Athens University of Economics and Business

∙ Athina , Greece ∙ 0 followers

Athens University of Economics and Business cooperates with more than 200 Universities abroad, both through the Erasmus+ mobility programme for students, teaching and administrative staff, as well as through research and other academic programmes. Students are extremely active in initiatives related to entrepreneurship and innovation, while teaching staff receive significant distinctions and positions in organizations and scientific committees of international prestige, which testifies to its high quality in cognitive subjects. that heals.

Learning with Wasserstein barycenters and applications

In this work, learning schemes for measure-valued data are proposed, i.e...
12/26/2019 ∙ by G. Domazakis, et al. ∙ 14 ∙ share

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Classifying Graphs as Images with Convolutional Neural Networks

The task of graph classification is currently dominated by graph kernels...
07/29/2017 ∙ by Antoine Jean-Pierre Tixier, et al. ∙ 0 ∙ share

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Rejection-free Ensemble MCMC with applications to Factorial Hidden Markov Models

Bayesian inference for complex models is challenging due to the need to ...
03/24/2017 ∙ by Kaspar Märtens, et al. ∙ 0 ∙ share

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Bayesian Boolean Matrix Factorisation

Boolean matrix factorisation aims to decompose a binary data matrix into...
02/20/2017 ∙ by Tammo Rukat, et al. ∙ 0 ∙ share

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One-vs-Each Approximation to Softmax for Scalable Estimation of Probabilities

The softmax representation of probabilities for categorical variables pl...
09/23/2016 ∙ by Michalis K. Titsias, et al. ∙ 0 ∙ share

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Variational Inference for Uncertainty on the Inputs of Gaussian Process Models

The Gaussian process latent variable model (GP-LVM) provides a flexible ...
09/08/2014 ∙ by Andreas C. Damianou, et al. ∙ 0 ∙ share

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Scalable inference for a full multivariate stochastic volatility model

We introduce a multivariate stochastic volatility model for asset return...
10/18/2015 ∙ by P. Dellaportas, et al. ∙ 0 ∙ share

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Evaluation Measures for Hierarchical Classification: a unified view and novel approaches

Hierarchical classification addresses the problem of classifying items i...
06/28/2013 ∙ by Aris Kosmopoulos, et al. ∙ 0 ∙ share

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Inference for determinantal point processes without spectral knowledge

Determinantal point processes (DPPs) are point process models that natur...
07/04/2015 ∙ by Rémi Bardenet, et al. ∙ 0 ∙ share

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A Survey of Paraphrasing and Textual Entailment Methods

Paraphrasing methods recognize, generate, or extract phrases, sentences,...
12/18/2009 ∙ by Ion Androutsopoulos, et al. ∙ 0 ∙ share

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Quality Classifiers for Open Source Software Repositories

Open Source Software (OSS) often relies on large repositories, like Sour...
04/29/2009 ∙ by George Tsatsaronis, et al. ∙ 0 ∙ share

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Improved Abusive Comment Moderation with User Embeddings

Experimenting with a dataset of approximately 1.6M user comments from a ...
08/11/2017 ∙ by John Pavlopoulos, et al. ∙ 0 ∙ share

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Deep Learning for User Comment Moderation

Experimenting with a new dataset of 1.6M user comments from a Greek news...
05/28/2017 ∙ by John Pavlopoulos, et al. ∙ 0 ∙ share

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Analysis of Geographic/Delay-Tolerant Routing in Mobile Wireless Networks

A mobile wireless delay-tolerant network (DTN) model is proposed and ana...
01/07/2018 ∙ by Riccardo Cavallari, et al. ∙ 0 ∙ share

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Social Event Scheduling

A major challenge for social event organizers (e.g., event planning comp...
01/30/2018 ∙ by Nikos Bikakis, et al. ∙ 0 ∙ share

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Bayesian analysis of predictive Non-Homogeneous hidden Markov models using Polya-Gamma data augmentation

