A meeting of the Seminar on Mathematical Foundations of Informatics will be held in Veliko Tarnovo on May 16, 2024, at 4:15 pm, in Room 502 of the Faculty of Mathematics and Informatics, Veliko Tarnovo University. A talk on Lee distance in analyzing and modeling rank data will be delivered by Nikolay I. Ivanov, IMI - BAS. Abstract: Distances on permutations are commonly used in rank data analysis and are an efficient tool for constructing probability models for rankings. In this talk, we consider some probabilistic applications of the Lee distance, which was originally developed as a generalization of the Hamming distance for error correction coding in modulation. In particular, we study the “K-means” clustering procedure based on Lee distance and approximate the normalizing [...]

A meeting of the Seminar on Mathematical Foundations of Informatics will be held in Veliko Tarnovo on March 18, 2024, at 4:30 pm, in Room 401 of Building 4 of the Veliko Tarnovo University. A talk on LCD Codes over Mixed Alphabets will be delivered by Maryam Bajalan, IMI - BAS. Abstract: In this presentation, we describe the structural properties of (Galois) linear complementary dual codes over mixed alphabets arising from finite chain rings. Our focus centres on providing a comprehensive characterization, outlining the conditions under which a given code falls into this category and it is Galois invariant. This leads to the study of the Gray image of FpFp[θ]-linear codes, where p ∈ {2,3} and θ ≠ θ2 = 0 , that provides Fp-linear [...]

A meeting of the Seminar on Mathematical Foundations of Informatics will be held in Veliko Tarnovo on January 17, 2024, at 4 pm, in Room 502 of the Faculty of Mathematics and Informatics of the Veliko Tarnovo University. A talk on Build your own digital device, even a multicore and multithreaded  icrocontroller with FPGA will be delivered by Dushan Bikov, Gotse Delchev University in Stip. Abstract: The use of Field-Programmable Gate Arrays (FPGAs) plays an essential role in providing flexibility for digital design. We then delve into practical insights on utilizing and constructing Intellectual Property (IP) cores within the FPGA framework. In addition to this, a new type of multithreaded and multicore microcontroller will be presented. The aim is to provide more computing power [...]