1. 四个概念定义：TP、FP、TN、FN 先看四个概念定义： - TP，True Positive - FP，False Positive - TN，True Negative - FN，False Negative 如何理解记忆这四个概念定义呢？ 举个简单的二元分类问题 例子： 假设，我们要对某 ...
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其他好文 时间：
2017-06-24 00:23:14
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266
Given n non-negative integers representing the histogram's bar height where the width of each bar is 1, find the area of largest rectangle in the hist ...
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其他好文 时间：
2017-06-23 23:48:06
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223
题意： Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it is able to trap after rain ...
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移动开发 时间：
2017-06-23 22:05:23
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215
Given a non-negative integer n, count all numbers with unique digits, x, where 0 ≤ x < 10n. Example:Given n = 2, return 91. (The answer should be the ...
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其他好文 时间：
2017-06-23 15:32:04
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116
The gray code is a binary numeral system where two successive values differ in only one bit. Given a non-negative integer n representing the total num ...
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其他好文 时间：
2017-06-23 15:28:03
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146
题目： Given n x m non-negative integers representing an elevation map 2d where the area of each cell is 1 x 1, compute how much water it is able to trap ...
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移动开发 时间：
2017-06-22 21:47:12
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276
题目： Given a list of non negative integers, arrange them such that they form the largest number. For example, given [3, 30, 34, 5, 9], the largest form ...
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其他好文 时间：
2017-06-21 21:15:58
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197
Given an array of scores that are non-negative integers. Player 1 picks one of the numbers from either end of the array followed by the player 2 and t ...
You are given a list of non-negative integers, a1, a2, ..., an, and a target, S. Now you have 2 symbols + and -. For each integer, you should choose o ...
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其他好文 时间：
2017-06-20 22:21:07
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269
Given an array consists of non-negative integers, your task is to count the number of triplets chosen from the array that can make triangles if we tak ...
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其他好文 时间：
2017-06-20 14:57:01
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136
