一.课程简介: text mining and analytics 是一门在coursera上的公开课,由美国伊利诺伊大学香槟分校(UIUC)计算机系教授 chengxiang zhai 讲授,公开课链接:https://class.coursera.org/textanalytics-001/wiki/view?page=Programming_Assignments_Overview. 二.课程大纲: 三.课程主要内容 3.1 Text representation 可以从以下几个方面来对文…
Anomaly Detection and Recommender Systems 本周编程作业分为两部分:异常检测和推荐系统. 异常检测:本质就是使用样本的到特种值的gaussian分布,来预估正确的特征值的范围.对于一些特殊情况可以使用,多元高斯分布. 要注意该方法与监督学习的不同的适用性特征. 推荐系统:本例程中使用了,预测用户对不同类型的电影评分来给用户推荐电影. 代码在gitlab.…
Support Vector Machines I have some issues to state. First, there were some bugs in original code which may be caused by versions. I don't know... There are three pictures u need to draw a division boundary. The first calls 'visualizeBoundaryLinear.m…
5 类 5.1 改进5.1节的Counter类,让它不要在Int.MaxValue时变成负数 class Count{ private var value = Int.MaxValue else value } def current = value } 5.2 编写一个BankAccount类,增加deposit和withdraw方法,和一个仅仅读的balance属性 ){ def deposit(){} def withdraw(){} } 5.3 编写一个Time类,增加仅仅读属性hou…
1. Functional programming treats computation as the evaluation of mathematical and avoids state and mutable data. Scala encourages an expression-oriented programming(EOP) 1) In expression-oriented programming every statement is an expression. A state…
Functions in Java Prior to the introduction of Lambda Expressions feature in version 8, Java had long been known as a purely object-oriented programming language. "Everything is an Object" is the philosophy deep in the language design. Objects a…
In computer science, functional programming is a programming paradigm, a style of building the structure and elements of computer programs, that treats computation as the evaluation of mathematical functions and avoids state and mutable data. It is a…
