An Optimized K-Nearest Neighbor Algorithm for Large Scale Hierarchical Text Classification

  title={An Optimized K-Nearest Neighbor Algorithm for Large Scale Hierarchical Text Classification},
  author={Xiaogang Han and Junfa Liu and Zhiqi Shen and Chunyan Miao},
In this paper, an optimized k nearest neighbor algorithm for the 2nd edition of the Large Scale Hierarchical Text Classification Pascal Challenge was summarized. Firstly, we perform k-NN algorithm on the datasets to obtain the top-k nearest neighbors for each testing documents. Secondly, several critical category-neighbors features were identified and the impact of each of those features were estimated through cross-validation. Finally, the categories prediction algorithm utilizes the optimal… CONTINUE READING


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