599 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- National and Kapodistrian University of AthensGR24 papers
- National Technical University of AthensGR11 papers
- Athena Research and Innovation Center In Information Communication & Knowledge TechnologiesGR9 papers
- Athens State UniversityUS7 papers
- Centre National de la Recherche ScientifiqueFR7 papers
- Centrum Wiskunde & InformaticaNL7 papers
- Delft University of TechnologyNL7 papers
- École PolytechniqueFR7 papers
- University College LondonGB7 papers
- University of OxfordGB7 papers
- Laboratoire d'Informatique de l'École PolytechniqueFR6 papers
- University of AmsterdamNL6 papers
13 papers · 1 filter
A Survey of Paraphrasing and Textual Entailment Methods
Ion Androutsopoulos, Prodromos Malakasiotis
Paraphrasing methods recognize, generate, or extract phrases, sentences, or longer natural language expressions that convey almost the same information. Textual entailment methods,…
Log-concavity, ultra-log-concavity, and a maximum entropy property of discrete compound Poisson measures
Oliver Johnson, Ioannis Kontoyiannis, Mokshay Madiman
Sufficient conditions are developed, under which the compound Poisson distribution has maximal entropy within a natural class of probability measures on the nonnegative integers. R…
Proceedings Fourth Athens Colloquium on Algorithms and Complexity
Evangelos Markakis, Ioannis Milis
ACAC 2009 is organized by the Athens University of Economics and Business (AUEB) and it is the fourth in a series of meetings that aim to bring together researchers working on all…
A population-modulated bibliometric measure with an application in the field of statistics
John Panaretos, Chrisovaladis Malesios
We use confirmatory factor analysis to derive a unifying measure of comparison of scientists based on bibliometric measurements, by utilizing the h-index, some similar h-type indic…
Geometric Ergodicity and the Spectral Gap of Non-Reversible Markov Chains
Ioannis Kontoyiannis, Sean P. Meyn
We argue that the spectral theory of non-reversible Markov chains may often be more effectively cast within the framework of the naturally associated weighted- space $L_\…
Thinning, Entropy and the Law of Thin Numbers
Peter Harremoes, Oliver Johnson, Ioannis Kontoyiannis
Renyi's "thinning" operation on a discrete random variable is a natural discrete analog of the scaling operation for continuous random variables. The properties of thinning are inv…
Approximating a Diffusion by a Hidden Markov Model
Ioannis Kontoyiannis, Sean P. Meyn
For a wide class of continuous-time Markov processes, including all irreducible hypoelliptic diffusions evolving on an open, connected subset of $\RL^d$, the following are shown to…
Quality Classifiers for Open Source Software Repositories
George Tsatsaronis, Maria Halkidi, Emmanouel A. Giakoumakis
Open Source Software (OSS) often relies on large repositories, like SourceForge, for initial incubation. The OSS repositories offer a large variety of meta-data providing interesti…
Bounded Max-Colorings of Graphs
Evripidis Bampis, Alexander Kononov, Giorgio Lucarelli +1
In a bounded max-coloring of a vertex/edge weighted graph, each color class is of cardinality at most and of weight equal to the weight of the heaviest vertex/edge in this clas…
BLOGRANK: Ranking Weblogs Based On Connectivity And Similarity Features
A. Kritikopoulos, M. Sideri, I. Varlamis
A large part of the hidden web resides in weblog servers. New content is produced in a daily basis and the work of traditional search engines turns to be insufficient due to the na…
Behavioural and Dynamical Scenarios for Contingent Claims Valuation in Incomplete Markets
Lampros Boukas, Diogo Pinheiro, Alberto Pinto +2
We study the problem of determination of asset prices in an incomplete market proposing three different but related scenarios. One scenario uses a market game approach whereas the…
To Click or not to Click? The Role of Contextualized and User-Centric Web Snippets
N. Zotos, P. Tzekou, G. Tsatsaronis +3
When searching the web, it is often possible that there are too many results available for ambiguous queries. Text snippets, extracted from the retrieved pages, are an indicator of…
Multivariate Statistical Process Control Charts and the Problem of Interpretation: A Short Overview and Some Applications in Industry
S. Bersimis, J. Panaretos, S. Psarakis
Woodall and Montgomery [35] in a discussion paper, state that multivariate process control is one of the most rapidly developing sections of statistical process control. Nowadays,…