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基于注意力融合网络的方面级多模态情感分类

计算机系统应用 2024年第2期33卷 94-104页

作者：冼广铭招志锋阳先平华南师范大学软件学院佛山528225

方面级多模态情感分类任务的一个关键是从文本和视觉两种不同模态中准确地提取和融合互补信息,以检测文本中提及的方面词的情感倾向.现有的方法大多数只利用单一的上下文信息结合图片信息来分析,存在对方面和上下文信息、视觉信息的相... 详细信息

方面级多模态情感分类任务的一个关键是从文本和视觉两种不同模态中准确地提取和融合互补信息,以检测文本中提及的方面词的情感倾向.现有的方法大多数只利用单一的上下文信息结合图片信息来分析,存在对方面和上下文信息、视觉信息的相关性的识别不敏感,对视觉中的方面相关信息的局部提取不够精准等问题,此外,在进行特征融合时,部分模态信息不全会导致融合效果一般.针对上述问题,本文提出一种注意力融合网络AF-Net模型去进行方面级多模态情感分类,利用空间变换网络STN学习图像中目标的位置信息来帮助提取重要的局部特征;利用基于Transformer的交互网络对方面和文本以及图像之间的关系进行建模,实现多模态交互;同时补充了不同模态特征间的相似信息以及使用多头注意力机制融合多特征信息,表征出多模态信息,最后通过Softmax层取得情感分类的结果.在两个基准数据集上进行实验和对比,结果表明AF-Net能获得较好的性能,提升方面级多模态情感分类的效果.

关键词：多模态情感分类空间变换网络交互网络相似信息注意力融合网络

Characterization of acute-on-chronic liver diseases: A multicenter prospective cohort study

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World Journal of Hepatology 2024年第5期16卷 809-821页

作者： Yuan-Yao Zhang Sen Luo Hai Li Shu-Ning Sun xian-Bo wang Xin Zheng Yan Huang Bei-Ling Li Yan-Hang Gao Zhi-ping Qian Feng Liu Xiao-Bo Lu Jun-ping Liu Hao-Tang Ren Yu-Bao Zheng Hua-Dong Yan Guo-Hong Deng Liang Qiao Yan Zhang Wen-Yi Gu Xiao-Mei xiang Yi Zhou Yi-Xin Hou Qun Zhang Yan Xiong Cong-Cong Zou Jun Chen Ze-Bing Huang Xiu-Hua Jiang Ting-Ting Qi Yuan-Yuan Chen Na Gao Chun-Yan Liu Wei Yuan Xue Mei Jing Li Tao Li Rong-Jiong Zheng Xin-Yi Zhou Jun Zhao Zhong-Ji Meng Department of Infectious Disease Institute of Biomedical ResearchRegulatory Mechanism and Targeted Therapy for Liver Cancer Shiyan Key LaboratoryHubei provincial Clinical Research Center for Precise Diagnosis and Treatment of Liver CancerTaihe HospitalHubei University of MedicineShiyan 442000Hubei ProvinceChina Department of Gastroenterology Renji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai 200120China Department of Infectious Diseases Southwest HospitalThe Third Military Medical University(Army Medical University)Chongqing 400000China Center of Integrative Medicine Beijing Ditan HospitalCapital Medical UniversityBeijing 100020China Department of Infectious Diseases Institute of Infection and ImmunologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430020Hubei ProvinceChina Department of Infectious Diseases Hunan Key Laboratory of Viral HepatitisXiangya HospitalCentral South UniversityChangsha 110051Hunan ProvinceChina Hepatology Unit Department of Infectious DiseasesNanfang HospitalSouthern Medical UniversityGuangzhou 510515Guangdong ProvinceChina Department of Hepatology The First Hospital of Jilin UniversityChangchun 130021Jilin ProvinceChina Department of Liver Intensive Care Unit Shanghai Public Health Clinical CentreFudan UniversityShanghai 200093China Tianjin Institute of Hepatology Nankai University Second People's HospitalTianjin 300192China Infectious Disease Center The First Affiliated Hospital of Xinjiang Medical UniversityUrumqi 830054Xinjiang Uygur Autonomous RegionChina Department of Infectious Diseases and Hepatology The Second Hospital of Shandong UniversityJinan 250000Shandong ProvinceChina State Key Laboratory for Diagnosis and Treatment of Infectious Diseases Collaborative Innovation Center for Diagnosis and Treatment of Infectious DiseaseThe First Affiliated HospitalZhejiang University School of MedicineHangzhou 310000Zhejiang ProvinceChina Department of Infectious Diseases The Thir

