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Algorithms and implementations to participate in Kaggle YouTube-8M Video Understanding Competition

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This project was done to participate in the YouTube-8M Video Understanding Competition on Kaggle.

Work

  • Implemented ML-kNN that supports tuning k (passing a list of k), File ml-knn.py
  • Implemented k-means that supports removing empty or small clusters during each iteration and supports Cosine and Euclidean distance, File kmeans.py
  • Implemented linear regression that does not require data to be shifted and supports tuning l2 regularization (passing a list of l2 reg. rates), Class LinearClassifier in linear_model.py
  • Implemented one-vs-rest logistic regression that supports class weights and instance weights. More importantly, it supports any feature transformation implemented in Tensorflow, Class LogisticRegression in linear_model.py
  • Implemented stable standard scale transformation that supports any feature transformation, function compute_data_mean_var in utils.py and example in rbf_network.py
  • Implemented multi-label RBF network that supports three-phase learning and experimented with the hyper-parameters, such as the number of centers and scaling factors, rbf_network.py
  • Implemented multi-layer neural networks and experimented with architecture, batch normalization and dropout and bagging, mlp_fuse_rgb_audio.py
  • Implemented inference that supports bagging many models, Class BootstrapInference in bootstrap_inference.py
  • Finally, the implementations can be easily adapted to other large datasets.

Presentation

See presentation.pdf

Paper

See http://oa.upm.es/55867/

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  • Python 82.0%
  • Jupyter Notebook 18.0%