December 19, 2008

My Bachelor's Thesis

I've finally got around to converting my Bachelor's Thesis to .PDF and uploading it. Unfortunately, it is entirely in Romanian. As I've previously stated its main focus is to describe a hybrid lightweight task scheduling algorithm based on metaheuristics like local search, tabu search and simulated annealing (an adaptation of the proposed algorithm for the university course timetabling problem is also described). My research for this paperwas coordinated by Prof. Dr. Dana Petcu. Here is the abstract:
This paper presents a general purpose hybrid timetabling algorithm based on metaheuristics and describes an implementation which is specifically aimed at solving the university course timetabling problem.
The first chapter presents some introductory information regarding the problem at hand, the current state of knowledge and briefly describes the timetabling method we propose. The second chapter describes with great detail the local search techniques we rely on and the base algorithm our method was inspired by: the CBRS algorithm. This part of the paper also contains the detailed description of our timetabling algorithm, justifications regarding the need of a multi-threading approach and of a thread trimming mechanism, together with a pseudo-code representation.
The third chapter describes the implementation of the algorithm in a Borland Delphi component and the last section of this paper presents some test results obtained by a timetabling application that incorporates our Delphi component and the final conclusions regarding the effectiveness of both the general timetabling method we have proposed and of its implementation.
You can download the paper by clicking here or from my Downloads box (Zavoianu Ciprian - Lucrare de diploma.pdf). If you have any questions regarding it, please don't hesitate to contact me.

December 17, 2008

Science ... by the bucket load

Yesterday I came across the SCImago Journal & Country Rank site. It contains a set of nice tools for ranking analyzing and comparing scientific indicators by country and/or by scientific field. The information is taken from the Scopus database. Here are some of the facts about Romania (and as a comparison ... let's say ... Poland). The range taken into consideration is 1996 - 2007.

Romania
Overall: Ranked 42 out of 233 with 33424 documents;
Computer Science: Ranked 40 out of 164 with 912 documents;
Engineering: Ranked 36 out of 200 with 4960 documents;
Mathematics: Ranked 30 out of 162 with 2854 documents;
Physics and Astronomy: Ranked 35 out of 175 with 4775 documents;
Economics, Econometrics and Finance: Ranked 70 out of 162 with 28 documents;

Poland
Overall: Ranked 19 out of 233 with 184120 documents;
Computer Science: Ranked 25 out of 164 with 3751 documents;
Engineering: Ranked 21 out of 200 with 15148 documents;
Mathematics: Ranked 13 out of 162 with 7216 documents;
Physics and Astronomy: Ranked 13 out of 175 with 24109 documents;
Economics, Econometrics and Finance: Ranked 37 out of 162 with 215 documents;