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Application of Word Embedding to Drug Repositioning

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Journal of Biomedical Science and Engineering 2016年第1期9卷 7-16页

作者： Duc Luu Ngo Naoki Yamamoto Vu anh Tran ngoc Giang Nguyen Dau Phan Favorisen Rosyking Lumbanraja Mamoru Kubo Kenji Satou Graduate School of Natural Science and Technology Kanazawa University Kanazawa Japan Institute of Science and Engineering Kanazawa University Kanazawa Japan

As a key technology of rapid and low-cost drug development, drug repositioning is getting popular. In this study, a text mining approach to the discovery of unknown drug-disease relation was tested. Using a word embedding algorithm, senses of over 1.7 million words were well represented in sufficiently short feature vectors. Through various analysis including clustering and classification, feasibility of our approach was tested. Finally, our trained classification model achieved 87.6% accuracy in the prediction of drug-disease relation in cancer treatment and succeeded in discovering novel drug-disease relations that were actually reported in recent studies.

关键词： Distributed Representation of Word Sense Discovery of Drug-Disease Relation Word Analogy

Porosity Estimation from High Resolution CT SCAN Images of Rock Samples by Using Housfield Unit

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Open Journal of Geology 2018年第10期8卷 1019-1026页

作者： Nguyen Lam Quoc Cuong Nguyen Hong Minh Hoang Manh Cuong Phan ngoc Quoc Ngo Hoang Van anh Nguyen Van Hieu Analysis Laboratory Center-Vietnam Petroleum Institute Ho Chi Minh City Vietnam

Computer Automated Tomography has been shown to be a valuable tool in production research because it provides a non-destructive method to identify and evaluate the internal structural characteristics of reservoir rock. In CT scan, Hounsfield Unit (HU) is proportional to the degree of X-ray attenuation by the tissue. The aim of the present study was to introduce the method to estimate porosity which is one of physical parameters of reservoir rock though HU data. In this study, an Image J software was used to extract Hounsfield Unit data and calibrate by standard material’s density. This method provides the ability of using CT Scanner in advanced reservoir characterization and flow test experiments.

关键词： CT Scan Hounsfield Unit Porosity

21世纪以来越南对中国长期贸易逆差的成因及影响—越南的视角

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21世纪以来越南对中国长期贸易逆差的成因及影响—越南的视角

作者：黎氏玉英（LE THI ngoc anh）上海外国语大学

学位级别：硕士

世界和区域经济一体化是发展中国家的客观和必然的趋势,让各国之间的经贸关系日益密切。因此,经济对外政策被越南政府视为是经济发展战略的一个重要问题,尤其是与大国中国的双边关系。随着20世纪以来中越两国外交关系的发展,贸易关系也... 详细信息

世界和区域经济一体化是发展中国家的客观和必然的趋势,让各国之间的经贸关系日益密切。因此,经济对外政策被越南政府视为是经济发展战略的一个重要问题,尤其是与大国中国的双边关系。随着20世纪以来中越两国外交关系的发展,贸易关系也不断增长,满足越南生产和消费的需求,对促进越南经济猛烈增长有着显著的作用。但随着两国贸易的增长,越中贸易赤字也逐渐明显,而越南也经常处于贸易逆差状态。该问题在一定程度上会阻碍甚至危害到越中贸易关系的稳定发展。所以,越南对中国长期贸易逆差问题已经吸引了越南国内众多学者以及越南政府的关注。因此,研究该问题,并找出解决措施带着重大的意义。据越南海关总局统计,近年来,越南对中国的贸易赤字日趋严重,这让越南经济在很大程度上过于依赖中国,从而失去主动位置,对宏观经济平衡状态和经济的可持续发展有着显著消极的影响。贸易逆差不仅对越南有消极的影响,而且对处于顺差地位的中国也有一定的负面影响。为了全面概述了解越中贸易逆差问题,本文主要采取2000-2016年越中两国的经贸指数、GDP指数、投资合作等方面的数据进行对比、对照,分析两国之间贸易实力的互相影响。通过研究,笔者认为要解决越中两国之间的贸易赤字问题,不能只依赖逆差方的越南单方面的努力,这需要两国的努力合作才能彻底解决。所以在促进两国贸易发展的同时,中国政府应当对推动越南商品在中国国内的销售作出一些引导、鼓励,提高越南对中国的出口幅度。另外,中方也要支持中国企业赴越投资兴业,也为越南企业来华开拓市场创造更便利条件。这样不仅能促使两国经贸合作迅速发展,而且对双方今后贸易关系不平衡问题的解决也会起到一定的作用。总之中越两国间的贸易平衡问题只有在双方共同努力下才能妥善解决。

