zhangmengjlu-优快云博客

原创 wordnet学习记录

人们经常区分词语知识和世界知识。前者体现在词典中，后者体现在百科全书中。事实上二者的界限是模糊的。比如hit（“打”）某人是一种带有敌意的行为，这是百科知识；而hit跟strike（“击”）多多少少同义，并且hit可以带一个直接宾语论元，这是词语知识。但hit的直接宾语应该是固体（而不是像gas这样的气体），这是词语知识还是百科知识就界限模糊了。不过毫无疑问，要理解语言，这两部分知识是缺一不可的。

2014-01-12 03:36:31 703

原创 learning to rank资料汇总

如何理解 Learning to rankhttp://hi.baidu.com/nuumkxjinrbacgd/item/9b8ea4f44126e9723d198b1eLearning to Rank小结http://blog.crackcell.com/posts/2011/12/17/a_short_intro_2_ltr.html漫

2013-12-07 22:46:25 606

转载【转载】IT屌丝如何成为数据科学家？

http://www.ctocio.com/ccnews/13588.html数据科学家被《财富》杂志誉为21世纪最性感的职业，但遗憾的是大多数企业里都没有真正的数据科学家人才。根据麦肯锡报告，仅仅在美国市场，2018年大数据人才和高级分析专家的人才缺口将高达19万。此外美国企业还需要150万位能够提出正确问题、运用大数据分析结果的大数据相关管理人才。那么，对于不同职业经历和专

2013-11-26 18:29:34 684

转载【转载】人最重要的几个素质/能力

http://www.newsmth.net/nForum/#!article/WorkLife/524639?p=11.开放的思维（固执的人永远都认为自己是对的，也就没有了进步的空间） 2.能分清楚轻重缓急（把精力投入到重要的事情上，做正确的事情远远大于把事情做正确） 3.规划能力（如何做正确的事情并一步步成功） 4.强大的执行能力（把正确的事情坚持做下去） 5.表达能

2013-11-19 22:17:53 739

原创 MySQL使用汇总

MySQL添加索引命令1.PRIMARY KEY（主键索引）mysql>ALTER TABLE `table_name` ADD PRIMARY KEY ( `column` ) 2.UNIQUE(唯一索引) mysql>ALTER TABLE `table_name` ADD UNIQUE (`column` ) 3.INDEX(

2013-11-16 01:53:49 536

原创【leetcode】Valid Number

class Solution {public: bool isNumber(const char *s) { // Note: The Solution object is instantiated only once and is reused by each test case. //有限自动机，和处理图书章节前的“第1.1章”的方法类似

2013-10-29 23:20:42 589

转载【转载】计算广告学-搜索广告与广告网络Demand技术-流式计算平台

搜索广告与广告网络Demand技术原作者：刘鹏 @北冥乘海生编辑：Koala++/屈伟视频课程：师徒网流式计算平台-Storm 我们以Storm为例来看流式计算的功能是什么。下面内容引用自大圆的博客。在Storm中，一个实时应用的计算任务被打包作为Topology发布，这同Hadoop的MapReduce任务相似。但是有一点不同的

2013-10-24 23:49:53 594

转载【转载】搜索广告与广告网络Demand技术

搜索广告与广告网络Demand技术原作者：刘鹏 @北冥乘海生编辑：Koala++/屈伟视频课程：师徒网流式计算平台-Storm 我们以Storm为例来看流式计算的功能是什么。下面内容引用自大圆的博客。在Storm中，一个实时应用的计算任务被打包作为Topology发布，这同Hadoop的MapReduce任务相似。但是有一点不同的

2013-10-22 02:31:43 582

原创【leetcode】Search a 2D Matrix

class Solution {public: bool searchMatrix(vector > &matrix, int target) { // Note: The Solution object is instantiated only once and is reused by each test case. int m=matrix.size

2013-10-13 01:39:07 390

原创【leetcode】Pow(x, n)

class Solution {public: double powPositive(double x,int n) { if(n==0)return 1; if(n==1)return x; double tmp; if(n%2==0) { tmp=pow

