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A Harmonic Approach to Handwriting Style Synthesis Using Deep Learning
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作者 Mahatir Ahmed Tusher Saket Choudary Kongara +2 位作者 Sagar Dhanraj Pande Seong Ki Kim Salil Bharany 《Computers, Materials & Continua》 SCIE EI 2024年第6期4063-4080,共18页
The challenging task of handwriting style synthesis requires capturing the individuality and diversity of human handwriting.The majority of currently available methods use either a generative adversarial network(GAN)o... The challenging task of handwriting style synthesis requires capturing the individuality and diversity of human handwriting.The majority of currently available methods use either a generative adversarial network(GAN)or a recurrent neural network(RNN)to generate new handwriting styles.This is why these techniques frequently fall short of producing diverse and realistic text pictures,particularly for terms that are not commonly used.To resolve that,this research proposes a novel deep learning model that consists of a style encoder and a text generator to synthesize different handwriting styles.This network excels in generating conditional text by extracting style vectors from a series of style images.The model performs admirably on a range of handwriting synthesis tasks,including the production of text that is out-of-vocabulary.It works more effectively than previous approaches by displaying lower values on key Generative Adversarial Network evaluation metrics,such Geometric Score(GS)(3.21×10^(-5))and Fréchet Inception Distance(FID)(8.75),as well as text recognition metrics,like Character Error Rate(CER)and Word Error Rate(WER).A thorough component analysis revealed the steady improvement in image production quality,highlighting the importance of specific handwriting styles.Applicable fields include digital forensics,creative writing,and document security. 展开更多
关键词 Recurrent neural network generative adversarial network style encoder fréchet inception distance geometric score character error rate mixture density network word error rate
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Interlingual Interference in the English Language Word Order Structure of Chinese EFL Learners 被引量:1
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作者 张俊杰 《海外英语》 2020年第14期109-110,共2页
This paper will focus on some common word order errors that Chinese students make.The author will present a body of contrastive material to illustrate what specific word order errors are in collected writing samples o... This paper will focus on some common word order errors that Chinese students make.The author will present a body of contrastive material to illustrate what specific word order errors are in collected writing samples of Chinese students.Then the er⁃rors will be broken down into certain error types and be analyzed in depth.At the end of this paper,each error type occurrence rate will be calculated and the statistics will be represented in a pie chart.The paper finds out interlingual interference leads to these common errors by Chinese English language learners. 展开更多
关键词 interlingual interference English writing word order errors
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Enhanced Marathi Speech Recognition Facilitated by Grasshopper Optimisation-Based Recurrent Neural Network
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作者 Ravindra Parshuram Bachate Ashok Sharma +3 位作者 Amar Singh Ayman AAly Abdulaziz HAlghtani Dac-Nhuong Le 《Computer Systems Science & Engineering》 SCIE EI 2022年第11期439-454,共16页
Communication is a significant part of being human and living in the world.Diverse kinds of languages and their variations are there;thus,one person can speak any language and cannot effectively communicate with one w... Communication is a significant part of being human and living in the world.Diverse kinds of languages and their variations are there;thus,one person can speak any language and cannot effectively communicate with one who speaks that language in a different accent.Numerous application fields such as education,mobility,smart systems,security,and health care systems utilize the speech or voice recognition models abundantly.Though,various studies are focused on the Arabic or Asian and English languages by ignoring other significant languages like Marathi that leads to the broader research motivations in regional languages.It is necessary to understand the speech recognition field,in which the major concentrated stages are feature extraction and classification.This paper emphasis developing a Speech Recognition model for the Marathi language by optimizing Recurrent Neural Network(RNN).Here,the preprocessing of the input signal is performed by smoothing and median filtering.After preprocessing the feature extraction is carried out using MFCC and Spectral features to get precise features from the input Marathi Speech corpus.The optimized RNN classifier is used for speech recognition after completing the feature extraction task,where the optimization of hidden neurons in RNN is performed by the Grasshopper Optimization Algorithm(GOA).Finally,the comparison with the conventional techniques has shown that the proposed model outperforms most competing models on a benchmark dataset. 展开更多
关键词 Deep learning grasshopper optimization algorithm recurrent neural network speech recognition word error rate
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EFFICIENT DESIGN OF ANTI-JAMMING RATELESS CODING IN COGNITIVE OFDM
