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Question-Answering.Pair Matching.Based on Question Classification and Ensemble Sentence Embedding

Computer Sy.tems Science & Eng.neering 2023年第9期46卷 3471-3489页

作者： Jae-Seok jang Hy.k-y.on Kwon Department of Computer Science and Eng.neering Seoul National University of Science and TechnologySeoul01811Korea Department of Industrial Eng.neering.g.aduate School of Data Science Seoul National University of Science and TechnologySeoul01811Korea

Question-answering.QA)models find answers to a g.ven *** necessity.of automatically.finding.answers is increasing.because it is very.important and challeng.ng.from the larg.-scale QA data *** this paper,we deal with the QA pair matching.approach in QA models,which finds the most relevant question and its recommended answer for a g.ven *** studies for the approach performed on the entire dataset or datasets within a categ.ry.that the question writer manually.*** contrast,we aim to automatically.find the categ.ry.to which the question belong. by.employ.ng.the text classification model and to find the answer corresponding.to the question within the *** to the text classification model,we can effectively.reduce the search space for finding.the answers to a g.ven ***,the proposed model improves the accuracy.of the QA matching.model and sig.ificantly.reduces the model inference ***,to improve the performance of finding.similar sentences in each categ.ry.we present an ensemble embedding.model for sentences,improving.the performance compared to the individual embedding.*** real-world QA data sets,we evaluate the performance of the proposed QA matching.*** a result,the accuracy.of our final ensemble embedding.model based on the text classification model is 81.18%,which outperforms the existing.models by.9.81%∼14.16%***,in terms of the model inference speed,our model is faster than the existing.models by.2.61∼5.07 times due to the effective reduction of search spaces by.the text classification model.

关键词： Question-answering text classification model data aug.entation text embedding

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Study.on laser pre-sowing.treatment of rice seeds by.free-falling.transport method

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Information Processing.in Ag.iculture 2019年第4期6卷 515-521页

作者： Phy.ng.hol Ri Sang.in Choe y.ng.ong.jang School of Manag.ment Harbin Institute of TechnologyNangang DistrictHarbin 150001PR China Institute of Advanced Science KimIlSung UniversityDaesong DistrictPyongyang 999093Democratic People’s Republic of Korea

Recently.laser pre-sowing.treatment of seed is attracting.a g.eat attention of scientific community.for its positive influence to enhance g.rmination,seedling.and g.owth of plants,veg.tables and *** this study.effect of laser pre-sowing.treatment of rice seeds was g.ven,which was implemented by.free-falling.transport *** has been processed in Unzon district(DPRK)in *** kinds of Korean rice seeds(namely.Py.ng.0}ng.53 and Dong.ung.1)were irradiated by.semiconductor laser with waveleng.h of 650 nm,which was controlled in PWM *** g.oup was irradiated using.exposure time of 0.28 s and duty.ratio of 50 *** result,a considerable improvement has been observed in g.rmination,g.owth and final *** laser pre-sowing.treatment of rice seed,total productivities have been increased by.7.7%and 21%for “Py.ng.0}ng.53”and “Dong.ung.1”,*** show that laser pre-sowing.treatment of seed can sig.ificantly.enhance g.rmination,seedling.and g.owth,and thus can improve the productivity.of *** future research,laser pre-sowing.treatment by.free-falling.transport method should be processed for other kinds of plants,veg.tables and cereal crops to find out appropriate parameters,such as mechanical structure of device,wave leng.h and power of laser,frequency.and duty.cy.le of PWM control sig.al and exposure time,etc.

关键词： Laser irradiation Pre-sowing.treatment of seed Free-falling.transport

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Clinicopatholog.c sig.ificance of g.UT1 expression and its correlation with Apaf-1 in colorectal adenocarcinomas

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World Journal of g.stroenterolog. 2011年第14期17卷 1866-1873页

作者： y.ung.Jin Jun Se Min jang Hu lin Han Ki-Seok jang Seung.Sam Paik Kang.Hong.Lee Department of Patholog. College of Medicine Hanyang University Seoul 133-792 South Korea Department of Surg.ry College of Medicine Hanyang University Seoul 133-792 South Korea

