The International Workshop On Design, Optimization, Languages and Analytical Processing of Big Data reached now its 28th edition. The research topics included but were not limited to: • Design and Language - Data management fundamentals: architectures, design, ETL/ELT, reverse ETL, modeling, data integration, database design for big data, query processing, maintenance, evolution, security, personalization, and privacy in decision support systems. - Data Variety: unstructured data (e.g., text), semi-structured data (e.g., XML, JSON), multimedia, spatial, temporal, and spatio-temporal data, stream and sensor data, semantic web, data lakes, data spaces, data quality, graph data, multistore and polystore solutions, multi-model data warehouse - Explainable, trustworthy, and interpretable analytics: bias in big data and how to mitigate it; data quality and data cleaning; FAIRness (Findability, Accessibility, Interoperability and Reusability) in OLAP - Coping with Volume: physical organization, performance optimization and tuning, scalability, MapReduce and Spark for data analytics, performance optimization of ETL/ELT. - Coping with Velocity: Deployment on parallel machine, database clusters, cloud infrastructures and serverless architectures, active/real-time analytics, real-time queries.
In the review process, all submitted papers were assigned 3 to 4 reviewers. As a result of the process, 6 papers were accepted as full papers and 6 as short papers.
Moreover, DOLAP 2026 hosted one invited keynote by Prof. Rabl Tilmann on “A Look at the Ecological Impact of Big Data Systems”.
Further, this year, the DOLAP Program Chairs assigned the best paper award to Daniela Böhm, Georg Gottlob, Matthias Lanzinger, Davide Mario Longo, Cem Okulmus, Reinhard Pichler and Alexander Selzer for their paper “Selective Use of Yannakakis’ Algorithm for Consistent Performance Gains”.
The DOLAP 2026 Chairs would like to thank the Steering Committee and the Program Committee Members for their thorough and timely work.
March 2026 Steering Committee • Alberto Abelló, Universitat Politecnica de Catalunya, Spain • Ladjel Bellatreche, LIAS/ISAE-ENSMA, France • Alfredo Cuzzocrea, Universitá della Calabria, Italy • Carlos Garcia-Alvarado, Amazon, USA • Enrico Gallinucci, University of Bologna, Italy • Lukasz Golab, University of Waterloo, Canada • Matteo Golfarelli, University of Bologna, Italy • Katja Hose, Aalborg University, Denmark • Patrick Marcel, University of Orléans, France • Carlos Ordonez, University of Houston, USA • Torben Bach Pedersen, Aalborg University, Denmark • Stefano Rizzi, University of Bologna, Italy • Oscar Romero, Universitat Politecnica de Catalunya, Spain • Alkis Simitsis, Athena Research Center, Greece • Il-Yeol Song, Drexel University, USA • Kostas Stefanidis, Tampere University, Finland • Dimitri Theodoratos, New Jersey Institute of Technology, USA • Juan Carlos Trujillo, University of Alicante, Spain • Panos Vassiliadis, University of Ioannina, Greece • Robert Wrembel, Poznan University of Technology, Poland • Esteban Zimanyi, Universite Libre de Bruxelles, Belgium Program Committee • Kostas Stefanidis, Tampere University • Ladjel Bellatreche, ISAE-ENSMA • Laurent Bindschaedler, MPI-SWS • Maik Thiele, Hochschule für Technik und Wirtschaft Dresden • Marcin Gorawski, Silesian University of Technology • Matteo Francia, DISI - University of Bologna • Matteo Golfarelli, DISI - University of Bologna • Matteo Lissandrini, University of Verona • Nicolas Labroche, University of Tours • Olivier Teste, IRIT, University of Toulouse • Oscar Romero, Universitat Politècnica de Catalunya • Panos Vassiliadis, University of Ioannina • Patrick Marcel, University of Orléans • Pedro Furtado, Universidade de Coimbra • Rafael Berlanga Llavori, University Jaume I • Robert Wrembel, Poznan University of Technology • Rokia Missaoui, UQO • Sergi Nadal, Universitat Politècnica de Catalunya • Wolfgang Lehner, TU Dresden • Xiufeng Liu, Technical University of Denmark