79 citations · 541 across the 84 of their papers we have counts for
9 papers · 1 filter
Sequential Diversification with Provable Guarantees
Honglian Wang, Sijing Tu, Aristides Gionis
Diversification is a useful tool for exploring large collections of information items. It has been used to reduce redundancy and cover multiple perspectives in information-search s…
Fair Clustering for Data Summarization: Improved Approximation Algorithms and Complexity Insights
Ameet Gadekar, Aristides Gionis, Suhas Thejaswi
Data summarization tasks are often modeled as -clustering problems, where the goal is to choose data points, called cluster centers, that best represent the dataset by minim…
Polaris: Sampling from the Multigraph Configuration Model with Prescribed Color Assortativity
Giulia Preti, Matteo Riondato, Aristides Gionis +1
We introduce Polaris, a network null model for colored multi-graphs that preserves the Joint Color Matrix. Polaris is specifically designed for studying network polarization, where…
Relevance meets Diversity: A User-Centric Framework for Knowledge Exploration through Recommendations
Erica Coppolillo, Giuseppe Manco, Aristides Gionis
Providing recommendations that are both relevant and diverse is a key consideration of modern recommender systems. Optimizing both of these measures presents a fundamental trade-of…
Scalable Temporal Motif Densest Subnetwork Discovery
Ilie Sarpe, Fabio Vandin, Aristides Gionis
Finding dense subnetworks, with density based on edges or more complex structures, such as subgraphs or -cliques, is a fundamental algorithmic problem with many applications. Wh…
Efficient Exploration of the Rashomon Set of Rule Set Models
Martino Ciaperoni, Han Xiao, Aristides Gionis
Today, as increasingly complex predictive models are developed, simple rule sets remain a crucial tool to obtain interpretable predictions and drive high-stakes decision making. Ho…