关键词：中国越南贸易逆差对外贸易越中贸易关系

Ecoregional variations of aboveground biomass and stand structure in evergreen broadleaved forests

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Journal of Forestry Research 2020年第5期31卷 1713-1722页

作者： Tran Van Do Mamoru Yamamoto Osamu Kozan Vo Dai Hai Phung Dinh Trung Nguyen Toan Thang Lai Thanh Hai Vu Thanh Nam Trieu Thai Hung Hoang Van Thang Tran Duc Manh Cao Chi Khiem Vu Tien Lam Nguyen Quang Hung Tran Hoang Quy Pham Quang Tuyen Trinh ngoc Bon Nguyen Thi Thu Phuong Ninh Viet Khuong Nguyen Van Tuan Dang Thi Hai Ha Tran Hai Long Dang Van Thuyet Dang Thinh Trieu Nguyen Van Thinh Tran anh Hai Duong Quang Trung Nguyen Van Bich Dinh Hai Dang Pham Tien Dung Nguyen Huy Hoang Le Thi Hanh Phan Minh Quang Nguyen Thi Thuy Huong Hoang Thanh Son Nguyen Thanh Son Nguyen Thi Van anh Nguyen Thi Hoai anh Pham Dinh Sam Hoang Thi Nhung Hoang Van Thanh Nguyen Huu Thinh Tran Hong Van Ho Trung Luong bui Kieu Hung Research Institute for Sustainable Humanosphere Kyoto UniversityUjiKyotoJapan Silviculture Research Institute Vietnamese Academy of Forest SciencesNorth Tu LiemHanoiVietnam Center for Southeast Asian Studies Kyoto UniversityKyotoJapan Vietnamese Academy of Forest Sciences North Tu LiemHanoiVietnam Vietnam Administration of Forestry No.2 Ngoc HaBa DinhHanoiVietnam

Biotic and abiotic factors control aboveground biomass(AGB)and the structure of forest *** study analyses the variation of AGB and stand structure of evergreen broadleaved forests among six ecoregions of Vietnam.A data set of 1731-ha plots from 52 locations in undisturbed old-growth forests was *** results indicate that basal area and AGB are closely correlated with annual precipitation,but not with annual temperature,evaporation or hours of *** area and AGB are positively correlated with trees>30 cm *** areas surveyed(52.6%)in these old-growth forests had AGB of 100–200 Mg ha^-1;5.2%had AGB of 400–500 Mg ha^-1,and 0.6%had AGB of>800 Mg ha^-*** percent of the areas surveyed had stand densities of 300–600 ***^-1,and 64%had basal areas of 20–40 m^2 ha^-*** is an important factor influencing the AGB of old-growth,evergreen broadleaved forests in *** causing the loss of large-diameter trees(e.g.,>100 cm DBH)affects AGB but may not seriously affect stand density.

关键词： Aboveground biomass Carbon storage Climatic variables Ecoregion Edaphic variables Oldgrowth forest

越南初级汉语教学中的词汇释义法研究——以顺化市汉语教学为例

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越南初级汉语教学中的词汇释义法研究——以顺化市汉语教学为例

作者：黎女玉英（Le Nu ngoc anh）中央民族大学

学位级别：硕士

20世纪之前,越南古代人所使用的语言是汉文。由此可见,对外汉语在越南很久以前已经有了位置。到现在,越南拥有近百万华人而且目前需要学习汉语的人越来越多,证明汉语教学工作日益发展。在汉语教学中,词汇占了很重要的地位。因此越南教... 详细信息

20世纪之前,越南古代人所使用的语言是汉文。由此可见,对外汉语在越南很久以前已经有了位置。到现在,越南拥有近百万华人而且目前需要学习汉语的人越来越多,证明汉语教学工作日益发展。在汉语教学中,词汇占了很重要的地位。因此越南教师如何将词语的意义清楚地解释给学生是目前要重视的工作。但,是否越南教师都能运用各种释义法来丰富地解释词语?是否所有的释义法都引起学生的注意力?笔者带着这样的疑问去收集和阅读很多参考文献,进行观察越南汉语课堂,并以越南顺化市的汉语学习者为研究对象,利用问卷调查越南学生对于此问题的想法。最后提出一些有帮助与发展教师释义方法培训的建议。本文希望从国别角度上,通过研究可以寻找最符合越南学生的词语释义方法,并运用在课堂教学上,提高学生的学习效果和学习兴趣。