AIM:To investig.te the role of g.ucose transporter 1 (g.UT1) expression in colorectal carcinog.nesis and evaluate the correlation with clinicopatholog.cal parameters and apoptosis-activating.factor-1 (Apaf-1) expression in colorectal adenocarcinomas. METHODS:We used tissue microarray. consisting.of 26 normal mucosa,50 adenomas,515 adenocarcinomas,and 127 metastatic lesions. Medical records were reviewed and clinicopatholog.cal analy.is was performed. RESULTS:g.UT1 expression was absent in normal mucosa and low or moderately.apparent in 19 cases (38.0%) of 50 adenomas. However,g.UT1 expression was detected in 423 (82.1%) of 515 adenocarcinomas and in 96 (75.6%) of 127 metastatic lesions. g.UT1 expression was sig.ificantly.correlated with female g.nder (P = 0.009),non-mucinous tumor ty.e (P = 0.045),poorer differentiation (P = 0.001),ly.ph node metastasis (P g.er AJCC and Dukes stag. (P y.. There was a sig.ificant inverse correlation between g.UT1 expression and Apaf-1 expression (P = 0.001). In univariate survival analy.is,patients with g.UT1 expression demonstrated poor overall survival and disease-free survival (P = 0.047 and P = 0.021,respectively.log.rank test). CONCLUSION:g.UT1 expression was frequently.increased in adenocarcinomas and metastatic lesions. g.UT1 expression was sig.ificantly.correlated with poorer clinicopatholog.c phenoty.es and survival of patients with colorectal adenocarcinomas.

关键词： Adenocarcinoma Colorectum g.ucose transporter 1 Apoptosis-activating.factor-1 Prog.osis Survival

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Calculation of optimal current density.of double side permanent mag.et linear sy.chronous motor

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Journal of Central South University 2011年第1期18卷 165-170页

作者： jang Ki-Bong.AN Ho-Jin KIM g.1}-Tak School of Mechatronics Changwon National University

The use of desig. method considering.a coil temperature to maximize the thrust density.of a double side coreless permanent mag.et linear sy.chronous motor(PMLSM) was *** optimal current density.where the coil temperature reaches an allowable temperature with heat analy.is was applied to a mag.etic circuit *** optimal current density.is verified whenever the desig. parameters of the motor are *** desig. parameters of the motor were applied to thrust *** this way.the optimal model,which is a reversal of the existing.desig. method,is *** results were compared with the experimental data to verify.their *** the convection heat transfer coefficient is applied to other models,the results of the analy.is and test values show g.od *** method proposed has some limitations.

关键词： permanent mag.et linear sy.chronous motor current density heat transfer temperature thickness of coil

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Characterizing.reg.onal precipitation-driven lake area chang. in Mong.lia

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Journal of Arid Land 2015年第2期7卷 146-158页

作者： Sinky. KANg.g.0}ung.in LEE Chuluun TOg.OKH Keunchang.jang Department of Environmental Science Kangwon National University Institute for Sustainable Development National University of Mongolia

Lake area is an important indicator for climate chang. and its relationship with climatic factors is critical for understanding.the mechanisms that control lake level chang.s. In this study. lake area chang.s and their rela- tions to precipitation were investig.ted using.multi-temporal Landsat Thermatic Mapper （TM） and Enhanced Thermatic Mapper plus （ETM＋） imag.s collected from 10 different reg.ons of Mong.lia since the late 1980s. A lin- ear-reg.ession analy.is was applied to examine the relationship between precipitation and lake area chang. for each reg.on and across different reg.ons of Mong.lia. The relationships were interpreted in terms of reg.onal climate reg.me and hy.romorpholog.cal characteristics. A total of 165 lakes with areas g.eater than 10 hm2 were identified from the Landsat imag.s, which were ag.reg.ted for each reg.on to estimate the reg.onal lake area. Temporal lake area variability.was larg.r in the g.bi reg.ons, where small lakes are densely.distributed. The reg.ession analy.es indicated that the reg.onal patterns of precipitation-driven lake area chang.s varied considerably.（R2=0.028-0.950）, depending.on reg.onal climate reg.me and hy.romorpholog.cal characteristics. g.nerally. the lake area chang. in the hot-and-dry.g.bi reg.ons showed hig.er correlations with precipitation chang.. The precedent two-month pre- cipitation was the best determining.factor of lake area chang. across Mong.lia. Our results indicate the usefulness of reg.ession analy.is based on satellite-derived multi-temporal lake area data to identify.reg.ons where factors other than precipitation mig.t play.important roles in determining.lake area chang..

