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Enhancing N-Gram Based Metrics with Semantics for Better Evaluation of Abstractive Text Summarization

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Journal of Computer Science & Technology 2022年第5期37卷 1118-1133页

作者： jia-wei he Wen-Jun jiang Guo-Bang Chen Yu-Quan Le Xiao-Fei Ding College of Information Science and Electronic Engineering Hunan UniversityChangsha 410082China

Text summarization is an important task in natural language processing and it has been applied in many ***,abstractive summarization has attracted many ***,the traditional evaluation metrics that consider little semantic information,are unsuitable for evaluating the quality of deep learning based abstractive summarization models,since these models may generate new words that do not exist in the original ***,the out-of-vocabulary(OOV)problem that affects the evaluation results,has not been well solved *** address these issues,we propose a novel model called ENMS,to enhance existing N-gram based evaluation metrics with *** be specific,we present two types of methods:N-gram based Semantic Matching(NSM for short),and N-gram based Semantic Similarity(NSS for short),to improve several widely-used evaluation metrics including ROUGE(Recall-Oriented Understudy for Gisting Evaluation),BLEU(Bilingual Evaluation Understudy),*** and NSS work in different *** former calculates the matching degree directly,while the latter mainly improves the similarity *** we propose an N-gram representation mechanism to explore the vector representation of N-grams(including skip-grams).It serves as the basis of our ENMS model,in which we exploit some simple but effective integration methods to solve the OOV problem *** results over the TAC AESOP dataset show that the metrics improved by our methods are well correlated with human judgements and can be used to better evaluate abstractive summarization methods.

关键词： summarization evaluation abstractive summarization hard matching semantic information

Porous palladium phosphide nanotubes for formic acid electrooxidation

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Carbon Energy 2022年第3期4卷 283-293页

作者： Tian-jiao Wang Yu-Chuan jiang jia-wei he Fu-Min Li Yu Ding Pei Chen Yu Chen School of Materials Science and Engineering Key Laboratory of Macromolecular Science of Shaanxi ProvinceKey Laboratory of Applied Surface and Colloid Chemistry(Ministry of Education)Shaanxi Key Laboratory for Advanced Energy DevicesShaanxi Engineering Lab for Advanced Energy TechnologyShaanxi Normal UniversityXi'anChina

The development of an efficient catalyst for formic acid electrocatalytic oxidation reaction(FAEOR)is of great significance to accelerate the commercial application of direct formic acid fuel cells(DFAFC).herein,palladium phosphide(PdxPy)porous nanotubes(PNTs)with different phosphide content(i.e.,Pd3P and Pd5P2)are prepared by combining the self-template reduction method of dimethylglyoxime-Pd(II)complex nanorods and succedent phosphating *** the reduction process,the self-removal of the template and the continual inside-outside Ostwald ripening phenomenon are responsible for the generation of the one-dimensional hollow and porous *** the basis of the unique synthetic procedure and structural advantages,Pd3P PNTs with optimized phos phide content show outstanding electroactivity and stability for *** portantly,the strong electronic effect between Pd and P promotes the direct pathway of FAEOR and inhibits the occurrence of the formic acid decomposition reaction,which effectively enhances the FAEOR electroactivity of Pd3P *** view of the facial synthesis,excellent electroactivity,high stability,and unordinary selectivity,Pd3P PNTs have the potential to be an efficient anode electrocatalyst for DFAFC.

