National Congress: signs for a clearer sky in Beijing

SummaryIn this article, we collected the data of the air quality in Beijing over the past 5 years.We assumed that the significant changes or improvements in air quality were related to China’s two top Annual Sessions – the Chinese People’s Political Consultative Congress (CPPCC) and the National People’s Congress (NPC).Besides, there were several news and current affairs affected the air quality in Beijing. We will also take a closer look at its air quality at that time to see if there are significant pollutants reductions during those periods.

Four years ago, the Chinese premier, Li Keqiang, said at the National People’s Congress and many more Chinese citizens watching live on state television, “We will resolutely declare war against pollution as we declare war against poverty”.

Since then, cities have cut concentrations of fine particles in the air by 32 percent on average. Just a few months before the premier’s speech, the country has released a national air quality action plan to require all urban areas to reduce concentrations of fine particulate matter pollution by at least 10 percent. As the capital city, Beijing was required to reduce pollution by 25 percent, of which the city set aside a massive $120 billion yuan to achieve this target.

All the statics in this project comes from Online China’s Air Quality , which is a public platform monitoring and analyzing China’s air quality covering statistics from 367 cities with AQI, PM2.5, PM10, S02, N02, O3, CO, temperature, humidity, wind scale, wind direction, satellite cloud picture and so on.

In this project, we mainly focus on Beijing’s air quality including AQI, air pollution category, and main pollutants such as PM2.5 during December 2013 to March 2018.

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Li’s family business map and spring layout analysis

Summary: In this article, from the graph of major holding companies and it’s main shareholders under Richard Li Tzar Kai, Victor Li Tzar Kuoi, and Li Ka-shing, we found in what areas are they investing and the complex network of relationships between subsidiaries. By analyzing the annual reports of Victor Li Tzar Kuoi and Richard Li Tzar Kai’s company’s companies, we can determine whether Li Ka-shing made the right decision when he announced his retirement. 

Background:

Li Ka-shing, a Hong Kong billionaire who will turn 90 this summer, announced his official retirement in May 2018. In January 2015, “Forbes” magazine announced the ranking of Hong Kong’s richest man-Li Ka-shing’s net assets totaled 33.5 billion U.S. dollars, or 260 billion U.S. dollars, making him the richest man in Hong Kong, only replaced by SF Express’s founder Wang Wei in 2017.

He announced on March 16th that he’ll step down as chairman of CK Hutchison Holding Ltd. and CK asset Holding Ltd., making way for his eldest son, Victor Li Tzar Kuoi. Victor assisted Li Ka-shing to run CK holding Ltd. for many years and his youngest son, Richard Li Tzar Kai mainly invested in communications and media business outside.

Richard Li Tzar Kai

We grabbed the information from Who’s Who and HKEX(The Stock Exchange of Hong Kong Limited) and got the name of major holding companies and main shareholder of companies. after establishing their relationship, we got graph below.

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Business Map of Richard Li Tzar Kai

Continue reading “Li’s family business map and spring layout analysis”

Who control the discourse power in 红楼梦?

SummaryDream of the Red Chamber, also called The Story of the Stone, composed by Cao Xueqin, is one of China’s four great classical novels. Long considered a masterpiece of Chinese literature. The novel is generally acknowledged to be the pinnacle of Chinese fiction. We use the graphics tool to analyze the short path, centralization, structure of degree, clustering coefficient and the clique of those data. And try to find out how closely those characters are connected, and who might be the Social Queen or King in this story.

According to analyst Jiang Qi, there are 448 characters in “A Dream of Red Mansions”. We picked 187 characters who are relatively more important than others in this book and use the graphics tool to analyze these data and get the network below to show their relationship in the Dream of the Red Chamber.

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The relationship between the 187 characters in the book

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Data & News Salon #1 | Digital News and Interactive Reporting Projects from Taiwan Reporter

《報導者》數位專案與互動式新聞

Digital News and Interactive Reporting Projects from
Taiwan Reporter

Time: 12/4/2018 (Thur), 2:45-3:45pm

Venue: CVA203, HKBU

Speakers: 陳貞樺(Mimi CHEN) & 黃禹禛 (Yu Chen HUANG)

Language: Mandarin | 國語

Register Here

Welcome to join us!
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Analyze tracking errors between ETF and stock market index in the last decade

5571521786922_.pic_hd.jpgSummary: In this article, under the context of Hong Kong’s Mandatory Provident Fund scheme (MPF), we find that some Exchange Traded Fund (ETF) occupy large holdings in a particular MPF fund. By calculating the tracking errors over the past ten years, the year of 2008 stands out with the highest tracking error, which corresponds with the global financial crisis. In other years with more stable stock markets, ETF performs relatively well. We also calculate returns between two ETFs and the indexes they track respectively; the results turn out to be different.

We use Python as a calculator, rely on pandas to read csv files downloaded from Yahoo Finance, and time series to present data in the form of charts.

