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Roulette Gambling
Vlk, Marek ; Malohlava, Michal (advisor) ; Šimko, Viliam (referee)
This work goes into roulette gambling. Its pivotal intension is to design and implement this game. The application provides two playing modes: "training game" working o -line and "real game" that performs multi-player game on-line. The work takes a focus on speed and reliability of network communication and on user-friendly 3D casino environment. Furthermore, the program provides playing and simulation of game systems implemented in the program and allows importing own system. The application is written in C# language for Windows platform. Network communication is realized via .NET Remoting.
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Diagnostics and therapy of selected head and neck malignancies and premalignancies with photo nic medicine
Vlk, Marek ; Mazánek, Jiří (advisor) ; Dostálová, Taťjána (referee) ; Dundr, Pavel (referee)
Diagnostics and therapy of selected head and neck malignancies and premalignancies with photonic therapy (PDT) Introduction: Lasers are used widely in the modern-day medicine, including the head and neck surgery. Our objective was to evaluate the use of laser intervention in leucoplakia treatment, during the laser interstisial hyperthermia (LITT) and in the modification of PDT. Materials and methods: In all the indications, the diode laser emitting at the wavelength 980 nm was used. Altogether we treated 76 leucoplakia lesions in 66 pacients by laser vaporization. LITT was applied in 32 oncological patients with more-advanced-stage head and neck tumors (9 parameters were observed). 74 BCC (sBCC/nBCC) lesions in 33 pacients were treated with modified PDT. We observed not only the objective aspects (the efficacy of the treatment) but also the subjective therapy evaluation by the patients themselves. Results: The efficacy of the leucoplakia treatment was 94,7 %. LITT influenced positively all the 9 observed parameters. The resultant efficacy of the PDT was influenced positively by the laser intervention too. The success rate of the combined method was almost 98 % for sBCC and 92 % for nBCC (measured by the number of lesions). The laser intervention was tolerated very well by the patients. Conclusion: We...
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Optional Activities in Scheduling
Vlk, Marek ; Barták, Roman (advisor) ; Oddi, Angelo (referee) ; Tomášková, Hana (referee)
Scheduling allocates scarce resources to activities such that certain constraints are satisfied and specific objectives are optimized. The activities to be executed are com- monly known or determined a priori in the planning stage. To improve the flexibility of scheduling systems, the concept of optional activities was invented. Optional activities are those activities whose presence in the resulting schedule is to be decided. Rather than determining which activities need to be executed and scheduling them in two consecu- tive phases, flexibility and efficiency can be improved significantly when both activity selection and time allocation are integrated within the same solver. Such an approach was implemented in a few Constraint Programming solvers and manifested great perfor- mance on multiple scheduling problems. In this thesis, we apply the concept of optional activities to scheduling problems that do not seem to involve optional activities, such as the production scheduling problem with sequence-dependent non-overlapping setups, but also on problems beyond the scheduling domain, such as the multi-agent path finding problem and its extension with weighted and capacitated arcs. 1
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Solving Algorithms for Multi-agent Path Planning with Dynamic Obstacles
Majerech, Ondřej ; Surynek, Pavel (advisor) ; Vlk, Marek (referee)
In this work we present the problem of multi-agent path-finding with dynamic obstacles, a generalisation of multi-agent path-finding (MAPF) in which the environment contains randomly-moving dynamic obstacles. This generalisation can be though of as an abstraction of incomplete knowledge of the environment or as a simplification of the multi-agent path-finding where we do not include all agents in the cooperative planner. We adapt three planning algorithms for MAPF to work in an environment with dy- namic obstacles: Local-Repair A* (LRA*), Windowed Hierarchical Cooper- ative A* (WHCA*) and Operator Decomposition with Independence Detec- tion (OD/ID). In addition, we propose two heuristics for these algorithms in dynamic environments: Path Rejoining and Obstacle Predictor. In our experiments, we find that LRA* and WHCA* are best suited for the dy- namic environment. The Path Rejoining heuristic is successful in improving run-times at a small cost in makespan. Obstacle Prediction is capable of lowering the number of times a plan has to be found, but the overhead of our implementation outweighs any performance benefits in most cases. 1
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Dynamic Scheduling
Vlk, Marek ; Barták, Roman (advisor) ; Duša, Vladimír (referee)
One of the problems of real-life production scheduling is dynamics of manufacturing environments with new production demands and breaking machines during the schedule execution. Simple rescheduling from scratch in response to unexpected events occurring on the shop floor may require excessive computation time. Moreover, the recovered schedule may be prohibitively deviated from the ongoing schedule. This thesis reviews existing approaches in the field of dynamic scheduling and proposes techniques how to modify a schedule to accommodate disturbances such as resource failure, hot order arrival or order cancellation. The importance is put on the speed of suggested procedures as well as on a minimum modification from the original schedule. The scheduling model is motivated by the FlowOpt project, which is based on the Temporal Networks with Alternatives. The algorithms are written in the C# language.
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Diagnostics and therapy of selected head and neck malignancies and premalignancies with photo nic medicine
Vlk, Marek ; Mazánek, Jiří (advisor) ; Dostálová, Taťjána (referee) ; Dundr, Pavel (referee)
Diagnostics and therapy of selected head and neck malignancies and premalignancies with photonic therapy (PDT) Introduction: Lasers are used widely in the modern-day medicine, including the head and neck surgery. Our objective was to evaluate the use of laser intervention in leucoplakia treatment, during the laser interstisial hyperthermia (LITT) and in the modification of PDT. Materials and methods: In all the indications, the diode laser emitting at the wavelength 980 nm was used. Altogether we treated 76 leucoplakia lesions in 66 pacients by laser vaporization. LITT was applied in 32 oncological patients with more-advanced-stage head and neck tumors (9 parameters were observed). 74 BCC (sBCC/nBCC) lesions in 33 pacients were treated with modified PDT. We observed not only the objective aspects (the efficacy of the treatment) but also the subjective therapy evaluation by the patients themselves. Results: The efficacy of the leucoplakia treatment was 94,7 %. LITT influenced positively all the 9 observed parameters. The resultant efficacy of the PDT was influenced positively by the laser intervention too. The success rate of the combined method was almost 98 % for sBCC and 92 % for nBCC (measured by the number of lesions). The laser intervention was tolerated very well by the patients. Conclusion: We...
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Roulette Gambling
Vlk, Marek ; Malohlava, Michal (advisor) ; Šimko, Viliam (referee)
This work goes into roulette gambling. Its pivotal intension is to design and implement this game. The application provides two playing modes: "training game" working o -line and "real game" that performs multi-player game on-line. The work takes a focus on speed and reliability of network communication and on user-friendly 3D casino environment. Furthermore, the program provides playing and simulation of game systems implemented in the program and allows importing own system. The application is written in C# language for Windows platform. Network communication is realized via .NET Remoting.
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