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中文文本自动校错系统中知识库及其构造方法研究 被引量:3
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作者 张仰森 曹元大 徐波 《小型微型计算机系统》 CSCD 北大核心 2004年第12期2237-2242,共6页
阐述了在中文文本校错系统研究和实现过程中 ,面向文本错误查找与纠错建议产生的语言知识获取及知识库构建的思想及其实现算法 .针对数据稀疏问题探讨了查错知识库的存取技术 ,针对不同错误源 ,重点研究了相似码词典、字驱动双向词典和... 阐述了在中文文本校错系统研究和实现过程中 ,面向文本错误查找与纠错建议产生的语言知识获取及知识库构建的思想及其实现算法 .针对数据稀疏问题探讨了查错知识库的存取技术 ,针对不同错误源 ,重点研究了相似码词典、字驱动双向词典和骨架键词典的构造方法 .基于所构建的知识库而实现的中文文本校错系统 。 展开更多
关键词 知识获取 知识库 知识库 自动校错系统
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试析“校错” 被引量:1
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作者 张先瑞 《编辑之友》 北大核心 2000年第4期43-44,共2页
关键词 编辑工作 校错 出版
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校错如雠亦风流——校勘生涯五十五个春秋记略 被引量:1
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作者 孔祥光 《今传媒》 1999年第1期23-,22,共2页
校对,并不是简单的劳动,而是一种复杂自有其规律的智力劳动。校对学,是一门重要学问,是一种拥有相当规模的专业。我国历来重视校对工作,从事校对及其理论研究的多是学者或有学问的文官。春秋时代,孔子的学生夏首先勘出“三豕渡河... 校对,并不是简单的劳动,而是一种复杂自有其规律的智力劳动。校对学,是一门重要学问,是一种拥有相当规模的专业。我国历来重视校对工作,从事校对及其理论研究的多是学者或有学问的文官。春秋时代,孔子的学生夏首先勘出“三豕渡河”应为“乙亥渡河”,并被尊为校对的... 展开更多
关键词 对工作 对理论 校错 森林害虫 《通志·雠略》 华人学者 雠通义》 恶劣影响 编辑工作 原稿
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计算机校错中断剖析
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作者 张海林 《计算技术与自动化》 1994年第2期43-46,52,共5页
本文首先介绍计算机系统发生差错或故障时所产生的校错中断(MCK)的类型,MCK扩展中断信息以及任用中断码MCIC的有关内容。最后对一个MCK处理流程作了说细的分析与说明。
关键词 校错中断 计算机 故障
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1995年高校出版社优秀畅销书奖外语类参评图书编校错误评析
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作者 郭力 《现代出版》 1996年第2期35-35,共1页
1995年高校出版社优秀畅销书奖外语类参评图书编校错误评析郭力1995年全国高校出版社优秀畅销书奖评奖已经结束,外语类图书有14种参评,7种得奖。在评奖过程中,评委对每本参评的书进行了编校质量检查,发现这些书中或多或... 1995年高校出版社优秀畅销书奖外语类参评图书编校错误评析郭力1995年全国高校出版社优秀畅销书奖评奖已经结束,外语类图书有14种参评,7种得奖。在评奖过程中,评委对每本参评的书进行了编校质量检查,发现这些书中或多或少都存在一些编校质量方面的问题。本... 展开更多
关键词 出版社 参评图书 畅销书 外语类图书 校错 1995年 质量 外语水平 阿尔卑斯山 微型计算机
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常见图书编校错误分类(下) 被引量:1
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作者 尤建忠 《科技与出版》 CSSCI 1996年第4期19-20,共2页
常见图书编校错误分类(下)浙江大学出版社尤建忠4公式错误公式错误除了公式本身在科学上不成立外,大多数错误是由疏忽引起。如有左大括号,无右大括号;有右中括号,无左中括号;缺分数线;数字计算错误;公式中为Rm,下面公式... 常见图书编校错误分类(下)浙江大学出版社尤建忠4公式错误公式错误除了公式本身在科学上不成立外,大多数错误是由疏忽引起。如有左大括号,无右大括号;有右中括号,无左中括号;缺分数线;数字计算错误;公式中为Rm,下面公式中符号说明为R,少了下标;公式因错... 展开更多
关键词 误分类 《图书书名页》 校错 编辑工作 国家标准 标点 图书在版编目数据 社会主义市场经济体制 破折号 经济效益指标
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编辑寄语
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作者 本刊编辑部 《张家口职业技术学院学报》 1997年第Z1期54-54,共1页
这期刊物即将付印之际,忽然意识到,从创刊至今,我们已经走过了整整十年的路程。 蓦然回首,我们汗颜:有影响、有价值的文章发表的寥寥,编校错误时有发生,相当数量的低质量文稿混杂其中…… 细细咀嚼,我们又颇感慰籍:在这喧嚣的十年,是我... 这期刊物即将付印之际,忽然意识到,从创刊至今,我们已经走过了整整十年的路程。 蓦然回首,我们汗颜:有影响、有价值的文章发表的寥寥,编校错误时有发生,相当数量的低质量文稿混杂其中…… 细细咀嚼,我们又颇感慰籍:在这喧嚣的十年,是我们,守住了这块阵地。代价是艰辛、清贫和寂寞,还有那么多的无奈。 展开更多
关键词 地方高学报 期刊物 恰当定位 理应如此 校错 编辑部 意识到 低质量 误时 路程
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地面观测原始记录典型问题归类分析
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作者 杨多翠 《陕西气象》 2001年第1期38-40,共3页
关键词 地面观测 原始记录 自记纸整理 校错 订正 误读 统计 操作
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Information loss recovery for JPEG2000 image transmission in an error-prone environment
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作者 刘洁瑜 张德运 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2008年第3期430-435,共6页
Information loss recovery techniques are important for transmitting images over error-prone channels at the decoder. A novel error recovery scheme for JPEG2000 image is presented in this paper, which adopts different ... Information loss recovery techniques are important for transmitting images over error-prone channels at the decoder. A novel error recovery scheme for JPEG2000 image is presented in this paper, which adopts different techniques for the lowest frequency coefficients and high frequency coefficients in the wavelet domain. The low-frequency recovery algorithm was implemented by adopting the watermarking technique and the packet structure of JPEG2000. The low-frequency eoefficients taken as the hidden data were extracted from the compressed bit stream, and then were embedded back into the bit stream itself prior to transmission. The embedded data were used to recover the information loss. High-frequency reconstruction was performed in bitplane base. The damaged bitplanes were recovered according to the correlation in the wavelet subband structure and by using the algorithm based on the horizontal and vertical edge detection. Experiments verified the effectiveness of these algorithms. 展开更多
