Fraud-RLA: A Reinforcement Learning Adversarial Attack Against Credit Card Fraud Detection
D. Lunghi, Y. Molinghen, A. Simitsis, T. Lenaerts, G. Bontempi
CAPS: Cost-Aware ML Pipeline Selection
A. Kontaxakis, D. Sacharidis, A. Abelló, S. Nadal, A. Simitsis
APEROL: Adaptive Parallel Edge-to-Cloud Runtime Optimization for Layered Workflow Execution
D. Banelas, A. Simitsis, N. Giatrakos
Optimizing UDF Queries in SQL Data Engines
K. Chasialis, Y. Foufoulas, A. Simitsis, Y. Ioannidis
Supervised Cardinality Estimation for Similarity Queries on Knowledge Graphs
G. Chatzigeorgakidis, D. Skoutas, A. Simitsis
Comparative Analysis of Indexing Techniques for Table Search in Data Lakes
I. Taha, M. Lissandrini, A. Simitsis, Y. Ioannidis
The UDFBench Benchmark for General-purpose UDF Queries
Y. Foufoulas, T. Palaiologou, A. Simitsis
Best VLDB EAB Paper Award
UDFBench: A Tool for Benchmarking UDF Queries on SQL Engines
Y. Foufoulas, T. Palaiologou, A. Simitsis
HAIDES: Adaptive Approximation of Inference Queries over Unstructured Data
C. Papadopoulos, A. Simitsis, T. Bach Pedersen
Hyppo: Efficient Discovery and Execution of Data Science Pipelines in Collaborative Environments
A. Kontaxakis, D. Sacharidis, A. Simitsis, A. Abello, S. Nadal
Proceedings of the 28th International Conference on Extending Database Technology (EDBT'25)
A. Simitsis, B. Kemme, A. Queralt, O. Romero, P. Jovanovic
Investigating Learning Join Order Optimization Strategies for Rule-based Data Engines
A. Karvelas, Y. Foufoulas, A. Simitsis, Y. Ioannidis
Workload Placement on Heterogeneous CPU-GPU Systems
M. N. L. Carvalho, A. Simitsis, A. Queralt, O. Romero
HYPPO: Using Equivalences to Optimize Pipelines in Exploratory Machine Learning
A. Kontaxakis, D. Sacharidis, A. Simitsis, A. Abello, S. Nadal
QFusor: A UDF Optimizer Plugin for SQL Databases
K. Chasialis, T. Palaiologou, Y. Foufoulas, A. Simitsis, Y. Ioannidis
Best IEEE ICDE Demo Award
Performance Analysis of Distributed GPU-Accelerated Task-Based Workflows
M. N. L. Carvalho, A. Queralt, O. Romero, A. Simitsis, C. Tatu, R. M. Badia
MIP: Advanced Data Processing and Analytics for Science and Medicine
K. Filippopolitis, Y. Foufoulas, M. Garofalakis, A. Glenis, Y. Ioannidis, T. Karabatsis, M.-O. Katsouli, E. Maili, A. Papageorgiou-Mariglis, G. Papanikos, G. Pikramenos, J. Sakellariou, A. Simitsis, P. Ducouret, P. Ryvlin, M.-G. Spuhler
Assessing Adversarial Attacks in Real-World Fraud Detection
D. Lunghi, A. Simitsis, G. Bontempi
A Study on Efficient Indexing for Table Search in Data Lakes
I. Taha, M. Lissandrini, A. Simitsis, Y. Ioannidis
Efficient Execution of User-Defined Functions in SQL Queries
Y. Foufoulas, A. Simitsis
Adversarial Learning in Real-World Fraud Detection: Challenges and Perspectives
D. Lunghi, A. Simitsis, O. Caelen, G. Bontempi
User-Defined Functions in Modern Data Engines
Y. Foufoulas, A. Simitsis
The History, Present, and Future of ETL Technology
A. Simitsis, S. Skiadopoulos, P. Vassiliadis
Test-of-Time Award invited talk
Toulouse: Learning Join Order Optimization Policies for Rule-based Data Engines
A. Karvelas, Y. Foufoulas, A. Simitsis, Y. Ioannidis
