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 [...]

On May 14 (Wednesday) at 3:00 p.m. in Room 503 of IMI, a meeting of the Seminar of the ORPS Department will be held. A talk on: Busy Beaver for n=5, or How Complex are the Simple Programs will be delivered by Georgi Georgiec, Faculty of Mathematics and Informatics, Sofia University. Abstract. How long can a Turing machine with 5 states and the alphabet {0,1} run before it stops? The tape is initially filled with zeros. Known as “Busy Beaver for n=5” or BB(5), the problem is understandable to any student interested in programming. Solving it took 40 years and demonstrated how complex semantic analysis of even microscopic programs is. The story was told in a fascinating way a year ago in Quanta Magazine: [...]