User Interface Design for PDAs: Lessons and Experience with the WARD-IN-HAND Prototype. - Panagiotis Karampelas; Demosthenes Akoumianakis; Constantine Stephanidis (User Interfaces for All, 2002)

Usability Inspection of the WardInHand Prototype. - Panagiotis Karampelas; Demosthenes Akoumianakis; Constantine Stephanidis (Universal Access in Health Telematics, 2005)

A New Algorithm for On-Line Multivariate ARMA Identification Using Multimodel Partitioning Theory. - Stylianos Sp. Pappas; Nicholas Harkiolakis; Panagiotis Karampelas; Lambros Ekonomou; Sokratis K. Katsikas (Panhellenic Conference on Informatics, 2008)

Modeling of the grounding resistance variation using ARMA models. - Stylianos Sp. Pappas; Lambros Ekonomou; Panagiotis Karampelas; Sokratis K. Katsikas; Panos Liatsis (Simul. Model. Pract. Theory, 2008)

Designing Universally Accessible Networking Services for a Mobile Personal Assistant. - Ioannis Basdekis; Panagiotis Karampelas; Voula Doulgeraki; Constantine Stephanidis (HCI (6), 2009)

Web User Interface Design Strategy: Designing for Device Independence. - Panagiotis Karampelas; Ioannis Basdekis; Constantine Stephanidis (HCI (5), 2009)

Mapping rules for converting from ODL to XML schemas. - Tamer N. Jarada; Kelvin Chung; Armen Shimoon; Panagiotis Karampelas; Reda Alhajj; Jon G. Rokne (iiWAS, 2010)

Heuristic based approach to clustering and its time critical applications. - Alan Chia-Lung Chen; Shang Gao 005; Reda Alhajj; Panagiotis Karampelas (IRI, 2010)

Employing Social Network Construction and Analysis in Web Structure Optimization. - Mohamad Nagi; Abdelghani Guerbas; Keivan Kianmehr; Panagiotis Karampelas; Mick J. Ridley; Reda Alhajj; Jon G. Rokne (From Sociology to Computing in Social Networks, 2010)

SOA Security Aspects in Web-based Architectural Design. - Asadullah Shaikh; Shccraz Ali; Nasrullah Memon; Panagiotis Karampelas (From Sociology to Computing in Social Networks, 2010)

CCM: A Text Classification Model by Clustering. - Sarwat Nizamani; Nasrullah Memon; Uffe Kock Wiil; Panagiotis Karampelas (ASONAM, 2011)

Applications of Social Network Construction and Analysis in the Medical Referral Process. - Wadhah Almansoori; Omar Zarour; Tamer N. Jarada; Panagiotis Karampelas; Jon G. Rokne; Reda Alhajj (DASC, 2011)

A Hybrid Framework for Building a Web-Page Recommender System. - Vasileios Anastopoulos; Panagiotis Karampelas; Panagiotis Kalagiakos; Reda Alhajj (EISIC, 2011)

Harvesting Information from Heterogeneous Sources. - Pir Abdul Rasool Qureshi; Nasrullah Memon; Uffe Kock Wiil; Panagiotis Karampelas; Jose Ignacio Nieto Sancheze (EISIC, 2011)

Simple and effective behavior tracking by post processing of association rules into segments. - Alan Chia-Lung Chen; Kostas F. Xylogiannopoulos; Tamer N. Jarada; Omar Zarour; Panagiotis Karampelas; Jon G. Rokne; Reda Alhajj (iiWAS, 2011)

Association rules mining based approach for Web usage mining. - Mohamad Nagi; Abdallah M. ElSheikh; Iyad Suleiman; Peter Peng; Mohammad Rifaie; Keivan Kianmehr; Panagiotis Karampelas; Mick J. Ridley; Jon G. Rokne; Reda Alhajj (IRI, 2011)

heteroHarvest: Harvesting information from heterogeneous sources. - Pir Abdul Rasool Qureshi; Nasrullah Memon; Uffe Kock Wiil; Panagiotis Karampelas; Jose Ignacio Nieto Sancheze (ISI, 2011)

LPAT: An interactive simulation tool for assessing the lightning performance of Hellenic high voltage transmission lines. - Panagiotis Karampelas; Lambros Ekonomou; S. Panetsos; George E. Chatzarakis (Appl. Soft Comput., 2011)

Effectiveness of Heuristic Based Approach on the Performance of Indexing and Clustering of High Dimensional Data. - Alan Chia-Lung Chen; Shang Gao 005; Tamer N. Jarada; Ming Zhang; Christos Pavlatos; Panagiotis Karampelas; Reda Alhajj (J. Inf. Knowl. Manag., 2011)