BACKGROUND Acute-on-chronic liver disease(AoCLD)accounts for the majority of patients hospitalized in the Department of Hepatology or Infectious *** To explore the characterization of AoCLD to provide theoretical guidance for the accurate diagnosis and prognosis of *** Patients with AoCLD from the Chinese Acute-on-Chronic Liver Failure(ACLF)study cohort were included in this *** clinical characteristics and outcomes,and the 90-d survival rate associated with each clinical type of AoCLD were analyzed,using the Kaplan-Meier method and the log-rank *** A total of 3375 patients with AoCLD were enrolled,including 1679(49.7%)patients with liver cirrhosis acute decompensation(LC-AD),850(25.2%)patients with ACLF,577(17.1%)patients with chronic hepatitis acute exacer-bation(CHAE),and 269(8.0%)patients with liver cirrhosis active phase(LC-A).The most common cause of chronic liver disease(CLD)was HBV infection(71.4%).The most common precipitants of AoCLD was bacterial infection(22.8%).The 90-d mortality rates of each clinical subtype of AoCLD were 43.4%(232/535)for type-C ACLF,36.0%(36/100)for type-B ACLF,27.0%(58/215)for type-A ACLF,9.0%(151/1679)for LC-AD,3.0%(8/269)for LC-A,and 1.2%(7/577)for *** HBV infection is the main cause of CLD,and bacterial infection is the main precipitant of *** most common clinical type of AoCLD is *** diagnosis and timely intervention are needed to reduce the mortality of patients with LC-AD or ACLF.

关键词： Acute-on-chronic liver disease Acute-on-chronic liver failure Liver cirrhosis Clinical features Prognosis

海姆泊芬光动力治疗成人鲜红斑痣的疗效及其影响因素分析:一项回顾性研究

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中华皮肤科杂志 2024年第7期57卷 595-600页

作者：刁萍韩成龙刘莲周慧李二龙蒋献四川大学华西医院皮肤性病科、四川大学疾病分子网络前沿科学中心免疫炎症研究院皮肤病学研究室成都610041

目的分析海姆泊芬光动力疗法(HMME-PDT)治疗中国成人鲜红斑痣的疗效及影响疗效的因素。方法回顾四川大学华西医院皮肤科2017年2月至2023年10月行HMME-PDT治疗的265例成年鲜红斑痣患者资料。患者静脉注射5~6.5 mg/kg海姆泊芬后,采用532 n... 详细信息

目的分析海姆泊芬光动力疗法(HMME-PDT)治疗中国成人鲜红斑痣的疗效及影响疗效的因素。方法回顾四川大学华西医院皮肤科2017年2月至2023年10月行HMME-PDT治疗的265例成年鲜红斑痣患者资料。患者静脉注射5~6.5 mg/kg海姆泊芬后,采用532 nm LED绿光照射,能量密度为100~130 J/cm^(2)(功率密度85~100 mW/cm^(2)),照射时间19~25 min。患者每2~6个月治疗1次。观察治疗区域每次治疗后的反应,最后1次治疗后至少2个月,评估临床疗效。采用卡方检验分析组间疗效差异。结果265例成人鲜红斑痣患者中,男女比例90∶175,18~56(26.48±6.88)岁,治疗1~8(2.67±1.33)次。102例(38.4%)基愈,74例(27.9%)显效,59例(22.2%)好转,30例(11.3%)无效,总有效率88.7%。在146例无增厚的皮损中,69例(47.3%)基愈,有效率92.5%;102例轻微增厚的皮损中,32例(31.4%)基愈,有效率87.3%;17例明显增厚的皮损中,1例基愈,11例有效。50例治疗次数>3次,28例基愈(56%),有效率100%;45例单次治疗,5例(11.1%)基愈,有效率68.9%。232例不伴随软组织增生的皮损,95例(40.9%)基愈,有效率88.8%;33例伴随软组织增生的皮损,7例(21.2%)基愈,有效率87.9%。不同皮损厚度、治疗次数以及是否伴随软组织增生的患者疗效差异有统计学意义(均P0.05)。治疗过程中和治疗后,患者有不同程度的肿胀、烧灼感、疼痛和瘙痒,经一般处理后均可缓解;10例(3.8%)出现瘢痕,予对症治疗;治疗过程中未见药物过敏、肝肾功能损害等系统性不良反应。结论HMME-PDT治疗成人鲜红斑痣安全有效,皮损增厚和软组织增生与治疗效果相关,随着治疗次数增多疗效更好。

关键词：葡萄酒色痣血卟啉光照疗法海姆泊芬光动力成人治疗结果影响因素

A novel hole cold-expansion method and its effect on surface integrity of nickel-based superalloy

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Journal of Materials Science & Technology 2020年第24期59卷 129-137页