关键词 JPEG2000 error recovery image transmission bitplane
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Spectroscopic Parameters of X^3∑^-, a^1△, and A^'3△ Electronic States of SO Radical
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作者 Jie-min Wang Heng-qiang Feng +2 位作者 Jin-feng Sun De-heng Shi Zun-lue Zhu 《Chinese Journal of Chemical Physics》 SCIE CAS CSCD 2012年第5期533-539,I0003,共8页
The potential energy curves (PECs) of three low-lying electronic states (X^3∑, a^1△, and a^3△) of SO radical have been studied by ab initio quantum chemical method. The calcula- tions were carried out with the ... The potential energy curves (PECs) of three low-lying electronic states (X^3∑, a^1△, and a^3△) of SO radical have been studied by ab initio quantum chemical method. The calcula- tions were carried out with the full valence complete active space self-consistent field method followed by the highly accurate valence internally contracted multireference configuration in- teraction (MRCI) approach in combination with correlation-consistent basis sets. Effects of the core-valence correlation and relativistic corrections on the PECs are taken into account. The core-valence correlation correction is carried out with the cc-pCVDZ basis set. The way to consider the relativistic correction is to use the second-order Douglas-Kroll Hamiltonian approximation, and the correction is performed at the level of cc-pV5Z basis set. To obtain more reliable results, the PECs determined by the MRCI calculations are also corrected for size-extensivity errors by means of the Davidson modification (MRCI+Q). These PECs are extrapolated to the complete basis set limit by the two-point energy extrapolation scheme. With these PECs, the spectroscopic parameters are determined. 展开更多
关键词 Spectroscopic parameter Core-valence correlation Relativistic correction EXTRAPOLATION
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Multiple-Symbol Interleaved RS Codes and Two-Pass Decoding Algorithm
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作者 WANG Zhongfeng Ahmad Chini +1 位作者 Mehdi T.Kilani ZHOU Jun 《China Communications》 SCIE CSCD 2016年第4期14-19,共6页
For communication systems with heavy burst noise, an optimal Forward Error Correction(FEC) scheme is expected to have a large burst error correction capability while simultaneously owning moderate random error correct... For communication systems with heavy burst noise, an optimal Forward Error Correction(FEC) scheme is expected to have a large burst error correction capability while simultaneously owning moderate random error correction capability. This letter presents a new FEC scheme based on multiple-symbol interleaved Reed-Solomon codes and an associated two-pass decoding algorithm. It is shown that the proposed multi-symbol interleaved Reed-Solomon scheme can achieve nearly twice as much as the burst error correction capability of conventional single-symbol interleaved Reed-Solomon codes with the same code length and code rate. 展开更多
关键词 burst error erasure decoding FEC interleaved Reed-Solomon codes
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JOINT LLR-CRC ERROR MITIGATION FOR TWO-WAY ADAPTIVE DENOISE-AND-FORWARD NETWORK CODING
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作者 Cheng Yulun Yang Longxiang 《Journal of Electronics(China)》 2013年第4期352-361,共10页
