Results 51 to 60 of about 119,630 (158)

Bias of estimates of secondary parameters in linear-boundary sequential tests

, 2003
The context is that of a sequential trial based on Brownian motion with linear stopping boundaries, possibly truncated. Along with the monitoring process, a secondary Gaussian process with constant mean is observed; the mean is to be estimated once the monitoring process reaches a boundary. We provide a formula for the conditional bias, conditioning on
Dragalin, Vladimir, Yakir, Benjamin, Hall, W. J.   +2 more
openaire   +2 more sources

BIAS REDUCTION IN KERNEL ESTIMATOR OF DENSITY FUNCTION IN BOUNDARY REGION

Quantitative Methods in Economics, 2015
The properties of the classical kernel estimator of density function deteriorate when the support of density function is bounded. The use of classical form of kernel estimator causes the increase of the bias estimator, particularly in the so-called ...
Aleksandra Baszczyńska
doaj  

Effect of exonic splicing regulation on synonymous codon usage in alternatively spliced exons of Dscam

BMC Evolutionary Biology, 2009
Background Synonymous codon usage is typically biased towards translationally superior codons in many organisms. In Drosophila, genomic data indicates that translationally optimal codons and splice optimal codons are mostly mutually exclusive, and ...
Takahashi Aya
doaj   +1 more source

Chiral symmetry and scale invariance breaking in spin chains

AIP Advances, 2020
The effects of the Dzyaloshinsky-Moriya interaction on finite size one-dimensional (1D) magnetic chains are investigated as a function of their length. The magnetic configuration the system adopts for varying boundary conditions are explored analytically,
Felipe Torres, Miguel Kiwi, Nicolas M. Vargas, Carlos Monton, Ivan K. Schuller   +4 more
doaj   +1 more source

Individual-specific strategies inform category learning

Scientific Reports
Categorization is an essential task for sensory perception. Individuals learn category labels using a variety of strategies to ensure that sensory signals, such as sounds or images, can be assigned to proper categories.
Jared S. Collina, Gozde Erdil, Mingyi Xia, Christopher F. Angeloni, Katherine C. Wood, Janaki Sheth, Konrad P. Kording, Yale E. Cohen, Maria N. Geffen   +8 more
doaj   +1 more source

Assessment of the Sensitivity of the Mean Climate Simulation over West Africa to Planetary Boundary Layer Parameterization Using RegCM5 Regional Climate Model

Atmosphere
This study evaluates the performance of two planetary boundary parameterizations in simulating the mean climate of West Africa using the Regional Climate Model version 5 (RegCM5). These planetary boundary parameterizations are the Holtslag scheme and the
Foungnigué Silué, Adama Diawara, Brahima Koné, Arona Diedhiou, Adjon Anderson Kouassi, Benjamin Komenan Kouassi, Fidèle Yoroba, Adama Bamba, Kouakou Kouadio, Dro Touré Tiémoko, Assi Louis Martial Yapo, Dianicoura Ibrahim Koné, Adjoua Moise Landry Famien   +12 more
doaj   +1 more source

Adaptive composite loss for volumetric whole heart segmentation

Scientific Reports
Accurate segmentation in medical imaging requires loss functions that capture both regional overlap and boundary alignment. This study evaluates composite losses combining binary cross-entropy (BCE) and a boundary-based term under fixed and adaptive ...
Krittanat Sutassananon, Worapan Kusakunniran, Mehmet Orgun, Thanongchai Siriapisith   +3 more
doaj   +1 more source

Correcting Multivariate Biases in Regional Climate Model Boundaries: How Are Synoptic Systems Impacted Over the Australian Region?

Geophysical Research Letters
Synoptic climatology, which connects atmospheric circulation with regional environmental conditions, is pivotal to understanding climate dynamics. While regional climate models (RCMs) can reproduce key mesoscale precipitation patterns, biases related to ...
Youngil Kim, Jason P. Evans, Ashish Sharma   +2 more
doaj   +1 more source

Simulating the Potential Evapotranspiration of Egypt Using the RegCM4: Sensitivity to the Land Surface and Boundary Layer Parameterizations

Hydrology
Assessing the daily water requirements of crops and understanding the severity of drought necessitates precise estimation of potential evapotranspiration (PET), particularly in regions with arid climates such as Egypt.
Samy A. Anwar, Christiana F. Olusegun
doaj   +1 more source

Real-Time Automated Geosteering Interpretation Combining Log Interpretation and 3D Horizon Tracking

Geosciences
Existing methods for estimating formation boundaries from well-log data only analyze the formation along the wellbore, failing to capture changes in the 3D formation structure around it.
John D’Angelo, Zeyu Zhao, Yifan Zhang, Pradeepkumar Ashok, Dongmei Chen, Eric van Oort   +5 more
doaj   +1 more source