一. 概述 强化学习算法可以分为三大类:value based, policy based 和 actor critic. 常见的是以DQN为代表的value based算法,这种算法中只有一个值函数网络,没有policy网络,以及以DDPG,TRPO为代表的actor-critic算法,这种算法中既有值函数网络,又有policy网络. 说到DQN中有值函数网络,这里简单介绍一下强化学习中的一个概念,叫值函数近似.一个state action pair (s,a)对应一个值函数Q(s,a).理论

 > 目  录 <  k-armed bandit problem Incremental Implementation Tracking a Nonstationary Problem Initial Values (*) Upper-Confidence-Bound Action Selection(UCB) (*) Gradient Bandit Algorithms (*) Associative Search (Contextual Bandits)  > 笔  记 < 

Strings Immutable Strings Objects of the String class are immutable. Every method in the class that appears to modify a String actually creates and returns a brand new String object containing the modification. To the reader of the code, an argument

http://www.personal.kent.edu/~rmuhamma/Algorithms/MyAlgorithms/Greedy/greedyIntro.htm Greedy Introduction Greedy algorithms are simple and straightforward. They are shortsighted in their approach in the sense that they take decisions on the basis of

Introducing Regular Expressions 读书笔记 工具: regexbuddy:http://download.csdn.net/tag/regexbuddy%E7%A0%B4%E8%A7%A3 在线测试平台: http://www.regexpal.com/ http://gskinner.com/RegExr/ 进阶读物: Mastering Regular Expressions Regular Expressions Cookbook 资料: Notepad++

Sequence to Sequence models basic sequence-to-sequence model: basic image-to-sequence or called image captioning model: but there are some differences between how you write a model like this to generate a sequence, compared to how you were synthesizi

Here’s just a fraction of what you can do with linear algebra The next time someone wonders what the point of linear algebra is, send them here. I write a blog on math and programming and I see linear algebra applied to computer science all the time.

代码(操纵全局变量) xiaojie=1 i=tf.constant(0,dtype=tf.int32) batch_len=tf.constant(10,dtype=tf.int32) loop_cond = lambda a,b: tf.less(a,batch_len) #yy=tf.Print(batch_len,[batch_len],"batch_len:") yy=tf.constant(0) loop_vars=[i,yy] def _recurrence(i,yy):

Kuma Rider久违的第二场训练,这场很水,又在vj的榜单上看到第一场的大哥了,2小时ak,大哥牛啤! A.水 #include<cstdio> #include<iostream> #include<algorithm> #include<queue> #include<cstring> #include<string> #include<vector> #include<cmath> #include&

G. Training Camp[ Color: Yellow ]Montaser is planning to train very hard for ACM JCPC 2015; he has prepared a list with n topicsto study in the next n days, one topic every day.Montaser knows that some topics depend on other topics, so he asked coach

G. Training Camp Time Limit: 1000ms Memory Limit: 262144KB This problem will be judged on CodeForcesGym. Original ID: 100676G64-bit integer IO format: %I64d      Java class name: (Any)   Montaser is planning to train very hard for ACM JCPC 2015; he h

http://acm.hdu.edu.cn/showproblem.php?pid=4976 2014 Multi-University Training Contest 10 1006 A simple greedy problem. Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 20    Accepted Submission(s

Greedy Gift Givers A group of NP (2 ≤ NP ≤ 10) uniquely named friends has decided to exchange gifts of money. Each of these friends might or might not give some money to any or all of the other friends. Likewise, each friend might or might not receiv

Greedy Mouse 时间限制:1000 ms  |  内存限制:65535 KB 难度:3   描述 A fat mouse prepared M pounds of cat food,ready to trade with the cats guarding the warehouse containing his favorite food:peanut. The warehouse has N rooms.The ith room containsW[i] pounds of pea

huffman coding, greedy algorithm. std::priority_queue, std::partition, when i use the three commented lines, excution time increase to 15ms from 0ms, due to worse locality? thanks to http://acm.hdu.edu.cn/discuss/problem/post/reply.php?action=support

在现实世界中,有这样一类问题:它有n个输入,而它的解就由这n个输入的某个子集组成,不过这个子集必须满足某些事先给定的条件.把那些必须满足的条件称为约束条件:而把满足约束条件的子集称为该问题的可行解.问题的简单描述:In={n个输入}: 显然,满足约束条件的子Ina是In的子集: 集可能不止一个,一般来说Ina满足约定的条件: 可行解不是唯一的.Ina构成问题的解. 贪心方法是一种改进了的分级处理方法,选择能产生问题最优解的最优量度标准是使用贪心法设计求解的核心问题.但是,要选出最优量度标准并不是

作者:supernova 出处:http://community.topcoder.com/tc?module=Static&d1=tutorials&d2=greedyAlg John Smith is in trouble! He is a TopCoder member and once he learned to master the "Force" of dynamic programming, he began solving problem after p

题目地址:http://ac.jobdu.com/problem.php?pid=1453 题目描述: Tino wrote a long long story. BUT! in Chinese... So I have to tell you the problem directly and discard his long long story. That is tino want to carry some oranges with "Carrying pole", and he

 Greedy Gift Givers  The Problem This problem involves determining, for a group of gift-giving friends, how much more each person gives than they receive (and vice versa for those that view gift-giving with cynicism). In this problem each person sets

两次SPFA 第一关找:从1没有出发点到另一个点的多少是留给油箱 把边反过来再找一遍:重每一个点到终点最少须要多少油 Greedy Driver Time Limit: 2 Seconds      Memory Limit: 65536 KB Edward is a truck driver of a big company. His daily work is driving a truck from one city to another. Recently he got a long d