Network Coding (NC) brings correlation between the coded signals from different sources, which makes the system more vulnerable to the decode error at relay. Conventional Cyclic Redundancy Code (CRC) has been implemen... Network Coding (NC) brings correlation between the coded signals from different sources, which makes the system more vulnerable to the decode error at relay. Conventional Cyclic Redundancy Code (CRC) has been implemented for error bit detection. However, its error correction is simply ignored. To fully exploit this feature, this paper proposes a novel joint Log-Likelihood Ratio (LLR) CRC error mitigation for NC two way relay channel. Specific thresholds are designed to estimate the error number of data block and identify those which can be recovered if the number is within the error correction scope of CRC. We examine two modes of the thresholds, one based on the average Bit Error Rate (BER) of source-relay link, while the other based on that of instantaneous one. We provide the full analysis for the Pair-wise Error Probability (PEP) performance of the scheme. A variety of numerical results are presented to reveal the superiority of the proposed scheme to conventional CRC NC under independent Rayleigh fading channels. Moreover, the efficiencies of the proposed thresholds are also validated. 展开更多
关键词 Network Coding (NC) Log-Likelihood Ratio (LLR) Cyclic Redundancy Code (CRC) Denoise-and-forward Pair-wise Error Probability (PEP)
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A Joint Encryption and Error Correction Method Used in Satellite Communications 被引量:3
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作者 LINing LIN Kanfeng LIN Wenliang DENG Zhongliang 《China Communications》 SCIE CSCD 2014年第3期70-79,共10页
Due to the ubiquitous open air links and complex electromagnetic environment in the satellite communications,how to ensure the security and reliability of the information through the satellite communications is an urg... Due to the ubiquitous open air links and complex electromagnetic environment in the satellite communications,how to ensure the security and reliability of the information through the satellite communications is an urgent problem.This paper combines the AES(Advanced Encryption Standard) with LDPC(Low Density Parity Check Code) to design a secure and reliable error correction method — SEEC(Satellite Encryption and Error Correction).This method selects the LDPC codes,which is suitable for satellite communications,and uses the AES round key to control the encoding process,at the same time,proposes a new algorithm of round key generation.Based on a fairly good property in error correction in satellite communications,the method improves the security of the system,achieves a shorter key size,and then makes the key management easier.Eventually,the method shows a great error correction capability and encryption effect by the MATLAB simulation. 展开更多
关键词 data encryption error correctingcipher advanced encryption standard LDPCchannel coding satellite communications
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Fault Diagnosis and Phase Disposition Reconfiguration of a 5-Level Double-Boost Power Factor Corrector with Fault-Tolerant Capability
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作者 Thi Thuy Linh Pham Frederic Richardeau Guillaume Gateau 《Journal of Energy and Power Engineering》 2012年第3期418-424,共7页
A 5-level PFC (power factor correction) topology with fault-diagnostic and fault-tolerant capability is proposed and compared to known structures. It is derived from a 3-level non differential double-boost PFC inclu... A 5-level PFC (power factor correction) topology with fault-diagnostic and fault-tolerant capability is proposed and compared to known structures. It is derived from a 3-level non differential double-boost PFC including fly-cap cells. The series-connection of the two low-voltage switching-cells is decoupled by a single flying capacitor that provides a direct fault-tolerant capability and a post-failure operation increasing the availability of converter. The monitoring of the voltages across flying capacitors allows a rapid detection and localization either for open circuit failure or short-circuits failure. A PWM (pulse width modulation) phase-disposition type reconfiguration is also used and presented in order to optimize both normal operation and post-fault continuation. The design and the most important features are highlighted thanks to a digital control frame and a mock-up rated to: AC voltage network 115 V-load 400 V-nominal power 4 kW-switching frequency 62 kHz. 展开更多
关键词 PFC (power factor correction) multilevel converter fault tolerant capability diagnosis.
