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503
Locating and Correcting Errors in Images
, 1997
"... Most image interpolation or extrapolation algorithms assume that the locations of the unknown pixels are known. In this paper we attempt to remove this restriction. More precisely, we propose an algorithm for locating the incorrect pixels of an image, assuming only partial knowledge of its Fourier t ..."
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transform. Note that this is a nonlinear problem: the unknown quantities are the positions and values of the (say) n erroneous pixels. We show that the positions can be evaluated in O(n 2 ) or even O(n log n) flops by solving a set of n linear equations and computing a FFT. The determination of n is part
Corrective feedback and learner uptake: Negotiation of form in communicative classroom.
- Studies in Second Language Acquisition,
, 1997
"... This article presents a study of corrective feedback and learner uptake (i.e., responses to feedback) in four immersion classrooms at the primary level. Transcripts totaling 18.3 hours of classroom interaction taken from 14 subject-matter lessons and 13 French language arts lessons were analyzed us ..."
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Cited by 173 (6 self)
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area. One part of the study focused on teaching strategies, including error correction practices. They found a significant difference between the L1 and L2 teachers' correcting behavior: The French immersion teachers tended to explicitly correct the L2 learners more in the earlier grade than
Correction of Scanning and Projection Errors in An Active Depth Sensor
, 1996
"... A procedure for correction or recalibration of a laser sensor for depth image acquisition by triangulation is presented. This takes into account misalignment of both the motion of a translation stage and the geometry of the projected laser plane. The improvement in the accuracy of the acquired d ..."
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and error correction of both the laser geometry and the scanning motion following an initial static c...
An Improved Threshold Ring Signature Scheme Based on Error Correcting Codes
"... Abstract. The concept of threshold ring signature in code-based cryptography was introduced by Aguilar et al. in [1]. Their proposal uses Stern’s identification scheme as basis. In this paper we construct a novel threshold ring signature scheme built on the q-SD identification scheme recently propos ..."
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proposed by Cayrel et al. in [14]. Our proposed scheme benefits of a performance gain as a result of the reduction in the soundness error from 2/3 for Stern’s scheme to 1/2 per round for the q-SD scheme. Our threshold ring signature scheme uses random linear codes over the field Fq, secure in the random
Coil sensitivity encoding for fast MRI. In:
- Proceedings of the ISMRM 6th Annual Meeting,
, 1998
"... New theoretical and practical concepts are presented for considerably enhancing the performance of magnetic resonance imaging (MRI) by means of arrays of multiple receiver coils. Sensitivity encoding (SENSE) is based on the fact that receiver sensitivity generally has an encoding effect complementa ..."
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Cited by 193 (3 self)
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of this section gives a practical description of the Cartesian case. The following parts are dedicated to general theory, SNR and error considerations, and sensitivity assessment. Sensitivity Encoding With Cartesian Sampling of k-Space In two-dimensional (2D) Fourier imaging with common Cartesian sampling of k
1An Efficient Feedback Coding Scheme with Low Error Probability for Discrete Memoryless Channels
"... Existing feedback communication schemes are either specialized to particular channels (Schalkwijk–Kailath, Horstein), or apply to general channels but have high coding complexity (block feedback schemes) or are difficult to analyze (posterior matching). This paper introduces a feedback coding scheme ..."
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scheme that combines features from previous schemes in addition to a new randomization technique. We show that our scheme achieves the capacity for all discrete memoryless channels and establish a bound on its error exponent that approaches the sphere packing bound as the rate approaches the capacity
A PART Tragedy: The Case of Upward Bound Correcting for Study Error in the Random Assignment 1992-2004 National Evaluation of Upward Bound
"... serving as the project director for national evaluations of Student Support Services and Talent Search, and the UB performance reporting contracts. She also served as survey director for the Third Follow- up and initiation of the Fourth Follow-up data collections for the study that is the subject of ..."
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more academically at-risk students. Major technical issues discussed include: 1) extreme unequal weighting; 2) treatment-control group non-equivalency; 3) survey non-response bias; 4) lack of standardization for expected high school graduation year (EHSGY) in outcome measurement; and 5) service
for Sparse Translation-Invariant Signals
"... Document Version Early version, also known as pre-print Link to publication from Aalborg University Citation for published version (APA): ..."
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Document Version Early version, also known as pre-print Link to publication from Aalborg University Citation for published version (APA):
Results 1 - 10
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503