YeSQL: "You extend SQL" with Rich and Highly Performant User-Defined Functions in Relational Databases
Y. Foufoulas, A. Simitsis, L. Stamatogiannakis, Y. Ioannidis
YeSQL: Rich User-Defined Functions without the Overhead
Y. Foufoulas, A. Simitsis, Y. Ioannidis
Database Optimizers in the Era of Learning
D. Tsesmelis, A. Simitsis
SheerMP: Optimized Streaming Analytics-as-a-Service over Multi-site and Multi-platform Settings
G. Stamatakis, A. Kontaxakis, A. Simitsis, N. Giatrakos, A. Deligiannakis
Extreme-Scale Interactive Cross-Platform Streaming Analytics - The INFORE Approach
A. Deligiannakis, N. Giatrakos, Y. Kotidis, V. Samoladas, A. Simitsis
INforE: Interactive Cross-platform Analytics for Everyone
N.Giatrakos, D.Arnu, T.Bitsakis, A.Deligiannakis, M.N. Garofalakis, R.Klinkenberg, A.Konidaris, A.Kontaxakis, Y.Kotidis, V.Samoladas, A.Simitsis, G.Stamatakis, F.Temme, M.Torok, E.Yaqub, A.Montagud, M.Ponce de Leon, H.Arndt, S.Burkard
Automated Performance Management for the Big Data Stack
A. Arvanitis, S. Babu, E. Chu, A. Popescu, A. Simitsis, K. Wilkinson
Cost-Effective, Workload-Adaptive Migration of Big Data Applications to the Cloud
V. Giannakouris, A. Fernandez, A. Simitsis, S. Babu
Extraction, Transformation, and Loading
A. Simitsis, P. Vassiliadis
The many faces of data-centric workflow optimization: a survey
G. Kougka, A. Gounaris, A. Simitsis
Big Data Management: New Frontiers, New Paradigms
A. Cuzzocrea, A. Simitsis, I-Y. Song
GnosisMiner: Reading Order Recommendations over Document Collections
G. Koutrika, A. Simitsis
Janus: Transactional Processing of Navigational and Analytics Graph Queries on Many-core Servers
H. Kimura, A. Simitsis, K. Wilkinson
Incremental Consolidation of Data-Intensive Multi-Flows
P. Jovanovic, O. Romero, A. Simitsis, A. Abelló
Multi-core column-store parallelization under concurrent workload
M. Gawade, M. L. Kersten, A. Simitsis
A hybrid solution for mixed workloads on dynamic graphs
M. Das, A. Simitsis, K. Wilkinson
Using Semantic Web Technologies for Exploratory OLAP: A Survey
A. Abello, O. Romero, T. Pedersen, R. Berlanga Llavori, V. Nebot, M. Aramburu, A. Simitsis
Quarry: Digging Up the Gems of Your Data Treasury
P. Jovanovic, O. Romero, A. Simitsis, A. Abello, H. Candon, S. Nadal
Proceedings of the 17th International Workshop on Data Warehousing and OLAP (DOLAP)
I.-Y. Song, A. Simitsis, A. Cuzzocrea
Engine Independence for Logical Analytic Flows
P. Jovanovic, A. Simitsis, K. Wilkinson
BabbleFlow - A Translator for Analytic Data Flow Programs
P. Jovanovic, A. Simitsis, K. Wilkinson
VQA: Vertica Query Analyzer
A. Simitsis, K. Wilkinson, J. Blais, J. Walsh
A Requirement-Driven Approach to the Design and Evolution of Data Warehouses
P. Jovanovic, O. Romero, A. Simitsis, A. Abelló, D. Mayorova
xPAD: A Platform for Analytic Data Flows
A. Simitsis, K. Wilkinson, P. Jovanovic
The Farm - where Pig Scripts are bred and raised
C. P. Sayers, A. Simitsis, G. Koutrika, A. G. Gonzalez, D. T. Cantu, M. Hsu
HFMS: Managing the Lifecycle and Complexity of Hybrid Analytic Data Flows
A. Simitsis, K. Wilkinson, U. Dayal, M. Hsu
Mirror mirror on the wall, which query’s fairest of them all?
