郑重声明:原文参见标题,如有侵权,请联系作者,将会撤销发布! Abstract 在巴甫洛夫式和工具性条件下,奖励通常是在奖励触发动作几秒钟后产生的,从而产生了一个被称为“远端奖励问题”的解释难题:如果1)奖励到达时不再存在这些模式,并且2)在等待奖励的所有神经元和突触都处于活跃状态,大脑如何知道大脑中哪些神经元负责奖励?在这里,我们展示了如何通过具有由多巴胺(DA)调节的脉冲时间依赖可塑性(STDP)的皮质脉冲神经元模型网络来解决难题.尽管STDP是在毫秒的时间尺度上由几乎重合的发放模式触发的,…

刚读完一篇paper<Solving the “false positives” problem in fraud prediction>,趁热打铁,做个笔记. 文章下载链接:https://arxiv.org/pdf/1710.07709.pdf 概述 这篇文章是对 bank transaction fraud prediction 场景下的机器学习算法做了优化,优化方法是,使用 Deep Feature Synthesis 自动生成大量的特征,优化后 False Positive Rate…

Best Reward Problem's Link:   http://acm.hdu.edu.cn/showproblem.php?pid=3613 Mean: 给你一个字符串,每个字符都有一个权值(可能为负),你需要将这个字符串分成两个子串,使得这两个子串的价值之和最大.一个子串价值的计算方法:如果这个子串是回文串,那么价值就是这个子串所有字符权值之和:否则价值为0. analyse: 扩展KMP算法运用.总体思路:找出所有包含第一个字母的回文串和包含最后一个字母的回文串,然后O(n)扫一…

Reward Problem Description Dandelion's uncle is a boss of a factory. As the spring festival is coming , he wants to distribute rewards to his workers. Now he has a trouble about how to distribute the rewards. The workers will compare their rewards ,a…

Copied From:http://csfieldguide.org.nz/en/curriculum-guides/ncea/level-3/complexity-tractability-TSP.html This is a guide for students attempting Complexity and Tractability in digital technologies achievement standard 3.44. This guide is not officia…

The Brain as a Universal Learning Machine This article presents an emerging architectural hypothesis of the brain as a biological implementation of a Universal Learning Machine.  I present a rough but complete architectural view of how the brain work…

原文: INVERSE KINEMATICS AND GEOMETRIC CONSTRAINTS FOR ARTICULATED FIGURE MANIPULATION http://graphics.ucsd.edu/courses/cse169_w04/welman.pdf 译者: crazii http://www.cnblogs.com/crazii/p/4662199.html [译者: 根据个人需要, 只仔细阅读了部分内容, 所以只翻译 基本概念(3.1)和 CCD相关(4.2, 4…

2015年~2017年SIGIR,SIGKDD,ICML三大会议的Recsys论文: [转载请注明出处:https://www.cnblogs.com/shenxiaolin/p/8321722.html] SIGIR-2015 [Title]WEMAREC: Accurate and Scalable Recommendation through Weighted and Ensemble Matrix Approximation [Abstract]Matrix approximation…

[it-ebooks]电子书列表   [2014]: Learning Objective-C by Developing iPhone Games || Leverage Xcode and Objective-C to develop iPhone games http://it-ebooks.info/book/3544/Learning Web App Development || Build Quickly with Proven JavaScript Techniques http:…

Abstract We describe and analyze a simple and effective iterative algorithm for solving the optimization problem cast by Support Vector Machines (SVM). Our method alternates between stochastic gradient descent steps and projection steps. We prove tha…

My father got me a computer for graduation with 512MB RAM and a Pentium processor. It came with Windows XP, and I used it to do 2D animation with Adobe Flash. Back in those days, I was looking for my dream job as a 3D artist, and I'd often see job li…

This article come from HEREARS-L1: Learning Tuesday 10:30–12:30; Oral Session; Room: Leonard de Vinci 10:30  ARS-L1.1—GROUP STRUCTURED DIRTY DICTIONARY LEARNING FOR CLASSIFICATION Yuanming Suo, Minh Dao, Trac Tran, Johns Hopkins University, USA; Hojj…

转载 - Recurrent Neural Networks Tutorial, Part 2 – Implementing a RNN with Python, Numpy and Theano 本文是RNN教程的第二部分,第一部分教程在这里. 对应的样板代码在 Github上面. 在这部分内容中,我将会使用 numpy 和 theano 从头开始实现RNN 模型. 实验中涉及的代码可以在Github中找到.一些不重要的内容将会略去,但是Github中保留了全部的实践过程. 语言建模 Our…

Recording my thought on the go might be fun when I check back later, so this kinda blog has no intention to be read by others(its just for recording, not article). but if you insist, hope you enjoy it. if you find me wrong, please let me know, very a…

