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ORCIDAthanasios N. Nikolakopoulos
Person information
- affiliation: University of Minnesota, Minneapolis, MN, USA
- affiliation (PhD 2016): University of Patras, Greece
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Journal Articles
- 2021
[j7]Ruping Sun
, Athanasios N. Nikolakopoulos:
Elements and evolutionary determinants of genomic divergence between paired primary and metastatic tumors. PLoS Comput. Biol. 17(3) (2021)- 2020
- [j6]Athanasios N. Nikolakopoulos, George Karypis:
Boosting Item-based Collaborative Filtering via Nearly Uncoupled Random Walks. ACM Trans. Knowl. Discov. Data 14(6): 64:1-64:26 (2020) - 2019
- [j5]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): 59-81 (2019) - [j4]Dimitris Berberidis, Athanasios N. Nikolakopoulos, Georgios B. Giannakis:
Adaptive Diffusions for Scalable Learning Over Graphs. IEEE Trans. Signal Process. 67(5): 1307-1321 (2019) - 2018
- [j3]Meng Ma, Athanasios N. Nikolakopoulos, Georgios B. Giannakis:
Hybrid ADMM: a unifying and fast approach to decentralized optimization. EURASIP J. Adv. Signal Process. 2018: 73 (2018) - 2015
- [j2]Athanasios N. Nikolakopoulos, Marianna A. Kouneli, John D. Garofalakis:
Hierarchical Itemspace Rank: Exploiting hierarchy to alleviate sparsity in ranking-based recommendation. Neurocomputing 163: 126-136 (2015) - [j1]Athanasios N. Nikolakopoulos, John D. Garofalakis:
Top-N recommendations in the presence of sparsity: An NCD-based approach. Web Intell. 13(4): 247-265 (2015)
Conference and Workshop Papers
- 2021
- [c16]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: 5236-5246 - 2019
- [c15]Agoritsa Polyzou, Athanasios N. Nikolakopoulos, George Karypis:
Scholars Walk: A Markov Chain Framework for Course Recommendation. EDM 2019 - [c14]Athanasios N. Nikolakopoulos, Dimitris Berberidis, George Karypis, Georgios B. Giannakis:
Personalized diffusions for top-n recommendation. RecSys 2019: 260-268 - [c13]Athanasios N. Nikolakopoulos, George Karypis:
RecWalk: Nearly Uncoupled Random Walks for Top-N Recommendation. WSDM 2019: 150-158 - 2018
- [c12]Dimitris Berberidis, Athanasios N. Nikolakopoulos, Georgios B. Giannakis:
AdaDIF: Adaptive Diffusions for Efficient Semi-supervised Learning over Graphs. IEEE BigData 2018: 92-99 - [c11]Dimitris Berberidis, Athanasios N. Nikolakopoulos, Georgios B. Giannakis:
Random Walks with Restarts for Graph-Based Classification: Teleportation Tuning and Sampling Design. ICASSP 2018: 2811-2815 - [c10]Meng Ma, Athanasios N. Nikolakopoulos, Georgios B. Giannakis:
Fast Decentralized Learning Via Hybrid Consensus Admm. ICASSP 2018: 3829-3833 - 2017
- [c9]Vassilis N. Ioannidis, Athanasios N. Nikolakopoulos, Georgios B. Giannakis:
Semi-parametric graph kernel-based reconstruction. GlobalSIP 2017: 588-592 - [c8]Athanasios N. Nikolakopoulos, Vassilis Kalantzis, Efstratios Gallopoulos, John D. Garofalakis:
Factored Proximity Models for Top-N Recommendations. ICBK 2017: 80-87 - 2016
- [c7]Athanasios N. Nikolakopoulos, Antonia Korba, John D. Garofalakis:
Random surfing on multipartite graphs. IEEE BigData 2016: 736-745 - [c6]Athanasios N. Nikolakopoulos, John D. Garofalakis:
On the Multi-Level Near Complete Decomposability of a Class of Multiprocessing Systems. PCI 2016: 14 - 2015
- [c5]Athanasios N. Nikolakopoulos, John D. Garofalakis:
Random Surfing Without Teleportation. Algorithms, Probability, Networks, and Games 2015: 344-357 - 2014
- [c4]Athanasios N. Nikolakopoulos, John D. Garofalakis:
NCDREC: A Decomposability Inspired Framework for Top-N Recommendation. WI-IAT (2) 2014: 183-190 - [c3]Athanasios N. Nikolakopoulos, Maria Kalantzi, John D. Garofalakis:
On the Use of Lanczos Vectors for Efficient Latent Factor-Based Top-N Recommendation. WIMS 2014: 28:1-28:6 - 2013
- [c2]Athanasios N. Nikolakopoulos, Marianna A. Kouneli, John D. Garofalakis:
A Novel Hierarchical Approach to Ranking-Based Collaborative Filtering. EANN (2) 2013: 50-59 - [c1]Athanasios N. Nikolakopoulos, John D. Garofalakis:
NCDawareRank: a novel ranking method that exploits the decomposable structure of the web. WSDM 2013: 143-152
Reference Works
- 2022
- [r1]Athanasios N. Nikolakopoulos, Xia Ning, Christian Desrosiers, George Karypis:
Trust Your Neighbors: A Comprehensive Survey of Neighborhood-Based Methods for Recommender Systems. Recommender Systems Handbook 2022: 39-89
Informal and Other Publications
- 2023
- [i11]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 abs/2309.05920 (2023) - 2021
- [i10]Athanasios N. Nikolakopoulos, Xia Ning, Christian Desrosiers, George Karypis:
Trust your neighbors: A comprehensive survey of neighborhood-based methods for recommender systems. CoRR abs/2109.04584 (2021) - 2020
- [i9]Athanasios N. Nikolakopoulos:
Random Surfing Revisited: Generalizing PageRank's Teleportation Model. CoRR abs/2008.12916 (2020) - [i8]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 abs/2010.06392 (2020) - 2019
- [i7]Athanasios N. Nikolakopoulos, George Karypis:
Boosting Item-based Collaborative Filtering via Nearly Uncoupled Random Walks. CoRR abs/1909.03579 (2019) - 2018
- [i6]Dimitris Berberidis, Athanasios N. Nikolakopoulos, Georgios B. Giannakis:
Adaptive Diffusions for Scalable Learning over Graphs. CoRR abs/1804.02081 (2018) - [i5]Meng Ma, Athanasios N. Nikolakopoulos, Georgios B. Giannakis:
Fast Decentralized Optimization over Networks. CoRR abs/1804.02425 (2018) - 2017
- [i4]Vassilis N. Ioannidis, Meng Ma, Athanasios N. Nikolakopoulos, Georgios B. Giannakis:
Kernel-based Inference of Functions over Graphs. CoRR abs/1711.10353 (2017) - 2015
- [i3]Athanasios N. Nikolakopoulos, John D. Garofalakis:
Random Surfing Without Teleportation. CoRR abs/1506.00092 (2015) - [i2]Athanasios N. Nikolakopoulos, John D. Garofalakis:
Top-N recommendations in the presence of sparsity: An NCD-based approach. CoRR abs/1507.00043 (2015) - [i1]Athanasios N. Nikolakopoulos, Vassilis Kalantzis, John D. Garofalakis:
EIGENREC: An Efficient and Scalable Latent Factor Family for Top-N Recommendation. CoRR abs/1511.06033 (2015)
Coauthor Index
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