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检索条件"主题词=parallel decoding"

共 89 条记录，以下是71-80 订阅

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HIGH DEFINITION IEEE AVS DECODER ON ARM NEON PLATFORM

HIGH DEFINITION IEEE AVS DECODER ON ARM NEON PLATFORM

引用

20th IEEE International Conference on Image Processing (ICIP)

作者： Wang, Ronggang Wan, Jie Wang, Wenmin Wang, Zhenyu Dong, Shengfu Gao, Wen Peking Univ Shenzhen Grad Sch Sch Elect & Comp Engn Beijing Peoples R China

ISBN: (纸本)9781479923410

Nowadays, mobile devices are capable of displaying video up to HD resolution. In this paper, we propose two acceleration strategies for Audio Video coding Standard (AVS) software decoder on multi-core ARM NEON platform. Firstly, data level parallelism is utilized to effectively use the SIMD capability of NEON and key modules are redesigned to make them SIMD friendly. Secondly, a macroblock level wavefront parallelism is designed based on the decoding dependencies among macroblocks to utilize the processing capability of multiple cores. Experiment results show that AVS (IEEE 1857) HD video stream can be decoded in real-time by applying the proposed two acceleration strategies.

关键词： Video decoder parallel decoding IEEE 1857 AVS ARM NEON SIMD

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A novel parallel turbo coding technique based on frame split and trellis terminating

A novel parallel turbo coding technique based on frame split...

引用

4th International Conference on parallel and Distributed Computing, Applications and Technologies (PDCAT 2003)

作者： Wan, K Chen, QC Fan, PZ SW Jiaotong Univ Chengdu 610031 Peoples R China

ISBN: (纸本)0780378407

In this paper, a new parallel Turbo encoding and decoding technique is introduced. In this technique, a long information data frame is first divided into sub-blocks which are then encoded with trellis terminating and decoded by parallel multiple SISO modules. It is shown that, at a slight increase in hardware complexity and a slight loss in the transmission efficiency due to the extra terminating bits appended, the proposed scheme can effectively reduce the decoding delay, and at the same time achieve noticeably better error performance compared with the regular schemes, especially in high code rate situation.

关键词： turbo codes parallel decoding trellis terminating

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A SCALABLE HASH SCHEDULER FOR decoding OF MULTIPLE H.264/AVC STREAMS ON MULTI-CORE ARCHITECTURE

A SCALABLE HASH SCHEDULER FOR DECODING OF MULTIPLE H.264/AVC...

引用

IEEE International Conference on Multimedia and Expo Workshops (ICMEW)

作者： Vu, Dung Kuang, Jilong Bhuyan, Laxmi Univ Calif Riverside Comp Sci & Engn Dept Riverside CA 92521 USA

ISBN: (纸本)9781479947614

Existing scheduling schemes for decoding H.264/AVC multiple streams on multi-core are largely limited by ineffective use of multi-core architecture. Among the reasons are inefficient load balancing, in which common load metrics (e.g. tasks, frames, bytes) are unable to correctly reflect processing load at cores, unscalability of scheduling algorithms for a large scale multi-core, and bottlenecks at schedulers for multi-stream decoding. In this paper, we propose a scalable adaptive Highest Random Weight (HA-HRW) hash scheduler for distributed shared memory multi-core architecture considering the following: 1) memory access and core/cache topology of the multi-core architecture;2) appropriate processing time load metric to enforce a true load balancing;3) hierarchical parallel scheduling to decode multiple streams simultaneously;4) locality characteristics of processing unit candidate to limit search within neighboring cores to enable scalable scheduling. We implement and evaluate our approach on a 32-core SGI server with realistic workload. Comparing with existing schemes, our scheme achieves higher throughput, better load balancing, better CPU utilization, and no jitter problem. Our scheme scales with multi-core and multiple streams as its time complexity is O(1).