2013-10-11 22:16:07 490

转载【转载】知识库构建前沿：自动和半自动知识提取

编者按：在过去几十年，人们曾尝试采用直接编辑知识、利用大众智慧、自动或半自动知识抽取三类方法来构建知识库。随着时代发展，直接编辑知识由于受时间和经济成本的约束，这种方式很难实现大规模知识库的构建。而利用大众智慧是指利用互联网众包机制，过于依赖激励机制将降低知识库运行稳定性。微软亚洲研究院主管研究员史树明在本文中重点讨论第三类方法——自动或半自动知识抽取，其基本思想是设计自动或半自动的算法，从现有的

2013-10-11 21:34:30 1921

转载【转载】从图谱搜索看搜索技术的发展趋势

编者按：图谱搜索（Graph Search）是基于社交图谱构建起来的搜索服务，与基于关键词匹配的传统网络搜索引擎相比，图谱搜索能够支持更自然、复杂的查询输入，并针对查询直接给出答案。在微软亚洲研究院副研究员段楠眼中，这样的高效个性化搜索会越来越多。文章中，他从基础架构、自然语言接口、相关研究、发展趋势等几个方面，对计算搜索的现在和未来进行了总结和展望。作者微软亚洲研究院段楠

2013-10-11 21:33:05 903

原创【leetcode】Permutations II

class Solution {public: vector > permuteUnique(vector &num) { // Note: The Solution object is instantiated only once and is reused by each test case. vector >ans; sort(num

2013-10-11 01:55:16 455

原创【leetcode】Single Number II

class Solution {public: int singleNumber(int A[], int n) { // Note: The Solution object is instantiated only once and is reused by each test case. int x[32];//记录A[]中的每一位 m

2013-10-11 01:23:55 740

原创【leetcode】Single Number

class Solution {public: int singleNumber(int A[], int n) { // Note: The Solution object is instantiated only once and is reused by each test case. int ans=0; for(int i=0;i

2013-10-10 23:33:24 422

原创【leetcode】Permutations

class Solution {public: vector > permute(vector &num) { // Note: The Solution object is instantiated only once and is reused by each test case. vector >ans; sort(num.begin

2013-10-10 15:57:03 387

原创【leetcode】Next Permutation

class Solution {public: void nextPermutation(vector &num) { // Note: The Solution object is instantiated only once and is reused by each test case. for(int i=num.size()-2;i>=0;i--

2013-10-10 15:39:46 401

原创【leetcode】Subsets

class Solution {public: vector > subsets(vector &S) { // Note: The Solution object is instantiated only once and is reused by each test case. int N=S.size(); sort

2013-10-09 00:46:37 522

原创【leetcode】Combinations

class Solution {public: vector >ans; vectortmp; void dfs(int dep,int maxDep,int start,int end) { if(dep==maxDep) { ans.push_back(tmp); re

2013-10-09 00:28:18 453

原创【leetcode】Sqrt(x)

class Solution {public: int sqrt(int x) { // Note: The Solution object is instantiated only once and is reused by each test case. int sta=0,end=x; while(sta<=end)//等号不能丢

2013-10-08 23:49:31 431

原创【leetcode】Palindrome Number

class Solution {public: bool isPalindrome(int x) { // Note: The Solution object is instantiated only once and is reused by each test case. if(x<0) return false;

2013-10-08 23:29:47 402

原创【leetcode】Plus One

class Solution {public: vector plusOne(vector &digits) { // Note: The Solution object is instantiated only once and is reused by each test case. reverse(digits.begin(),digits.end(

2013-10-08 21:48:24 389

原创【leetcode】Reverse Integer

class Solution {public: int reverse(int x) { // Note: The Solution object is instantiated only once and is reused by each test case. if(x==0) return 0;//x==0 int

2013-10-08 20:53:26 421

原创【leetcode】Add Binary

class Solution {public: string addBinary(string a, string b) { // Note: The Solution object is instantiated only once and is reused by each test case. reverse(a.begin(),a.end());

