Searching for authors named "Vassilios Petridis" – sorted by Relevance.

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11 documents found, showing 1 through 10. Next 10 →

Solving University Timetabling Problems Using Advanced Genetic Algorithms
by Spyros Kazarlis, Vassilios Petridis, Pavlina Fragkou — 5TH INTERNATIONAL CONFERENCE ON TECHNOLOGY AND AUTOMATION, OCTOBER 15-16, 2005, THESSALONIKI, GREECE, PROCEEDINGS OF THE ICTA’05
… Timetabling problems together with scheduling ones constitute a class of difficult to solve combinatorial optimization problems that lack analytical solution methods. As such, these problems have attracted researchers from a number of disciplines, like Operations Research and Artificial Intelligenc…
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Fuzzy Lattice Neurocomputing (FLN) Models
by Vassilis G. Kaburlasos, Vassilios Petridis — 2000
…In this work it is shown how fuzzy lattice neurocomputing (FLN) emerges as a connectionist paradigm in the framework of fuzzy lattices (FL-framework) whose advantages include the capacity to deal rigorously with: disparate types of data such as numeric and linguistic data, intervals of values, "miss…
Cited by 8 (4 self) – Add To MetaCart

Learning and Decision-Making in the Framework of Fuzzy Lattices
by Vassilis G. Kaburlasos, Vassilios Petridis — 2000 — in New Learning Techniques in Computational Intelligence Paradigms
…A novel theoretical framework is delineated for supervised and unsupervised learning. It is called framework of fuzzy lattices, or FLframework for short, and it suggests mathematically sound tools for dealing separately and/or jointly with disparate types of data including vectors of numbers, fuzzy …
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Regression on heterogeneous fuzzy data
by Vassilis G. Kaburlasos, Vassilios Petridis — 1999 — Proceedings of the 7th European Congress on Intelligent Techniques and Soft Computing (EUFIT'99
…ABSTRACT: A novel formalism is presented, which enables the processing of heterogeneous data including numeric-, interval-valued-, or fuzzy- data. The data in question are represented herein as interval-supported fuzzy sets with suitable membership functions. The term Fuzzy Interval Number (FIN) den…
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An Intelligent Mechatronics Solution for Automated Tool Guidance in the Epidural Surgical Procedure
by Vassilios Petridis, Vassilis G. Kaburlasos — 2000 — in the Epidural Surgical Procedure. In Proc. 7th Conf. on Mechatronics and Machine Vision in Practice (M2VIP’00
…This work reports results regarding the recognition of soft tissues in the Epidural surgical procedure by a novel scheme implementable on a surgical mechatronics tool. The data employed are Raman spectra of soft tissues. A whole Raman spectrum is treated here as a single datum. Soft tissue recogniti…
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3D FACIAL EXPRESSION RECOGNITION USING SWARM INTELLIGENCE
by Iordanis Mpiperis, Sotiris Malassiotis, Vassilios Petridis, Michael G. Strintzis
…In this paper, we present a novel approach for 3D facial expression recognition which is inspired by the advances of ant colony and particle swarm optimization (ACO and PSO respectively) in the field of data mining. Anatomical correspondence between faces is first established using a generic 3D face…
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Estimation of the Stapes-Bone Thickness in Stapedotomy Surgical Procedure Using a Machine-Learning Technique
by Vassilis G. Kaburlasos, Vassilios Petridis, Peter Brett, Dave Baker — 1999 — IEEE Trans Inf Technol Biomed
…Stapedotomy is a surgical procedure aiming at the treatment of hearing impairment, where the latter is due to otosclerosis, by drilling a hole through the stapes bone in the inner ear in order to insert a prosthesis. Safety requires knowledge of the non-measurable stapes thickness. The technical goa…
Cited by 4 (3 self) – Add To MetaCart

Learning a linear association of drilling profiles in stapedotomy surgery
by Vassilis G. Kaburlasos, Vassilios Petridis, Peter Brett, Dave Baker — 1998 — Proc. Conference on Computer-Supported Cooperative
…The two-level fuzzy-lattice (2L-FL) learning scheme is introduced for application on an intelligent surgical (mechatronic) drill in the stapedotomy surgical procedure in the ear. The 2L-FL scheme learned from past cases to evaluate pointedly the thickness of a stapes bone using a force/torque pair o…
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Two Level Fuzzy Lattice (2L-FL) Supervised Clustering : A New Method for Soft Tissue Identification
by Vassilios Petridis, Vassilis G. Kaburlasos, Peter Brett, Tim Parker — 1996 — In Proceedings of the CESA'96 IMACS Multiconference
…Abstract: A new technique is presented towards the intelligent control of a surgical tool to be used for the epidural puncture. Specifically the problem of the accurate soft tissue identification from laser-based spectral data was dealt with successfully. The proposed new technique, namely two level…
Cited by 5 (5 self) – Add To MetaCart

Linear Text Segmentation using a Dynamic Programming Algorithm
by Athanasios Kehagias Dept, Athanasios Kehagias, Comp Sciences, Fragkou Pavlina, Vassilios Petridis — 2003 — In Proceedings of the EACL
…In this paper we introduce a dynamic programming algorithm to perform linear text segmentation by global minimization of a segmentation cost function which consists of: (a) within-segment word similarity and (b) prior information about segment length. The evaluation of the segmentation accura…
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