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Integrating Pronunciation into Chinese-Vietnamese Statistical Machine Translation

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Tsinghua Science and Technology 2018年第6期23卷 715-723页

作者： Anh Tran Huu Heyan Huang yuhang guo Shumin Shi Ping Jian Department of ComputerScience and Technology Beijing Institute of TechnologyBeijing 100081 China

Statistical machine translation for low-resource language suffers from the lack of abundant training corpora. Several methods, such as the use of a pivot language, have been proposed as a bridge to translate from one language to another. However, errors will accumulate during the extensive translation pipelines. In this paper, we propose an approach to low-resource language translation by exploiting the pronunciation correlations between languages. We find that the pronunciation features can improve both Chinese-Vietnamese and Vietnamese- Chinese translation qualities. Experimental results show that our proposed model yields effective improvements, and the translation performance （bilingual evaluation understudy score） is improved by a maximum value of 1.03.

关键词： pronunciation integration low-resource languages Chinese-Vietnamese machine translation Sino-Vietnamese words

Sliding modes of fault activation under constant normal stiffness conditions

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Journal of Rock Mechanics and Geotechnical Engineering 2023年第5期15卷 1213-1225页

作者： Chuanqing Zhang Jie Xu Shengji Jin guojian Cui yuhang guo Lingyu Li State Key Laboratory of Geomechanics and Geotechnical Engineering Institute of Rock and Soil MechanicsChinese Academy of SciencesWuhan430071China University of Chinese Academy of Sciences Beijing100049China Shenyang University of Technology Shenyang110870China

Fault activation has been the focus of research community for ***,the studies of fault activation remain immature,such as the fault activation mode and its major factors under constant normal stiffness(CNS)conditions associated with large thickness of fault surrounding rock *** this study,the rock friction experiments were conducted to understand the fault activation modes under the CNS *** major parameters,*** initial normal stress and loading rate,were considered and calibrated in the *** reveal the response mechanism of fault activation,the local strains near the fault plane were recorded,and the macroscopic stresses and displacements were *** testing results show that the effect of displacement-controlled loading rate is more pronounced under the CNS conditions than that under constant normal load(CNL)*** the normal and shear stresses drop suddenly when the stick-slip *** decrease and increase of the normal stress are synchronous with the shear stress in the regular stick-slip scenario,but mismatch with the shear stress during the chaotic stick-slip *** results are helpful for understanding the fault sliding mode and the prediction and prevention of fault slip.

关键词： Fault activation Rock friction mechanics Sliding modes Constant normal stiffness(CNS) Displacement-controlled loading rates Rockburst

Design and experiment of the key components of the seeding monomer for high-speed corn no-till seeders

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International Journal of Agricultural and Biological Engineering 2023年第5期16卷 95-103页

作者： Yongliang Chen Hairong Jing Zhe Zhang yuhang guo Xiaofeng Ning College of Engineering Shenyang Agricultural UniversityShenyang 110866China Key Laboratory of Modern Horticultural Equipment Ministry of Agriculture and Rural AffairsShenyang 110866China Heilongjiang Dewo Technology Development Co. LTDHarbin 150081China

Aiming at the problems of uneven plant spacing,row spacing and sowing depth due to the collision of seeds with the tube wall or bouncing on the floor of the seed guide tube with the increase of operation speed of the current corn no-till planter,in this study,the high-speed seed belt technology was combined with the finger clip seed discharge device,a kind of high-speed no-till planter monomer was designed and installed in high-speed seed *** the same time,simulation analysis was made on the movement law of seeds in the seed guide tube when they fell from the finger clip seeder and the main structural parameters and the range of key parameters of the high-speed seed tube were *** the prototype,the single-factor and quadratic orthogonal rotational combination test method,and the machine operating speed,the height of the high-speed seed tube and the seed guide angle were selected as the test factors in the seeding performance *** parameter optimization,the optimal working parameters were determined:the machine forward speed was 12.18 km/h,the height of the high-speed seed tube from the ground was 42.22 mm,and the seed guide angle of the high-speed seed tube was 8.82°.The field test verified that under this parameter combination,the qualified-seeding index was 94.95%,the multiple-seeding index was 2.37%,and the missing-seeding index was 2.48%,showing stable working performance and satisfied the sowing and agronomic requirements of the no-till seeding operation.

