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搜索关键字:negative sampling    ( 2958个结果
Decision_function:scores,predict以及其他
机器学习的评估 PR曲线用于positive类数据占比比较小,或者你更加在意false postion(相比于false negative);其他情况采用ROC曲线;比如Demo中手写体5的判断,因为只有少量5,所以从ROC上面来看分类效果不错,但是从PR曲线可以看到分类器效果不佳。 y_score... ...
分类:其他好文   时间:2018-07-17 23:24:07    阅读次数:502
To the Max
题目描述 Given a two-dimensional array of positive and negative integers, a sub-rectangle is any contiguous sub-array of size 1*1 or greater located withi ...
分类:其他好文   时间:2018-07-16 17:16:46    阅读次数:177
275. H-Index II
问题描述: Given an array of citations sorted in ascending order (each citation is a non-negative integer) of a researcher, write a function to compute the ...
分类:其他好文   时间:2018-07-16 11:25:23    阅读次数:185
410. Split Array Largest Sum
问题描述: Given an array which consists of non-negative integers and an integer m, you can split the array into m non-empty continuous subarrays. Write an ...
分类:其他好文   时间:2018-07-16 11:24:47    阅读次数:115
LeetCode 118 Pascal's Triangle
Given a non-negative integer numRows, generate the first numRows of Pascal's triangle. In Pascal's triangle, each number is the sum of the two numbers ...
分类:其他好文   时间:2018-07-16 11:15:58    阅读次数:126
LeetCode 119 Pascal's Triangle II
Given a non-negative index k where k ≤ 33, return the kth index row of the Pascal's triangle. Note that the row index starts from 0. In Pascal's trian ...
分类:其他好文   时间:2018-07-16 11:15:19    阅读次数:147
poj1050 dp动态规划
Description Given a two-dimensional array of positive and negative integers, a sub-rectangle is any contiguous sub-array of size 1*1 or greater locate ...
分类:其他好文   时间:2018-07-15 19:35:55    阅读次数:212
Container With Most Water--排序后递减长度
Given n non-negative integers a1, a2, ..., an, where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two endpo ...
分类:编程语言   时间:2018-07-14 13:06:19    阅读次数:105
leetcode—js—Add Two Numbers
You are given two non-empty linked lists representing two non-negative integers. The digits are stored in reverse order and each of their nodes contai ...
分类:Web程序   时间:2018-07-13 22:49:48    阅读次数:287
LeeCode from 0 —— 69. Sqrt(x)
69. Sqrt(x) Implement int sqrt(int x). Compute and return the square root of x, where x is guaranteed to be a non-negative integer. Since the return t ...
分类:其他好文   时间:2018-07-12 22:39:48    阅读次数:152
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