activity
20122026
most citedClustering and Community Detection in Directed Networks: A Survey

599 citations · 1.2k across the 114 of their papers we have counts for

collaborators
Showing cs.IRShow all

5 papers · 1 filter

cs.IR2025★ 3 cited

Rolling Forward: Enhancing LightGCN with Causal Graph Convolution for Credit Bond Recommendation

Ashraf Ghiye, Baptiste Barreau, Laurent Carlier +1

Graph Neural Networks have significantly advanced research in recommender systems over the past few years. These methods typically capture global interests using aggregated past in…

cs.IR2023★ 18 cited

Adaptive Collaborative Filtering with Personalized Time Decay Functions for Financial Product Recommendation

Ashraf Ghiye, Baptiste Barreau, Laurent Carlier +1

Classical recommender systems often assume that historical data are stationary and fail to account for the dynamic nature of user preferences, limiting their ability to provide rel…

cs.IR2018★ 6 cited

Scalable graph-based individual named entity identification

Sammy Khalife, Michalis Vazirgiannis

Named entity discovery (NED) is an important information retrieval problem that can be decomposed into two sub-problems. The first sub-problem, named entity recognition (NER), aims…

cs.IR2014★ 16 cited

Using temporal IDF for efficient novelty detection in text streams

Margarita Karkali, Francois Rousseau, Alexandros Ntoulas +1

Novelty detection in text streams is a challenging task that emerges in quite a few different scenarios, ranging from email thread filtering to RSS news feed recommendation on a sm…

cs.IR2012★ 1 cited

Toward an Integrated Framework for Automated Development and Optimization of Online Advertising Campaigns

Stamatina Thomaidou, Michalis Vazirgiannis, Kyriakos Liakopoulos

Creating and monitoring competitive and cost-effective pay-per-click advertisement campaigns through the web-search channel is a resource demanding task in terms of expertise and e…