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 181 for “"Deadlines"”.
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Scheduling Task With State -Dependent Deadlines
… intervals. When the future values of job deadlines are unknown, it is not possible to make optimal determination of feasible intervals. We developed several algorithms to determine probabilistically feasible interval start times and end times for each job so that the probability of a job …
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End-to-end scheduling to meet deadlines in distributed systems
… typically given as end-to-end release times and deadlines. This thesis describes algorithms to schedule a class of systems where all the tasks execute on different processors in turn in the same order. This end-to-end scheduling problem is known as the flow-shop problem. We present several cases …
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Optical Flow Switching with time deadlines for high-performance applications
This thesis focuses on the design and analysis of scheduling approaches for Optical Flow Switching (OFS) serving high performance applications with very stringent time deadline constraints. In particular, we attempt to meet setup times only slightly longer than one roundtrip time with networks at …
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Fixed-Priority Scheduling of Periodic Tasks With End-to-End Deadlines
As an application of the framework, the thesis proposes an end-to-end scheduling based approach to the resource contention problem in distributed real-time systems. Simulation results show that the end-to-end scheduling approach performs better in many cases than an existing approach, known as the …
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Scheduling Real-Time Computations With Temporal Distance and Separation Constraints and With Extended Deadlines
… can be delayed after their first (primary) deadlines but must be finished before their second (extended) deadlines. We study two variations of this problem. In the first model, the system receives a penalty for each computation that does not finish its execution before its primary deadline. …
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Static-task scheduling incorporating precedence constraints and deadlines in a heterogeneous-computing environment / Michael D Niedert
Distributed systems have grown in popularity due to the rapid increase in networking of personal computers. A mixture of computers consisting of different architectures can be more powerful, reliable, and scalable than a single supercomputer. The problem of optimally scheduling jobs on a cluster of …
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Audit and Compilation Report Timeliness in Local Governments: an Empirical Investigation of Mississippi Governmental Entities That Exceed State Reporting Deadlines
For governmental audit and compilation reports to be relevant, they must be prepared and made available to the public in a timely manner. The purpose of this study is to identify variables that have an influence on audit and compilation report delay in governments. This research utilizes …
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Do Tight Deadlines and Dirty Diapers Fuel or Fizzle the Next Big Thing? The Differential Effect of Work and Non-Work Stressors on Employee Creativity
As our society has transitioned from an economy built on production to one built on knowledge, employee creativity has become necessary for organizations seeking to gain and maintain profits. Therefore, the focus of this dissertation was to investigate how an employee’s social environment, …
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Utilizing slack time for aperiodic and sporadic requests scheduling in real-time systems
… task have regular arrival times and hard deadlines. Aperiodic requests, on the other hand, have random arrival times and may have hard or soft deadlines. We called these aperiodic requests with hard deadlines sporadic requests and those with soft deadlines aperiodic requests.
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Applications and extensions of the imprecise-computation model
… must produce logically correct results by their deadlines. The correctness of such a system depends not only on the logical correctness of the results but also on the tasks completing by their deadlines.
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A Comparison of Two Testing Schedules for Purposes of Student Self-Pacing
… investigated the effects of manipulation of unit deadlines in order to decrease instructor control. Procedures. The reduction of instructor control was accomplished by increasing the amount of time and material between deadlines. Another group was teasted under a traditional schedule in which …
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Fault Tolerance for Real-Time Systems: Analysis and Optimization of Roll-back Recovery with Checkpointing
… while satisfying given time constraints (deadlines). Depending on the consequences when the deadlines are violated, RTSs are classified into soft and hard RTSs. While violating deadlines in soft RTSs usually results in some performance degradation, violating deadlines in hard RTSs results …
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On Best-Effort Utility Accrual Real-Time Scheduling on Multiprocessors
… the total accrued utility and the number of deadlines satisfied during overloads, while ensuring task mutual exclusion constraints and freedom from deadlocks. This problem is NP-hard. We develop a class of polynomial-time heuristic algorithms, called the Global Utility Accrual (or GUA) class …
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Essays on Behavioral Economics and Sophisticated Procrastination
… costs of sustained effort. In this framework, deadlines act as external constraints that help perfectionists limit open-ended striving and bring tasks to completion. An accompanying experiment tests the model’s prediction and finds that perfectionists are more likely to prefer deadlines. These …
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Bridging Time Preferences and Social Preferences
… varied preferences for timing flexibility in deadlines when working on prosocial tasks vs. self-interested tasks. We propose that people may procrastinate more on prosocial tasks, because they might procure positive diagnostic utilities of a superior self-image by merely committing to a …
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Scheduling in Real-Time Systems to Ensure Graceful Degradation: The Imprecise-Computation and the Deferred-Deadline Approaches
… manner. Imprecise computations and deferred deadlines are two approaches to provide this graceful, predictable degradation.
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Percepção do perito contábil quanto aos fatores facilitadores e limitadores para desenvolver uma perícia
… of reliability in the accounting records, short deadlines and documents in difficult state of understanding. Regarding the factors facilitating the work of the accounting expert, they were identified by the accounting records organized, access to people who can clarify information, understandable …
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Optimizing Information Freshness in Wireless Networks
… there is a lack of research on guaranteeing AoI deadlines. The goal of this dissertation is to address these two limitations in the state-of-the-art. First, we design schedulers to minimize AoI under more practical settings, including varying sampling periods, varying sample sizes, cellular …
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New models for homeland security and public safety
… are resolvable only before certain time deadlines that could be unknown. We show how to construct routes that guarantee minimum desired probabilities for resolving these incidents, and experimental results suggest that a larger budget can help neutralize the adverse impact of deadline …
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Optimization Strategies for Qos-Sensitive VOD Service Delivery in Cooperative Environments
… of replicas in order to satisfy these access deadlines. We show that this problem is intractable, since it is NP-complete. We present centralized as well as distributed solutions.
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