Querying XML Data with SPARQL. - Nikos Bikakis; Nektarios Gioldasis; Chrisa Tsinaraki; Stavros Christodoulakis (DEXA, 2009)

Semantic Based Access over XML Data. - Nikos Bikakis; Nektarios Gioldasis; Chrisa Tsinaraki; Stavros Christodoulakis (WSKS (1), 2009)

Towards a Mediator Based on OWL and SPARQL. - Konstantinos Makris; Nikos Bikakis; Nektarios Gioldasis; Chrisa Tsinaraki; Stavros Christodoulakis (WSKS (1), 2009)

GoNTogle: A Tool for Semantic Annotation and Search. - Giorgos Giannopoulos; Nikos Bikakis; Theodore Dalamagas 001; Timos K. Sellis (ESWC (2), 2010)

Integrating Keywords and Semantics on Document Annotation and Search. - Nikos Bikakis; Giorgos Giannopoulos; Theodore Dalamagas 001; Timos K. Sellis (OTM Conferences (2), 2010)

Ontology Mapping and SPARQL Rewriting for Querying Federated RDF Data Sources - (Short Paper). - Konstantinos Makris; Nektarios Gioldasis; Nikos Bikakis; Stavros Christodoulakis (OTM Conferences (2), 2010)

SPARQL2XQuery 2.0: Supporting Semantic-based queries over XML data. - Ioannis Stavrakantonakis; Chrisa Tsinaraki; Nikos Bikakis; Nektarios Gioldasis; Stavros Christodoulakis (SMAP, 2010)

SPARQL-RW: transparent query access over mapped RDF data sources. - Konstantinos Makris; Nikos Bikakis; Nektarios Gioldasis; Stavros Christodoulakis (EDBT, 2012)

Publishing life science data as linked open data: the case study of miRBase. - Theodore Dalamagas 001; Nikos Bikakis; George Papastefanatos; Yannis Stavrakas; Artemis G. Hatzigeorgiou (WOD, 2012)

RDivF: Diversifying Keyword Search on RDF Graphs. - Nikos Bikakis; Giorgos Giannopoulos; John Liagouris; Dimitrios Skoutas 001; Theodore Dalamagas 001; Timos K. Sellis (TPDL, 2013)

The SPARQL2XQuery Interoperability Framework. - Nikos Bikakis; Chrisa Tsinaraki; Ioannis Stavrakantonakis; Nektarios Gioldasis; Stavros Christodoulakis (CoRR, 2013)

The XML and Semantic Web Worlds: Technologies, Interoperability and Integration: A Survey of the State of the Art. - Nikos Bikakis; Chrisa Tsinaraki; Nektarios Gioldasis; Ioannis Stavrakantonakis; Stavros Christodoulakis (Semantic Hyper/Multimedia Adaptation, 2013)

Reconciling Multiple Categorical Preferences with Double Pareto-Based Aggregation. - Nikos Bikakis; Karim Benouaret; Dimitris Sacharidis (DASFAA (1), 2014)

A Study on External Memory Scan-Based Skyline Algorithms. - Nikos Bikakis; Dimitris Sacharidis; Timos K. Sellis (DEXA (1), 2014)

rdf: SynopsViz - A Framework for Hierarchical Linked Data Visual Exploration and Analysis. - Nikos Bikakis; Melina Skourla; George Papastefanatos (ESWC (Satellite Events), 2014)

Regionally influential users in location-aware social networks. - Panagiotis Bouros; Dimitris Sacharidis; Nikos Bikakis (SIGSPATIAL/GIS, 2014)

Supporting SPARQL Update Queries in RDF-XML Integration. - Nikos Bikakis; Chrisa Tsinaraki; Ioannis Stavrakantonakis; Stavros Christodoulakis (ISWC (Posters & Demos), 2014)

Towards Scalable Visual Exploration of Very Large RDF Graphs. - Nikos Bikakis; John Liagouris; Maria Kromida; George Papastefanatos; Timos K. Sellis (ESWC (Satellite Events), 2015)

A Hierarchical Framework for Efficient Multilevel Visual Exploration and Analysis. - Nikos Bikakis; George Papastefanatos; Melina Skourla; Timos K. Sellis (CoRR, 2015)

The SPARQL2XQuery interoperability framework - Utilizing Schema Mapping, Schema Transformation and Query Translation to Integrate XML and the Semantic Web. - Nikos Bikakis; Chrisa Tsinaraki; Ioannis Stavrakantonakis; Nektarios Gioldasis; Stavros Christodoulakis (World Wide Web, 2015)

Exploration and Visualization in the Web of Big Linked Data: A Survey of the State of the Art. - Nikos Bikakis; Timos K. Sellis (EDBT/ICDT Workshops, 2016)

graphVizdb: A scalable platform for interactive large graph visualization. - Nikos Bikakis; John Liagouris; Maria Krommyda; George Papastefanatos; Timos K. Sellis (ICDE, 2016)

The XML and Semantic Web Worlds: Technologies, Interoperability and Integration. A Survey of the State of the Art. - Nikos Bikakis; Chrisa Tsinaraki; Nektarios Gioldasis; Ioannis Stavrakantonakis; Stavros Christodoulakis (CoRR, 2016)

Finding desirable objects under group categorical preferences. - Nikos Bikakis; Karim Benouaret; Dimitris Sacharidis (Knowl. Inf. Syst., 2016)

Εξατομικευμένη, σημασιολογική και διερευνητική ανάλυση δεδομένων - Nikos Bikakis (2016)