作者： xianCao ping ZhangShuang Liu Xue-Lin Lei Run-Zi wang xian-Cheng Zhang Shan-Tung Tu Key Laboratory of Pressure Systems and Safety Ministry of EducationSchool of Mechanical and Power EngineeringEast China University of Science and TechnologyShanghai 200237China

Preferred surface integrity around the hole wall is one of the key parameters to ensure the optimized performance of hole components for nickel-based *** novel hole cold expansion technique introduced in this work involves the laser texturing process(LTP)followed by the Hertz contact rotary expansion process(HCREP),where the cylindrical sleeve is the critical component connecting the abovementioned two *** purpose of LTP is to obtain the most optimized strengthened cylindrical sleeve surface,preparing for the following ***,the HCREP acts on the nickel-based hole components by the rotary extruding movements of the strengthened sleeve and conical mandrel *** compared to the as-received GH4169 material,the surface integrity characterization for the strengthened hole shows that a plastic deformation layer with finer grains,higher micro-hardness,deeper compressive residual stress(CRS)distribution and lower surface roughness is formed at the hole *** addition,transmission electron microscope(TEM)observations reveal the microstructure evolution mechanism in the strengthened *** refinement near the hole wall is regarded as the fundamental reason for improving the surface integrity,where the aggregated dislocations and recombined dislocation walls can be clearly observed.

关键词： Cold expansion process Laser texturing process Surface integrity Microstructure evolution

Cationic CO_(2)-based Waterborne Polyurethane with High Solid Content and Excellent Ageing Resistance

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Chinese Journal of Polymer Science 2022年第10期40卷 1183-1192,I0008页

作者： Hong-Ming Zhang Guang-ping Han Wan-Li Cheng Shun-Jie Liu xian-Hong wang Key Laboratory of Bio-based Material Science and Technology(Ministry of Education) Northeast Forestry UniversityHarbin 150040China Key Laboratory of Polymer Ecomaterial Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 13022China

High solid content CO_(2)-based cationic waterborne polyurethanes(CWPUs)were prepared using CO_(2)-polyols as soft segment and Nmethyl diethanolamine(MDEA)as hydrophilic *** resulting stable aqueous dispersion displayed a high solid content of 52%with a low MDEA loading of 3.52 wt%.This novel structural CWPU can provide excellent adhesive strength,whose T-peel strength could reach 173.48N/5cm,20%higher than that of ester-based cationic waterborne polyurethane(87.55 N/5cm).The CO_(2)-based CWPU film showed only 2 wt%swelling percentage after 240 min immersion in water,and no change was observed during its immersion in 5 wt%sodium hydroxide *** tensile strength of CO_(2)-WPUs dropped slowly to 91.2%after 480 min immersion in a 5 wt%sodium hydroxide solution,whereas that of esterbased CWPUs dropped quickly to 32%after 240 min and their mechanical properties were lost after 360 min ***,the retention of the tensile strength of the CO_(2)-CWPUs was 81.5%even after 720 min immersion in 10 wt%H_(2)O_(2) solution,while it was only ca.38%for the ester-based *** results indicated that the cationic CO_(2)-based CWPU may be promising waterborne adhesive with outstanding ageing resistance due to its synergistic effect from carbonate and ether groups of CO_(2)-polyol structure.

关键词： Cationic waterborne polyurethane CO_(2)-polyol High solid content Hydrolysis/oxidation resistance

应用超声造影及MRI诊断下腔静脉离断伴左髂外静脉半奇静脉异位连接1例

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中国临床医学影像杂志 2024年第5期35卷 373-374页

作者：蒋贤平陈丽羽熊丹蕾浙江中医药大学浙江杭州310053 浙江省肿瘤医院中国科学院基础医学与肿瘤研究所浙江杭州310022

病例女,13岁,因“皮肤弥漫性红斑”到外院就诊,考虑先天性皮肤血管瘤或鲜红血痣,超声示“肝内等回声团,首先考虑肝脏来源,后腹膜来源不排除”,CT示“右上腹部肝脏与上腔静脉间见巨大肿块影,肿瘤性病变考虑”,为求进一步诊治,遂来我院。... 详细信息

