBoost]] with a very big matrix (30000 sample... to I'm traying to train an AdaBoost with a very big matrix (30000 samples of... More

#3
Updated by Alexander Shishkov almost 13 years ago

  • Status set to Open

#4
Updated by Vadim Pisarevsky almost 13 years ago

let's lower priority of the task with no particular target version set. Normally, when there is a huge amount of training data, it's always possible to subsample it in some way, so it's not a critical feature without which one can not proceed.

  • Priority changed from High to Low

#5
Updated by Vadim Pisarevsky about 12 years ago

  • Target version deleted ()
  • Assignee changed from Vadim Pisarevsky to Leonid Beynenson

#6
Updated by Vadim Pisarevsky about 12 years ago

  • Pull request set to https://github.com/Itseez/opencv/pull/32

#7
Updated by Vadim Pisarevsky about 12 years ago

see #2004 and the pull request https://github.com/Itseez/opencv/pull/395 that solves the problem

  • Status changed from Open to Cancelled

#8
Updated by Kirill Kornyakov about 12 years ago

  • Target version set to 2.4.4

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