A hierarchical aggregation framework for efficient multilevel visual exploration and analysis. - Nikos Bikakis; George Papastefanatos; Melina Skourla; Timos Sellis (Semantic Web, 2017)

RawVis: Visual Exploration over Raw Data. - Nikos Bikakis; Stavros Maroulis; George Papastefanatos; Panos Vassiliadis (ADBIS, 2018)

Social Event Scheduling. - Nikos Bikakis; Vana Kalogeraki; Dimitrios Gunopulos (ICDE, 2018)

Big Data Visualization Tools. - Nikos Bikakis (CoRR, 2018)

Attendance Maximization for Successful Social Event Planning. - Nikos Bikakis; Vana Kalogeraki; Dimitrios Gunopulos (EDBT, 2019)

Big Data Exploration, Visualization and Analytics. - Nikos Bikakis; George Papastefanatos; Olga Papaemmanouil (Big Data Res., 2019)

Big Data Visualization Tools. - Nikos Bikakis (Encyclopedia of Big Data Technologies, 2019)

Big Data Visualization and Analytics: Future Research Challenges and Emerging Applications. - Gennady L. Andrienko; Natalia V. Andrienko; Steven Mark Drucker; Jean-Daniel Fekete; Danyel Fisher; Stratos Idreos; Tim Kraska; Guoliang Li 001; Kwan-Liu Ma; Jock D. Mackinlay; Antti Oulasvirta; Tobias Schreck; et al. (EDBT/ICDT Workshops, 2020)

A Comparative Study of State-of-The-Art Linked Data Visualization Tools. - Federico Desimoni; Nikos Bikakis; Laura Po; George Papastefanatos (VOILA@ISWC, 2020)

Linked Data Visualization: Techniques, Tools, and Big Data - Laura Po; Nikos Bikakis; Federico Desimoni; George Papastefanatos (Linked Data Visualization, 2020)

Adaptive Indexing for In-situ Visual Exploration and Analytics. - Stavros Maroulis; Nikos Bikakis; George Papastefanatos; Panos Vassiliadis; Yannis Vassiliou (DOLAP, 2021)

RawVis: A System for Efficient In-situ Visual Analytics. - Stavros Maroulis; Nikos Bikakis; George Papastefanatos; Panos Vassiliadis; Yannis Vassiliou (SIGMOD Conference, 2021)

In-situ visual exploration over big raw data. - Nikos Bikakis; Stavros Maroulis; George Papastefanatos; Panos Vassiliadis (Inf. Syst., 2021)

VisualFacts: A Platform for In-Situ Visual Exploration and Real-Time Entity Resolution. - George Papastefanatos; Giorgos Alexiou; Nikos Bikakis; Stavros Maroulis; Vassilis Stamatopoulos (EDBT/ICDT Workshops, 2022)

Placing multi-modal, and multi-lingual Data in the Humanities Domain on the Map: the Mythotopia Geo-tagged Corpus. - Voula Giouli; Anna Vacalopoulou; Nikolaos Sidiropoulos; Christina Flouda; Athanasios Doupas; Giorgos Giannopoulos; Nikos Bikakis; Vassilis Kaffes; Gregory Stainhaouer (LREC, 2022)

Special Issue on Machine Learning Approaches in Big Data Visualization. - Nikos Bikakis; Panos K. Chrysanthis; George Papastefanatos; Tobias Schreck (IEEE Computer Graphics and Applications, 2022)

Exposing Geospatial Cultural Heritage Content in Map-based Applications. - Nikos Bikakis; Giorgos Giannopoulos; Nikolaos Sidiropoulos; Christina Flouda; Athanasios Doupas; Voula Giouli; Panagiotis Karioris; Paraskevi Botini; Anna Vacalopoulou; Gregory Stainhaouer (EDBT/ICDT Workshops, 2023)

Resource-aware adaptive indexing for in situ visual exploration and analytics. - Stavros Maroulis; Nikos Bikakis; George Papastefanatos; Panos Vassiliadis; Yannis Vassiliou (VLDB J., 2023)

Partial Adaptive Indexing for Approximate Query Answering. - Stavros Maroulis; Nikos Bikakis; Vasileios Stamatopoulos; George Papastefanatos (VLDB Workshops, 2024)

Interactive big data visualization and analytics. - David Auber; Nikos Bikakis; Panos K. Chrysanthis; George Papastefanatos; Mohamed A. Sharaf (Big Data Res., 2024)

Partial Adaptive Indexing for Approximate Query Answering. - Stavros Maroulis; Nikos Bikakis; Vassilis Stamatopoulos; George Papastefanatos (CoRR, 2024)

Visualizing, Exploring and Analyzing Big Data: A 6-Year Story. - Nikos Bikakis; George Papastefanatos; Panos K. Chrysanthis; Olga Papemmanuil; David Auber; Steffen Frey; Issei Fujishiro; Hanna Hauptmann; Shixia Liu; Kwan-Liu Ma; Tobias Schreck; Michael Sedlmair; et al. (SIGMOD Rec., 2024)

Counterfactual Explanations for Group Recommendations. - Maria Stratigi; Nikos Bikakis; Kostas Stefanidis (DOLAP, 2025)

Adaptive Indexing for Approximate Query Processing in Exploratory Data Analysis. - Stavros Maroulis; Nikos Bikakis; Vassilis Stamatopoulos; George Papastefanatos (CoRR, 2025)

Visual Analytics Challenges and Trends in the Age of AI: The BigVis Community Perspective. - Nikos Bikakis; Panos K. Chrysanthis; Guoliang Li 001; George Papastefanatos; Lingyun Yu 001 (SIGMOD Rec., 2025)