关键词：越南对外汉语词汇教学释义法

Predicting Βeta-Turns and Βeta-Turn Types Using a Novel Over-Sampling Approach

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Journal of Biomedical Science and Engineering 2014年第11期7卷 927-940页

作者： Lan anh T. Nguyen Xuan Tho Dang Tu Kien T. Le Thammakorn Saethang Vu anh Tran Duc Luu Ngo Sergey Gavrilov ngoc Giang Nguyen Mamoru Kubo Yoichi Yamada Kenji Satou Graduate School of Natural Science and Technology Kanazawa University Kanazawa Japan Department of Computer Science Hue University of Education Hue Vietnam Institute of Science and Engineering Kanazawa University Kanazawa Japan

β-turn is one of the most important reverse turns because of its role in protein folding. Many computational methods have been studied for predicting β-turns and β-turn types. However, due to the imbalanced dataset, the performance is still inadequate. In this study, we proposed a novel over-sampling technique FOST to deal with the class-imbalance problem. Experimental results on three standard benchmark datasets showed that our method is comparable with state-of-the-art methods. In addition, we applied our algorithm to five benchmark datasets from UCI Machine Learning Repository and achieved significant improvement in G-mean and Sensitivity. It means that our method is also effective for various imbalanced data other than β-turns and β-turn types.

关键词： Beta-Turns Beta-Turn Types Class-Imbalance Over-Sampling

浅议语言环境因素对汉语教学的影响及对策——以越南太原大学外国语学院为例

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中国科技经济新闻数据库教育 2016年第9期 267-268页

作者：梅氏玉英(MAI THI ngoc anh) 越南太原大学外国语学院广州天河510640

语言学习环境对语言学习有很大的影响,它直接影响到语言教学质量、语言输入、语言内在和语言输出。为了能够营造良好的外语教学环境,巩固和提高学生汉语水平。本文以越南太原大学外国语学院为例,提出一些环境因素对汉语教学的影响和改... 详细信息

语言学习环境对语言学习有很大的影响,它直接影响到语言教学质量、语言输入、语言内在和语言输出。为了能够营造良好的外语教学环境,巩固和提高学生汉语水平。本文以越南太原大学外国语学院为例,提出一些环境因素对汉语教学的影响和改善汉语语言环境的一些建议。

关键词：汉语言学习语言学习环境汉语教学影响对策

DNA Sequence Classification by Convolutional Neural Network

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Journal of Biomedical Science and Engineering 2016年第5期9卷 280-286页

作者： ngoc Giang Nguyen Vu anh Tran Duc Luu Ngo Dau Phan Favorisen Rosyking Lumbanraja Mohammad Reza Faisal Bahriddin Abapihi Mamoru Kubo Kenji Satou Graduate School of Natural Science and Technology Kanazawa University Kanazawa Japan Institute of Science and Engineering Kanazawa University Kanazawa Japan

In recent years, a deep learning model called convolutional neural network with an ability of extracting features of high-level abstraction from minimum preprocessing data has been widely used. In this research, we proposed a new approach in classifying DNA sequences using the convolutional neural network while considering these sequences as text data. We used one-hot vectors to represent sequences as input to the model;therefore, it conserves the essential position information of each nucleotide in sequences. Using 12 DNA sequence datasets, we evaluated our proposed model and achieved significant improvements in all of these datasets. This result has shown a potential of using convolutional neural network for DNA sequence to solve other sequence problems in bioinformatics.

关键词： DNA Sequence Classification Deep Learning Convolutional Neural Network

Solutions for Sustainable Economic Development inHo Chi Minh City

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Management Studies 2020年第1期8卷 74-83页

作者： bui ngoc Hien Ho Chi Minh city Cadre Academy Ho Chi Minh CityVietnam

Sustainable urban development is becoming the top concern of the nations in making and implementing the development policy *** urban development is a harmonious,effective development process with three pillars:economic development,social inclusion,and environmental management *** is a rapidly urbanizing *** process makes Vietnam’s cities face many major problems and challenges,especially sustainable economic *** Chi Minh City is Vietnam’s largest *** is the dynamic city with the fastest socio-economic development rate of *** development of Ho Chi Minh City plays an important role in the overall development of the whole ***,in the assessments of the authorities and experts,Ho Chi Minh City is growing slowly and facing many big *** on the analysis of the City’s potentials and advantages as well as the difficulties and challenges of the new development context,this paper recommends groups of solutions for sustainable economic development in Ho Chi Minh City in the next decades.

关键词： sustainable urban development sustainable economic development Ho Chi Minh City