2013-10-08 20:24:38 420

原创【leetcode】Search in Rotated Sorted Array II

class Solution {public: bool search(int A[], int n, int target) { // Note: The Solution object is instantiated only once and is reused by each test case. int sta=0,end=n-1;

2013-10-08 13:32:14 404

原创【leetcode】Search in Rotated Sorted Array

class Solution {public: int search(int A[], int n, int target) { // Note: The Solution object is instantiated only once and is reused by each test case. int sta=0,end=n-1;

2013-10-08 02:52:01 364

原创【leetcode】3Sum Closest

class Solution {public: int threeSumClosest(vector &num, int target) { // Note: The Solution object is instantiated only once and is reused by each test case. int ans; boo

2013-10-08 02:13:10 505

原创【leetcode】3Sum

class Solution {public: vector > threeSum(vector &num) { // Note: The Solution object is instantiated only once and is reused by each test case. vector >ans; if(n

2013-10-08 01:39:53 423

原创【leetcode】Roman to Integer

class Solution {public: int romanToInt(string s) { // Note: The Solution object is instantiated only once and is reused by each test case. int n=s.size(); if(n==0)

2013-10-08 00:48:31 408

原创【leetcode】Valid Palindrome

class Solution {public: bool check1(char ch)//当ch在'a'-'z'之间时，返回true { if(ch>='a'&&ch<='z') return true; return false; } bool check2(char ch)//当ch

2013-10-07 22:36:42 459

原创【leetcode】Set Matrix Zeroes

class Solution {public: void setZeroes(vector > &matrix) { // Note: The Solution object is instantiated only once and is reused by each test case. int rowLen=matrix.size()

2013-10-07 21:57:48 421

原创【leetcode】Implement strStr()

class Solution {public: void getPre(char *needle,vector &pre,int neeLen)//对目标串，产生一个部分匹配的数组 { int k; pre[0]=-1; for(int i=1;i<neeLen;i++) { k=pre[i

2013-10-07 19:40:49 532

原创【leetcode】Binary Tree Level Order Traversal II

/** * Definition for binary tree * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode(int x) : val(x), left(NULL), right(NULL) {} * }; */class Soluti

2013-10-07 15:11:37 392

原创【leetcode】Binary Tree Level Order Traversal

/** * Definition for binary tree * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode(int x) : val(x), left(NULL), right(NULL) {} * }; */class Soluti

2013-10-07 13:47:53 464

原创【leetcode】Binary Tree Inorder Traversal

/** * Definition for binary tree * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode(int x) : val(x), left(NULL), right(NULL) {} * }; */class Soluti

2013-10-06 20:59:22 448

原创【leetcode】Merge Sorted Array

class Solution {public: void merge(int A[], int m, int B[], int n) { // Note: The Solution object is instantiated only once and is reused by each test case. vector tmp(m+n,0);//O(

2013-10-06 20:39:00 379

原创【leetcode】Remove Duplicates from Sorted Array II

class Solution {public: int removeDuplicates(int A[], int n) { // Start typing your C/C++ solution below // DO NOT write int main() function if(n==0||n==1||n==2)//n<=2的情况

2013-10-06 19:59:08 472

原创【leetcode】Remove Duplicates from Sorted Array

class Solution {public: int removeDuplicates(int A[], int n) { // Note: The Solution object is instantiated only once and is reused by each test case. int groupNum=0;

2013-10-06 01:54:54 538

原创【leetcode】Remove Element

class Solution {public: int removeElement(int A[], int n, int elem) { // Note: The Solution object is instantiated only once and is reused by each test case. int count=0;

2013-10-06 01:39:12 461

原创【leetcode】Construct Binary Tree from Inorder and Postorder Traversal

/** * Definition for binary tree * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode(int x) : val(x), left(NULL), right(NULL) {} * }; */class Soluti

2013-10-06 00:20:58 777

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