C. Siriopoulos, S. J. Perantonis, S. J. Varoufakis, G. Karakoulas and G. Doukidis, Models for position entry in the stock market using artificial intelligence techniques, In International Symposium on Economic Modelling (Piraeus, Greece), 2-5 june 1993.
Georgios Paliouras, Christos Papatheodorou, Vangelis Karkaletsis, Costantine D. Spyropoulos, Panayiotis Tzitziras, From web usage statistics to web usage analysis, In IEEE SMC 1999 International Conference on Systems, Man, and Cybernetics, Tokyo, Japan, October 12-15, (Pages: 159–164), 1999.[url]
Georgios Paliouras, Christos Papatheodorou, Vangelis Karkaletsis, Panayiotis Tzitziras, Constantine D. Spyropoulos, Learning communities of the acai99 web site visitors, In Workshop on Machine learning in user modeling at ACAI 1999, (Pages: 65–73), 1999.
Marinagi, CC, Spyropoulos, CD, Kokkotos, S and Halatsis, C, The Role of Planning in Scheduling Patient Tests in Hospital Laboratories, Chapter in Advances in Intelligent Systems, Springer, Dordrecht, (Pages: 475–486), 1999.
Vangelis Karkaletsis, Constantine D. Spyropoulos, George Petasis, Named Entity Recognition from Greek texts: the GIE Project, Chapter in Advances in Intelligent Systems: Concepts, Tools and Applications, International Series on Microprocessor-Based and Intelligent Systems Engineering, volume 21, Springer, Dordrecht, (Pages: 131–142), 1999.[url]
Pallis, E, Pantos, G, Kourtis, A and Alexandridis, AA, QoS in the provision of MPEG-2 programmes in a wireless indoor environment, In International Workshop on Mobile Communications, (Pages: 105–111), 1999.
Vangelis Karkaletsis, Georgios Paliouras, Georgios Petasis, Natasa Manousopoulou, Constantine D. Spyropoulos, Named-Entity Recognition from Greek and English Texts, In Journal of Intelligent and Robotic Systems, Springer, volume 26, (Pages: 123–135), 1999.[url][doi]