The word "search engine" may not be strange to you. Generally speaking, a search engine searches the web pages available in the Internet, extracts and organizes the information and responds to users' queries with the most relevant pages. World…

题意:不难理解,照搬题意的解法. 代码:(Accepted,0.190s) //UVa1597 - Searching the Web //#define _XIENAOBAN_ #include<iostream> #include<sstream> #include<cstring> #include<string> #include<vector> #include<map> #include<set> using…

Searching the Web   (Arvind Arasu etc.) 1. 概述 2000年,23%网页每天更新,.com域内网页40%每天更新.网页生存半衰期是10天.描述方法可用Poisson过程. 28%的网页构成强连通核心,22%处于核心的上游,22%处于核心的下游,其他的部分无法互联. 2. 抓取 优先抓高质量网页.综合三者:按需要(和query匹配度),按热度(链入度),按区域(比如.com优先) 做法:先抓K个网页,后续使用队列缓存待抓取url和质量分. 在stanfor…

The word "search engine" may not be strange to you. Generally speaking, a search engine searches the web pages available in the Internet, extracts and organizes the information and responds to users' queries with the most relevant pages. World f…

题意简述:做一个极其简单的搜索系统,对以下四种输入进行分析与搜索: 1. 只有一个单词:如 term, 只需找到含有这个单词的document,然后把这个document的含有这个单词term的那些行输出. 2.term1 AND term2, 找到同时含有term1 和 term2 的document,然后把这个document的含有这个单词term1 或 term2 的那些行输出. 3.term1 OR term2, 找到含有term1 或 term2 的document,然后把这个docu…

[链接] 我是链接,点我呀:) [题意] 在这里输入题意 [题解] 用map < string,vector < int > >mmap[100];来记录每一个数据段某个字符串出现的行数,以及用来判断这个字符串在这一段中存不存在. ->这里有一个地方要注意,千万不要在未确定这个字符串是否存在之前,调用mmap[i][s],因为这样,不管s存不存在,s都会加那么一个键值. ->而这就使得我们不能用更快的mmap[i].find(s)函数来寻找某个字符串在不在了. ->…

https://stackoverflow.com/questions/14534167/multiple-actions-were-found-that-match-the-request-in-web-api Answer1 Your route map is probably something like this: routes.MapHttpRoute( name: "API Default", routeTemplate: "api/{controller}/{i…

该课题来源于UVA中Searching the Web的题目:https://vjudge.net/problem/UVA-1597 按照题目的说法,我对按照特定格式输入的文章中的词语合成字典,以满足后期的快速查找. 针对于字典的合成途径,我利用了STL中的map与set的嵌套形成了一种特定的数据结构来解析文章中的单词 #include<map> #include<iostream> #include<set> #include<algorithm> #in…

A list of open source C++ libraries < cpp‎ | links http://en.cppreference.com/w/cpp/links/libs The objective of this page is to build a comprehensive list of open source C++ libraries, so that when one needs an implementation of particular functional…

Pretend that you're working on an open source project for searching the web by crawling websites and indexing them. You have an implementation that works on a small cluster of machines but requires a lot of manual steps. Pretend too that you're worki…