We consider Non-Homogeneous Hidden Markov Models (NHHMMs) for forecastin...
02/08/2018 ∙ by Constandina Koki, et al. ∙ 0 ∙ share

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ICN enabling CoAP Extensions for IP based IoT devices

The Constrained Application Protocol (CoAP) and its extensions, such as ...
02/14/2018 ∙ by Nikos Fotiou, et al. ∙ 0 ∙ share

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MaskLink: Efficient Link Discovery for Spatial Relations via Masking Areas

In this paper, we study the problem of spatial link discovery (LD), focu...
03/03/2018 ∙ by Georgios Santipantakis, et al. ∙ 0 ∙ share

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Code Review Comments: Language Matters

Recent research provides evidence that effective communication in collab...
03/06/2018 ∙ by Vasiliki Efstathiou, et al. ∙ 0 ∙ share

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Upstream Demand Uncertainty in a Two-Echelon Supply Chain: Comparative Statics via Stochastic Orderings

We revisit the classic Cournot model and extend it to a two-echelon supp...
03/09/2018 ∙ by Constandina Koki, et al. ∙ 0 ∙ share

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The Greek Parliament of 2012: Coalition Formations & Power Indices in Context

The twin elections of 2012 in Greece had a manifest impact on the politi...
03/09/2018 ∙ by Constandina Koki, et al. ∙ 0 ∙ share

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The Greek Parliament of 2012: Coalitions, Incentives & Power Indices in Context

In this retrospective study, we revisit the twin Greek Parliamentary ele...
03/09/2018 ∙ by Constandina Koki, et al. ∙ 0 ∙ share

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Fully Scalable Gaussian Processes using Subspace Inducing Inputs

We introduce fully scalable Gaussian processes, an implementation scheme...
07/06/2018 ∙ by Aristeidis Panos, et al. ∙ 0 ∙ share

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Astraea: A Decentralized Blockchain Oracle

The public blockchain was originally conceived to process monetary trans...
08/01/2018 ∙ by John Adler, et al. ∙ 0 ∙ share

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A Simple Network of Nodes Moving on the Circle

Two simple Markov processes are examined, one in discrete and one in con...
08/11/2018 ∙ by Dimitris Cheliotis, et al. ∙ 0 ∙ share

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Measuring Market Performance with Stochastic Demand: Price of Anarchy and Price of Uncertainty

Globally operating suppliers face the rising challenge of wholesale pric...
08/11/2018 ∙ by Costis Melolidakis, et al. ∙ 0 ∙ share

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Relative Age of Information: Maintaining Freshness while Considering the Most Recently Generated Information

A queueing system handling a sequence of message arrivals is considered ...
08/01/2018 ∙ by George Kesidis, et al. ∙ 0 ∙ share

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Generating Texts with Integer Linear Programming

Concept-to-text generation typically employs a pipeline architecture, wh...
10/31/2018 ∙ by Gerasimos Lampouras, et al. ∙ 0 ∙ share

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Interacting with the Internet of Things using Smart Contracts and Blockchain Technologies

Despite technological advances, most smart objects in the Internet of Th...
01/23/2019 ∙ by Nikos Fotiou, et al. ∙ 0 ∙ share

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Smart contracts for the Internet of Things: opportunities and challenges

With the Internet of Things (IoT), Things are expected to live in differ...
01/23/2019 ∙ by Nikos Fotiou, et al. ∙ 0 ∙ share

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Declarative Data Analytics: a Survey

The area of declarative data analytics explores the application of the d...
02/04/2019 ∙ by Nantia Makrynioti, et al. ∙ 0 ∙ share

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Does Unit-Tested Code Crash? A Case Study of Eclipse

Context: Software development projects increasingly adopt unit testing a...
03/10/2019 ∙ by Efstathia Chioteli, et al. ∙ 0 ∙ share

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On the Feasibility of Transfer-learning Code Smells using Deep Learning

Context: A substantial amount of work has been done to detect smells in ...
04/05/2019 ∙ by Tushar Sharma, et al. ∙ 0 ∙ share

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The distribution of age-of-information performance measures for message processing systems

