Results 81 to 90 of about 3,422,913 (297)
Improved Method for Interleaving Parameter Estimation in a Non-Cooperative Context
IEEE Access, 2019 In a non-cooperative context, a sequence acquired from remote sensing through satellites and aircraft can be recognized as an unknown sequence to a receiver who lacks the information of the transmission parameters.
Geunbae Kim, Mingyu Jang, Dongweon Yoon
doaj +1 more source
FEBS Letters, EarlyView.Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell +2 more
wiley +1 more source
Attention-Based Sequence Learning Model for Travel Time Estimation
IEEE Access, 2020 Travel time estimation (TTE) on a specific route is a challenging task since the complex road network structure and hard-captured temporal patterns. Many excellent methods have been proposed to address the aforementioned problems.
Zhong Wang +3 more
doaj +1 more source
A note on density estimation for binary sequences [PDF]
Statistics & Probability Letters, 2013 A histogram estimate of the Radon-Nikodym derivative of a probability measure with respect to a dominating measure is developed for binary sequences in $\{0,1\}^{\mathbb{N}}$. A necessary and sufficient condition for the consistency of the estimate in the mean-square sense is given.
openaire +2 more sources
Structural and biochemical analysis of a B12 superbinder
FEBS Letters, EarlyView.BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices +3 more
wiley +1 more source
Tongxin xuebao, 2006 A channel estimation method was proposed based on decision directed technique and pilot tracking for OFDM WLANS with mobile terminals. The result of training sequence based estimation was used as the initialization of decision directed technique.
CHEN Hui, CHEN Xiao-guang
doaj +2 more sources
Joint Channel, Carrier-Frequency-Offset and Noise-Variance Estimation for OFDM Systems Based on Expectation Maximization [PDF]
, 2010 In this paper, a joint channel, carrier-frequency-offset (CFO) and noise-variance estimation scheme is proposed for OFDM systems which is based on Expectation and Maximization (EM) algorithm.
Xiaomin Mu +5 more
core +2 more sources
IEEE Access, 2019 For most deep learning practitioners, recurrent networks are often used for sequence modeling. However, recent researches indicate that convolutional architectures may be used to optimize recurrent networks on some machine translation tasks.
Zhelin Huang +4 more
doaj +1 more source
Estimation of the Last Mean of a Monotone Sequence
The Annals of Mathematical Statistics, 1970 Let \(X_1\), \(i= 1,2\), be independent normal random variables with means \(\theta_i\), and known variances. Without loss of generality we let the variance of \(X_1\) be \(\tau\) and the variance of \(X_2\) be \(1\). Assume \(X_2\ge X_1\), and consider the problem of estimating \(X_2\) with respect to a squared error loss function. Let \(\delta(X_2)\)
Cohen, Arthur, Sackrowitz, Harold B.
openaire +3 more sources
FEBS Letters, EarlyView.Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav +2 more
wiley +1 more source