关键词： electronic effect formic acid oxidation reaction palladium phosphide porous nanotubes self-template method

基于根系分泌物研究混合型邻群环境对小麦幼苗亲缘识别的调控作用

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生态学杂志 2020年第8期39卷 2610-2615页

作者：魏嘉禾陈斌南京林业大学南方现代林业协同创新中心南京林业大学生物与环境学院南京210037

采取根系分泌物替代邻居植物的方法,设置近缘(品种内)、种内远缘(品种间)和种间远缘(物种间)3个亲缘关系处理,单一和混合亲缘型两个水平邻群复杂性处理以及两个小麦(Triticum aestivum)品种处理的交互实验,探究混合型邻群环境对小麦幼... 详细信息

采取根系分泌物替代邻居植物的方法,设置近缘(品种内)、种内远缘(品种间)和种间远缘(物种间)3个亲缘关系处理,单一和混合亲缘型两个水平邻群复杂性处理以及两个小麦(Triticum aestivum)品种处理的交互实验,探究混合型邻群环境对小麦幼苗在亲缘识别中形态性状表达的影响。结果表明:亲缘关系和邻群复杂性对小麦幼苗的比叶面积和比根长具有显著影响,它们的交互作用对比叶面积、总根长、比根长和根系平均直径亦具有显著影响;与单一型近缘及单一型种内(或种间)远缘邻群处理相比,混合型种内(或种间)远缘邻群中小麦的比叶面积等形态性状或是处于更高(或更低)水平,或是无显著差异;小麦对亲缘识别的响应存在品种差异性;混合亲缘型邻群中小麦响应亲缘识别的形态性状表达并不处于由单一型近缘邻群向单一型远缘邻群过渡的中间水平。

关键词：小麦亲缘识别邻群复杂性根系分泌物比叶面积比根长

具p-Laplacian算子分数阶微分方程边值问题正解的存在唯一性

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数学学报（中文版） 2017年第5期60卷 751-762页

作者：何家维李成福湘潭大学数学与计算科学学院湖南411105

本文运用非紧性测度,给出了一类具p-Laplacian算子分数阶微分方程边值问题正解的存在性与唯一性.最后,用一个例子阐述我们的主要结果.

关键词：分数阶微分方程边值问题 p—Laplacian算子正解非紧性测度

Passive activity enhances residual control ability in patients with complete spinal cord injury

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Neural Regeneration Research 2025年第8期20卷 2337-2347页

作者： Yanqing Xiao Mingming Gao Zejia he jia Zheng Hongming Bai jia-Sheng Rao Guiyun Song wei Song Xiaoguang Li Beijing Key Laboratory for Biomaterials and Neural Regeneration Beijing Advanced Innovation Center for Biomedical EngineeringSchool of Biological Science and Medical EngineeringBeihang UniversityBeijingChina Department of Rehabilitation Evaluation China Rehabilitation Research CenterBeijingChina Cardiac Center Beijing Children’s HospitalCapital Medical UniversityBeijingChina The State Key Laboratory of Virtual Reality Technology and Systems Beihang UniversityBeijingChina Department of Rehabilitation Engineering China Rehabilitation Science InstituteBeijingChina

Patients with complete spinal cord injury retain the potential for volitional muscle activity in muscles located below the spinal injury ***,because of prolonged inactivity,initial attempts to activate these muscles may not effectively engage any of the remaining neurons in the descending pathway.A previous study unexpectedly found that a brief clinical round of passive activity significantly increased volitional muscle activation,as measured by surface *** this study,we further explored the effect of passive activity on surface electromyographic signals during volitional control tasks among individuals with complete spinal cord *** patients with chronic complete thoracic spinal cord injury were *** electromyography data from eight major leg muscles were acquired and compared before and after the passive activity *** results indicated that the passive activity led to an increased number of activated volitional muscles and an increased frequency of *** the cumulative root mean square of surface electromyography amplitude for volitional control of movement showed a slight increase after passive activity,the difference was not statistically *** findings suggest that brief passive activity may enhance the ability to initiate volitional muscle activity during surface electromyography tasks and underscore the potential of passive activity for improving residual motor control among patients with motor complete spinal cord injury.

