A novel concave hull-based TSP approximation heuristic is also proposed as a part of the Pathfinding Heuristic algorithm. Square and triangular charging station grids are compared in the benchmarks. The classical Shortest Path algorithm is augmented with dynamic constraint edges. For the Pathfinding Heuristics, a combination of custom TSP and custom Shortest Path type heuristics were proposed. The rescue research involved Graph-Theoretic modeling, Probabilistic path analysis, and Pathfinding Heuristics. An approximate solution is searched with Evolutionary Algorithms (Genetic Algorithm, Simulated Annealing, Differential Evolutionary Optimization). The disaster region coverage problem is modeled as the Geometric Set Cover problem. The proposed frameworks are benchmarked in case studies like disaster region coverage for communication and pathfinding for sea rescue operations. In principle, the proposed heuristics either exploit the existing geometric configurations of the entities or introduce geometric regularities for their configurations. Specifically, I proposed multi-party multi-objective (energy, waiting time) optimization frameworks (coverage/pathfinding) in which novel geometry-based heuristics are utilized for drone-based operations. This work enhances the inspection capability of the scanning probe on CMM.įor my doctoral thesis topic, in general, I addressed the issue of limited onboard energy of Electric Vehicles. Unnecessary transition distances are reduced by 31%-75%. The methodology can capture the large form error with the minimum inspection cost. The CLS simulations and scanning experiments are conducted. An Improved Ant Colony Optimization (IACO) is proposed to generate time-saving paths for discrete scanning lines. Secondly, an inspection path planner is utilized to plan local and global inspection paths. Firstly, a Cobweb-Like adaptive Sampling strategy (CLS) is designed to sample the form error by distributing scanning lines in a cobweb-shape mode. Focusing on scanning line distribution and inspection path planning, this paper proposes a two-module scanning inspection planning methodology. With the emergence of the continuous-contact scanning probe, it becomes possible to inspect large-scale scanning lines rapidly without losing accuracy. Benchmarks of the permutation flow shop scheduling problem with the informally derived MIP model and the traveling salesman problem are used to present the limits of the software’s applicability.Ĭoordinate measuring machine (CMM) plays an essential role in the high precision measurement of complex surfaces. The source codes presented may be an aid because this tool is not yet as well known as the MATLAB Optimisation Toolbox. Instead of the traditional approach based on the use of approximate or stochastic heuristic methods, we focus here on the direct use of mixed integer programming models in the GAMS environment, which is now capable of solving instances much larger than in the past and does not require complex parameter settings or statistical evaluation of the results as in the case of stochastic heuristics because the computational core of software tools, nested in GAMS, is deterministic in nature. For some of the derived problems having exponential time complexity, the question arises of their solvability for larger instances. Showing such correlations is one of the aims of this paper. Ha ha they always play that song in the pub I drink in.The assignment problem is a problem that takes many forms in optimization and graph theory, and by changing some of the constraints or interpreting them differently and adding other constraints, it can be converted to routing, distribution, and scheduling problems. I want to rip out the vocal chords of kid rock and cheryl crow everytime I hear it and Im not quite sure why but I think it has something to do with the fact that everytime I am dragged to a karoke bar someone horrible gets up and sings it, Its the one song that Ive actually left establishments when I haerd it played on the sound system.It just came on in my office because some jerk requested it. I hate that song and think anyone who plays this on a jukebox in a pub should be tarred, feathered, beat and dragged through town on the back of a truck carrying pigs The song that makes you want to jump from a plane and land on the city center spire,ĭrink the liffey until your eyes roll into the back of your head. So everyone has one, the song that comes on that makes you want to jump infront of an out of control derailed Luas,
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