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- W2110375079 abstract "Given a set of training data, nearest neighbor classification predicts the class value for an unknown tuple X by searching the training set for the k nearest neighbors to X and then classifying X according to the most frequent class among the k neighbors. Each of the k nearest neighbors casts an equal vote for the class of X. In this paper, we propose a new algorithm, Podium Incremental Neighbor Evaluator (PINE), in which nearest neighbors are weighted for voting. A metric called HOBBit is used as the distance metric, and a data structure, the P-tree, is used for efficient implementation of the PINE algorithm on spatial data. Our experiments show that by using a Gaussian podium function, PINE outperforms the k-nearest neighbor (KNN) method in terms of classification accuracy for spatial data. In addition, in the PINE algorithm, all the instances are potential neighbors so that the value of k need not be pre-specified as in KNN methods. By assigning high weights to the nearest neighbors and low (even zero) weights to other neighbors, high classification accuracy can be achieved." @default.
- W2110375079 created "2016-06-24" @default.
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- W2110375079 date "2003-03-09" @default.
- W2110375079 modified "2023-09-27" @default.
- W2110375079 title "PINE" @default.
- W2110375079 cites W2001628108 @default.
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- W2110375079 doi "https://doi.org/10.1145/952532.952633" @default.
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