爱折腾的海宇Zhen

湖北 武汉

感兴趣的主题: IT数码 体育 新闻资讯 茕茕孑立 diaosi女士 睡觉睡到自然醒

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爱折腾的海宇Zhen 的课程评论

爱折腾的海宇Zhen 评论了课程: R Programming

2015-02-16 08:18

趁着寒假把这门课跟下来了。一共4周的内容不算多,都是R语言基础的东西:
W1: basic data types & subsetting
W2: control structure & scoping rules
W3: 各种loop function(反正我是晕了,都是用到现查)
W4: simulation (说白了就是怎么用R实现蒙特卡洛仿真)

编程作业和quiz是真刀实枪,主要靠做题来消化巩固知识+上手R编程

爱折腾的海宇Zhen 评论了课程: Gamification

2014-04-17 18:20

我会说最初注册这门课程是因为把它当作了博弈论么o(╯□╰)o
不过看了一开始的几节觉得还蛮有意思的,而且课程assignment难度不大,每周平均只需要2h不到,搞定quiz和统共3个Written assigments就可以了~
课程主要讲的是Gamification游戏化的概念,应用,核心模块,以及在社会各方面的应用。课程整体还是偏概念的讲解,3个WA是将课堂内容应用到实际不过随便纸上谈兵一下就ok的~
学了这门课就会发现网络中gamified system无处不在。linkedin里面资料完成度百分比,renren、微博的勋章,stack overflow的等级,就涉及到Gamification最重要的PBL triad(points,badges,Leaderboards)
这门课不能简单地划分为文科/理科领域,对于开发游戏、社交应用的程序猿,如何让你的用户对自己的app痴迷增加用户黏性?对于管理者,如何让下属愉快高效的工作。。。相信这门课程会对每个人每个领域都有所启发!

爱折腾的海宇Zhen 评论了课程: Machine Learning

2014-01-19 22:52

这门课从coursera诞生就一直很popular,前面也有很多大神评价过了,我就姑且说说自己的感受吧
1. 内容:的确是ML非常好的入门课程。大家听ML觉得很高大上,但是如果跟完了这门课,就会发现曾经”传说中的“ NN、SVM对自己都不再是传说。主要讲了:
supervised model: Linear Regression; Logistic Regression; NN; SVM
unsupervised model: clustering,PCA
application: 房价预测啊,手写数字识别,异常检测,推荐系统,OCR识别,etc. 还有处理大数据的一些技巧等等。
与工业实践结合的很好,而且由于是入门课,甚至连梯度的求法都不需要掌握~

2. 作业:编程软件Ng用的是Octave,不过是和matlab完全一样,我会说我全程都是在我的2013b上完成的么~~~
编程作业主体框架全都搭好了,而且pdf还会有很多提示。对于我个人来说,挑战性不是很大(小得意一下)。相比于现在正在上的computing for data analysis,作业提示真的很详细

3. 其他:作业错过每周的提交日期,只要在课程截止前提交只有20% penalty,这也会给很多业余时间紧张的童鞋上完课程的决心吧

总之,我觉得Ng不止是学术大牛,对教学也用了心,这门课门槛真的很低,欢迎对ML有兴趣的孩纸take!

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爱折腾的海宇Zhen 关注的课程

Linear and Integer Programming (Coursera) 3 个评论 关注

开始时间: 待定 持续时间: Unknown

主页: https://www.coursera.org/course/linearprogramming

简介: This course will cover the very basic ideas in optimization. Topics include the basic theory and algorithms behind linear and integer linear programming along with some of the important applications. We will also explore the theory of convex polyhedra using linear programming.

db: Introduction to Databases (Stanford Online) 1 个评论 关注

开始时间: 01/06/2014 持续时间: 未知

主页: https://class.stanford.edu/courses/Engineering/db/2014_1/about

简介: "Introduction to Databases" was one of Stanford's inaugural three massive open online courses in the fall of 2011 and was offered again in early 2013. January 2014 will mark its third offering. The course includes video lectures and demos with in-video quizzes to check understanding, in-depth standalone quizzes, a wide variety of automatically-checked interactive programming exercises, midterm and final exams, a discussion forum, optional additional exercises with solutions, and pointers to readings and resources. Taught by Professor Jennifer Widom, the curriculum draws from Stanford's popular Introduction to Databases course.

CVX101: Convex Optimization (Stanford Online) 1 个评论 关注

开始时间: 01/20/2014 持续时间: 未知

主页: https://class.stanford.edu/courses/Engineering/CVX101/Winter2014/about

简介: This course concentrates on recognizing and solving convex optimization problems that arise in applications. The syllabus includes: convex sets, functions, and optimization problems; basics of convex analysis; least-squares, linear and quadratic programs, semidefinite programming, minimax, extremal volume, and other problems; optimality conditions, duality theory, theorems of alternative, and applications; interior-point methods; applications to signal processing, statistics and machine learning, control and mechanical engineering, digital and analog circuit design, and finance.

Computer Networks (Coursera) 4 个评论 关注

开始时间: 待定 持续时间: Unknown

主页: https://www.coursera.org/course/comnetworks

简介: The Internet is a computer network that millions of people use every day. Understand the design strategies used to solve computer networking problems while you learn how the Internet works.

Algorithms, Part I (Coursera) 6 个评论 关注

开始时间: 01/22/2016 持续时间: 6 weeks

主页: https://www.coursera.org/course/algs4partI

简介: This course covers the essential information that every serious programmer needs to know about algorithms and data structures, with emphasis on applications and scientific performance analysis of Java implementations. Part I covers basic iterable data types, sorting, and searching algorithms.

Programming Handheld Systems with Android (Coursera) 0 个评论 关注

开始时间: 09/26/2014 持续时间: 8 weeks

主页: https://www.coursera.org/course/android

简介: Introduction to the design and implementation of applications for handheld systems, such as smartphones and tablets, running the Android Platform.

Better Leader, Richer Life (Coursera) 1 个评论 关注

开始时间: 待定 持续时间: Unknown

主页: https://www.coursera.org/course/totalleadership

简介: The Total Leadership approach will help you become a better leader by having a richer life and have a richer life by becoming a better leader. Learn a practical, proven method for how to articulate your core values and vision; build trust with your most important people; and achieve "four-way wins" -- improved performance at work or in school, at home with your family, in your community, and for your self (mind, body, spirit). It's not about "work/life balance"; it's about creating harmony among the different parts of your life.

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