首页>
外国专利>
METHOD FOR ENCODING BASED ON MIXTURE OF VECTOR QUANTIZATION AND NEAREST NEIGHBOR SEARCH USING THEREOF
METHOD FOR ENCODING BASED ON MIXTURE OF VECTOR QUANTIZATION AND NEAREST NEIGHBOR SEARCH USING THEREOF
展开▼
机译:基于矢量量化和近邻搜索的混合编码方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
The present invention relates to a method for encoding a candidate vector for searching for a neighbor that is nearest to a query in a candidate dataset, the method comprising a normalization step of normalizing an input vector to obtain a direction vector and vector energy; a quantization step of quantizing the direction vector to obtain a code word and a residual vector; a step of repeating the normalization step and the quantization step, as many times as a predetermined number of encoding times, by using the residual vector as an input vector; and a step of encoding the candidate vector by using one or more code words and energy of one or more vectors resulting from the repetition. According to the present invention, a dataset having a very wide range of energy values can be effectively approximated and higher precision thereof can be obtained.
展开▼