G. Koutrika, A. Simitsis
Hybrid Analytic Flows - the Case for Optimization
A. Simitsis, K. Wilkinson, U. Dayal
Scheduling Strategies for Efficient ETL Execution
A. Karagiannis, P. Vassiliadis, A. Simitsis
Metrics for the Prediction of Evolution Impact in ETL Ecosystems: A Case Study
G. Papastefanatos, P. Vassiliadis, A. Simitsis, Y. Vassiliou
Semantic Web Technologies for Business Intelligence
R. Berlanga, O. Romero, A. Simitsis, V. Nebot, T.B. Pedersen, A. Abelló, M.J. Aramburu
Optimizing Analytic Data Flows for Multiple Execution Engines
A. Simitsis, K. Wilkinson, M. Castellanos, U. Dayal
Logos: A System for Translating Queries into Narratives
A. Kokkalis, P. Vagenas, A. Zervakis, A. Simitsis, G. Koutrika, Y. E. Ioannidis
CloudAlloc: A Monitoring and Reservation System for Compute Clusters
E. Iori, A. Simitsis, T. Palpanas, K. Wilkinson, S. Harizopoulos
Integrating ETL Processes from Information Requirements
P. Jovanovic, O. Romero, A. Simitsis, A. Abelló
Requirement-driven Creation and Deployment of Multidimensional and ETL Designs
P. Jovanovic, O. Romero, A. Simitsis, A. Abelló
Optimizing Flows for Real Time Operations Management
A. Simitsis, C. Gupta, K. Wilkinson, U. Dayal
ORE: An Iterative Approach to the Design and Evolution of Multi-Dimensional Schemas
P. Jovanovic, O. Romero, A. Simitsis, A. Abelló
Revisiting ETL Benchmarking: The Case for Hybrid Flows
A. Simitsis, K. Wilkinson
Preface to the Industrial Track
A. Simitsis, H. Van Mingroot
Advances in Conceptual Modeling: Recent Developments and New Directions
O. De Troyer, C. B. Medeiros, R. Billen, P. Hallot, A. Simitsis, H. Van Mingroot
ISBN 978-3-642-24573-2, Lecture Notes in Computer Science 6999, Springer, 2011.
Optimization of Analytic Data Flows for Next Generation Business Intelligence Applications
U. Dayal, K. Wilkinson, A. Simitsis, M. Castellanos, L. Paz
Macro-level Scheduling of ETL Workflows
A. Karagiannis, P. Vassiliadis, A. Simitsis
GEM: Requirement-driven Generation of ETL and Multidimensional Conceptual Designs
O. Romero, A. Simitsis, A. Abelló
Designing Integration Flows Using Hypercubes
K. Wilkinson, A. Simitsis
Propagating Evolution Events in Data-Centric Software Artifacts
G. Papastefanatos, P. Vassiliadis, A. Simitsis
Ranking and Clustering Web Services Using Multi-Criteria Dominance Relationships
D. Skoutas, D. Sacharidis, A. Simitsis, T.K. Sellis
Representation of Conceptual ETL Designs in Natural Language Using Semantic Web Technology
A. Simitsis, D. Skoutas, and M. Castellanos
Leveraging Business Process Models for ETL Design
K. Wilkinson, A. Simitsis, U. Dayal, M. Castellanos
Explaining Structured Queries in Natural Language
G. Koutrika, A. Simitsis, Y. Ioannidis
Optimizing ETL Workflows for Fault-Tolerance
A. Simitsis, K. Wilkinson, U. Dayal, M. Castellanos
Explaining Structured Queries in Natural Language
G. Koutrika, A. Simitsis, Y. Ioannidis
HECATAEUS: Regulating Schema Evolution
G. Papastefanatos, P. Vassiliadis, A. Simitsis, Y. Vassiliou
Partitioning Real-Time ETL Workflows
A. Simitsis, C. Gupta, S. Wang, U. Dayal
DBMSs Should Talk Back Too
Y. Ioannidis, A. Simitsis
Ontology-driven Conceptual Design of ETL Processes using Graph Transformations
D. Skoutas, A. Simitsis, T.K. Sellis
Policy-regulated Management of ETL Evolution
G. Papastefanatos, P. Vassiliadis, A. Simitsis, Y. Vassiliou
Business Processes Meet Operational Business Intelligence
