期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
基于服装图像视觉特征的冷启动问题缓解 被引量:1
1
作者 贺宇 史有群 +1 位作者 陶然 罗辛 《南京师范大学学报(工程技术版)》 CAS 2019年第3期15-20,共6页
冷启动问题是协同过滤推荐算法中被广泛关注的问题,它的存在严重影响协同过滤算法的推荐质量.提出深度卷积神经网络提取的服装商品图像视觉特征用于计算用户对新商品喜好度的方法来缓解冷启动问题,并利用矩阵分解模型估算用户对服装商... 冷启动问题是协同过滤推荐算法中被广泛关注的问题,它的存在严重影响协同过滤算法的推荐质量.提出深度卷积神经网络提取的服装商品图像视觉特征用于计算用户对新商品喜好度的方法来缓解冷启动问题,并利用矩阵分解模型估算用户对服装商品的评分.通过从服装商品图像视觉特征到商品特征向量的映射函数计算新商品的特征向量,给出了两种映射函数形式:K最近邻映射和线性映射.实验结果表明,服装图像视觉特征能够有效缓解协同过滤算法冷启动问题. 展开更多
关键词 协同过滤 矩阵分解 冷启动 图像视觉特征
在线阅读 下载PDF
NEW CORNER DETECTION ALGORITHM BASED ON MULTI-FEATURE SYNTHESIS 被引量:3
2
作者 邱卫国 昂海松 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI 2004年第3期174-178,共5页
Corner detection is a chief step in computer vision. A new corner detection algorithm in planar curves is proposed. Firstly, from the human perception, two key characteristics are given as an amendment of the traditio... Corner detection is a chief step in computer vision. A new corner detection algorithm in planar curves is proposed. Firstly, from the human perception, two key characteristics are given as an amendment of the traditional corner properties. Based on the two properties, the concept of the fuzzy set is introduced into a detection. Secondly, the extracted-formulae of three groups including the features of the corner subject degree are derived. Through synthesizing the features of three groups, the judgments of the corner detection, location, and optimization are obtained. Finally, by using the algorithm the detection results of several examples and feature curves for some interested parts, as well as the detection results for the test images history in references are given. Results show that the algorithm is easily realized after adopting the fuzzy set, and the detection effect is very ideal. 展开更多
关键词 image feature corner detection fuzzy infe-rence subject degree
在线阅读 下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部