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[Elasticsearch] 多字段搜索 (五) - 以字段为中心的查询
以字段为中心的查询(Field-centric Queries) 上述提到的三个问题都来源于most_fields是以字段为中心(Field-centric),而不是以词条为中心(Term-centric):它会查询最多匹配的字段(Most matching fields),而我们真正感兴趣的最匹配的词条(Most matching terms)。 NOTE best_fields同...
分类:其他好文   时间:2014-12-11 10:26:13    阅读次数:312
(每日算法)LeetCode --- Remove Duplicates from Sorted Array II (删除重复元素II)
Remove Duplicates from Sorted Array II Leetcode 题目: Follow up for "Remove Duplicates": What if duplicates are allowed at most twice? For example, Given sorted array A = [1,1,1,2,2,3], Y...
分类:编程语言   时间:2014-12-10 21:18:41    阅读次数:209
[Elasticsearch] 多字段搜索 (三) - multi_match查询和多数字段
multi_match查询 multi_match查询提供了一个简便的方法用来对多个字段执行相同的查询。 NOTE 存在几种类型的multi_match查询,其中的3种正好和在"了解你的数据"一节中提到的几种类型相同:best_fields,most_fields以及cross_fields。 默认情况下,该查询以best_fields类型执行,它会为每个字段生成一...
分类:其他好文   时间:2014-12-10 10:51:19    阅读次数:315
【LeetCode】Plus One (2 solutions)
Plus OneGiven a non-negative number represented as an array of digits, plus one to the number.The digits are stored such that the most significant dig...
分类:其他好文   时间:2014-12-10 00:23:51    阅读次数:153
Most middleware (like favicon) is no longer bundled with Express
Error: Most middleware (like favicon) is no longer bundled with Express and must be installed separately. Please see https://github.com/senchalabs/con...
分类:其他好文   时间:2014-12-09 21:16:24    阅读次数:840
[LeetCode]Best Time to Buy and Sell Stock
Say you have an array for which the ith element is the price of a given stock on day i. If you were only permitted to complete at most one transaction (ie, buy one and sell one share of the stock),...
分类:其他好文   时间:2014-12-09 17:56:20    阅读次数:171
hadoop平台读取文件报错
背景: 生产环境有个脚本执行读取st层表数据时出现IO错误,查看表目录下的文件,都是压缩后的文件。详细信息如下: Task with the most failures(4): ----- Task ID: task_201408301703_172845_m_003505 URL: http://master:50030/taskdetails.jsp?jobid=j...
分类:其他好文   时间:2014-12-08 23:03:43    阅读次数:252
Quadtrees
Description: A quadtree is a representation format used to encode images. The fundamental idea behind the quadtree is that any image can be split into four quadrants. Each quadrant may again ...
分类:其他好文   时间:2014-12-08 21:26:59    阅读次数:222
HDU1698:Just a Hook(线段树区域更新模板题)
http://acm.hdu.edu.cn/showproblem.php?pid=1698Problem DescriptionIn the game of DotA, Pudge’s meat hook is actually the most horrible thing for most o...
分类:其他好文   时间:2014-12-07 21:34:02    阅读次数:269
关于数学的摘抄
Kronecker explains the need for fundamental concepts in a most fascinating way as follows: “Clearly, whena reasonable master builder has to put down a...
分类:其他好文   时间:2014-12-07 13:45:58    阅读次数:246
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