Finding Hidden Links in Terrorist Networks by Checking Indirect Links of Different Sub-Networks. - Alan Chia-Lung Chen; Shang Gao 005; Panagiotis Karampelas; Reda Alhajj; Jon G. Rokne (Counterterrorism and Open Source Intelligence, 2011)

Minimization of Suffix Array's Storage Capacity for Periodicity Detection in Time Series. - Kostas F. Xylogiannopoulos; Panagiotis Karampelas; Reda Alhajj (ICTAI, 2012)

Periodicity data mining in time series using Suffix Arrays. - Kostas F. Xylogiannopoulos; Panagiotis Karampelas; Reda Alhajj (IEEE Conf. of Intelligent Systems, 2012)

The reduction of the digital divide by improving the appropriateness of the web content. - Vasileios Yfantis; Panagiotis Kalagiakos; Chrysanthi Kouloumperi; Panagiotis Karampelas (ITHET, 2012)

Finding Hidden Nodes by Checking for Missing Nodes against Past Social Networks. - Alan Chia-Lung Chen; Mohamad Elzohbi; Ahmad Elhajj; Kostas F. Xylogiannopoulos; Panagiotis Karampelas; Mick J. Ridley; Reda Alhajj (NBiS, 2012)

Towards an intelligent system for cognitive behavioral treatment. - Panagiotis Karampelas; Ioanna Laniti; Despina Konstas; Panagiotis Kalagiakos (SoSE, 2012)

Combining information extraction and text mining for cancer biomarker detection. - Khaled Dawoud; Shang Gao 005; Ala Qabaja; Panagiotis Karampelas; Reda Alhajj (ASONAM, 2013)

Modeling Suspicious Email Detection using Enhanced Feature Selection. - Sarwat Nizamani; Nasrullah Memon; Uffe Kock Wiil; Panagiotis Karampelas (CoRR, 2013)

Techniques and Tools for Designing an Online Social Network Platform - Panagiotis Karampelas (Springer, 2013)

Developing a Hybrid Framework for a Web-Page Recommender System. - Vasileios Anastopoulos; Panagiotis Karampelas; Reda Alhajj (Mining Social Networks and Security Informatics, 2013)

Integrating Online Social Network Analysis in Personalized Web Search. - M. Omair Shafiq; Tamer N. Jarada; Panagiotis Karampelas; Reda Alhajj; Jon G. Rokne (The Influence of Technology on Social Network Analysis and Mining, 2013)

Fast Frequent Pattern Detection Using Prime Numbers. - Konstantinos F. Xylogiannopoulos; Omar Addam; Panagiotis Karampelas; Reda Alhajj (IDEAL, 2014)

Early DDoS Detection Based on Data Mining Techniques. - Konstantinos F. Xylogiannopoulos; Panagiotis Karampelas; Reda Alhajj (WISTP, 2014)

Analyzing very large time series using suffix arrays. - Konstantinos F. Xylogiannopoulos; Panagiotis Karampelas; Reda Alhajj (Appl. Intell., 2014)

Experimental Analysis on the Normality of π, e, φ, sqrt(2) Using Advanced Data-Mining Techniques. - Konstantinos F. Xylogiannopoulos; Panagiotis Karampelas; Reda Alhajj (Exp. Math., 2014)

Visualization of health indicators: utilizing data mining techniques and statistical analysis for effective comparison of user profiles. - Jessica Szeto; Anthony Lycett; Xuan Yi; Salim Afra; Abdullah Sarhan; Konstantinos F. Xylogiannopoulos; Panagiotis Karampelas; Reda Alhajj (Netw. Model. Anal. Health Informatics Bioinform., 2014)

Visual Methods and Tools for Social Network Analysis. - Panagiotis Karampelas (Encyclopedia of Social Network Analysis and Mining, 2014)

Tactics, weapons, targets and rationale behind the actions of the mostly operational terrorist groups across Europe. - Ioanna K. Lekea; Panagiotis Karampelas; Konstantinos F. Xylogiannopoulos; Reda Alhajj (ASONAM, 2015)

Sequential All Frequent Itemsets Detection: A Method to Detect All Frequent Sequential Itemsets Using LERP-Reduced Suffix Array Data Structure and ARPaD Algorithm. - Konstantinos F. Xylogiannopoulos; Panagiotis Karampelas; Reda Alhajj (ASONAM, 2015)

Discretization Method for the Detection of Local Extrema and Trends in Non-discrete Time Series. - Konstantinos F. Xylogiannopoulos; Panagiotis Karampelas; Reda Alhajj (ICEIS (1), 2015)

SIREN - A Network Infrastructure for Emergencies. - Ioannis G. Askoxylakis; Paschalis Papagrigoriou; Diomedes D. Kastanis; Panagiotis Karampelas; George Spanoudakis (ERCIM News, 2015)

