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从分类,排序,top-k多个方面对推荐算法稳定性的评价
介绍 论文名: “classification, ranking, and top-k stability of recommendation algorithms”. 本文讲述比較推荐系统在三种情况下, 推荐稳定性情况. 与常规准确率比較的方式不同, 本文从还有一个角度, 即推荐算法稳定性方面进行 ...
分类:编程语言   时间:2017-07-29 14:09:55    阅读次数:226
Covering Algorithms:Constructing Rules
覆盖算法:构建规则集合 树和规则的区别 树:是通过自上而下的分治算法来实现的。在一个多重类案例中,决策树在分裂的时候,为了获得最大的分裂纯度,要考虑所有的类。 规则:是由覆盖算法实现, 规则生成的方法,每次只考虑一个类,忽视其他类的事件。一般树形都比相同的规则集合要大的多。(因为树形每次都是分裂一个 ...
分类:其他好文   时间:2017-07-28 12:44:50    阅读次数:115
【转载】比较排序算法
【转载自】http://www.cnblogs.com/gaochundong/p/comparison_sorting_algorithms.html 比较排序算法分类 比较排序(Comparison Sort)通过对数组中的元素进行比较来实现排序。 比较排序算法(Comparison Sorts ...
分类:编程语言   时间:2017-07-26 14:42:28    阅读次数:254
Coursera Algorithms week3 快速排序 练习测验: Nuts and bolts
题目原文: Nuts and bolts. A disorganized carpenter has a mixed pile of n nuts and n bolts. The goal is to find the corresponding pairs of nuts and bolts. ...
分类:编程语言   时间:2017-07-25 21:09:34    阅读次数:224
hdu, KMP algorithm, linear string search algorithm, a nice reference provided
reference: Rabin-Karp and Knuth-Morris-Pratt Algorithms By TheLlama– TopCoder Member https://www.topcoder.com/community/data-science/data-science-tuto ...
分类:其他好文   时间:2017-07-25 14:27:20    阅读次数:138
简单DP
Almost Sorted Array We are all familiar with sorting algorithms: quick sort, merge sort, heap sort, insertion sort, selection sort, bubble sort, etc. ...
分类:其他好文   时间:2017-07-24 20:26:59    阅读次数:267
Coursera Algorithms week2 栈和队列 练习测验: Stack with max
题目原文: Stack with max. Create a data structure that efficiently supports the stack operations (push and pop) and also a return-the-maximum operation. A ...
分类:其他好文   时间:2017-07-24 19:16:47    阅读次数:181
Coursera Algorithms week3 归并排序 练习测验1: Merging with smaller auxiliary array
题目原文: Suppose that the subarray a[0] to a[n-1] is sorted and the subarray a[n] to a[2*n-1] is sorted. How can you merge the two subarrays so that a[0] ...
分类:编程语言   时间:2017-07-22 00:44:32    阅读次数:284
Coursera Algorithms week2 栈和队列 Interview Questions: Queue with two stacks
题目原文: Implement a queue with two stacks so that each queue operations takes a constant amortized number of stack operations. 题目要求用栈实现队列的所有操作。 ...
分类:其他好文   时间:2017-07-22 00:43:51    阅读次数:205
Coursera Algorithms week2 基础排序 Interview Questions: 1 Intersection of two sets
题目原文: Given two arrays a[] and b[], each containing n distinct 2D points in the plane, design a subquadratic algorithm to count the number of points t ...
分类:编程语言   时间:2017-07-22 00:12:01    阅读次数:236
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