Rare-aware attention network for image–text matching     

《Information processing & management》2023,60(3):103280

Image and text matching bridges visual and textual modality differences and plays a considerable role in cross-modal retrieval. Much progress has been achieved through semantic representation and alignment. However, the distribution of multimedia data is severely unbalanced and contains many low-frequency occurrences, which are often ignored and cause performance degradation, i.e., the long-tail effect. In this work, we propose a novel rare-aware attention network (RAAN), which explores and exploits textual rare content for tackling the long-tail effect of image and text matching. Specifically, we first design a rare-aware mining module, which contains global prior information construction and rare fragment detector for modeling the characteristic of rare content. Then, the rare attention matching utilizes prior information as attention to guide the representation enhancement of rare content and introduces the rareness representation to strengthen the similarity calculation. Finally, we design prior information loss to optimize the model together with the triplet loss. We perform quantitative and qualitative experiments on two large-scale databases and achieve leading performance. In particular, we conduct 0-shot test for rare content and improve rSum by 21.0 and 41.5 on Flickr30K (155,000 image and text pairs) and MSCOCO (616,435 image and text pairs), demonstrating the effectiveness of the proposed method for the long-tail effect.  相似文献   

国家治理现代化视域下我国体育智库的责任与担当     

杨涛 《河北体育学院学报》2020,34(6):50-55

党的十九届四中全会明确提出了“坚持和完善中国特色社会主义制度、推进国家治理体系和治理能力现代化的重大意义和总体要求”。在新的历史时期，我国体育智库的新使命在于推进体育强国、健康中国和体育治理现代化建设。基于此，采用文献资料法和逻辑分析法，从外部和内部两个角度，对我国体育智库的责任和担当进行深入探讨。认为体育智库对内要注重更新管理体制，完善运行机制，建设和优化人才培养体系；对外要通过科研成果转化实现体育产业高质量发展，重塑体育治理生态，提升国家体育文化软实力和国际体育地位硬实力，促进体育融合发展，最终服务于我国体育治理体系和治理能力现代化。  相似文献   

高校培育和践行社会主义核心价值观动力机制研究     

《信阳师范学院学报(哲学社会科学版)》2018,(3):59-63

构建培育和践行社会主义核心价值观动力机制,有利于高校科学有效、深入持久地推进社会主义核心价值观教育,有利于实现立德树人的根本任务,有利于培育安定团结与和谐有序的办学育人环境。构建培育和践行社会主义核心价值观动力机制,应着力构建主体驱动机制,增强主体的主导力;构建客体认同机制,增强客体的受动力;构建动力保障机制,增强机制运行的可持续性。动力机制的构建应坚持可行性、科学性、创新性、权威性原则。  相似文献   

高校体育场馆对外开放突发事件的应急管理机制研究     

王骏  刘海荣  何宁宁  廖大伟 《沈阳体育学院学报》2020,(2):125-132

运用文献资料、实地调查等研究方法,对我国高校体育场馆对外开放突发事件应急管理现状进行调查分析。发现目前我国高校体育场馆对外开放过程中,存在缺乏突发事件应急预案的研制、对安全风险评估不足、缺乏急救设施的配置、场馆现场管理人员缺乏应急管理的培训与演练、场馆现场管理人员数量不足的问题。在高校体育场馆突发事件应急管理发展现状基础上,依托应急管理理论与应急救援理论,架构由突发事件识别与评估模块、决策系统模块、应急救助体系模块、应急预案选择模块、应急救援的执行模块所组成的我国高校体育场馆对外开放突发事件应急管理机制。建议:完善场馆管理规章制度,形成场馆对外开放突发事件应急长效管理机制;加强员工的应急管理理论培训与技能学习;制定各类应急预案并进行演练;保持突发事件应急救援稳定的对外联系畅通。  相似文献   

Knowledge-guided multi-granularity GCN for ABSA     

《Information processing & management》2023,60(2):103223

Aspect-based sentiment analysis aims to determine sentiment polarities toward specific aspect terms within the same sentence or document. Most recent studies adopted attention-based neural network models to implicitly connect aspect terms with context words. However, these studies were limited by insufficient interaction between aspect terms and opinion words, leading to poor performance on robustness test sets. In addition, we have found that robustness test sets create new sentences that interfere with the original information of a sentence, which often makes the text too long and leads to the problem of long-distance dependence. Simultaneously, these new sentences produce more non-target aspect terms, misleading the model because of the lack of relevant knowledge guidance. This study proposes a knowledge guided multi-granularity graph convolutional neural network (KMGCN) to solve these problems. The multi-granularity attention mechanism is designed to enhance the interaction between aspect terms and opinion words. To address the long-distance dependence, KMGCN uses a graph convolutional network that relies on a semantic map based on fine-tuning pre-trained models. In particular, KMGCN uses a mask mechanism guided by conceptual knowledge to encounter more aspect terms (including target and non-target aspect terms). Experiments are conducted on 12 SemEval-2014 variant benchmarking datasets, and the results demonstrated the effectiveness of the proposed framework.  相似文献   

