Results 31 to 40 of about 154,884 (290)

An Improved Magnetic Field Method to Locate the Grounding Conductor

open access: yesSensors, 2023
The location of the grounding grid conductors is critical for performing corrosion diagnosis and maintenance work. An improved magnetic field differential method to locate the unknown grounding grid based on truncation errors and the round-off errors ...
Fan Yang   +4 more
doaj   +1 more source

Multiple precision evaluation of the Airy Ai function with reduced cancellation [PDF]

open access: yes, 2013
The series expansion at the origin of the Airy function Ai(x) is alternating and hence problematic to evaluate for x > 0 due to cancellation. Based on a method recently proposed by Gawronski, M\"uller, and Reinhard, we exhibit two functions F and G, both
Chevillard, Sylvain, Mezzarobba, Marc
core   +6 more sources

Methods of Combating the Accumulation of Rounding Error When Solving Problems of Trans-Computational Complexity

open access: yesКібернетика та комп'ютерні технології
Introduction. The main attention is paid to the need to take into account estimates of rounding errors when solving problems of transcomputational complexity.
Valerii Zadiraka, Inna Shvidchenko
doaj   +1 more source

Improving Fixed-Point Implementation of QR Decomposition by Rounding-to-Nearest [PDF]

open access: yes, 2015
QR decomposition is a key operation in many current communication systems. This paper shows how to reduce the area of a fixed-point QR decomposition implementation based on Givens rotations by using a new number representation system.
Hormigo-Aguilar, Javier   +1 more
core   +1 more source

Modeling Round-Off Errors in Hydrodynamic Simulations [PDF]

open access: yes, 2022
The growth of the computing capacities makes it possible to obtain more and more precise simulation results. These results are often calculated in binary64 with the idea that round-off errors are not significant. However, exascale is pushing back the known limits and the problems of accumulating round-off errors could come back and require increasing ...
Weens, William   +2 more
openaire   +2 more sources

Real-valued average consensus over noisy quantized channels [PDF]

open access: yes, 2009
This paper concerns the average consensus problem with the constraint of quantized communication between nodes. A broad class of algorithms is analyzed, in which the transmission strategy, which decides what value to communicate to the neighbours ...
Censi, Andrea, Murray, Richard M.
core   +1 more source

The neural crest‐associated gene ERRFI1 is involved in melanoma progression and resistance toward targeted therapy

open access: yesMolecular Oncology, EarlyView.
ERRFI1, a neural crest (NC)‐associated gene, was upregulated in melanoma and negatively correlated with the expression of melanocytic differentiation markers and the susceptibility of melanoma cells toward BRAF inhibitors (BRAFi). Knocking down ERRFI1 significantly increased the sensitivity of melanoma cells to BRAFi.
Nina Wang   +8 more
wiley   +1 more source

A Higher-Order Extended Cubature Kalman Filter Method Using the Statistical Characteristics of the Rounding Error of the System Model

open access: yesMathematics
The cubature Kalman filter (CKF) cannot accurately estimate the nonlinear model, and these errors will have an impact on the accuracy. In order to improve the filtering performance of the CKF, this paper proposes a new CKF method to improve the ...
Haiyang Zhang, Chenglin Wen
doaj   +1 more source

A Static Analyzer for Large Safety-Critical Software [PDF]

open access: yes, 2003
We show that abstract interpretation-based static program analysis can be made efficient and precise enough to formally verify a class of properties for a family of large programs with few or no false alarms.
Antoine Miné   +12 more
core   +11 more sources

Relative distance—an error measure in round-off error analysis [PDF]

open access: yesMathematics of Computation, 1982
Olver (SIAM J. Numer. Anal., v. 15, 1978, pp. 368-393) suggested relative precision as an attractive substitute for relative error in round-off error analysis. He remarked that in certain respects the error measure d ( x ¯ , x ) = min { α
openaire   +1 more source

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