%0 Journal Article
%T Determining Parameter for Locally Linear Embedding Algorithm<br>局部线性嵌入算法中参数的选取
%A WEN Gui-hua
%A BAO Li
%A DING Yue-hua
%A <br>文贵华
%A 包丽
%A 丁月华
%J 计算机应用研究
%D 2007
%I 
%X The Locally Linear Embedding(LLE) algorithm is an effective technique for nonlinear dimensionality reduction of high-dimensional data.It has low time-complexity and strong ability to express manifold.Compared with other dimensionality reduction algorithms,the advantage of the locally linear embedding algorithm is only defining unique parameter: number of nearest neighbors.Performance of algorithm mainly depends on selection of parameter of neighbors.Then one question which is how to select an optimal parameter value of neighbors emerges.After comparing and analysing two methods for automatic selection of an optimal parameter value,which are a straightforward method and a hierarchical method,heuristic strategy for determining parameter of neighbors in practice has been concluded.
%K Linear Embedding
%K Optimal Parameter Value
%K Dimensionality Reduction
%K Reconstruction Error<br>线性嵌入
%K 最佳参数值
%K 降维
%K 重构误差
%K 局部
%K 非线性
%K 嵌入算法
%K 域参数
%K 选取
%K Algorithm
%K Embedding
%K Linear
%K 启发式策略
%K 实践
%K 分析
%K 试验比较
%K 分层方法
%K 数值
%K 自动
%K 最佳
%K 问题
%K 依靠
%K 算法的性能
%K 邻域
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=A9D9BE08CDC44144BE8B5685705D3AED&aid=343459AF1736CA696F478F7692CEC512&yid=A732AF04DDA03BB3&vid=B91E8C6D6FE990DB&iid=0B39A22176CE99FB&sid=BFE7933E5EEA150D&eid=95D537AC89B28832&journal_id=1001-3695&journal_name=计算机应用研究&referenced_num=0&reference_num=9