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751
Uniform CR Bound: Implement ation Issues And Applications
"... We apply a uniform CramerRao (CR) bound [l] to study the biasvariance tradeoffs in single photon emission computed tomography (SPECT) image reconstruction. The uniform CR bound is used to specify achievable and unachievable regions in the biasvariance tradeoff plane. The image reconstruction al ..."
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We apply a uniform CramerRao (CR) bound [l] to study the biasvariance tradeoffs in single photon emission computed tomography (SPECT) image reconstruction. The uniform CR bound is used to specify achievable and unachievable regions in the biasvariance tradeoff plane. The image reconstruction
Uniform CR Bound: Implementation Issues And Applications
 in Conf. Rec. of the IEEE Nuc. Sci. Symp. Med. Im. Conf
, 1994
"... We apply a uniform CramerRao (CR) bound [1] to study the biasvariance tradeoffs in single photon emission computed tomography (SPECT) image reconstruction. The uniform CR bound is used to specify achievable and unachievable regions in the biasvariance tradeoff plane. The image reconstruction al ..."
Abstract

Cited by 8 (4 self)
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We apply a uniform CramerRao (CR) bound [1] to study the biasvariance tradeoffs in single photon emission computed tomography (SPECT) image reconstruction. The uniform CR bound is used to specify achievable and unachievable regions in the biasvariance tradeoff plane. The image reconstruction
Exploring estimator biasvariance tradeoffs using the uniform CR bound
 IEEE Trans. on Sig. Proc
, 1996
"... We introduce a plane, which we call the deltasigma plane, that is indexed by the norm of the estimator bias gradient and the variance of the estimator. The norm of the bias gradient is related to the maximum variation in the estimator bias function over a neighborhood of parameter space. Using a un ..."
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Cited by 57 (17 self)
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uniform CramerRao (CR) bound on estimator variance a deltasigma tradeoff curve is specied which denes an "unachievable region" of the deltasigma plane for a specified statistical model. In order to place an estimator on this plane for comparison to the deltasigma tradeoff curve
BiasVariance Tradeoffs Analysis Using Uniform CR Bound
 in Proc. IEEE Intl. Conf. on Image Processing
, 1994
"... We quantify fundamental biasvariance tradeoffs for the image reconstruction problem in radiopharmaceutical tomography using CramerRao (CR) bound analysis. The image reconstruction problem is very often biased and the classical or the unbiased CR bound on the mean square error performance of the e ..."
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Cited by 9 (4 self)
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We quantify fundamental biasvariance tradeoffs for the image reconstruction problem in radiopharmaceutical tomography using CramerRao (CR) bound analysis. The image reconstruction problem is very often biased and the classical or the unbiased CR bound on the mean square error performance
Monitors: An Operating System Structuring Concept
 Communications of the ACM
, 1974
"... This is a digitized copy derived from an ACM copyrighted work. It is not guaranteed to be an accurate copy of the author's original work. This paper develops BrinchHansen's concept of a monitor as a method of structuring an operating system. It introduces a form of synchronization, descri ..."
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Cited by 566 (0 self)
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, describes a possible rnctltotl of implementation in terms of semaphorcs and gives a suitable proof rule. Illustrative examples include a single rcsourcc scheduler, a bounded buffer, an alarm clock, a buffer pool, a disk head optimizer, and a version of the problem of readers and writers. Key Words
Effects of electrode location error on boundary element impedance tomography solutions: CR bounds and simulation results
 3rd IEEE ISBI: Nano to Macro
, 2006
"... Electrical Impedance Tomography is an imaging modality that estimates the conductivity map inside a volume from electrical measurements on its surface. It is a badly posed inverse problem; one stabilization approach approximates the volume as having piecewise constant conductivity. One can then ..."
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Cited by 1 (0 self)
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locating the electrodes used to inject current and measure voltage. We study this sensitivity by calculating the CramérRao Lower Bound and through simulations. We explore three measurement methods in both static and dynamic imaging. Results show that sensitivity is particularly high for localized inhomogeneities
Heuristic algorithms for scheduling independent tasks on nonidentical processors
 Journal of the ACM
, 1977
"... ABSTRACt. The finishing time properties of several heuristic algorithms for scheduhng n independent tasks on m nonidentical processors are studied In particular, for m = 2 an n log n timebounded algorithm is given which generates a schedule having a fimshmg Ume of at most (.,/5 + 1)/2 of the optima ..."
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Cited by 247 (0 self)
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independent tasks, nonidentical processors, identical processors, timebounded algorithm, LPT schedule, SPT schedule, Pcomplete problem, time complexity CR CATEGORIES. 4 32, 5 39 1.
Algorithms for the longest common subsequence problem
 J. ACM
, 1977
"... AaS~ACT Two algorithms are presented that solve the longest common subsequence problem The first algorithm is applicable in the general case and requires O(pn + n log n) time where p is the length of the longest common subsequence The second algorithm requires time bounded by O(p(m + 1 p)log n) In ..."
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Cited by 218 (2 self)
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AaS~ACT Two algorithms are presented that solve the longest common subsequence problem The first algorithm is applicable in the general case and requires O(pn + n log n) time where p is the length of the longest common subsequence The second algorithm requires time bounded by O(p(m + 1 p)log n
CurvatureInduced Bound States In Quantum Waveguides In Two And Three Dimensions
 Math. Phys
, 1995
"... Dirichlet Laplacian on curved tubes of a constant cross section in two and three dimensions is investigated. It is shown that if the tube is nonstraight and its curvature vanishes asymptotically, there is always a bound state below the bottom of the essential spectrum. An upper bound to the number ..."
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Cited by 159 (16 self)
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Dirichlet Laplacian on curved tubes of a constant cross section in two and three dimensions is investigated. It is shown that if the tube is nonstraight and its curvature vanishes asymptotically, there is always a bound state below the bottom of the essential spectrum. An upper bound
A Recursive Algorithm for Computing CRType Bounds on Estimator Covariance
, 1994
"... We derive an iterative algorithm that calculates submatrices of the Cram'erRao (CR) matrix bound on the covariance of any unbiased estimator of a vector parameter `. Our algorithm computes a sequence of lower bounds that converges monotonically to the CR bound with exponential speed of converg ..."
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Cited by 20 (9 self)
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We derive an iterative algorithm that calculates submatrices of the Cram'erRao (CR) matrix bound on the covariance of any unbiased estimator of a vector parameter `. Our algorithm computes a sequence of lower bounds that converges monotonically to the CR bound with exponential speed
Results 1  10
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751