Chicheng Zhang

I think the most important takeaway from this class is how to make visualization. I believe this is an important and useful skill to make as competitive in workplace. I would explain to the future scholar that this class is an introduction to Big Data. They will know what Big Data is and have a close touch to it. In this class they will learn…[Read more]

It’s me. Chicheng. She made a mistake.

I usually observe zhihu.com, which is a Q&A site like Quora.
I will store the digest of good answers. A row would be a tittle of an individual answer, and some columns would be the the type of the question, how much likes it receive, how much dislikes it receive and how many times it be archived.

The article I read was ‘Election Update: National Polls Show Clinton’s Lead Stabilizing — State Polls, Not So Much’. The poll will end soon, and Trump will be the next president. It will prove that the view of article was wrong. Maybe the data that been used is dirty. Fortunately, the writer said that the result was nat clear. ‘538’ will also exp…[Read more]

One example of a KPI that I use every day is the time (in hours ) I sleep everyday. This is specific and measurable – I use my Withthings Active Watch to record my sleep time. It is achievable – I can go to bed earlier or get up later to get longer sleep. It is relevant – how long I sleep has a significant effect on my health. And it is time…[Read more]

In my experience, I haven’t made one of those mistakes. In my view, the most important thing is that ‘Start working on the database without doing a full backup first’. When we are working an the database, the data is changed. If we make a big mistake that ruins the whole database, it is lucky that we have a backup. And we can have another chance.

I choose the article named ‘The End Of A Republican Party’ that discuss about Election2016, which is one of the most important events in these days. The article used data to analysis characters of GOP and showed the overall characters of GOP are whiter, older and less educated. Then tables shows the division within the party. People like or…[Read more]

After reading the article “Stephen Few on Data Visualization: 8 Core Principles”, the principle of Simplify is the most important for me. Data Visualization is invented for people to analysis and present data more conveniently and more directly. It helps people understand quickly.
So, Data Visualization must be simplified, and can present the ess…[Read more]

In my view, the most important takeaway from last week’s discussion is that data is created with bias.
Last month I wanted to buy a watch for myself, and I searched for information on a Chinese question&answer website called ‘zhihu’ (like Quora in America).
There are many answers recommend some fashion watches like DW and post elegant pictures o…[Read more]

From your ID name I think you are Chinese or have certain relation to China.
Do you have a Wechat account? Or you can just search Chicheng_Zhang, which is my account.
I hope we can help each other in this class.

-The dataset I found is the distribution of English vocabulary for foreign learners.
-I found the dataset on the website ‘Test Your Vocabulary’ http://testyourvocab.com/blog/2011-07-25-New-results-for-foreign-learners#mainchartNonnative
-After fulling up the questionnaire, the Web will give the result of your vocabulary, and then it has a report…[Read more]

I have followed 2016 Election for a long time.The article ‘Can A Candidate Be Too Old To Run For President?’ from Five Thirty Eight talked about the health issues of candidates in 2016 Election, which attracted a lot of attention of the public these days.
While Clinton are suffering from healthy problems, Trump is also face the risk of heart…[Read more]

It is said that boys perform better than girls when they are learning mathematics. To test this “Conventional wisdom”, I would like to collect all the boys’ and girls’ grades of mathematics recent 10 years in Temple. Separately calculate the average of grades and then compare them.