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.
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Showing 1 to 20 of 37 for “"Asymptotic Performance"”.
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Asymptotic performance of queue length based network control policies
In a communication network, asymptotic quality of service metrics specify the probability that the delay or buffer occupancy becomes large. An understanding of these metrics is essential for providing worst-case delay guarantees, provisioning buffer sizes in networks, and to estimate the frequency …
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The Asymptotic Equating Methodology and Other Test Equating Evaluation Procedures
A methodology is proposed to evaluate the asymptotic performance of test equating methods and of various test equating indices. A test theoretic viewpoint is taken to develop the asymptotic equating methodology and the conditional equating analyses methodology. An asymptotic equating study may be …
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On The Design Of Physical Layer Rateless Codes
… (SCLDGM) codes. Though single LDGM codes are asymptotically bad codes, the SCLDGM codes are known to perform close to the Shannon limit. We first study the asymptotic behaviour of LDGM codes using a discretized density evolution method. We then show that the DDE method can be used in two-steps …
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The Effect of Differing Degrees of Automation and Reliability on Simulated Luggage Screening Performance
… was applied to isolate processing time from performance asymptote, which conventional performance measures such as sensitivity and response time do not distinguish one from the other. Sixty participants performed a luggage screening task unaided (manual condition), with the assistance of an …
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Coding for Frequency-Hopped Spread-Spectrum Channels With Partial-Band Interference
The performance of codes on frequency-hopped spread-spectrum channels with partial-band interference is investigated. The asymptotic performance of codes is measured by the channel capacity and the random coding exponent. The performance of specific codes is measured by the bit error probability. …
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Power and delay trade-offs in fading channels
… channels is discussed. We then analyze the asymptotic performance in two cases - the probability of buffer overflow case and the average delay case. In both cases, we bound the asymptotic performance and provide simple policies which are asymptotically optimal or nearly optimal. Finally we …
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Model selection: Consistency and robustness properties of the Schwarz Information Criterion for generalized M-estimation
… Bias robust M-estimators. In this process, the asymptotic performance of the SIC for generalized M-estimators is also studied. The finite sample behavior of the SIC for different types of M-estimators is analyzed by means of Monte Carlo experiments.
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Essays On Econometrics With Latent Heterogeneity And Production Function Estimation
… conditions to characterise the estimator's asymptotic performance - under large $N$ and $T$ but with $N$ as comparatively larger than $T$. The third chapter studies an Olley-Pakes type (proxy variable) estimator for the firm's production function. Empirical economic literature extensively …
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Data-driven robust solution schemes for sequential decision making
… literature—often suffer from poor out-of-sample performance when data is limited. To address this issue, the dissertation proposes a data-efficient alternative to sample average approximation for multistage stochastic programming with Markovian uncertainty and introduces robust and …
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Quantized Consensus by the Alternating Direction Method of Multipliers: Algorithms and Applications
… exchange, our approach achieves the optimal asymptotic performance of centralized detection. The statement is true under three different detection frameworks: the Bayesian criterion where the maximum a posteriori detector is optimal, the Neyman-Pearson criterion with a constant type-I error …
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Brainstem cholinergic modulation of the limbic learning circuit
… cortical excitatory TIA in rabbits trained to asymptotic performance. In Experiment 2, bilateral lesions in the brainstem laterodorsal tegmental (LDT) and pedunculopontine tegmental (PPT) nuclei, a primary source of AV thalamic cholinergic afferents, retarded acquisition of the avoidance …
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Energy-Efficient Tracking in Sensor Networks
… tradeoff between energy efficiency and tracking performance. We formulate this design problem using various assumptions for the number of objects, the object movement, the observations made by the sensors, and the measure of tracking performance. Even in the simplest cases we are unable to find …
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Approximation algorithms for packing and scheduling problems
… are squares, we design an algorithm with an asymptotic performance guarantee arbitrarily close to optimal. In the general case, we give an algorithm that outputs a near-optimal solution, provided it is allowed to use slightly larger bins. Moreover, we extend these algorithmic ideas to handle …
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PERFORMANCE OF COUNTING RULES FOR PRIMARY USER DETECTION
… and Bayes criterion are considered for performance assessment. Our work on the asymptotic performance of counting rules with a very large number of sensors in decentralized detection problem shows that majority logic fusion rule has the same order of performance when compared to the best …
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Modeling and Efficient Estimation of Intra-Family Correlations
… on existing and emerging methods of estimation. Asymptotic and small-sample properties are discussed, as is hypothesis testing.</p> <p>The second part of this dissertation involves a slightly more complicated version of autoregressive familial correlation, where we now model heterogeneous …
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Model-Based Learning and Planning for Intelligent Manipulation Using Probabilistic Hybrid Models
… learning techniques have shown good performances in learning closed-loop policies for a selected sets of atomic manipulation skills, but they often require a prohibitive amount of training data and lack interpretability in the learned policy models. To reduce the cost of learning …
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Decentralized detection in sensor network architectures with feedback
… determining the value of feedback in improving performance in the regime of asymptotically many sensors. We formulate the decentralized detection problem for different network configurations of interest under both the Neyman-Pearson and the Bayesian criteria. In a configuration with feedback, …
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Autonomous adaptive acoustic relay positioning
… learn and exploit spatial variations in channel performance. The acoustic channel is the main practical method of underwater wireless communication and improving channel throughput and reliability is key to improving the capabilities of underwater vehicles. Predicting the performance of the …
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Algorithms in time series
… there are important differences as concerns the asymptotic performance of certain parameter estimation algorithms. However, to effect the identification process in real-time recursive estimation algorithms are required. Furthermore, these procedures need to be adaptive to be applicable in …
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Algorithms in time series
… there are important differences as concerns the asymptotic performance of certain parameter estimation algorithms. However, to effect the identification process in real-time recursive estimation algorithms are required. Furthermore, these procedures need to be adaptive to be applicable in …
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