关键词： complete spinal cord injury cycle training epidural electrical stimulation motor training passive activity physiological state spinal cord circuit surface electromyography volitional control task

Nitrogen‐doped graphene aerogel‐supported ruthenium nanocrystals for pH‐universal hydrogen evolution reaction

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Chinese Journal of Catalysis 2022年第6期43卷 1535-1543页

作者： Yu Ding Kai‐Wen Cao jia‐wei he Fu‐Min Li Hao Huang Pei Chen Yu Chen Key Laboratory of Macromolecular Science of Shaanxi Province Key Laboratory of Applied Surface and Colloid Chemistry(Ministry of Education)Shaanxi Key Laboratory for Advanced Energy DevicesShaanxi Engineering Lab for Advanced Energy TechnologySchool of Materials Science and EngineeringShaanxi Normal UniversityXi’an 710062ShaanxiChina School of Sustainable Energy Materials and Science Jinhua Advanced Research InstituteJinhua 321000ZhejiangChina

The design and synthesis of high‐performance and low‐cost electrocatalysts for the hydrogen evolution reaction(heR),a key half‐reaction in water electrolysis,are *** to their modest hydrogen adsorption energy,ruthenium(Ru)‐based nanomaterials are considered outstanding candidates to replace the expensive platinum(Pt)‐based heR *** this study,we developed an adsorption‐pyrolysis method to construct nitrogen(N)‐doped graphene aerogel(N‐GA)‐supported ultrafine Ru nanocrystal(Ru‐NC)nanocomposites(Ru‐NCs/N‐GA).The particle size of the Ru‐NCs and the conductivity of the N‐GA substrate can be controlled by varying the pyrolysis *** experiments reveal revealed that 10 wt%Ru‐NCs/N‐GA nanocomposites require overpotentials of only 52 and 36 mV to achieve a current density of 10 mA cm^(−2) in 1 mol/L HClO4 and 1 mol/L KOH electrolytes for heR,respectively,which is comparable to 20 wt%Pt/C *** from the ultrafine size and uniform dispersion of the Ru‐NCs,the synergy between Ru and the highly conductive substrate,and the anchoring effect of the N atom,the Ru‐NCs/N‐GA nanocomposites exhibit excellent activity and durability in the pH‐universal heR,thereby opening a new avenue for the production of commercial heR electrocatalysts.

关键词： Water electrolysis Graphene aerogels Nitrogen doping Ruthenium nanocrystals Hydrogen evolution reaction

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Protective effect of different medicinal parts of Lonicera japonica Thunb. on myocardial ischemic injury induced by isoproterenol in rats

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TMR Aging 2020年第3期2卷 74-79页

作者： jia-he wei Xia Feng Hua-Yi Liang Sheng-Bin Nong Wen jiao jia-Hui Gan Guang-Shun Han Chun-jia Huang Suo-Yi Huang Clinical Medical College of Youjiang Medical College for Nationalities Guangxi Baise533000China College of Pharmacy of Youjiang Medical College for Nationalities Baise 533000China College of Imaging of Youjiang Medical College for Nationalities Baise533000China Key Laboratory of Guangxi’s Colleges for the Study of Characteristic Ethnic Medicine in Youjiang RiverBasin Youjiang Medical College of NationalitiesBaise533000China

Background:To study the protective effect of different medicinal parts of honeysuckle on myocardial ischemia injury in ***:SD mice were randomly divided into 6 groups:the normal group,model group,compound salvia miltiorrhiza group,Lonicera japonica *** flower bud group,flower group,and the stem leaf *** were 8 rats in each group,including 4 males and 4 *** normal group and model group were given equal amount of distilled water,whereas the other dosage groups were given the appropriate drug by intragastric administration,continuous gavage for 14 *** the 12 days,in addition to the normal group were injected of the same amount of normal saline,the other groups were injected with 5g/*** of isoproterenol to establish the mouce mycardial ischemia model,its continuously *** detect the serum of AST,CK,CK-MB,LDH and the myocardial issue of Chinese super oxideismutase and malondialdehyde ***:Compared with normal group,the levels of AST,CK,CK-MB,cTn-I,LDH and malondialdehyde were significantly increased in the model group(Phe level of super oxideismutase decreased significantly(Phe levels of AST,CK,CK-MB,cTn-I,LDH and malondialdehyde in the serum of flower bud group,flower group and stem leaf group were significantly decreased(Phe decreasing level of flower bud group,flower,leaf group of AST,CK,CK-MB,cTn-I,LDH and malondialdehyde was flower bud group>flower>leaf group,the activity of super oxideismutase was obviously increased,and the activity level of super oxideismutase of flower bud group,flower group and stem leaf group was flower bud group>flower>leaf ***:In the myocardial ischemic injury model of rats induced by isoproterenol,Lonicera japonica *** a protective effect in all parts,and Lonicera japonica *** had the greatest protective effect.

