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All Projects → pangwong → Pytorch Multi Label Classifier

pangwong / Pytorch Multi Label Classifier

A pytorch implemented classifier for Multiple-Label classification

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python
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pytorchclassifier

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pytorch-multi-label-classifier

Introdution

A pytorch implemented classifier for Multiple-Label classification. You can easily train, test your multi-label classification model and visualize the training process.
Below is an example visualizing the training of one-label classifier. If you have more than one attributes, no doubt that all the loss and accuracy curves of each attribute will show on web browser orderly.

Loss Accuracy

Module

  • data

    data preparation module consisting of reading and transforming data. All data store in data.txtand label.txt with some predefined format explained below.

  • model

    scripts to build multi-label classifier model. Your model templets should put here.

  • options

    train test and visualization options define here

  • util

    • webvisualizer: a visdom based visualization tool for visualizing loss and accuracy of each attribute
    • util: miscellaneous functions used in project
    • html: used in webvisualizer.

  • test

    • mnist: mnist dataset arranged as defined data format.
    • celeba: exactract some of attributes of CelebA dataset

Multi-Label Data Format

Data Format Explanation.

  • label.txt

 Store attribute information including its name and value. label.txt example. Lines in label.txt stack as follows:

  • For each attribute :
    • number of attribute values ; id of attribute ; name attribute
    • For each attribute value belonging to current attribute :
      • id of attibute_value ; name of attribute value

 Note: mind the difference between attribute and attribute value.

  • data.txt

 Store objects information including attribute id and bounding box and so on. Each line is one json dict recording one object. data.txt example  

  • "box":object boundingbox. 'x': top_left.x , 'y':top_left.y, 'w': width of box, 'h': height of box.
  • "image_id": image identifier. An image content dependent hash value.
  • "box_id": object identidier. Combine image_id, box['x'], box['y'], box['w'], box["h"] with _.
  • "size": image width and height. Used for varifying whether box is valid.
  • "id": list of ids. Store multi-label attributes ids, the order is the same as the attributes' order in label.txt

Dependence

  • Visdom 0.1.7.2
  • Pytorch 0.3.1.post2

TODO

  • [ ] Snapshot loss and accuracy records
  • [ ] Support visualize multi top K accuracy
  • [x] Support model finetuning
  • [x] Complete test module
  • [ ] Add switch to control loss and accuracy curves displaying on one plot or multiple
  • [x] Train and Test Log

Reference

Part of codes and models refer to some other OSS listed below for thanks:

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