关键词： no-till planter seeding monomer high-speed seed tube field test

Improving Parallel Corpus Quality for Chinese-Vietnamese Statistical Machine Translation

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Journal of Beijing Institute of Technology 2018年第1期27卷 127-136页

作者： Huu-anh Tran yuhang guo Ping Jian Shumin Shi Heyan Huang Department of Computer Science and Technology Beijing Institute of Technology Beijing Engineering Research Center of High Volume Language Information Processing and Cloud Computing Application Beijing Institute of Technology

The performance of a machine translation system heavily depends on the quantity and quality of the bilingual language resource. However,getting a parallel corpus,which has a large scale and is of high quality,is a very difficult task especially for low resource languages such as Chinese-Vietnamese. Fortunately,multilingual user generated contents（ UGC）,such as bilingual movie subtitles,provide us access to automatic construction of the parallel corpus. Although the amount of UGC parallel corpora can be considerable,the original corpus is not suitable for statistical machine translation（ SMT） systems. The corpus may contain translation errors,sentence mismatching,free translations,etc. To improve the quality of the bilingual corpus for SMT systems,three filtering methods are proposed： sentence length difference,the semantic of sentence pairs,and machine learning. Experiments are conducted on the Chinese to Vietnamese translation *** results demonstrate that all the three methods effectively improve the corpus quality,and the machine translation performance（ BLEU score） can be improved by 1. 32.

关键词： parallel corpus filtering low resource languages bilingual movie subtitles machine translation Chinese-Vietnamese translation

Topographic variation and fluid flow characteristics in rough contact interface

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Friction 2024年第12期12卷 2774-2790页

作者： Jiawei JI Wei SUN Yu DU Yongqing ZHU yuhang guo Xiaojun LIU Yunlong JIAO Kun LIU Institute of Tribology School of Mechanical EngineeringHefei University of TechnologyHefei 230009China

Understanding flow characteristics of fluid near rough contact is important for the design of fluid-based lubrication and basic of tribology *** this study,the spreading and seepage processes of anhydrous ethanol in the interface between glass and rough PDMS are observed by a homemade optical in-situ *** image processing technology and numerical simulation software are adapted to identify and extract the topological properties of interface and thin fluid flow *** attention is paid to the dynamic evolution of the contact interface morphology under different stresses,the distribution of microchannels in the interface,the spreading characteristics of the fluid in contact interface,as well as the mechanical driving *** surface morphology and the contact stress have a significant impact on the interface topography and the distribution of interfacial microchannels,which shows that the feature lengths of the microchannels,the spreading area and the spreading rate of the fluid are inversely proportional to the *** the flow path of the fluid in the interface is mainly divided into three stages:along the wall of the island,generating liquid bridges,and moving from the tip side to the root side in the wedge-shaped *** main mechanical mechanism of liquid flow in the interface is the equilibrium between the capillary force that drives the liquid spreading and viscous resistance of solid wall to *** addition,the phenomenon of“trapped air”occurs during the flow process due to the irregular characteristics of the *** study lays a certain theoretical foundation for the research of microscopic flow behavior of the liquid in the rough contact interface,the friction and lubrication of the mechanical system,and the sealing mechanism.

关键词： rough contact interface fluid flow topography evolution microchannel in-situ observation

Eliminating the original cargos of glioblastoma cell-derived small extracellular vesicles for efficient drug delivery to glioblastoma with improved biosafety

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Bioactive Materials 2022年第10期7卷 204-217页

作者： yuhang guo guowen Hu Yuguo Xia HaiYan Li Ji Yuan Juntao Zhang Yu Chen Hua guo Yunlong Yang Yang Wang Zhifeng Deng Department of Neurosurgery Shanghai Jiao Tong University Affiliated Sixth People’s Hospital600#Yishan RoadShanghaiChina Institute of Microsurgery on Extremities Department of Orthopedic SurgeryShanghai Jiao Tong University Affiliated Sixth People’s Hospital600#Yishan RoadShanghai200233China Department of Neurosurgery The Second Affiliated Hospital of Nanchang University1#Minde RoadNanchangChina Department of Neurosurgery Xiangya Hospital Central South University87#Xiangya RoadChangshaChina Chemical and Environmental Engineering Department School of EngineeringRMIT University124 La Trobe StMelbourne VIC 3001Australia