U. Dayal, K. Wilkinson, A. Simitsis, M. Castellanos
Near Real Time ETL
P. Vassiliadis, A. Simitsis
Extraction, Transformation, and Loading
P. Vassiliadis, A. Simitsis
A Taxonomy of ETL Activities
P. Vassiliadis, A. Simitsis, E. Baikousi
Rule-based Management of Schema Changes at ETL Sources
G. Papastefanatos, P. Vassiliadis, A. Simitsis, T. Sellis, Y. Vassiliou
QoX-Driven ETL Design: Reducing the Cost of the ETL Consulting Engagements
A. Simitsis, K. Wilkinson, M. Castellanos, U. Dayal
Top-k Dominant Web Services Under Multi-Criteria Matching
D. Skoutas, D. Sacharidis, A. Simitsis, V. Kantere, T.K. Sellis
Benchmarking ETL Workflows
A. Simitsis, P. Vassiliadis, U. Dayal, A. Karagiannis, V. Tziovara
QoX-Driven ETL Design: Reducing the Cost of ETL Consulting Engagements
A. Simitsis, K. Wilkinson, M. Castellanos, U. Dayal
Data Integration Flows for Business Intelligence
U. Dayal, M. Castellanos, A. Simitsis, K. Wilkinson
Automating the Loading of Business Process Data Warehouses
M. Castellanos, A. Simitsis, K. Wilkinson, U. Dayal
Top-k Dominant Web Services Under Multi-Criteria Matching
D. Skoutas, D. Sacharidis, A. Simitsis, V. Kantere, T.K. Sellis
Natural Language Reporting for ETL Processes
A. Simitsis, D. Skoutas, M. Castellanos
Design Metrics for Data Warehouse Evolution
G. Papastefanatos, P. Vassiliadis, A. Simitsis, Y. Vassiliou
Multidimensional Content eXploration
A. Simitsis, A. Baid, Y. Sismanis, B. Reinwald
DBPubs: Multidimensional Exploration of Database Publications
A. Baid, A. Balmin, H. Hwang, E. Nijkamp, J. Rao, B. Reinwald, A. Simitsis, Y.Sismanis, F. van Ham
Serving the Sky: Discovering and Selecting Semantic Web Services through Dynamic Skyline Queries
D. Skoutas, D. Sacharidis, A. Simitsis, T. Sellis
Synthesizing Structured Text from Logical Database Subsets
A. Simitsis, G. Koutrika, Y. Alexandrakis, Y. Ioannidis
Language Extensions for the Automation of Database Schema Evolution
G. Papastefanatos, P. Vassiliadis, A. Simitsis, K. Aggistalis, F. Pechlivani, Y. Vassiliou
Ontology-based Data Sharing in P2P Databases
D. Skoutas, V. Kantere, A. Simitsis, T. Sellis
Synthesizing Structured Text from Logical Database Subsets
A. Simitsis, G. Koutrika, Y. Alexandrakis, Y. Ioannidis
Discovery and Selection of Services on the Semantic Web
D. Skoutas, A. Simitsis, T. Sellis
Meshing Streaming Updates with Persistent Data in an Active Data Warehouse
N. Polyzotis, S. Skiadopoulos, P. Vassiliadis, A. Simitsis, N. Frantzell
A Method for the Mapping of Conceptual Designs to Logical Blueprints for ETL Processes
A. Simitsis, P. Vassiliadis
Précis: From Unstructured Keywords as Queries to Structured Databases as Answers
A. Simitsis, G. Koutrika, Y. Ioannidis
Deciding the Physical Implementation of ETL Workflows
V. Tziovara, P. Vassiliadis, A. Simitsis
ETL Workflows: From Formal Specification to Optimization
T. K. Sellis, A. Simitsis
Towards a Benchmark for ETL Workflows
P. Vassiliadis, A. Karagiannis, V. Tziovara, A. Simitsis
A Semantic Similarity Measure for Data Sharing in P2P Databases
D. Skoutas, V. Kantere, A. Simitsis, T. K. Sellis
What-if Analysis for Data Warehouse Evolution
G. Papastefanatos, P. Vassiliadis, A. Simitsis, Y. Vassiliou
A Ranking Mechanism for Semantic Web Service Discovery
D. Skoutas, A. Simitsis, T. K. Sellis
Supporting Streaming Updates in an Active Data Warehouse
N. Polyzotis, S. Skiadopoulos, P. Vassiliadis, A. Simitsis, N.-E. Frantzell
