How to build Inverted Index? 1. Token sequence. 2. Sort by terms. 3. Dictionary & Postings code [Qword1 and Qword2] 等高线式前进. O(x+y) [Qword1 and not Qword2] O(m*log2n) = m个中的any one都要查看n个中是否也有(二分查找). [Qword1 or not Qword2] O(m+n) [Qword1 and Qword2 and…
第一讲 布尔检索Boolean Retrieval 主要内容: 信息检索概述 倒排记录表 布尔查询处理 一.信息检索概述 什么是信息检索? Information Retrieval (IR) is finding material (usually documents) of an unstructured nature (usually text) that satisfies an information need from within large collections (usuall…
教材:<信息检索导论> 倒排索引 How to build Inverted Index? 1. Token sequence. 2. Sort by terms. 3. Dictionary & Postings 查询同时包含两单词的文档 [Qword1 and Qword2] 等高线式前进. O(x+y) [Qword1 and not Qword2] O(m*log2n) = m个中的any one都要查看n个中是否也有(二分查找). [Qword1 or not Qword2]…
Relevant Readable Links Name Interesting topic Comment Edwin Chen 非参贝叶斯 徐亦达老板 Dirichlet Process 学习目标:Dirichlet Process, HDP, HDP-HMM, IBP, CRM Alex Kendall Geometry and Uncertainty in Deep Learning for Computer Vision 语义分割 colah's blog Feature Visu…
阶段性总结 Boolean retrieval 单词搜索 [Qword1 and Qword2] O(x+y) [Qword1 and Qword2]- 改进: Galloping Search O(2a*log2(b/a)) [Qword1 and not Qword2] O(m*log2n) [Qword1 or not Qword2] O(m+n) [Qword1 and Qword2 and Qword3 and ...…
一位cornell的教授做的计算机类期刊会议依据Microsoft Research引用数的排名 link:http://www.cs.cornell.edu/andru/csconf.html The following are the journals and conferences in computer science that have published at least 100 papers (2003–2013), with at least 5 citations per pa…