关键词： Lonicera japonica Thunb. Different medicinal parts Isoprenaline Ischemia myocardial Mice

Recent progress in constructing fluorinated solid-electrolyte interphases for stable lithium metal anodes

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 270-291页

作者： Di Zhang Pengfei Lv wei Qin Xin he Yuanhua he Civil Aircraft Fire Science and Safety Engineering Key Laboratory of Sichuan Province College of Civil Aviation Safety EngineeringCivil Aviation Flight University of ChinaGuanghan 618307China School of Chemical Engineering Sichuan UniversityChengdu 610065China

Lithium metal batteries(LMBs)are emerging as a promising energy storage solution owing to their high energy density and specific ***,the non-uniform plating of lithium and the potential rupture of the solid-electrolyte interphase(SEI)during extended cycling use may result in dendrite growth,which can penetrate the separator and pose significant short-circuit *** a stable SEI is essential for the long-term operation of the ***-rich SEI has garnered significant attention for its ability to effectively passivate electrodes,regulate lithium deposition,and inhibit electrolyte *** the structural components and preparation methods of existing fluorinated SEI is crucial for optimizing lithium metal anode *** paper reviews the research on optimizing LiF passivation interfaces to protect lithium metal *** focuses on four types of compositions in fluorinated SEI that work synergistically to enhance SEI *** instance,combining compounds with LiF can further enhance the mechanical strength and ionic conductivity of the *** metals with LiF significantly improves electrochemical performance at the SEI/anode interface,with a necessary focus on reducing electron tunneling ***,incorporating polymers with LiF offers balanced improvements in interfacial toughness and ionic conductivity,though maintaining structural stability over long cycles remains a critical area for future *** alloys combined with LiF increase surface energy and lithium affinity,challenges such as dendrite growth and volume expansion *** summary,this paper emphasizes the crucial role of interfacial structures in LMBs and offers comprehensive guidance for future design and development efforts in battery technology.

关键词： LiF lithium metal anodes solid-electrolyte interphase interface cycling stability

吹扫捕集气相色谱-质谱法测定饮用水中挥发性有机物

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食品研究与开发 2017年第7期38卷 138-143页

作者：周静峰施家威何雄浙江医药高等专科学校食品学院浙江宁波315000 宁波市疾病预防控制中心浙江宁波315000

建立饮用水中55种挥发性有机物的吹扫捕集气相色谱质谱分析方法。采用吹扫捕集法对饮用水55种挥发性有机物进行富集,热解吸后导入气相色谱-质谱仪,并选用选择离子模式(SIM)进行检测。其回收率在87.90%~118.03%,其中40种化合物的两个水... 详细信息

建立饮用水中55种挥发性有机物的吹扫捕集气相色谱质谱分析方法。采用吹扫捕集法对饮用水55种挥发性有机物进行富集,热解吸后导入气相色谱-质谱仪,并选用选择离子模式(SIM)进行检测。其回收率在87.90%~118.03%,其中40种化合物的两个水平回收率均在90%~110.0%范围;相对标准偏差均小于10%;进样量为5 m L时,方法的定量下限(LOQ)范围为0.006μg/L^0.123μg/L(S/N=10)。该方法且具有富集效率高、无试剂再污染等特点,适用饮用水中55种挥发性化合物的分析测定。

关键词：吹扫捕集气相色谱-质谱法离子模式挥发性有机物