题目来源:https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=3&page=show_problem&problem=38  Ecological Bin Packing  Background Bin packing, or the placement of objects of certain weights into different bins subject…

Ten Tips for Writing CS Papers, Part 1 As a non-native English speaker I can relate to the challenge of writing concise and clear English. Scientific writing is particularly challenging because the audience is only partially known at the time of writ…

The Android University ACM Team Selection Contest Time Limit: 1000ms   Memory limit: 65536K  有疑问?点这里^_^ 题目描述  Now it's 20000 A.D., and the androids also participate in the ACM Inter-national Collegiate Programming Contest (ACM/ICPC). In order to sele…

function model = SMOforSVM(X, y, C ) %sequential minimal optimization,SMO tol = 0.001; maxIters = 3000; global i1 i2 K Alpha M1 m1 w b [m, n] = size(X); K = (X*X'); Alpha = zeros(m,1); w = 0; b = 0; flag =1;iters = 1; while flag >0 & iters < max…

A Complete Tutorial on Tree Based Modeling from Scratch (in R & Python) MACHINE LEARNING PYTHON R   SHARE      MANISH SARASWAT, APRIL 12, 2016 / 52     Introduction Tree based learning algorithms are considered to be one of the best and mostly used s…

      首页 视界智尚 算法技术 每日技术 来打我呀 注册     实时SLAM的未来及与深度学习的比较 The Future of Real-Time SLAM and “Deep Learning vs SLAM”   Last month’s International Conference of Computer Vision (ICCV) was full of Deep Learning techniques, but before we declare an all-out C…

http://queue.acm.org/detail.cfm?id=1854041 The July/August issue of acmqueue is out now acmqueue is free for ACM professional members. Non-members can purchase an annual subscription for $19.99 or a single issue for $6.99. Download the app from iTune…

最近严重感觉到数学知识的不足! http://bbs.gameres.com/showthread.asp?threadid=10509 [译]Mathematics for Computer Graphics Mathematics for Computer Graphics数学在计算机图形学中的应用Greg Turk, August 1997 “学习计算机图形学需要多少的数学?”这是初学者最经常问的问题.答案取决于你想在计算机图形学领域钻研多深.如果仅仅使用周围唾手可得的图形软件,你不需要知…

http://java.dzone.com/articles/performance-tuning For most typical Spring/Hibernate enterprise applications, the application performance depends almost entirely on the performance of it's persistence layer. This post will go over how to confirm that…

Nine Great Books about Information Visualization Maybe it’s anachronistic to celebrate static, printed books when so many of us love and create interactive data displays. I don’t care. I love books. Edward Tufte, the patron saint of information visua…

Kaggle Bike Sharing Demand Prediction – How I got in top 5 percentile of participants? Introduction There are three types of people who take part in a Kaggle Competition: Type 1: Who are experts in machine learning and their motivation is to compete…

其中涉及的测试源码如下: For those who didn't install Javawith default settings, a systematic way for solving JNI class path problem is:1> include "System.out.println(System.getProperty("Java.library.path")); " in your "static" block,…

source link: 1.http://blog.bignerdranch.com/1907-hooked-on-dtrace-part-1/ 2.http://blog.bignerdranch.com/1968-hooked-on-dtrace-part-2/ 3.http://blog.bignerdranch.com/2031-hooked-on-dtrace-part-3/ 4.http://blog.bignerdranch.com/2150-hooked-on-dtrace-p…

Mathematics for Computer Graphics 最近严重感觉到数学知识的不足! http://bbs.gameres.com/showthread.asp?threadid=10509 [译]Mathematics for Computer Graphics Mathematics for Computer Graphics数学在计算机图形学中的应用Greg Turk, August 1997“学习计算机图形学需要多少的数学?”这是初学者最经常问的问题.答案取决于你想在计算机…

转载自:增广拉格朗日乘子法(Augmented Lagrange Method) 增广拉格朗日乘子法的作用是用来解决等式约束下的优化问题, 假定需要求解的问题如下: minimize f(X) s.t.: h(X)=0 其中,f:Rn->R; h:Rn->Rm 朴素拉格朗日乘子法的解决方案是: L(X,λ)=f(X)+μh(X); μ:Rm 此时,求解L对X和μ的偏导同时为零就可以得到最优解了. 增广拉格朗日乘子法的解决方案是: Lc(x,λ)=f(X)+μh(X)+1/2c|h(X)|2 每…

Background Bin packing, or the placement of objects of certain weights into different bins subject to certain constraints, is an historically interesting problem. Some bin packing problems are NP-complete but are amenable to dynamic programming solut…