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作者 Xu Xiaorong Zhang Jianwu +1 位作者 Zheng Baoyu Yan Junrong 《Journal of Electronics(China)》 2010年第6期781-789,共9页
Efficient anti-jamming rateless coding based on cognitive Orthogonal Frequency Division Multiplexing (OFDM) modulation in Cognitive Radio Network (CRN) is mainly discussed. Rateless coding with small redundancy and lo... Efficient anti-jamming rateless coding based on cognitive Orthogonal Frequency Division Multiplexing (OFDM) modulation in Cognitive Radio Network (CRN) is mainly discussed. Rateless coding with small redundancy and low complexity is presented, and the optimal design methods of building rateless codes are also proposed. In CRN, anti-jamming rateless coding could recover the lost packets in parallel channels of cognitive OFDM, thus it protects Secondary Users (SUs) from the in-terference by Primary Users (PUs) efficiently. Frame Error Rate (FER) and throughput performance of SU employing anti-jamming rateless coding are analyzed in detail. Performance comparison between rateless coding and piecewise coding are also presented. It is shown that, anti-jamming rateless coding provides low FER and Word Error Rate (WER) performance with uniform sub-channel selection. Meanwhile, it is also verified that, in higher jamming rate and longer code redundancy scenario, rateless coding method could achieve better FER and throughput performance than another anti-jamming coding schemes. 展开更多
关键词 Anti-jamming rateless coding Cognitive Orthogonal Frequency Division Multiplexing (OFDM) Frame Error Rate (FER) Word Error Rate (WER) Throughput performance
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Limited Spatial Transferability of the Relationships Between Kriging Variance and Soil Sampling Spacing in Some Grasslands of Ireland:Implications for Sampling Design 被引量:3
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作者 SUN Xiaolin WANG Huili +3 位作者 Dermot FORRISTAL FU Weijun Hubert TUNNEY Chaosheng ZHANG 《Pedosphere》 SCIE CAS CSCD 2019年第5期577-589,共13页
Sampling plays an important role in acquiring precise soil information required in modern agricultural production worldwide, which determines both the cost and quality of final soil mapping products. For sampling desi... Sampling plays an important role in acquiring precise soil information required in modern agricultural production worldwide, which determines both the cost and quality of final soil mapping products. For sampling design, it has been proposed possibile to transfer the relationships between kriging variance and sampling grid spacing from an area with existing information to other areas with similar soil-forming environments. However, this approach is challenged in practice because of two problems: i) different population vaxiograms among similar areas and ii) sampling errors in estimated variograms. This study evaluated the effects of these two problems on the transferability of the relationships between kriging variance and sampling grid spacing, by using spatial data simulated with three variograms and soil samples collected from four grasslands in Ireland with similar soil-forming environments. Results showed that the variograms suggested by different samples collected with the same grid spacing in the same or similar areas were different, leading to a range of mean kriging variance (MKV) for each grid spacing. With increasing grid spacing, the variation of MKV for a specific grid spacing increased and deviated more from the MKV generated using the population variograms. As a result, the spatial transferability of the relationships between kriging variance and grid spacing for sampling design was limited. 展开更多
关键词 Key words. geostatistics population variogram sampling error sampling grid spacing soil-forming environment soil information soil mapping spatial variability
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Energy efficient HARQ scheme for wireless communication over block fading channel
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作者 Wu Yue Yang Hongwen 《The Journal of China Universities of Posts and Telecommunications》 EI CSCD 2015年第3期35-40,共6页
Energy efficiency (EE) can be enhanced by retransmissions and combining in hybrid automatic repeat request (HARQ) system. However, it is difficult to optimize the transmit power of each retransmission when the acc... Energy efficiency (EE) can be enhanced by retransmissions and combining in hybrid automatic repeat request (HARQ) system. However, it is difficult to optimize the transmit power of each retransmission when the accurate retransmission number and future channel state information (CSI) cannot be obtained. This paper proposes a simple energy efficient HARQ scheme for point-to-point wireless communication. In the proposed scheme, the conditional word error rate (WER) of each retransmission is fixed and the transmit power is adapted correspondingly. Three performance metrics are analyzed including average transmission number, throughput and EE. Compared with the conventional equal power HARQ scheme, the proposed scheme can significantly improve the EE and other two metrics under the same constraint of average transmit power or average energy consumption. Furthermore, it is found that, selecting a conditional WER which is slightly smaller than the optimal one is sufficient for practical implementation. 展开更多
关键词 Energy efficiency hybrid automatic repeat request (HARQ) conditional word error rate
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