Sentiment analysis has been one of the most active research areas in the past decade due
to its vast applications. Sentiment quantification, a new research problem in this field …

In recent years, malware has grown faster than ever in volume, form and harmfulness. While
existing static or dynamic analysis techniques can meet the common user needs for …

This paper studies community formation in OSS collaboration networks. While most current
work examines the emergence of small-scale OSS projects, our approach draws on a large …

Analysts interested in understanding the community structure of a particular real-world
network will often simply choose a popular community detection algorithm and trust the …

Link cohesion is a new type of metric used to assess how supported an edge is relativeto
other edges, accounting for nearby alternate paths and associated vertex degrees …

Sentiment analysis has been one of the most active research areas in the past decade due
to its vast applications. Sentiment quantification, a new research problem in this field …

This thesis studies two problems centered around non-backtracking walks on graphs. First,
we analyze the spectrum of the non-backtracking matrix of a graph. We show how to obtain …