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Social networks and their analysis

Class at Faculty of Mathematics and Physics |
NAIL116

Syllabus

Introduction to the area:

Information retrieval, web search, social network analysis

Main areas of interest in social networks and future directions

Fundamental paradigms of social network analysis:

Data and model description, text and web page pre-processing, graph data models, static and dynamic graph properties

Subgraph isomorphism, maximum common subgraph problem

Matching and distance computation in graphs

Topological descriptors for graph structures

Frequent substructure-based transformations and mining in graphs

Graph clustering and graph classification

Techniques for web data mining:

Web crawling and resource discovery

Search engine indexing and query processing, web spamming

Ranking algorithms: PageRank and HITS

Recommender systems: content-based methods, collaborative filtering, graph-based methods, clustering methods, latent factor models

Web usage mining: data collection and pre-processing, discovery and analysis of web usage patterns

Approaches to social network analysis:

Introduction and main properties, measures of centrality and prestige

Community detection: Kernighan-Lin algorithm and its analysis, clustering algorithms, overlapping communities

Node classification and label propagation, social influence analysis, detection of experts in social network

Evolution and link prediction in social networks

Applications:

Sentiment analysis

Opinion mining - Feature-based opinion mining and summarization, opinion search and opinion spam

Data, text and multimedia information mining in social networks

Advertizing on the web

Annotation

The concept of social networks is widely used to model mutual relationships between people (but also between other objects like chemical compounds). Intriguing problems from this area range from finding important structural patterns that influence interaction among the considered actors across sentiment analysis that studies people´s opinions, emotions, and attitudes to the analysis and evolution of the network structure itself.

Recently, the trends have shifted rather towards online social networks (e.g., Facebook, LinkedIn and MySpace) which allow for efficient data collection.