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Algebra and Logic Seminar

Institute of Mathematics and Informatics, BAS Akad.G.Bonchev St, bl. 8, 1113, Sofia

The next meeting of the Algebra and Logic Seminar will take place on April 24, 2026 (Friday) at 1:00 pm (UTC+3) in Room 578 and online via Zoom. A talk on: Sets preserved by a large subgroup of the special linear group will be delivered by Kaloyan Slavov (Medical University, Sofia). Abstract. The classical Kakeya problem in Euclidean space asks how “small” a set can be if it contains a unit line segment in every direction. More generally, packing sets contain all images of a given set under a collection of transformations. Finite field analogues offer a combinatorial and algebraic perspective and motivate our work. We study sets E in the affine plane over a finite field that are invariant under a large subgroup R [...]

Preliminary Defense of Ventsislav Polimenov, SofTIS Department

Institute of Mathematics and Informatics, BAS Akad.G.Bonchev St, bl. 8, 1113, Sofia

On April 24, 2026 (Friday), at 2:00 pm, in the Conference Room of IMI-BAS (Room 256) and via ZOOM, a preliminary defense will be held of the dissertation on Adaptive neural network for processing satellite data with different spatial and spectral characteristics by Ventsislav Polimenov, doctoral student at the Software Technologies and Information Systems section, with scientific supervisor Assoc. Prof. Krasimira Ivanova, for obtaining the educational and qualification degree Doctor of Philosophy in the higher education area 4. Natural Sciences, Mathematics and Informatics, professional field 4.6 Informatics and Computer Science. * The dissertation materials are available in the IMI library. * Zoom link: https://us02web.zoom.us/j/88606059983?pwd=rsE8lZaDFuRmGpaaIuUIPRErEV6dJM.1

Seminar in Operations Research, Probability and Statistics

Institute of Mathematics and Informatics, BAS Akad.G.Bonchev St, bl. 8, 1113, Sofia

On April 28, 2026 (Tuesday) at 2:00 pm in room 503 of IMI-BAS Mihail Mukov (Intellics Engineering) will give a talk at the Operations Research, Probability and Statistics Seminar on: Modeling Lifting Systems in Waste Collection . Abstract: This presentation considers the problem of estimating the mass of waste emptied from individual containers by a garbage truck equipped with standard lifting forks for both large 1100-liter containers and smaller waste bins. The main objective is to develop a low-cost measurement system that can be applied to a wide range of truck configurations with only minimal hardware modification. The system combines an oil pressure sensor installed in the hydraulic circuit and a standard smartphone inertial measurement unit fixed on the lifting arm. The pressure sensor [...]

National Seminar on Probability and Statistics

Institute of Mathematics and Informatics, BAS Akad.G.Bonchev St, bl. 8, 1113, Sofia

The next meeting of the National Seminar on Probability and Statistics will be held on April 29, 2026, at 2:00 p.m. in Room 503 of the Institute of Mathematics and Informatics. A talk on: Progressively Type-II censored competing risks data from Odd Lindley Half-Logistic distribution will be delivered by Stevo Gjorgiev (Ss. Cyril and Methodius University in Skopje). Abstract: A competing risks model based on the Odd Lindley Half Logistic distribution is considered under progressive Type II censoring. Maximum likelihood estimates for the distribution parameters are obtained, and the existence and uniqueness of these estimates are proven. The EM algorithm is applied to solve the log- likelihood equations and construct the s-th EM sequence. Additionally, using the missing information principle, the observed and expected [...]

Mathematical Foundations of Informatics Seminar

Institute of Mathematics and Informatics, BAS Akad.G.Bonchev St, bl. 8, 1113, Sofia

The next meeting of the Mathematical Foundations of Informatics seminar will be held on May 12, 2026, at 1 p.m. in Room 503 of the Institute of Mathematics and Informatics. A talk on: Linear codes and Steiner triple systems will be delivered by Vladimir D. Tonchev Michigan Technological University, Houghton, USA. The abstract can be found here.

Digital Culture Seminar

Institute of Mathematics and Informatics, BAS Akad.G.Bonchev St, bl. 8, 1113, Sofia

The next meeting of the Digital Culture Seminar will be held on May 19, 2026 (Tuesday) at 10:00 a.m. in Room 256 of IMI - BAS. A talk on: Competing Conceptions of AGI will be delivered by Pei Wang (Temple University, USA), Edior-in-Chief of the Journal of Artificial General Intelligence. Abstract: While the term "Artificial General Intelligence" (AGI) has been used to identify a research field for 20 years, a consensus on its goal remains controversial. These divergent interpretations are not merely philosophical, as they lead to fundamentally different research agendas and engineering methodologies. In this talk, the NARS (Non-Axiomatic Reasoning System) project is introduced, with an outline of its assumptions, representations, inference rules, and working process. NARS offers a fundamentally different vision of [...]

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