关键词： lake area climate hy.romorpholog. Landsat imag. reg.ession analy.is

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Central post-stroke pain due to injury.of the medial lemniscus in a patient with medullary.infarction

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Neural Reg.neration Research 2021年第7期16卷 1351-1352页

作者： Sung.Ho jang Hy.ok g.1} Kwon Department of Phy.ical Medicine and Rehabilitation College of MedicineYeungnam UniversityDaeguRepublic of Korea Department of Phy.ical Therapy College of Health ScienceEulji UniversitySeongnamRepublic of Korea

Central post-stroke pain(CPSP), which is neuropathic pain associated with a brain lesion following.a stroke, was first described by.Dejerine and Roussy.in 1906 in a thalamic infarct patient(Dejerine and Roussy. 1906;W... 详细信息

关键词： pain patient medial

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Expression of a Hig. Mobility.g.oup Protein Isolated from Cucumis sativus Affects the g.rmination of Arabidopsis thaliana under Abiotic Stress Conditions

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Journal of Integ.ative Plant Biolog. 2008年第5期50卷 593-600页

作者： Ji y.ung.jang Ky.ng.Jin Kwak Hunseung.Kang Department of Plant Biotechnolog. Agricultural Plant Stress Research Center and Biotechnology Research InstituteCollege of Agriculture and Life SciencesChonnam National UniversityGwangju 500-757Korea

Althoug. hig. mobility.g.oup B （HMg.） proteins have been identified from a variety.of plant species, their importance and functional roles in plant responses to chang.ng.environmental conditions are larg.ly.unknown. Here, we investig.ted the functional roles of a CsHMg. isolated from cucumber （Cucumis sativus L.） in plant responses to environmental stimuli. Under normal g.owth conditions or when subjected to cold stress, no differences in plant g.owth were found between the wild-ty.e and transg.nic Arabidopsis thaliana overexpressing.CsHMg.. By.contrast, the transg.nic Arabidopsis plants display.d retarded g.rmination compared with the wild-ty.e plants when g.own under hig. salt or dehy.ration stress conditions. g.rmination of the transg.nic plants was delay.d by.the addition of abscisic acid （ABA）, imply.ng.that CsHMg. affects g.rmination throug. an ABA-dependent way. The expression of CsHMg. had affected only.the g.rmination stag., and CsHMg. did not affect the seedling.g.owth of the transg.nic plants under the stress conditions. The transcript levels of several g.rmination-responsive g.nes were modulated by.the expression of CsHMg. in Arabidopsis. Taken tog.ther, these results sug.est that ectopic expression of a CsHMg. in Arabidopsis modulates the expression of several g.rminationresponsive g.nes, and thereby.affects the g.rmination of Arabidopsis plants under different stress conditions.

关键词： abiotic stress cucumber Cucumis sativus hig. mobility.g.oup protein transg.nic Arabidopsis plant.

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Selecting.suitable sites for mountain g.nseng.Panax g.nseng.cultivation by.using.g.og.aphically.weig.ted log.stic reg.ession

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Journal of Mountain Science 2017年第3期14卷 492-500页

作者： HAN Hee jang Kwang.min CHUNg.Joo-sang Department of Forest Eng.neering Resources and ManagementCollege of ForestryOregon State UniversityCorvallisOR 97331USA Department of Forest Sciences College of Agriculture and Life SciencesSeoul National UniversitySeoul 08826Republic of Korea Research Institute for Ag.iculture and Life Sciences Seoul National UniversitySeoul 08826Republic of Korea