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Remedial Learning: A CALL Approach
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作者 Karthika Premkumar 《Sino-US English Teaching》 2014年第9期672-681,共10页
Computer Assisted Language Learning (CALL) has been in use as a learner centered method since 1960. In this paper an attempt is made to evolve a Remedial Grammar (RG) which enables the teacher to develop a reperto... Computer Assisted Language Learning (CALL) has been in use as a learner centered method since 1960. In this paper an attempt is made to evolve a Remedial Grammar (RG) which enables the teacher to develop a repertoire of remedial activities based on the errors identified following Error Analysis (EA) for repeated presentation. The error types are considered as teaching/learning points. The present paper argues that CALL is the right model for effective remedial learning. Remedial Gmaster (RGm), an authoring package is introduced. This is an exclusive mode of error correction in which interlingual, intralingual, developmental, and global errors are dealt with. The syntactical problems due to the subtle difference between simple past and perfect tenses in English language use are discussed and CALL authoring package presented. 展开更多
关键词 authoring package Remedial Gmaster Remedial Grammar Remedial syllabus repeated presentation repertoire of learning activities
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SAR motion compensation based on the correction of residual attitude errors 被引量:3
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作者 NI Chong WANG YanFei +1 位作者 XU XiangHui ZHOU ChangYi 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS 2011年第10期1899-1905,共7页
As residual attitude errors are likely to affect the synthetic aperture radar (SAR) imaging, this paper presents a SAR motioncompensation algorithm based on the correction of residual attitude errors. The existing met... As residual attitude errors are likely to affect the synthetic aperture radar (SAR) imaging, this paper presents a SAR motioncompensation algorithm based on the correction of residual attitude errors. The existing methods all use the antenna stableplatform to correct the attitude errors, and then compensate the trajectory deviations in the following imaging process. Besidescompensating the trajectory deviations, the modified method of this paper also considers the influence of residual attitude er-rors on the SAR imaging, and can compensate both the trajectory deviations and the residual attitude errors. Compared withthe existing methods, the modified method in this paper can more precisely compensate the imperfect motion on the SAR im-aging, especially good for the SAR system with a small platform, near operating distance and a narrow antenna beam. Such asystem causes severe residual attitude errors and needs to consider the influence of antenna beam pointing errors on the imag-ing. The validity of the modified method presented by this paper is demonstrated by the result of the experiment. 展开更多
关键词 synthetic aperture radar residual attitude errors motion compensation
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Unitary Application of the Quantum Error Correction Codes 被引量:1
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作者 游波 许可 吴小华 《Communications in Theoretical Physics》 SCIE CAS CSCD 2012年第9期377-380,共4页
For applying the perfect code to transmit quantum information over a noise channel,the standard protocol contains four steps:the encoding,the noise channel,the error-correction operation,and the decoding.In present wo... For applying the perfect code to transmit quantum information over a noise channel,the standard protocol contains four steps:the encoding,the noise channel,the error-correction operation,and the decoding.In present work,we show that this protocol can be simplified.The error-correction operation is not necessary if the decoding is realized by the so-called complete unitary transformation.We also offer a quantum circuit,which can correct the arbitrary single-qubit errors. 展开更多
关键词 standard quantum error correction complete unitary transformation quantum circuit
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High-efficiency Gaussian key reconciliation in continuous variable quantum key distribution 被引量:2
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作者 ZengLiang Bai XuYang Wang +1 位作者 ShenShen Yang YongMin Li 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS CSCD 2016年第1期53-57,共5页
Efficient reconciliation is a crucial step in continuous variable quantum key distribution. The progressive-edge-growth(PEG) algorithm is an efficient method to construct relatively short block length low-density pari... Efficient reconciliation is a crucial step in continuous variable quantum key distribution. The progressive-edge-growth(PEG) algorithm is an efficient method to construct relatively short block length low-density parity-check(LDPC) codes. The qua-sicyclic construction method can extend short block length codes and further eliminate the shortest cycle. In this paper, by combining the PEG algorithm and quasi-cyclic construction method, we design long block length irregular LDPC codes with high error-correcting capacity. Based on these LDPC codes, we achieve high-efficiency Gaussian key reconciliation with slice recon-ciliation based on multilevel coding/multistage decoding with an efficiency of 93.7%. 展开更多
关键词 Gaussian key reconciliation irregular LDPC codes progressive-edge-growth quasi-cyclic construction method
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