病例女,13岁,因“皮肤弥漫性红斑”到外院就诊,考虑先天性皮肤血管瘤或鲜红血痣,超声示“肝内等回声团,首先考虑肝脏来源,后腹膜来源不排除”,CT示“右上腹部肝脏与上腔静脉间见巨大肿块影,肿瘤性病变考虑”,为求进一步诊治,遂来我院。患者一般情况好,无腹痛腹胀、发热畏寒、乏力纳差等不适。饮食可,大小便无殊,体质量无下降。皮肤弥漫性红斑,余无异常。实验室检查消化道肿瘤标志物及生化均为阴性。二维超声显示:肝脏尾状叶区域可见大小约10.6 cm×5.6 cm的等回声团(图1),边界清,内可见脉管结构回声,一条宽约0.7 cm主干及若干分支,在团块内自然延伸,逐渐变细,主干向外似与下腔静脉连通。CDFI及PW显示脉管结构内为入肝静脉血流(图2),肝静脉内为出肝静脉血流。门静脉及其余肝脏扫查未见明显异常。

关键词：腔静脉,下肝疾病超声检查磁共振成像

Thermal Entanglement in the Spin-S Heisenberg XYZ Model

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Chinese Physics Letters 2014年第4期31卷 5-8页

作者： LI Hu LI Da-Chuang wang xian-ping YANG Ming CAO Zhuo-Liang School of Physics Material Science Anhui University Hefei 230039 School of Electronic and Information Engineering Hefei Normal University Hefei 230601 Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics University of Science and Technology of China Hefei 230026 Department of Physics Fuyang Teachers College Fuyang 236041

The thermal entanglement in the spin-S Heisenberg XYZ model is studied in detail by using the entanglement measure of negativity. The effects of spin on the thermal entanglement, the threshold temperature, the critical uniform external magnetic field, the nonuniform external magnetic field and the＇, entanglement extremum are discussed, respectively. It is shown that with increasing spin, the entanglement will increase, and then decrease slowly. In addition, we find that entanglement will approach a constant Nc with the increase of DM interaction, the constant increases with the increase of spin, and both the threshold temperature Tc and critical uniform external magnetic field Bc will increase with the increasing spin. Thus high-spin system can inhibit the influence of the external environment better.

关键词： SPIN-spin interactions HEISENBERG model MAGNETIC fields QUANTUM dots BOLTZMANN'S equation

Some issues in diagnostics of solar chromospheric magnetic fields with the Mg b_2 line

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Research in Astronomy and Astrophysics 2014年第2期14卷 193-206页

作者： xian-Yong Bai Yuan-Yong Deng Jiang-Tao Su Guo-ping wang Key Laboratory of Solar Activity National Astronomical ObservatoriesChinese Academy of Sciences University of Chinese Academy of Sciences State Key Laboratory of Space Weather Chinese Academy of Sciences

Up to now, exact measurements of chromospheric magnetic fields have not been as successful as those done in the photosphere. We are currently engaging in diagnostics of chromospheric magnetic fields with the Mg b2 line by employing the Multi-Channel Solar Telescope at Huairou Solar Observing Station. Therefore, how to improve accuracy in the measurement is the main issue of our present study. To this end, we first study linear calibration coefficients for longitudinal and transverse components of chromospheric fields, which vary with wavelength, in the case of a weak field assumption. Then the polarization crosstalk introduced by instruments is analyzed in detail with two numerical simulation methods. Comparisons of the po- larization signals between cases with and without correction are presented. The result indicates that polarization accuracy is greatly improved after crosstalk correction.

关键词： Sun: chromospheric -- magnetic fields -- spectral profiles: radiative transfer

Targeting mesenchymal stem cell therapy for severe pneumonia patients

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World Journal of Stem Cells 2021年第2期13卷 139-154页

作者： Guy Lam Yuan Zhou Jia-xian wang Yat-ping Tsui School of Biomedical Sciences University of Hong KongHong Kong 999077China Research and Development Help Therapeutics Co.Ltd.Nanjing 211100Jiangsu ProvinceChina

Pneumonia is the inflammation of the lungs and it is the world’s leading cause of death for children under 5 years of *** latest coronavirus disease 2019(COVID-19)virus is a prominent culprit to severe *** the pandemic running rampant for the past year,more than 1590000 deaths has occurred worldwide up to December 2020 and are substantially attributable to severe pneumonia and induced cytokine *** therapeutic approaches in addition to the vaccines and drugs under development are hence greatly sought *** harnessing stem cells and their derivatives have been established by basic research for their versatile capacity to specifically inhibit inflammation due to pneumonia and prevent alveolar/pulmonary fibrosis while enhancing antibacterial/antiviral immunity,thus significantly alleviating the severe clinical conditions of *** recent clinical trials,mesenchymal stem cells have shown effectiveness in reducing COVID-19-associated pneumonia morbidity and mortality;positioning these cells as worthy candidates for combating one of the greatest challenges of our time and shedding light on their prospects as a nextgeneration therapy to counter future challenges.

关键词： Pneumonia Human mesenchymal stem cells Immunomodulation Alveolar protection Pandemic challenge Clinical trials