从“国家意志”到“地方行动”:先秦射礼社会治理模式探析     

张君贤  戴国斌 《沈阳体育学院学报》2020,(1):138-144

以社会控制理论的方法探析先秦射礼的社会治理行为,认为:基于权威关系、核心利益以及情感号召基础上的强制、交换、动员等社会控制要素,在从大射仪到乡射礼的社会治理路径上存在着不同的分配与行使机制。"君与"的大射仪通过意识形态的施压、推行"知识体系"和树立"模范"标杆为强制手段,以"身份"和"资本"交换贵族的"中"与"忠",结合内在动机的激励式动员,达成了表彰"国家意志"的准集权式强制型治理形态;而"君不与"后的乡射礼则是立足政策规范,以"兴贤能"的号召、塑造"社会背景"以及引导自我操控等动员形式为举措,辅之以"禄仕"和"射义"作为民众"道德"与"君子"的回馈而实现的体现"地方行动"的分权式动员型治理风格。从"国家意志"到"地方行动",先秦射礼践行了一种准集权式的强制型与分权式的动员型治理共生共存的社会治理模式。  相似文献   

高职院校顶岗实习管理机制构建探析     

李耀辉  许春龙  赵成 《苏州市职业大学学报》2021,(1)

顶岗实习是实现高职人才培养目标的重要途径。鉴于当前高职顶岗实习中学校、学生及教师各层面都存在的问题,重新设计了顶岗实习的流程体系,通过校、企、师、生、家五方联动,构建了五途径保障实习岗位、两维度驱动实习成效、四层次规范实习管理、三主体强化实习评价的“五二四三”顶岗实习模式,实现学生、企业、教师、家长、导师和学校的六方共赢。  相似文献   

肌筋膜疼痛综合征诱因及外治手段研究进展     

林键杰  张翔 《体育科技文献通报》2020,(4):28-31

不良生活习惯和伤后康复不佳导致的肌筋膜疼痛综合征已经成为当前影响人们生活质量的因素之一。本文运用文献资料法,梳理肌筋膜疼痛综合征的诱因及外治(非内服药物治疗)手段,探究其干预手段的疗效,由病因入手,研究最佳干预方法。综合研究表明:(1)肌筋膜疼痛综合征病因包括:骨骼肌及筋膜外伤、风寒入侵机体、慢性劳损、局部肌筋膜慢性炎症损伤等;(2)目前对肌筋膜疼痛综合征康复的方法主要以针刺和温和灸为主,本文纳入针刺治疗和温和灸治疗有效率高达89.5%和100%;(3)其发病的常见部位为腰背部及肩颈部,不同部位、不同病因的肌筋膜疼痛综合征应采取不同的治疗方式,复合治疗方法比单一手段干预效果更佳。  相似文献   

Where are all the males? Gender-specific typologies of childhood adversity based on a large community sample     

《Child abuse & neglect》2019

BackgroundMethodological issues have been identified when quantifying exposure to adversity and abuse. To address a single type may obscure covarying effects. To sum multiple exposures gives equal weight to each. Latent class analysis (LCA) addresses this by identifying homogenous subpopulations. Most studies using LCA have pooled gender data in spite of evidence that the nature and frequency of exposure differs by gender. Males report more interpersonal abuse, females report more of other exposures, particularly sexual.ObjectiveThis study aimed to identify if stratifying data by gender resulted in different profiles of adversity/abuseParticipants and setting: The National Epidemiologic Survey on Alcohol and Related Conditions (NESARC) wave II, a large community-based survey, nationally representative of the US population.MethodThis study used 14 indicators of childhood adversity as the basis for LCA.ResultsThe number and nature of classes differed by gender. The best solution for females was 4-class: a low risk class; a class at higher risk of sexual abuse; a class at higher risk of physical abuse; a class at higher risk of combined physical and sexual abuse. The best solution for males had only 3-classes; a low risk class, a class at higher risk of sexual abuse; a class at higher risk of physical abuse. The combined dataset resulted in a solution similar to the female solution.ConclusionThe importance of developing models for males and females separately was evidenced by the male and female classes being differentially associated with mental health variables.  相似文献   

工作资源对高校图书馆员敬业度影响机制的实证研究     

康超群  杨晴 《图书情报工作》2019,63(17):69-76

[目的/意义]探讨工作资源对高校图书馆员敬业度的影响与机制，以期为高校图书馆实施人力资源管理和提升图书馆员的敬业度提供参考。[方法/过程]选取湖南各高校图书馆的358名馆员为研究对象，考察工作资源对高校图书馆员敬业度的预测作用以及心理资本与组织承诺在两者之间的中介作用。[结果/结论]描述性统计与差异分析、相关分析和逐步回归分析的结果表明，不同性别的高校图书馆员在组织承诺量表得分上存在显著性差异，男性馆员组织承诺得分显著高于女性，不同性别馆员在其余得分上均不存在显著性差异。不同婚姻、年龄、学历、职位、职称者在各量表得分上均不存在显著性差异。高校图书馆员工作资源、心理资本、组织承诺与敬业度的两两相关都达到统计显著性水平。工作资源对高校图书馆员的敬业度具有正向预测作用，心理资本和组织承诺能够在工作资源对高校图书馆员敬业度的影响中起部分中介作用。丰富高校图书馆员工作资源，增进其组织支持感，增强其心理资本和组织承诺，是促进高校图书馆员敬业度提升的有效路径。  相似文献