Tumor derived small extracellular vesicles(TsEVs)display a great potential as efficient nanocarriers for chemotherapy because of their intrinsic targeting ***,the inherited risks of their original cargos(like loaded proteins or RNAs)from parent cancer cells in tumor progression severely hinder the practical *** this study,a saponin-mediated cargo elimination strategy was established and practiced in glioblastoma(GBM)cell-derived small extracellular vesicles(GBM-sEVs).A high eliminating efficacy of the cargo molecules was confirmed by systematic analysis of the original proteins and RNAs in *** addition,the inherited functions of GBM-sEVs to promote GBM progression vanished after saponin ***,the results of cellular uptake analysis and in vivo imaging analysis demonstrated that saponin treatment preserved the homotypic targeting ability of ***,we developed an efficient nanocarrier with improved biosafety for GBM ***,doxorubicin(DOX)transported by the saponin-treated GBM-sEVs(sa-GBM-sEVs)displayed an effective tumor suppression in both subcutaneous and orthotopic GBM models of ***,this study provides a feasible way to avoid the potential protumoral risks of TsEVs and can advance the clinical application of TsEVs in chemotherapy.

关键词： Tumor derived small extracellular vesicles Cargo elimination Saponin Glioblastoma Drug delivery

Research on Green Transformation of Campus Sponge and Energy Saving Facilities on Sloping Land

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Frontiers Research of Architecture and Engineering 2021年第2期4卷 12-15页

作者： Qiliang Tan yuhang guo Nanning No.2 Middle School NanningGuangxi530029China

Based on the renovation of sponge and energy-saving facilities in a middle school in Nanning,this paper systematically studies the overall elevation of the campus,the composition of the drainage system and the layout of space functions,and formulates a characteristic scheme for the renovation of sponge and energy-saving facilities according to the characteristics of the sloping *** order to control the total amount of rainwater runoff,the sponge transformation mainly adopts the transformation methods of partition catchment,upper storage and lower use,multi-stage detection and classification *** the purpose of solar energy and wind energy utilization,solar photovoltaic panels and small-scale wind power generation system are *** application effects of sponge and energy-saving facilities are estimated and evaluated.

关键词： Slope campus Sponge and energy saving measures Water purification terrace Photovoltaic power generation

Experimental study on parameter determination of fluid replacement equation for volcanic reservoirs

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Global Geology 2020年第4期23卷 234-240页

作者： ZHOU Weiyi PAN Baozhi guo yuhang College of Geo-Exploration Science and Technology Jilin UniversityChangchun 130026China

In this study,the parameters of Gassmann equation based on fluid replacement theory are studied by measuring the acoustic velocity during the evaporation process of volcanic rocks in Nanpu *** experimental data show that with the decrease of porosity of tight volcanic rock,the acoustic velocity difference between dry and wet rock samples increases,which is conducive for the identification of gas bearing reservoirs with acoustic log *** fluid bulk modulus distribution of volcanic rocks in the study area conforms to Brie model,and the value of empirical coefficient e is related to *** experimental results show that there is a linear relationship between the P-wave transit time of dry and wet rock *** porosity to calculate the acoustic transit time of saturated rock samples,and taking it into the experimental formula,we can get the P-wave transit time and bulk modulus of dry rock *** to the bulk modulus of mixed fluid,dry rock and rock matrix determined by experiments,the saturation of volcanic reservoir in Nanpu area is calculated by Gassmann equation,which is in good contrast with the conclusion of gas *** study provides an experimental basis for quantitative evaluation of volcanic gas reservoirs using seismic and acoustic logging data.

关键词： volcanic rock acoustic velocity Gassmann equation parameter determination saturation calculation

A Multi-event Extraction Model for Nursing Records

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国际计算机前沿大会会议论文集 2022年第2期 146-158页

作者： Ruoyu Song Lan Wei yuhang guo School of Computer Science and Technology Beijing Institute of TechnologyBeijing 100081China Xuanwu Hospital Capital Medical University Beijing 100053China

Nursing records contain information on patients’treatment processes,which reflect the changes in patients’conditions and have legal ***,some of the written records of intensive care unit(ICU)nurses are incomplete according to our *** paper proposes an approach extracting structured nursing events from unstructured nursing records for detecting the missing items *** to the PIO(problem,intervention,outcome)principle in the field of medical care,we propose event schemas for nursing records and annotate a Chinese nursing event extraction dataset(CNEED)on ICU nursing *** find that several events may occur in a nursing ***,we present a multi-event extraction model for the nursing *** experimental results demonstrate that our model achieves good results on CNEED and outperforms competitive methods on the multi-event argument attribution *** observing the results of automatic event extraction by our model,we detect missing items in the existing nursing *** proves that our model can be used to help nurses check and improve the method of recording nursing processes.

关键词： Event extraction Nursing records Multi-event