Athanasios N. Nikolakopoulos

Publication Activity (10 Years)

Years Active: 2013-2023
Publications (10 Years): 30

Top Topics

Collaborative Filtering

Maximum Margin Matrix Factorization

Top Venues

Publications

Athanasios N. Nikolakopoulos, Swati Kaul, Siva Karthik Gade, Bella Dubrov, Umit Batur, Suleiman Ali Khan
SAGE: Structured Attribute Value Generation for Billion-Scale Product Catalogs. CoRR (2023)
Ruping Sun, Athanasios N. Nikolakopoulos
Elements and evolutionary determinants of genomic divergence between paired primary and metastatic tumors. PLoS Comput. Biol. 17 (3) (2021)
Vasileios Kalantzis, Georgios Kollias, Shashanka Ubaru, Athanasios N. Nikolakopoulos, Lior Horesh, Kenneth L. Clarkson
Projection techniques to update the truncated SVD of evolving matrices with applications. ICML (2021)
Athanasios N. Nikolakopoulos, Xia Ning, Christian Desrosiers, George Karypis
Trust your neighbors: A comprehensive survey of neighborhood-based methods for recommender systems. CoRR (2021)
Athanasios N. Nikolakopoulos
Random Surfing Revisited: Generalizing PageRank's Teleportation Model. CoRR (2020)
Athanasios N. Nikolakopoulos, George Karypis
Boosting Item-based Collaborative Filtering via Nearly Uncoupled Random Walks. ACM Trans. Knowl. Discov. Data 14 (6) (2020)
Vassilis Kalantzis, Georgios Kollias, Shashanka Ubaru, Athanasios N. Nikolakopoulos, Lior Horesh, Kenneth L. Clarkson
Projection techniques to update the truncated SVD of evolving matrices. CoRR (2020)
Athanasios N. Nikolakopoulos, Vassilis Kalantzis, Efstratios Gallopoulos, John D. Garofalakis
EigenRec: generalizing PureSVD for effective and efficient top-N recommendations. Knowl. Inf. Syst. 58 (1) (2019)
Athanasios N. Nikolakopoulos, George Karypis
Boosting Item-based Collaborative Filtering via Nearly Uncoupled Random Walks. CoRR (2019)
Dimitris Berberidis, Athanasios N. Nikolakopoulos, Georgios B. Giannakis
Adaptive Diffusions for Scalable Learning Over Graphs. IEEE Trans. Signal Process. 67 (5) (2019)
Athanasios N. Nikolakopoulos, George Karypis
RecWalk: Nearly Uncoupled Random Walks for Top-N Recommendation. WSDM (2019)
Athanasios N. Nikolakopoulos, Dimitris Berberidis, George Karypis, Georgios B. Giannakis
Personalized diffusions for top-n recommendation. RecSys (2019)
Agoritsa Polyzou, Athanasios N. Nikolakopoulos, George Karypis
Scholars Walk: A Markov Chain Framework for Course Recommendation. EDM (2019)
Dimitris Berberidis, Athanasios N. Nikolakopoulos, Georgios B. Giannakis
Adaptive Diffusions for Scalable Learning over Graphs. CoRR (2018)
Dimitris Berberidis, Athanasios N. Nikolakopoulos, Georgios B. Giannakis
Random Walks with Restarts for Graph-Based Classification: Teleportation Tuning and Sampling Design. ICASSP (2018)
Meng Ma, Athanasios N. Nikolakopoulos, Georgios B. Giannakis
Fast Decentralized Learning Via Hybrid Consensus Admm. ICASSP (2018)
Meng Ma, Athanasios N. Nikolakopoulos, Georgios B. Giannakis
Hybrid ADMM: a unifying and fast approach to decentralized optimization. EURASIP J. Adv. Signal Process. 2018 (2018)
Dimitris Berberidis, Athanasios N. Nikolakopoulos, Georgios B. Giannakis
AdaDIF: Adaptive Diffusions for Efficient Semi-supervised Learning over Graphs. IEEE BigData (2018)
Meng Ma, Athanasios N. Nikolakopoulos, Georgios B. Giannakis
Fast Decentralized Optimization over Networks. CoRR (2018)
Athanasios N. Nikolakopoulos, Vassilis Kalantzis, Efstratios Gallopoulos, John D. Garofalakis
Factored Proximity Models for Top-N Recommendations. ICBK (2017)
Vassilis N. Ioannidis, Meng Ma, Athanasios N. Nikolakopoulos, Georgios B. Giannakis
Kernel-based Inference of Functions over Graphs. CoRR (2017)
Vassilis N. Ioannidis, Athanasios N. Nikolakopoulos, Georgios B. Giannakis
Semi-parametric graph kernel-based reconstruction. GlobalSIP (2017)
Athanasios N. Nikolakopoulos, Antonia Korba, John D. Garofalakis
Random surfing on multipartite graphs. IEEE BigData (2016)
Athanasios N. Nikolakopoulos, John D. Garofalakis
On the Multi-Level Near Complete Decomposability of a Class of Multiprocessing Systems. PCI (2016)
Athanasios N. Nikolakopoulos, John D. Garofalakis
Random Surfing Without Teleportation. Algorithms, Probability, Networks, and Games (2015)
Athanasios N. Nikolakopoulos, John D. Garofalakis
Random Surfing Without Teleportation. CoRR (2015)
Athanasios N. Nikolakopoulos, Marianna A. Kouneli, John D. Garofalakis
Hierarchical Itemspace Rank: Exploiting hierarchy to alleviate sparsity in ranking-based recommendation. Neurocomputing 163 (2015)
Athanasios N. Nikolakopoulos, Vassilis Kalantzis, John D. Garofalakis
EIGENREC: An Efficient and Scalable Latent Factor Family for Top-N Recommendation. CoRR (2015)
Athanasios N. Nikolakopoulos, John D. Garofalakis
Top-N recommendations in the presence of sparsity: An NCD-based approach. Web Intell. 13 (4) (2015)
Athanasios N. Nikolakopoulos, John D. Garofalakis
Top-N recommendations in the presence of sparsity: An NCD-based approach. CoRR (2015)
Athanasios N. Nikolakopoulos, John D. Garofalakis
NCDREC: A Decomposability Inspired Framework for Top-N Recommendation. WI-IAT (2) (2014)
Athanasios N. Nikolakopoulos, Maria Kalantzi, John D. Garofalakis
On the Use of Lanczos Vectors for Efficient Latent Factor-Based Top-N Recommendation. WIMS (2014)
Athanasios N. Nikolakopoulos, Marianna A. Kouneli, John D. Garofalakis
A Novel Hierarchical Approach to Ranking-Based Collaborative Filtering. EANN (2) (2013)
Athanasios N. Nikolakopoulos, John D. Garofalakis
NCDawareRank: a novel ranking method that exploits the decomposable structure of the web. WSDM (2013)