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词袋模型(BOW,bag of words)和词向量模型(Word Embedding)概念介绍
例句: Jane wants to go to Shenzhen. Bob wants to go to Shanghai. 一、词袋模型 将所有词语装进一个袋子里,不考虑其词法和语序的问题,即每个词语都是独立的。例如上面2个例句,就可以构成一个词袋,袋子里包括Jane、wants、to、go、Sh ...
分类:其他好文   时间:2019-06-05 12:41:03    阅读次数:371
leetcode 273 Integer to English Words
lc273 Integer to English Words 分析英文的计数规则,1000一个循环,thousand,million,billion,trillion,所以我们可以每1000处理一次,后面加上相应的thousand或是million… 然后再看1000以内规则: hundred一档, ...
分类:其他好文   时间:2019-06-05 09:25:52    阅读次数:70
【LeetCode每天一题】Word Break()
Given a non-empty string s and a dictionary wordDict containing a list of non-empty words, determine if s can be segmented into a space-separated sequ ...
分类:其他好文   时间:2019-05-30 17:28:19    阅读次数:103
72. Edit Distance
72. Edit Distance 0. 参考文献 | 序号 | 文献 | | | | | 1 | "LeetCode 72. Edit Distance 最短字符串编辑距离 动态规划" | 1.题目 Given two words word1 and word2 , find the minimu ...
分类:其他好文   时间:2019-05-26 17:48:50    阅读次数:96
[LeetCode] 126. Word Ladder II_Hard tag: BFS&DFS
Given two words (beginWord and endWord), and a dictionary's word list, find all shortest transformation sequence(s) from beginWord to endWord, such th ...
分类:其他好文   时间:2019-05-26 09:45:18    阅读次数:99
[LeetCode] 890. Find and Replace Pattern 查找和替换模式
You have a list of and a , and you want to know which words in matches the pattern. A word matches the pattern if there exists a permutation of letter ...
分类:其他好文   时间:2019-05-24 22:28:27    阅读次数:120
72. Edit Distance (JAVA)
Given two words word1 and word2, find the minimum number of operations required to convert word1 to word2. You have the following 3 operations permitt ...
分类:编程语言   时间:2019-05-23 18:21:34    阅读次数:95
127. Word Ladder(js)
127. Word Ladder Given two words (beginWord and endWord), and a dictionary's word list, find the length of shortest transformation sequence from begin ...
分类:Web程序   时间:2019-05-23 00:13:45    阅读次数:147
126. Word Ladder II(js)
126. Word Ladder II Given two words (beginWord and endWord), and a dictionary's word list, find all shortest transformation sequence(s) from beginWord ...
分类:Web程序   时间:2019-05-22 23:52:20    阅读次数:315
151. Reverse Words in a String
Given an input string, reverse the string word by word. My idea:删除左右两边空格,转换成数组,再把中间空格给改了,再专成字符串,用快慢指针找到单词放进去,很麻烦,所以效果不好。 执行用时 : 92 ms, 在Reverse Words ...
分类:其他好文   时间:2019-05-11 17:46:11    阅读次数:91
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