Publications by year

2017 Publications
Journals / Book chapters
  1. Valkanas G., Lappas T., Gunopulos D., "Mining Competitors from Large Unstructured Datasets", in IEEE Transactions on Knowledge and Data Engineering, 2017 [pdf] (to appear)

2016 Publications
Journals / Book chapters
  1. Lappas T., Sabnis G., Valkanas G., "The Impact of Fake Reviews on Online Visibility: A Vulnerability Assessment of the Hotel Industry.", in Information Systems Research, 2016 [pdf]
  2. Tiakas E., Valkanas G., Papadopoulos N. A., Manolopoulos Y., Gunopulos D. "Processing Top-k Dominating Queries in Metric Spaces", in ACM Transactions on Database Systems (TODS), 2016 [pdf], selected as the best paper of EDBT 2014

2015 Publications
Conferences/Workshops
  1. Saravanou A., Valkanas G., Gunopulos D., Andrienko G., "Twitter Floods when it Rains: A Case Study of the UK Floods in early 2014", SWDM'15 (WWW'15 Workshop) [pdf]

2014 Publications
Conferences/Workshops
  1. Arapakis I., Lalmas M., Valkanas G., "Understanding Within-Content Engagement through Pattern Analysis of Mouse Gestures", CIKM 2014 [pdf]
  2. Valkanas G., Saravanou A., Gunopulos D., "A Faceted Crawler for the Twitter Service", WISE 2014 [pdf] [poster]
  3. Galpin I., Stokes B. A., Valkanas G., Gray J.G. A., Paton W. N., Fernandes A.A. A., Sattler K.-U., Gunopulos D., "SensorBench: Benchmarking Approaches to Processing Wireless Sensor Network Data", SSDBM 2014 [pdf] [code]
  4. Tiakas E., Valkanas G., Papadopoulos N. A., Manolopoulos Y., Gunopulos D., "Metric-Based Top-k Dominating Queries", EDBT 2014 [pdf]
  5. Valkanas G., Papadopoulos N. A., Gunopulos D., "Skyline Ranking à la IR", ExploreDB 2014 [pdf] [slides]
  6. Valkanas G., Gunopulos D., "Predicting Download Directories for Web Resources", WIMS 2014 [pdf]
    Plugin will be available shortly.
  7. Valkanas G., Katakis I., Gunopulos D., Stefanidis A., "Mining Twitter Data with Resource Constraints", Web Intelligence 2014 [pdf]

2013 Publications
Conferences/Workshops
  1. Valkanas G., Gunopulos D., "How the Live Web Feels About Events", CIKM 2013 [pdf] [slides]
    For our emotions dataset, send me an email.
  2. Valkanas G., Galpin I., Gray J.G. A., Fernandes A.A. A., Paton W. N., Gunopulos D., "Declarative In-Network Sensor Data Analysis", LML 2013 [pdf]
  3. Valkanas G., Gunopulos D., Boutsis I., Kalogeraki V., "An Architecture for Detecting Events in Real-Time using Massive Heterogeneous Data Sources", BigMine 2013 [pdf]
  4. Papataxiarhis V., Tsetsos V., Valkanas G., Kassapoglou-Faist C., Piguet D., Hadjiefthymiades S., "A Reconfigurable Middleware for Context-Aware Applications in Autonomic Computing", PIMRC 2013 [pdf]
  5. Valkanas G., Gunopulos D., "A UI Prototype for Emotion-Based Event Detection in the Live Web", SS-HCI-KDD @ SouthCHI'13 [pdf]
  6. Valkanas G., Papadopoulos N. A., Gunopulos D., "SkyDiver: A Framework for Skyline Diversification", EDBT 2013 [pdf]
Journals / Book chapters
  1. Valkanas G., Gunopulos D., "Event Detection from Social Media Data", IEEE Data Eng. Bull. [pdf]

2012 Publications
Conferences/Workshops
  1. Lappas T., Valkanas G., Gunopulos D., "Efficient and Domain-Invariant Competitor Mining", KDD 2012 [pdf]
    For our datasets, send me an email.
  2. Valkanas G., Gunopulos D., "Location Extraction from Social Networks with Commodity Software and Online Data", SSTDM 2012 [pdf]
    For the datasets used, send me an email.
Journals / Book chapters
  1. Kolomvatsos K., Valkanas G., Hadjiefthymiades S., "Debugging Applications Created by a Domain Specific Language: The IPAC Case", in Elsevier Journal of Systems and Software (JSS), April 2012, [pdf]
  2. Kolomvatsos K., Valkanas G., Patelis P., Hadjiefthymiades S., "Creating, Debugging and Testing Mobile Applications with the IPAC Application Creation Environment", chapter in "Formal and Practical Aspects of Domain-Specific Languages: Recent Developments", ed. Dr M. Mernik, IGI Global, 2012. [book]

2011 Publications
Conferences/Workshops
  1. Valkanas G., Ntoulas A., Gunopulos D., "Rank-Aware Crawling of Hidden-Web Sites", in WebDB'11 (co-located with PODS/SIGMOD 2011). [pdf]
  2. Valkanas G., Gunopulos D., Galpin I., Gray J.G. A., Fernandes A.A. A., "Extending Query Languages for In-Network Query Processing", in MobiDE'11 (co-located with PODS/SIGMOD 2011). [pdf]
  3. Valkanas G., Kotsifakos A., Gunopulos D., Galpin I., Gray J.G. A., Fernandes A.A. A., Paton W. N. "Deploying In-Network Data Analysis Techniques in Sensor Networks", Demo at MDM'11 [pdf] [poster]

2010 Publications
Conferences/Workshops
  1. Valkanas G., Papadopoulos N. A. "Efficient and Adaptive Distributed Skyline Computation", in SSDBM 2010 [pdf] [poster]

2009 Publications
Conferences/Workshops
  1. Valkanas G., Natsiavas P., Bassiliades N. "A collision detection and resolution multi agent approach using utility functions", in BCI '09 [pdf]
Thesis
  1. MSc Dissertation Thesis (own): Parallel Computation of Skyline Queries [pdf] [code].
    Supervisor: Apostolos Papadopoulos. Source code available soon

2007 Publications
Conferences/Workshops
  1. Valkanas G., Tsetsos V., Hadjiefthymiades S. "The POLYSEMA MPEG-7 Video Annotator", Demo at SAMT, Genova, Italy, December 2007. [pdf] [code]
Thesis
  1. BSc Dissertation Thesis (own): Video Annotation according to the MPEG-7 standard using ontologies [pdf].
    Supervisor: Stathes Hadjiefthymiades and Vassileios Tsetsos.