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PhD Research Positions
Applications are invited, from suitably qualified candidates, to work in the
field of
Systems Theory, Control, Computational Intelligence, Circuits, Modeling and
Optimization, Applied Mathematics with emphasis in Partial Differential
Equations, Multidimensional Systems, . The post will demand some theoretical
work on the model development as well as numerical modeling for obtaining
solution of our research problems.
Applicants are expected to hold a good first degree in Engineering,
Mathematics or Physical Sciences. It would be beneficial if the applicant
has experience in numerical modelling.
Previous experience in programming is desirable. The successful candidates
will be registered for a PhD degree in the Technical University of Sofia
Applications including your CV, cover letter and contact details of three
referees should be sent, preferably by email, to:
Prof. Dr.-Ing. Valeri Mladenov Prof.
Dr.-Ing. Nikos E. Mastorakis
Technical University of
Sofia Technical University of Sofia
8, Kliment Ohridski St. 8,
Kliment Ohridski St.
Sofia-1000, BULGARIA
Sofia-1000, BULGARIA
tel./fax. +359 2 9652386
tel./fax. +359 2 9652386
valerim@tu-sofia.bg
mastor@wseas.org
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A WSEAS SENIOR MEMBER, WITH MANY PUBLICATIONS IN WSEAS CONFERENCES AND WSEAS
JOURNALS, A PIONEER OF FUZZY LOGIC, PROF. LADISLAV KOHOUT PASSED AWAY
on November 20, 2009 in Malta.
http://mybisc.blogspot.com/2009/12/i-have-just-learned-that-ladislav.html
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PROF. LADISLAV KOHOUT was Professor in the Department of
Computer Science Florida State University, Tallahassee, Florida. He used to
spend his summers in Malta, homeland of his wife. Prof. Ladislav Kohout had
published a great number of papers in WSEAS and had many interesting ideas.
See what BISC and NAFIPS say for him
http://mybisc.blogspot.com/2009/12/i-have-just-learned-that-ladislav.html
http://mybisc.blogspot.com
 Ladislav
Kohout (in the photo, WSEAS Congress, Malta 2005)
was one of the pioneers of interval-valued fuzzy techniques.
His idea of using intervals started with the observation that for each
statement A, one of the known ways to estimate its degree of truth d is to
ask several (n) people and take d = m/n, where m is the number of people who
believe that A is true. If we have two statements A and B, we can thus
estimate the degrees of truth d(A), d(B), and d(A & B) for A, for B, and for
A & B. In practice,
it is not feasible to ask the experts about the truth
values of all possible Boolean combinations of the original statements.
Thus, we must be able, e.g., given d(A) and d(B), to estimate d(A & B).
If we only know the degrees d(A) and d(B), then we cannot uniquely determine
p(A & B). For example, if d(A) < d(B) and all people who believe in A also
believe in B, then d(A & B) = d(A) = min(d(A), d(B)). On the other hand, if
people who believe in A tend not to believe in B,
we can have d(A & B) =
max(d(A)+d(B)-1, 0). In general, the degree d(A & B) can take any value from
the interval [max(d(A)+d(B)-1, 0), min(d(A),d(B))]. It is therefore
sometimes reasonable, instead of assigning a single value to d(A & B), to
conclude that this whole
interval represents our degree of believe in A &
B. This is important in critical applications when we want to make only
conclusions that follow from the original expert information -- Dr. Kohout
himself successfully applied this idea to medical expert systems. Of course,
when we switch from numbers to intervals, we increase the computational
complexity of the corresponding problem. However, in many cases, Dr. Kohout
was able to decrease this complexity by using
techniques that are well
known to simplify problems in physics (and in science and engineering in
general) -- the technique of symmetries. In the traditional logic, & and \/
are "symmetric" in the sense that due to de Morgan rules, negation
transforms & into \/ and vice versa: ~(~A &
~B) = A \/ B and ~(~A \/ ~B)
= A & B. In the interval-valued case, each logical operation leads, in
effect, to two function corresponding to the bottom and the top of the
corresponding interval. It turned out that the resulting larger class of
functions has its own symmetries, and these
symmetries help process these
interval-valued degrees.
Prof. Ladislav Kohout participated every year in the WSEAS
Conferences on Fuzzy Systems and in the WSEAS Conferences of Computational
Intelligencestarted from the conferences in Malta in 2003 as simple author.
Then, he was Invited Speaker in the 5th WSEAS Int. Conf. on APPLIED
MATHEMATICS (MATH 2004) with 2 papers and Chairman in Udine, Italy, March
25-27, 2004 (5th Int.Conf. on FUZZY SETS AND FUZZY SYSTEMS (FSFS '04)). In
2005, in Malta he was again Plenary Speaker, See him in the first photo of:
http://www.wseas.us/reports/2005malta/index.html
and was also
Plenary Speaker in FSFS in Croatia in 2006
http://www.worldses.org/conferences/2006/croatia/fs/kohout.htm
His
papers in WSEAS received many citations
http://portal.acm.org/citation.cfm?id=1365859
He wrote many papers
in WSEAS Journals for example:
WSEAS Trans. on Systems, January 2004
WSEAS Trans. on Systems, November 2005
He was also Chairman of the WSEAS
Conference: ISCGAV'05
See also
http://www.bio.net/bionet/mm/parasite/2004-January/004499.html
- Prof. Mastorakis, the former President of
the WSEAS, had been appointed Honorary Professor in the Budapest Tech.
, Hungary in Aug. 31, for his extraordinary and brilliant contribution
in Multidimensional Systems, Multidimensional Polynomials Stability of m-D
Systems, Neural Networks, Fuzzy Systems, Genetic Algorithms and Numerical
Methods in PDEs. See the video of this important Proclamation:
http://www.youtube.com/watch?v=MsuEGbbFRz8 See more details:
www.wseas.org/mastorakis.
An outstanding contribution: More Details:
http://outstanding.wseas.us
WSEAS would like to congratulate the authors:
Drigas, A. S., Vrettaros, J., & Kouremenos, D. (*)
for an excellent distinction by NCD of USA
NCD has promoted this paper to the US President.
(This is also a Special Distinction for the WSEAS Journals.)
The National Council on Disability of USA selected their paper(* -- See
below) published in the WSEAS Transactions on Information Science and
Applications in the list of the Best Papers and has already informed the
President of USA. See below the page from the NCD official site.
Their paper (published in The WSEAS Transactions) has been given to the US
President. We have some newer information about this special distinction and we
will mail to you soon.
We contacted several colleagues already, before sending this information to
you and many important academicians (mainly from top-ranking USA Universities,
See: www.wseas.org , March and April of 2008)
told us that they prefer to publish their breakthrough works in WSEAS
Transactions.
(*) Drigas, A. S., Vrettaros, J., & Kouremenos, D. (2004). E-learning
environment for deaf people in the e-commerce and new technologies sector. WSEAS
Transactions on Information Science and Applications 5 (1).
WSEAS congratulate the Authors for this special distinction as well as the
Editor-in-Chief and the members of the Editorial Board of this journal.
More Details:
www.ncd.gov/newsroom/publications/2007/NCDEmployment_20071001.htm
and:
http://outstanding.wseas.us
Do you want to publish your own conference
proceedings by WSEAS Press?
Programs of upcoming conferences
Grants available for the WSEAS members and friends (you
will need user name and password)
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