Xingru Chen
2019 | An Earth Pig Year | 惊蛰

## Choose A or B

Background
El Farol Bar problem (1994).

New version
The final exam of Introduction to Logic has one single choice question with two options A and B. If more than half of the class choose A and you choose A, you get 2 points. If more than half of the class choose A and you choose B, you get 10 points. If more than half of the class choose B, you get 0 points no matter what your entry is.

Remarks
The situation is not a Prisoner dilemma which featuring a two individual game.

Methods
Game theory (finding non-trivial Nash equilibrium and applying Pareto improvement to better the group payoff).

## How to make a starry repost network

Background
Posts (tweets) and reposts (retweets) in social media platform.

Case Study
A repost network featuring a star in the center (a celebrity), several planets (her/his boosters) and the corresponding satellites (their sockpuppets) as well as the nebula (ordinary fans).

Data source
The repost data of a post published by a celebrity in Weibo.

Tools
Python for scraping, R for processing data and constructing the network, Gephi for visualizing and Photoshop, iMovie or Vegas for editing.

## Rigging by the fans

Background
Fandom in East Asia.

Case Study
Online fan labor in China.

Data source
A voting poll opened by the social media platform Weibo to measure the popularity of 30 idols. It lasted for a week (7 days/24 hours).

Method
Anomaly detection.

## Who will be in the next boy group

Background
Entertainment industry in east Asia.

Case Study
A talent agency in China, TF Entertainment and its pre-debut trainee team.
Pick the five most popular ones from the team.

Data source
The hashtag data from a social media platform, Weibo, which is a twitter like microblogging website. Five parameters consisting of page view, number of fans, number of posts, number of daily active fans and fraction of daily active fans are considered.

Method
PCA analysis(normalized on the first component and the first two components) and k-means clustering.