Background

Hong Kong has a rapidly aging society. According to the Population Projections released by Census and Statistics Department, HK is expected to have a third of its population that aged 65 and above by the mid of 21st century. There is a growing concern over the issue of social security especially for the elderly, since the burden for the employed population in the future to take care of the retirees will be unbearable.

Continue reading “Analyze tracking errors between ETF and stock market index in the last decade”

Data News of the Week: Hong Kong Legislative By-Election 2018

The hope for pro-democracy camp to regain its veto power in the legislature vanished as Edward Yiu Chung Yim failed to beat his rival Vincent Cheng Wing-shun in last week’s by-election.

Legislative By-election 2018 was held on 11 March for four vacant seats in the council, following after the oath-taking saga which disqualified six councilors. New legislators were elected from three regions – New Territories East, Kowloon West, and Hong Kong Island, as well as Architectural, Surveying, Planning and Landscape functional constituency.

Election is all about numbers – voter turnout rate, numbers of votes, and percentage of voters supporting candidate A or B, making it a golden opportunity for data visualization. In this article, we select three local news media, which are Initium, SCMP, and HK01, to discuss their different coverages on the by-election.

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Data News of the Week: Sexual Assault Around The World

If you are a woman who is walking down the street alone in the late night, and accidentally you meet a group of guys hanging out with nowhere to go, what would happen when you pass them?

It may be the words “hey, beauty” or “hey, sexy girl,” or being instructed to smile. Or maybe more intentional: standing in the way or blocking the path in hope of some interaction. Or perhaps may get more aggressive, with hands reaching to inappropriate places. Actually, this kind of situation is far and wide, with one end harboring the potential for things to become more violent with physical abuse or rape. In Canada, the United States and The United Kingdom, women being sexually assaulted has become a serious problem. However, there is still a loophole after asking the police for help – Will the police believe you?

A 20-month investigation by The Globe and Mail reveals that sexual-assault victims are more likely to be believed in some areas of the country than in others. Continue reading “Data News of the Week: Sexual Assault Around The World”

Inside Douban’s Top 250, a door pries into the world of audiences in mainland China

Summary: In this article, we crawl and analyze the top 250 films evaluated by DouBan users, find their preference on specific directors, types and regions, and also see trends of movies in different regions, particularly in America and Hong Kong. Besides, we pay attention to analyze the rise and down of Hong Kong film productions, and also add some background information for a better understanding. 

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Douban top 250

In general, the best ways to reflect a movie’s preference and prevalence are through box office and ratings. But box office is biased since lots of movies are blocked in China and people are likely to be affected by several factors.  Thus, it’s more objective to examine it through ratings.

Douban Movie is a famous Chinese film rating site, with millions of users watching, rating, and commenting on movies day by day. Considering a large number of Douban users and the relatively objective measurement, data from the Top 250 list is suitable for our analysis.

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轉載:嶄新展示—— 立法會數據一目了然 | 獨家新聞解碼2

端傳媒數據新聞作品《20 萬條投票紀錄帶你解碼香港立法會》搜集本屆立法會議員由 2012 年至 2015 年的立法會投票記錄,分析他們的投票取態和規律,並結合文字、圖表、視頻等 多元的手法,將海量的信息以新穎、簡明、生動的方式呈現在 公眾面前。這是一次頗為成功的數據新聞嘗試,對於今後的數 據新聞發展具有重要的參考價值。該報道獲 2016 年亞洲出版協會(SOPA)卓越資料圖像優異獎。

受《獨家新聞解碼2》邀稿,胡辟礫與巢恬逸就創作過程進行了覆盤,通過本文展示了數據分析與可視化的中間過程,關鍵圖表的取捨決斷,以及不斷強調的「用戶調查」在新聞*產品* 中的應用。Data and News Society 獲授權轉載經書本編輯的終稿。請下載 PDF:《獨家新聞解碼2》195-203 。

欲知更多新聞作品背後的故事,以及購買本書,歡迎瀏覽本書網頁

原作品於2015年7月製作,彼時上屆立法會尚未完結,數據只覆蓋了2012-2015年。2016年上屆立法會完結後,作者使用同樣的方法對2012-2016年的全部投票進行了分析,並用交互圖表呈現投票傾向的變化。感興趣的讀者可以進一步閱讀上屆立法會有關 投票行爲 和 議案內容 的分析。

Some Scraping Targets and Ideas

This is a casual post to dump some target sites for scraping or just project ideas. Those messages were first sent through COMM7780/JOUR7280 WeChat group. Although we have only explored part of those possibilities this semester, the list is good for future reference. We can bounce off ideas in the comment below and enrich this list.

Top Targets: Movie, Shopping and News

Let’s first have a look at what the students care about from HW2 submission:

Scraping Targets from HW2 submission – COMM7780/JOUR7280

Continue reading “Some Scraping Targets and Ideas”