Hierarchical Clustering

Graph Partitioning and Spectral Methods

Detecting Algorithmic Bias (keynote at DIR 2016)

Natural experiments

Observational studies in social media

Link prediction

Clustering

Social Media Mining and Retrieval

Recommender Systems

Text similarity and the vector space model

Finding Dense Subgraphs

Text Indexing / Inverted Indices

Link-Based Ranking

Keynote talk: Big Crisis Data, an Open Invitation

Content-based link prediction

Indexing

Fairness-Aware Data Mining

Filtrado e-mail spam

Web Information Retrieval and Mining

Getting your stuff published :-)