Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 32 for “"Lookahead"”.
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Tracking switch fluid policies : bounding lookahead
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2002.
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Query lookahead for query-based document categorization
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1999.
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The Role of Lookahead in Reinforcement Learning Algorithms
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-09-16 without embargo terms
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Scaling Bayesian optimization for engineering design : lookahead approaches and multifidelity dimension reduction
… obtained at the end of the optimization. This lookahead approach requires tools to quantify the effects a decision has over several steps in the future. To do so, we use Gaussian processes as generative models and combine them with dynamic programming to formulate the optimal planning strategy. …
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Checkpoint-based forward recovery using lookahead execution and rollback validation in parallel and distributed systems
… To reduce the run-time recovery overhead, lookahead processes are used to advance computation speculatively and a rollback process is used to produce a diagnosis for correct lookahead processes without rollback of the whole system. Both analytical and experimental evaluation have shown that …
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Propuesta de un procedimiento de control de cronograma por medio del uso de Lookahead durante la fase de casco del proyecto Braganza en Santiago de Surco
… de investigación comprende la implementación del Lookahead del Last Planner System como herramienta para mejorar el control del cronograma en el proyecto Braganza en la etapa de casco. Este estudio se origina debido a un inadecuado control del cronograma en algunos proyectos de construcciones …
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Automated planning for hydrothermal vent prospecting using AUVs
… The novel algorithms are information lookahead and expected-entropy-change planners, together with an orienteering problem (OP) correction that can be used with either planner. Information lookahead applies online POMDP methods to the problem, and was found to be effective in locating …
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Large-scale and high-fidelity wireless network simulation and emulation
… parallel across multiple machines. Application lookahead, the ability to predict future behavior of software, can help further improve speed and scalability by reducing the frequency of synchronization. However, it may affect fidelity as lookahead could be wrong due to software complexity and …
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Reducing list access time for LISP execution
… A popular prefetching algorithm is one block lookahead (OBL). Caches help to improve system performance mainly because of the localities that exist in most program executions. The locality characteristics of list reference patterns are: both car and cdr pointer distances are likely to be …
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Competitive prefetching and buffer management for parallel I/O systems
… for parallel I/O systems. Two models of lookahead, global and local, which give limited information regarding future accesses are introduced. Two configurations of the I/O buffer, shared and distributed, are considered, based upon the accessibility of the I/O buffer. The performance of …
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Efficient parallel simulations and their application to communication networks
… experimental studies have suggested that lookahead, a capability that allows a simulation to look into the simulation time future, plays an important role in the performance of the conservative simulation. Although the performance of conservative simulation has been the interest in many …
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Impact Of Thread Scheduling On Modern Gpus
… schedulers: Two-level wavefront scheduler, Lookahead wavefront scheduler and Two-level + Lookahead wavefront scheduler, and Block workgroup scheduler. We implement and test these schedulers on a cycle accurate detailed architectural simulator called Multi2Sim targeting AMD's latest Graphics …
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Optimization and Testing of Nmos Arithmetic Structures (Vlsi, Mos)
… optimization methods for structures in a carry-lookahead family and a family of new circuits for faster column compression (allowing increased performance for multiplication). Additionally, on-chip testing becomes more critical as the delays and costs of off-chip testing increase drastically …
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Data Procurement for Shortest Paths on Random Graphs
… several greedy heuristics, with different lookaheads, for choosing edges. We also prove that any greedy heuristic with lookahead less than the budget has no finite approximation ratio to the optimal policy.
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Sequential learning, large-scale calibration, and uncertainty quantification
… heteroskedastic computer experiments, an optimal lookahead based sequential learning strategy is presented, balancing replication and exploration to facilitate separating signal from input-dependent noise. Motivated by challenges in both large data size and model fidelity arising from ever larger …
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External-memory search trees with fast insertions
… This thesis also describes the cache-oblivious lookahead array, which outperforms B-trees for updates at a logarithmic cost in query performance, and does so without knowing the cache parameters of the system it is being run on. The buffered repository B-tree is an external-memory search tree …
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Empirical Analysis of Algorithms for the k-Server and Online Bipartite Matching Problems
… under stochastic setting and implement a lookahead strategy on top of the new online algorithm.
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A simulation-based decision support system for finite population maintenance logistics
… and include age-based replacement, opportunistic lookahead replacement, or no replacement until failure. Also incorporated into the model is the use of two repair facilities, which function as constraints on the resources available to perform maintenance tasks. One repair facility is used under …
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Generation and Analysis of Strategies in an Evolutionary Social Learning Game
… of them) can be computed by doing a lookahead search that predicts how each possible choice of action at the current round is likely to affect future performance. 2. Such strategies are likely to prefer social learning most of the time, but will have ways of quickly detecting …
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Evolutionary Design of Game Vehicles and Their Controllers
… placement of each component. We use simple 1-ply lookahead controllers, simple rule-based controllers, and MCTS-based controllers as means to test and therefore indirectly guide the evolution of vehicle designs. We are able to demonstrate that evolutionary algorithms can be used to generate …
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