The idea behind the recently introduced "age of information" performance...
04/11/2019 ∙ by George Kesidis, et al. ∙ 0 ∙ share

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Semantic Source Code Models Using Identifier Embeddings

The emergence of online open source repositories in the recent years has...
04/15/2019 ∙ by Vasiliki Efstathiou, et al. ∙ 0 ∙ share

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High-dimensional variable selection via low-dimensional adaptive learning

A stochastic search method, the so-called Adaptive Subspace (AdaSub) met...
04/17/2019 ∙ by Christian Staerk, et al. ∙ 0 ∙ share

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Interledger Smart Contracts for Decentralized Authorization to Constrained Things

We present models that utilize smart contracts and interledger mechanism...
05/05/2019 ∙ by Vasilios A. Siris, et al. ∙ 0 ∙ share

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OAuth 2.0 meets Blockchain for Authorization in Constrained IoT Environments

We present models for utilizing blockchain and smart contract technology...
05/05/2019 ∙ by Vasilios A. Siris, et al. ∙ 0 ∙ share

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A Survey on Biomedical Image Captioning

Image captioning applied to biomedical images can assist and accelerate ...
05/26/2019 ∙ by Vasiliki Kougia, et al. ∙ 0 ∙ share

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Clustering Multivariate Data using Factor Analytic Bayesian Mixtures with an Unknown Number of Components

Recent work on overfitting Bayesian mixtures of distributions offers a p...
06/02/2019 ∙ by Panagiotis Papastamoulis, et al. ∙ 0 ∙ share

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Embedding Biomedical Ontologies by Jointly Encoding Network Structure and Textual Node Descriptors

Network Embedding (NE) methods, which map network nodes to low-dimension...
06/13/2019 ∙ by Sotiris Kotitsas, et al. ∙ 0 ∙ share

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Transfer Learning for Causal Sentence Detection

We consider the task of detecting sentences that express causality, as a...
06/18/2019 ∙ by Manolis Kyriakakis, et al. ∙ 0 ∙ share

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Secure IoT access at scale using blockchains and smart contracts

Blockchains and smart contracts are an emerging, promising technology, t...
07/08/2019 ∙ by Nikos Fotiou, et al. ∙ 0 ∙ share

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sql4ml A declarative end-to-end workflow for machine learning

We present sql4ml, a system for expressing supervised machine learning (...
07/29/2019 ∙ by Nantia Makrynioti, et al. ∙ 0 ∙ share

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Revisiting the Graph Isomorphism Problem with Semidefinite Programming

We present a new algorithm for the graph isomorphism problem which solve...
08/17/2019 ∙ by Giannis Nikolentzos, et al. ∙ 0 ∙ share

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SumQE: a BERT-based Summary Quality Estimation Model

We propose SumQE, a novel Quality Estimation model for summarization bas...
09/02/2019 ∙ by Stratos Xenouleas, et al. ∙ 0 ∙ share

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Bayesian Prediction of Volleyball Sets Using the Truncated Skellam and the Ordered Multinomial Models

In this work, we focus on building Bayesian models to analyze the outcom...
11/11/2019 ∙ by Ioannis Ntzoufras, et al. ∙ 0 ∙ share

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Enabling Opportunistic Users in Multi-Tenant IoT Systems using Decentralized Identifiers and Permissioned Blockchains

In this work, we leverage advances in decentralized identifiers and perm...
11/13/2019 ∙ by Nikos Fotiou, et al. ∙ 0 ∙ share

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Exploiting Satellite Broadcast despite HTTPS

HTTPS enhances end-user privacy and is often preferred or enforced by ov...
11/13/2019 ∙ by Nikos Fotiou, et al. ∙ 0 ∙ share

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An Ensemble Method for Producing Word Representations for the Greek Language

In this paper we present a new ensemble method, Continuous Bag-of-Skip-g...
12/10/2019 ∙ by Michalis Lioudakis, et al. ∙ 0 ∙ share

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Athens University of Economics and Business

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