21,182 research outputs found
Symmetric Radial Basis Function Assisted Space-Time Equalisation for Multiple Receive-Antenna Aided Systems
This constribution considers nonlinear space-time equalisation (STE) designed for single-input multiple-output (SIMO) systems. By exploiting the inherent symmetry of the underlying optimal Bayesian STE solution, a novel symmetric radial basis function (RBF) based STE scheme is proposed, which is capable of achieving the optimal Bayesian equalisation performance. The adaptive adjustment of the STE taps of this symmetric RBF (SRBF) based STE can be achieved by estimating the SIMO channel encountered using the classic least mean square channel estimator and computing the optimal RBF centres from the resultant SIMO channel matrix estimate. Our simulation results demonstrate that the performance of this SRBF based STE is robust with respect to the choice of the algorithmic parameters
Binarized Convolutional Neural Networks with Separable Filters for Efficient Hardware Acceleration
State-of-the-art convolutional neural networks are enormously costly in both
compute and memory, demanding massively parallel GPUs for execution. Such
networks strain the computational capabilities and energy available to embedded
and mobile processing platforms, restricting their use in many important
applications. In this paper, we push the boundaries of hardware-effective CNN
design by proposing BCNN with Separable Filters (BCNNw/SF), which applies
Singular Value Decomposition (SVD) on BCNN kernels to further reduce
computational and storage complexity. To enable its implementation, we provide
a closed form of the gradient over SVD to calculate the exact gradient with
respect to every binarized weight in backward propagation. We verify BCNNw/SF
on the MNIST, CIFAR-10, and SVHN datasets, and implement an accelerator for
CIFAR-10 on FPGA hardware. Our BCNNw/SF accelerator realizes memory savings of
17% and execution time reduction of 31.3% compared to BCNN with only minor
accuracy sacrifices.Comment: 9 pages, 6 figures, accepted for Embedded Vision Workshop (CVPRW
Modeling of wide-band MIMO radio channels based on NLoS indoor measurements
Link to published version (if available)
Text Coherence Analysis Based on Deep Neural Network
In this paper, we propose a novel deep coherence model (DCM) using a
convolutional neural network architecture to capture the text coherence. The
text coherence problem is investigated with a new perspective of learning
sentence distributional representation and text coherence modeling
simultaneously. In particular, the model captures the interactions between
sentences by computing the similarities of their distributional
representations. Further, it can be easily trained in an end-to-end fashion.
The proposed model is evaluated on a standard Sentence Ordering task. The
experimental results demonstrate its effectiveness and promise in coherence
assessment showing a significant improvement over the state-of-the-art by a
wide margin.Comment: 4 pages, 2 figures, CIKM 201
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