关键词： H.264/AVC parallel decoding multiple streams Highest Random Weight

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parallel Burst Correction of Cyclic Codes

Parallel Burst Correction of Cyclic Codes

引用

70th IEEE Vehicular Technology Conference

作者： Fossorier, Marc Zeng, Yanxing Geng, Dongyu Leung, Raymond W. K. Feng, Dongming CNRS ETSI ENSEA UCPUMR 8051 6 Ave Ponceau F-95014 Cergy Pontoise France HUAWEI Res Media & Commun Lab Shenzhen Peoples R China

In his paper, a method to perform parallel decoding of the errors within a burst is presented for cyclic codes. It is shown that O(L) operations per position are sufficient to estimate each error of a burst of length ... 详细信息

ISBN: (纸本)9781424425143

关键词： burst correction parallel decoding cyclic codes

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ESPRESSO: A FAST END-TO-END NEURAL SPEECH RECOGNITION TOOLKIT

ESPRESSO: A FAST END-TO-END NEURAL SPEECH RECOGNITION TOOLKI...

引用

IEEE Automatic Speech Recognition and Understanding Workshop (ASRU)

作者： Wang, Yiming Chen, Tongfei Xu, Hainan Ding, Shuoyang Lv, Hang Shao, Yiwen Peng, Nanyun Xie, Lei Watanabe, Shinji Khudanpur, Sanjeev Johns Hopkins Univ Ctr Language & Speech Proc Baltimore MD 21218 USA Johns Hopkins Univ Human Language Technol Ctr Excellence Baltimore MD USA Univ Southern Calif Informat Sci Inst Los Angeles CA 90007 USA Northwestern Polytech Univ Sch Comp Sci ASLP NPU Xian Peoples R China

ISBN: (纸本)9781728103068

We present ESPRESSO, an open-source, modular, extensible end-to-end neural automatic speech recognition (ASR) toolkit based on the deep learning library PyTorch and the popular neural machine translation toolkit FAIRSEQ. ESPRESSO supports distributed training across GPUs and computing nodes, and features various decoding approaches commonly employed in ASR, including look-ahead word-based language model fusion, for which a fast, parallelized decoder is implemented. ESPRESSO achieves state-of-the-art ASR performance on the WSJ, LibriSpeech, and Switchboard data sets among other end-to-end systems without data augmentation, and is 4-11 degrees faster for decoding than similar systems (e.g. ESPNET).

关键词： automatic speech recognition end-to-end parallel decoding language model fusion

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Research on Low Latency decoding Scheme of Turbo Codes

Research on Low Latency Decoding Scheme of Turbo Codes

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International Conference on Wireless Communication and Sensor Network (WCSN)

作者： Liu, Jie Zhang, Li-min Zhong, Zhao-gen Naval Aeronaut & Astronaut Univ Dept Elect Informat Engn Yantai Peoples R China

ISBN: (纸本)9781479970919

To reduce the computational complexity and latency of Turbo decoding, a new decoding scheme is proposed. Firstly, the Max-Log-MAP algorithm is modified to improve performance while guarantee the calculation simplicity at the same time. Then, the parallel decoding scheme was introduced, and an improvement is made so that the two SISO decoders can work at the same time. The simulation results show that the performance of Max-Log-MAP algorithm improves 0.1 similar to 0.4 dB. Besides, the change of decoding structure doesn't bring extra iterations, while decoding latency per iteration decreases, the whole system is surely more real-time.

关键词： turbo codes Max-Log-MAP parallel decoding

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Improving Entity Disambiguation Using Knowledge Graph Regularization 1

引用

26th Pacific-Asia Conference on Knowledge Discovery and Data Mining (PAKDD)

作者： Tam, Zhi-Rui Wu, Yi-Lun Shuai, Hong-Han Natl Yang Ming Chiao Tung Univ Taipei Taiwan

ISBN: (数字)9783031059339

ISBN: (纸本)9783031059339;9783031059322

Entity disambiguation plays the role on bridging between words of interest from an input text document and unique entities in a target Knowledge Base (KB). In this study, to address the challenges of global entity disambiguation, we proposed Conditional Masked Entity Model Using Knowledge Graph Regularization (CMEM-KG), based on a conditional masked language model, in which multiple mentions in a context can be disambiguated in one forward pass. In addition, to address the long-tailed distribution of global entity disambiguation, we proposed a link prediction regularization, in which the entity embeddings were jointly learned to predict knowledge graph links to prevent the model from overfitting. Compared to other global entity disambiguation models, the model proposed in this study exhibited improved performance on six public datasets without an iterative decoding.