Profiling individuals based on email analysis and ego networks: A visualization technique. - Antreas Xenaros; Panagiotis Karampelas; Ioanna K. Lekea (ASONAM, 2016)

Frequent and non-frequent pattern detection in big data streams: An experimental simulation in 1 trillion data points. - Konstantinos F. Xylogiannopoulos; Reda Alhajj; Panagiotis Karampelas (ASONAM, 2016)

Repeated patterns detection in big data using classification and parallelism on LERP Reduced Suffix Arrays. - Konstantinos F. Xylogiannopoulos; Panagiotis Karampelas; Reda Alhajj (Appl. Intell., 2016)

Learn by playing: A serious war game simulation for teaching military ethics. - Savvas Veziridis; Panagiotis Karampelas; Ioanna K. Lekea (EDUCON, 2017)

Are We Really That Close Together? Tracing and Discussing Similarities and Differences between Greek Terrorist Groups Using Cluster Analysis. - Ioanna K. Lekea; Panagiotis Karampelas (EISIC, 2017)

Text Mining in Unclean, Noisy or Scrambled Datasets for Digital Forensics Analytics. - Konstantinos F. Xylogiannopoulos; Panagiotis Karampelas; Reda Alhajj (EISIC, 2017)

Advanced Network Data Analytics for Large-Scale DDoS Attack Detection. - Konstantinos F. Xylogiannopoulos; Panagiotis Karampelas; Reda Alhajj (Int. J. Cyber Warf. Terror., 2017)

Detecting Hate Speech Within the Terrorist Argument: A Greek Case. - Ioanna K. Lekea; Panagiotis Karampelas (ASONAM, 2018)

Clickstream Analytics: An Experimental Analysis of the Amazon Users' Simulated Monthly Traffic. - Konstantinos F. Xylogiannopoulos; Panagiotis Karampelas; Reda Alhajj (ASONAM, 2018)

Text Mining for Plagiarism Detection: Multivariate Pattern Detection for Recognition of Text Similarities. - Konstantinos F. Xylogiannopoulos; Panagiotis Karampelas; Reda Alhajj (ASONAM, 2018)

Visual Methods and Tools for Social Network Analysis. - Panagiotis Karampelas (Encyclopedia of Social Network Analysis and Mining. 2nd Ed., 2018)

Dynamic Pattern Detection for Big Data Stream Analytics. - Konstantinos F. Xylogiannopoulos; Panagiotis Karampelas; Reda Alhajj (Social Network Based Big Data Analysis and Applications, 2018)

The role of social media surveillance in search and rescue missions. - Dimitrios Lappas; Panagiotis Karampelas; George Fessakis (ASONAM, 2019)

Multivariate motif detection in local weather big data. - Konstantinos F. Xylogiannopoulos; Panagiotis Karampelas; Reda Alhajj (ASONAM, 2019)

Text mining for malware classification using multivariate all repeated patterns detection. - Konstantinos F. Xylogiannopoulos; Panagiotis Karampelas; Reda Alhajj (ASONAM, 2019)

Identifying Social Networks of Programmers using Text Mining for Code Similarity Detection. - Konstantinos F. Xylogiannopoulos; Panagiotis Karampelas (ASONAM, 2020)

Visualization of Repeated Patterns in Multivariate Discrete Sequences. - Konstantinos F. Xylogiannopoulos; Panagiotis Karampelas (ASONAM, 2020)

A password creation and validation system for social media platforms based on big data analytics. - Konstantinos F. Xylogiannopoulos; Panagiotis Karampelas; Reda Alhajj (J. Ambient Intell. Humaniz. Comput., 2020)

Recognizing the Threats of Drone Surveillance. A Case Study. - Dimitrios Lappas; George Fessakis; Panagiotis Karampelas (IVMSP, 2022)

A novel malicious remote administration tool using stealth and self-defense techniques. - Ioannis Kazoleas; Panagiotis Karampelas (Int. J. Inf. Sec., 2022)

ChatGPT paraphrased product reviews can confuse consumers and undermine their trust in genuine reviews. Can you tell the difference? - Konstantinos F. Xylogiannopoulos; Petros Xanthopoulos; Panagiotis Karampelas; Georgios A. Bakamitsos (Inf. Process. Manag., 2024)

Is AI-assisted paraphrase the new tool for fake review creation? Challenges and remedies. - Konstantinos F. Xylogiannopoulos; Petros Xanthopoulos; Panagiotis Karampelas; Georgios A. Bakamitsos (Knowl. Based Syst., 2025)

The power of text similarity in identifying AI-LLM paraphrased documents: The case of BBC news articles and ChatGPT. - Konstantinos F. Xylogiannopoulos; Petros Xanthopoulos; Panagiotis Karampelas; Georgios A. Bakamitsos (CoRR, 2025)