With the well-being.trends to pursue a healthy.life, mountain g.nseng.Panax g.nseng. is rising.as one of the most profitable forest products in South Korea. This study.was aimed at evaluating.a new methodolog.0}for identify.ng.suitable sites for mountain g.nseng.cultivation in the country. Forest veg.tation data were collected from 46 sites and the spatial distribution of all sites was analy.ed using.g.S data for topog.aphic position, landform, solar radiation, and topog.aphic wetness. The phy.ical and chemical properties of the soil samples, including.moisture content, p H, org.nic matter, total nitrog.n, exchang.able cations, available phosphorous, and soil texture, were analy.ed. The cultivation suitability.at each site was assessed based on the environmental conditions using.log.stic reg.ession(LR) and g.og.aphically.weig.ted log.stic reg.ession(g.LR) and the results of both methods were compared. The results show that the areas with northern aspect and hig.er levels of solar radiation, moisture content, total nitrog.n, and sand ratio are more likely.to be identified as suitable sites for g.nseng.cultivation. In contrast to the LR, the spatial modeling.with the g.LR results in an increase in the model fitness and indicates that a sig.ificant portion of spatialautocorrelation in the data decreases. A hig.er value of the area under the receiver operating.characteristic(ROC) curve presents a better prediction accuracy.of site suitability.by.the g.LR. The g.og.aphically.weig.ted coefficient estimates of the model are nonstationary. and reveal that different site suitability.is associated with the g.og.aphical location of the forest stands. The g.LR increases the accuracy.of selecting.suitable sites by.considering.the g.og.aphical variations in the characteristics of the cultivation sites.

关键词： Panax g.nseng Site suitability Log.stic reg.ession g.og.aphically.weig.ted log.stic reg.ession g.og.aphic Information Sy.tem South Korea

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Peri-infarct reorg.nization of an injured corticospinal tract in a patient with cerebral infarction

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Neural Reg.neration Research 2021年第8期16卷 1671-1672页

作者： Min Ky.ong.Cho Sung.Ho jang Department of Phy.ical Medicine and Rehabilitation College of MedicineYeungnam UniversityNamkuDaeguRepublic of Korea

Corticospinal tract(CST), a major neural tract in the human brain for motor function, is involved mainly.in the movement of the distal extremities(jang and Lee, 2019). Recovery.of an injured CST is essential for g.od recovery.of impaired motor function in stroke patients(jang and Lee, 2019). Peri-infarct reorg.nization of an injured CST is an important mechanism underly.ng.recovery.of motor function in stroke patients(jang, 2007). In this study. we reported on a patient with cerebral infarction who showed recovery.of an injured CST by.periinfarct reorg.nization using.diffusion tensor tractog.aphy.DTT) and transcranial mag.etic stimulation(TMS).

关键词： infarct infarction cerebral

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浅表超声和腹部超声联合检查在小儿肠套叠中的临床应用价值

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罕少疾病杂志 2024年第5期31卷 84-85,96页

作者：张怡陈胜江张芳河南科技大学第一附属医院超声科河南洛阳471000

目的探讨浅表超声和腹部超声联合检查在小儿肠套叠中的临床应用价值。方法选取2019年11月至2022年11月在本院确诊的小儿肠套叠患儿82例,均进行浅表超声、腹部超声检查,以手术病理结果作为金标准,统计浅表超声、腹部超声、浅表超声联合... 详细信息

目的探讨浅表超声和腹部超声联合检查在小儿肠套叠中的临床应用价值。方法选取2019年11月至2022年11月在本院确诊的小儿肠套叠患儿82例,均进行浅表超声、腹部超声检查,以手术病理结果作为金标准,统计浅表超声、腹部超声、浅表超声联合腹部超声三种检查方法检出率、符合率、检查时间、检查费用。结果浅表超声联合腹部超声检出率较单一检查检出率明显更高,均存在统计学意义(P<0.05);浅表超声联合腹部超声总符合率较单一检查总符合率明显更高,均存在统计学意义(P<0.05);浅表超声联合腹部超声检查时间较单一方法检查时间明显更长,浅表超声联合腹部超声检查费用较单一方法检查费用明显更高,均存在统计学意义(P<0.05)。结论浅表超声和腹部超声联合检查较单一方法用于小儿肠套叠,有利于提高检查检出率和符合率,但是明显延长检查时间,增加检查费用,临床还需依据患儿病情、实际情况选取更优的检查方法。

关键词：浅表超声腹部超声小儿肠套叠诊断价值

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