VLDB 2026 Research / reviewers in the wild / expert
Constantinos Panagiotakopoulos
dblp:02/3202
· DBLP profile ↗
4ranked-venue papers
4as first author
0since 2021 · last 2013
—ORCID · none
Domains — the database's venue-derived domains; a paper can count in several
Artificial intelligence and machine learning · 4 · 4 first-authorDatabases, data management, data science and information retrieval · 1 · 1 first-author
Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.
| Theoretical computer science
1 paper |
Approximation and online algorithms · 50% Algorithms and data structures · 50% |
Topics — the 2 heaviest of 2, each with the papers that count most for it
| Topic | Weight | Papers | Last | Evidence papers |
|---|---|---|---|---|
Approximation and online algorithms
online learning |
0.1 | 1 | 2010 | The Margin Perceptron with Unlearning · ICML 2010 |
Algorithms and data structures › learning algorithms
perceptron |
0.1 | 1 | 2010 | The Margin Perceptron with Unlearning · ICML 2010 |
Methods — techniques the papers use, named apart from their topics
unlearning · 0.1
| Year | Publication | Venue | Position |
|---|---|---|---|
| 2013 | The Stochastic Gradient Descent for the Primal L1-SVM Optimization Revisited
Constantinos Panagiotakopoulos, Petroula Tsampouka |
ECML/PKDD (3) | 1 |
| 2011 | The Perceptron with Dynamic Margin
Constantinos Panagiotakopoulos, Petroula Tsampouka |
ALT | 1 |
| 2011 | The Margitron: A Generalized Perceptron With MarginabstractWe identify the classical perceptron algorithm with margin as a member of a broader family of large margin classifiers, which we collectively call the margitron. The margitron, (despite its) sharing the same update rule with the perceptron, is shown in an incremental setting to converge in a finite number of updates to solutions possessing any desirable fraction of the maximum margin. We also report on experiments comparing the margitron with decomposition support vector machines, cutting-plane algorithms, and gradient descent methods on hard margin tasks involving linear kernels which are equivalent to 2-norm soft margin. Our results suggest that the margitron is very competitive. Constantinos Panagiotakopoulos, Petroula Tsampouka |
IEEE Trans. Neural Networks | 1 |
| 2010 | The Margin Perceptron with Unlearning
Constantinos Panagiotakopoulos, Petroula Tsampouka |
ICML | 1 |