Data-driven analysis has been increasingly used in various decision making processes. With more sources, including reviews, news, and photos, that can now be used for data analysis, the authenticity of data sources is in doubt. While previous literature attempted to detect fake data piece by...

For social networking platforms like Facebook, understanding the peer effects on it can be valuable to many applications, such as designing efficient advertisements with social endorsement. Therefore, we propose a statistical methodology that provides such understanding. These platforms contain...

Cryptocurrencies, such as Bitcoin, have been an important factor in some economic activities. For example, Bitcoin is the main payment method for ransomware attackers and retailers on the Darknet. It is therefore useful to understand the features of cryptocurrencies and their economic...

Digital technologies are creating more value and thus becoming more attractive to cyber criminals. Gary Becker provides a philosophy for understanding crimes from an economic perspective, but criminal behavior and potential policies against it differ in the context of a digital economy....