Flexible and Customizable NL Representation of Requirements for ETL processes
D. Skoutas, A. Simitsis
Supporting Streaming Updates in an Active Data Warehouse
N. Polyzotis, S. Skiadopoulos, P. Vassiliadis, A. Simitsis, N.-E. Frantzell
Generalized Précis Queries for Logical Database Subset Creation
A. Simitsis, G. Koutrika, Y. Ioannidis
Data Provenance in ETL Scenarios
T. K. Sellis, D. Skoutas, A. Simitsis, P. Vassiliadis
Ontology-based Conceptual Design of ETL Processes for both Structured and Semi-structured Data
D. Skoutas, A. Simitsis
Common Protocols and Vulnerabilities in Wireless Security
M. Belsis, A. Simitsis, S. Gritzalis
Designing ETL Processes Using Semantic Web Technologies
D. Skoutas, A. Simitsis
An Enhanced Search Interface for Information Discovery from Digital Libraries
G. Koutrika, A. Simitsis
Précis: A Novel Way to Query Answering Over Relational Data
G. Koutrika, A. Simitsis, Y. Ioannidis
Comprehensible Answers to Précis Queries
A. Simitsis, G. Koutrika
Précis: The Essence of a Query Answer
G. Koutrika, A. Simitsis, Y. Ioannidis
Pattern-Based Query Answering (post-proceedings, revised selected papers)
A. Simitsis, G. Koutrika
Pattern-Based Query Answering
A. Simitsis, G. Koutrika
Data Warehouse Refreshment
A. Simitsis, P. Vassiliadis, S. Skiadopoulos, T. K. Sellis
Workflow Based Security Incident Management
M. Belsis, A. Simitsis, S. Gritzalis
Mapping Conceptual to Logical Models for ETL Processes
A. Simitsis
Blueprints and Measures for ETL Workflows
P. Vassiliadis, A. Simitsis, M. Terrovitis, S. Skiadopoulos
Logical Optimization of ETL Workflows
A. Simitsis, P. Vassiliadis, T. K. Sellis
Graph-Based Modeling of ETL Activities with Multi-Level Transformations and Updates
A. Simitsis, P. Vassiliadis, M. Terrovitis, S. Skiadopoulos
Optimizing ETL Processes in Data Warehouses
A. Simitsis, P. Vassiliadis, T. K. Sellis
State-Space Optimization of ETL Workflows
A. Simitsis, P. Vassiliadis, T. K. Sellis
A Generic and Customizable Framework for the Design of ETL Scenarios
P. Vassiliadis, A. Simitsis, P. Georgantas, M. Terrovitis, S. Skiadopoulos
Extraction-Transformation-Loading Processes
A. Simitsis, P. Vassiliadis, T. K. Sellis
Data Warehouse Back-End Tools
A. Simitsis, D. Theodoratos
Materialized View Selection for Data Warehouse Design
D. Theodoratos, A. Simitsis
ETL Processes in Data Warehouse Enviroments
A. Simitsis
Modeling ETL Processes in Conceptual Level
A. Simitsis, P. Vassiliadis, T. K. Sellis
Modeling and Managing ETL Processes
A. Simitsis
Modeling of ETL Processes Using Graphs
A. Simitsis, P. Vassiliadis, S. Skiadopoulos, T. K. Sellis
A Methodology for the Conceptual Modeling of ETL Processes
A. Simitsis, P. Vassiliadis
A Framework for the Design of ETL Scenarios
P. Vassiliadis, A. Simitsis, P. Georgantas, M. Terrovitis
Conceptual Modeling for ETL Processes
P. Vassiliadis, A. Simitsis, S. Skiadopoulos
Received the 20-year Test of Time Award at DOLAP 2023
Modeling ETL Activities as Graphs
P. Vassiliadis, A. Simitsis, S. Skiadopoulos
On the Logical Modeling of ETL Processes
P. Vassiliadis, A. Simitsis, S. Skiadopoulos
A Randomized Approach for the Incremental Design of an Evolving Data Warehouse
D. Theodoratos, T. Dalamagas, A. Simitsis, M. Stavropoulos
Εργαστήρια Αυτόματου Ελέγχου (PLC)
Μ. Κοτζαμπάσης, Σ. Αντωνόπουλος, Α. Σιμιτσής
Εκδόσεις Ζαμπάρα, 2001.
(Book in Greek)