关键词： Entity disambiguation parallel decoding

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Improvements in the data fidelity of photorefractive memories

Improvements in the data fidelity of photorefractive memorie...

引用

Conference on Photorefractive Fiber and Crystal Devices - Materials, Optical Properties, and Applications

作者： NEIFELD, MA UNIV ARIZONA CTR OPT SCIDEPT ELECT & COMP ENGNTUCSONAZ 85721

ISBN: (纸本)0819418889

parallel error decoding is discussed for 2D page access optical memory. Both parallel space- domain and parallel spectral-domain Reed-Solomon decoders are discussed and compared with conventional serial decoding implementations. The parallel approach is found to yield information rates of nearly 10¹² bps. A methodology is also presented for 4f optical storage system design. This approach allows the photorefractive crystal volume to be minimized while maintaining the maximum storage capacity that is consistent with a given SNR requirement.

关键词： PHOTOREFRACTIVES HOLOGRAPHIC STORAGE OPTICAL MEMORY ERROR CORRECTION parallel ACCESS parallel decoding OPTICAL DESIGN

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A Contention-free Memory Subsystem for 5G Turbo Decoder with Flexible Degree of parallelism

A Contention-free Memory Subsystem for 5G Turbo Decoder with...

引用

IEEE International Workshop on Signal Processing Systems (SiPS)

作者： Wu, Zhenzhi Liu, Dake Li, Xiaoyang Gong, Chen Beijing Inst Technol Sch Informat & Elect Beijing 100081 Peoples R China

ISBN: (纸本)9781467396042

In 5G communications, to meet the higher throughput requirement of Turbo decoding, Quadratic Permutation Polynomial (QPP) interleaver is adopted for contention-free parallel memory access. However, with the intrinsic attribute of QPP interleaver, the contention-free memory access is achieved only when the codeword length is divisible by the degree of parallelism (P), which leads the selection of P be rather inflexible especially when P is high. In this paper, we present a novel contention-free solution by introducing dual memory access and parallel window dynamic alignment. The proposed method provides more choices of contention- free parallelism. It offers throughput improvements for high parallelism (P>64) decoders with 3GPP LTE-A configurations, and also enables more P selections for QPP-interleaving Turbo decoders.

关键词： Turbo contention-free parallel decoding

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Efficient Non-Recursive Design of Second-Order Spectral-Null Codes

Efficient Non-Recursive Design of Second-Order Spectral-Null...

引用

IEEE Transactions on Information Theory

作者： Tallini, Luca G. Pelusi, Danilo Mascella, Raffaele Pezza, Laura Elmougy, Samir Bose, Bella Facoltà di Scienze della Comunicazione Università degli Studi di Teramo Teramo64100 Italy Dipartimento di Scienze di Base e Applicate per l'Ingegneria Università degli Studi di Roma la Sapienza Rome00161 Italy Department of Computer Science Faculty of Computers and Information Mansoura University Mansoura35516 Egypt Department of Computer Science College of Computer and Information Sciences King Saud University Riyadh11543 Saudi Arabia School of Electrical Engineering and Computer Science Oregon State University CorvallisOR97331 United States

A new efficient design of second-order spectralnull (2-OSN) codes is presented. The new codes are obtained by applying the technique used to design parallel decoding balanced (i.e., 1-OSN) codes to the random walk method introduced by some of the authors for designing 2-OSN codes. This gives new non-recursive efficient code designs, which are less redundant than the code designs found in the literature. In particular, if k ∈ IN is the length of a 1-OSN code then the new 2-OSN coding scheme has length n = k + r ∈ IN with an extra redundancy of r 2 log2k + (1/2) log2log2k-0.174 check bits, with k and r even and n multiple of 4. The whole coding process requires O(k log k) bit operations and O(k) bit memory elements. © 2016 IEEE.

关键词： Design decoding Balanced code Complementation Efficient designs High order spectral null codes parallel decoding Random walk method Recursive design Spectral null codes

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