Yi-Chih Hsin

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K-means algorithm has been shown to be an effective and efficient algorithm for clustering. However, the k-means algorithm is developed for numerical data only. It is not suitable for the clustering of non-numerical data. K-modes algorithm has been developed for clustering categorical objects by extending from the k-means algorithm. However, no one applies(More)
An innovative scheme for watermarking based on vector quantization (VQ), which is suitable for transmitting over noisy channels with multiple description coding (MDC), is proposed in this paper. Digital watermarking is one of the applicable tools that can be used to protect digital contents from illegal copying and distribution. In addition to conventional(More)
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