17 citations · 41 across the 6 of their papers we have counts for
9 papers
I Wish I Would Have Loved This One, But I Didn't -- A Multilingual Dataset for Counterfactual Detection in Product Reviews
James O'Neill, Polina Rozenshtein, Ryuichi Kiryo +2
Counterfactual statements describe events that did not or cannot take place. We consider the problem of counterfactual detection (CFD) in product reviews. For this purpose, we anno…
Discovering Dense Correlated Subgraphs in Dynamic Networks
Giulia Preti, Polina Rozenshtein, Aristides Gionis +1
Given a dynamic network, where edges appear and disappear over time, we are interested in finding sets of edges that have similar temporal behavior and form a dense subgraph. Forma…
Mining Dense Subgraphs with Similar Edges
Polina Rozenshtein, Giulia Preti, Aristides Gionis +1
When searching for interesting structures in graphs, it is often important to take into account not only the graph connectivity, but also the metadata available, such as node and e…
Inferring the strength of social ties: a community-driven approach
Polina Rozenshtein, Nikolaj Tatti, Aristides Gionis
Online social networks are growing and becoming denser. The social connections of a given person may have very high variability: from close friends and relatives to acquaintances t…
Finding events in temporal networks: Segmentation meets densest-subgraph discovery
Polina Rozenshtein, Francesco Bonchi, Aristides Gionis +2
In this paper we study the problem of discovering a timeline of events in a temporal network. We model events as dense subgraphs that occur within intervals of network activity. We…
From acquaintance to best friend forever: robust and fine-grained inference of social tie strengths
Florian Adriaens, Tijl De Bie, Aristides Gionis +2
Social networks often provide only a binary perspective on social ties: two individuals are either connected or not. While sometimes external information can be used to infer the s…
Reconstructing a cascade from temporal observations
Han Xiao, Polina Rozenshtein, Nikolaj Tatti +1
Given a subset of active nodes in a network can we re- construct the cascade that has generated these observa- tions? This is a problem that has been studied in the literature, but…
Community-aware network sparsification
Aristides Gionis, Polina Rozenshtein, Nikolaj Tatti +1
Network sparsification aims to reduce the number of edges of a network while maintaining its structural properties; such properties include shortest paths, cuts, spectral measures,…
Discovering topically- and temporally-coherent events in interaction networks
Han Xiao, Polina Rozenshtein, Aristides Gionis
With the increasing use of online communication platforms, such as email, twitter, and messaging applications, we are faced with a growing amount of data that combine content (what…