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tf.gather和gather_nd从params中收集数值，tf.scatter_nd 和 tf.scatter_nd_update用updates更新某一张量。严格上说，tf.gather_nd和tf.scatter_nd_update互为逆操作。 1. 已知数值的位置，从张量中提取数值：tf 阅读全文
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https://arimo.com/data-science/2016/bayesian-optimization-hyperparameter-tuning/ 贝叶斯优化：使用高斯过程作为代理函数，并且通常优化提升幅度的期望Expected Improvement(新试验相对当前最好观测的提升的期 阅读全文
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Windows上TensorFlow的安装和环境搭建： 1.安装Python 3.5.2 2.通过Pip3安装TensorFlow CPU版 https://www.tensorflow.org/install/install_windows 3.VisualStudio2015 Python Pr 阅读全文
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C/C++宏体中出现的#，#@，##： - #的功能是将其后面的宏参数进行字符串化操作（stringfication），就是对它所引用的宏变量通过替换后在其左右各加上一个双引号 -##被称为连接符（concatenator），用来将两个token连接为一个token。注意这里连接的对象是token就 阅读全文
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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... 阅读全文
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There are N children standing in a line. Each child is assigned a rating value.You are giving candies to these children subjected to the following req... 阅读全文
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Given a singly linked list where elements are sorted in ascending order, convert it to a height balanced BST.这题和sort list等题都比较相似，需要先用快慢指针的方法找到链表的中点，然后... 阅读全文
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Say you have an array for which the ith element is the price of a given stock on day i.Design an algorithm to find the maximum profit. You may complet... 阅读全文
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Given an array S of n integers, find three integers in S such that the sum is closest to a given number, target. Return the sum of the three integers.... 阅读全文
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Given n, generate all structurally unique BST's (binary search trees) that store values 1...n.For example,Given n = 3, your program should return all ... 阅读全文