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Reflection on College English Vocabulary Teaching from Non-linguistic Context Perspective
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作者 刘芳 《海外英语》 2013年第8X期273-274,共2页
Vocabulary understanding is very important in English study; however, there exist some problems in the present college English vocabulary teaching, so it is necessary to propose some suggestions for it from the non-li... Vocabulary understanding is very important in English study; however, there exist some problems in the present college English vocabulary teaching, so it is necessary to propose some suggestions for it from the non-linguistic context perspectives to improve the students'vocabulary capacity. Based on the three non-linguistic contexts (situational context, cultural context and cognitive context), the passage suggests teachers pay much attention to the non-linguistic context while teaching. 展开更多
关键词 COLLEGE ENGLISH VOCABULARY TEACHING PROBLEMS sugge
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The Connotations of Non-linguistic Signs in Communication
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作者 郑映雪 《英语广场(学术研究)》 2012年第3期43-44,61,共3页
The silent communication of non-linguistic signs occurs in human cognition.This can be proved from four points of view:to introduce the definitions of linguistics,non-linguistic signs and meaning;all of them can commu... The silent communication of non-linguistic signs occurs in human cognition.This can be proved from four points of view:to introduce the definitions of linguistics,non-linguistic signs and meaning;all of them can communicate in human cognition through their comparison;the connotations of many kinds of non-linguistic signs in daily life;the position of non-linguistic signs in linguistic fields;from the above the conclusion can be reached. 展开更多
关键词 SEMIOTICS linguistic signs non-linguistic signs CONNOTATION
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Non-linguistic Factors and Strategies on the English-Chinese Translation of Humor
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作者 李艳 《海外英语》 2012年第4X期177-178,共2页
The text have an in-depth discussion of the non-linguistic factors on the English-Chinese Translation of humor,and according to different types of humor,summarized the corresponding translation strategies,including th... The text have an in-depth discussion of the non-linguistic factors on the English-Chinese Translation of humor,and according to different types of humor,summarized the corresponding translation strategies,including the naturalization,replacement and explanation. 展开更多
关键词 non-linguistic factors ENGLISH-CHINESE HUMOR TRANS
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BCCLR:A Skeleton-Based Action Recognition with Graph Convolutional Network Combining Behavior Dependence and Context Clues 被引量:4
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作者 Yunhe Wang Yuxin Xia Shuai Liu 《Computers, Materials & Continua》 SCIE EI 2024年第3期4489-4507,共19页
In recent years,skeleton-based action recognition has made great achievements in Computer Vision.A graph convolutional network(GCN)is effective for action recognition,modelling the human skeleton as a spatio-temporal ... In recent years,skeleton-based action recognition has made great achievements in Computer Vision.A graph convolutional network(GCN)is effective for action recognition,modelling the human skeleton as a spatio-temporal graph.Most GCNs define the graph topology by physical relations of the human joints.However,this predefined graph ignores the spatial relationship between non-adjacent joint pairs in special actions and the behavior dependence between joint pairs,resulting in a low recognition rate for specific actions with implicit correlation between joint pairs.In addition,existing methods ignore the trend correlation between adjacent frames within an action and context clues,leading to erroneous action recognition with similar poses.Therefore,this study proposes a learnable GCN based on behavior dependence,which considers implicit joint correlation by constructing a dynamic learnable graph with extraction of specific behavior dependence of joint pairs.By using the weight relationship between the joint pairs,an adaptive model is constructed.It also designs a self-attention module to obtain their inter-frame topological relationship for exploring the context of actions.Combining the shared topology and the multi-head self-attention map,the module obtains the context-based clue topology to update the dynamic graph convolution,achieving accurate recognition of different actions with similar poses.Detailed experiments on public datasets demonstrate that the proposed method achieves better results and realizes higher quality representation of actions under various evaluation protocols compared to state-of-the-art methods. 展开更多
关键词 Action recognition deep learning GCN behavior dependence context clue self-attention
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Palaeogene Sandstones of the Manika Plateau in Kolwezi (DR Congo): Sedimentological and Geochemical Characterization, Provenance, Palaeoalteration and Tectonic Context
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作者 Pierre T. Mashala Faidance Mashauri +1 位作者 Samy M. Malango Christian K. Mulopwe 《Open Journal of Geology》 CAS 2024年第7期705-722,共18页
This work presents a study of the Paleogene sandstones of the Manika plateau in Kolwezi, DR Congo. These sandstones belong to the “Grès polymorphes” group, which together with the overlying “Sables ocre” make... This work presents a study of the Paleogene sandstones of the Manika plateau in Kolwezi, DR Congo. These sandstones belong to the “Grès polymorphes” group, which together with the overlying “Sables ocre” makes up the Kalahari Supergroup. Sedimentological and geochemical analyses have enabled us to characterize these sandstones and determine their origin, the conditions of their formation and the tectonic context in which they were developed. The results show that the sandstones are quartz arenites with a high level of mineralogical, textural and chemical maturity. They are recycled sandstones, formed in an intracratonic sedimentary basin, in the context of a passive continental margin, after a long fluvial transport of sediments. These sandstones initially come from intense alteration of magmatic rocks with felsic composition, mainly tonalite-trondhjemite-granodiorite (TTG) complexes, in hot, humid palaeoclimatic conditions and oxidizing environments. 展开更多
关键词 Sandstone SEDIMENTOLOGY Geochemistry Palaeoalteration Tectonic context Manika Plateau DR Congo
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Extended context-based semantic communication system for text transmission
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作者 Yueling Liu Shengteng Jiang +5 位作者 Yichi Zhang Kuo Cao Li Zhou Boon-Chong Seet Haitao Zhao Jibo Wei 《Digital Communications and Networks》 SCIE CSCD 2024年第3期568-576,共9页
Context information is significant for semantic extraction and recovery of messages in semantic communication.However,context information is not fully utilized in the existing semantic communication systems since re-l... Context information is significant for semantic extraction and recovery of messages in semantic communication.However,context information is not fully utilized in the existing semantic communication systems since re-lationships between sentences are often ignored.In this paper,we propose an Extended Context-based Semantic Communication(ECSC)system for text transmission,in which context information within and between sentences is explored for semantic representation and recovery.At the encoder,self-attention and segment-level relative attention are used to extract context information within and between sentences,respectively.In addition,a gate mechanism is adopted at the encoder to incorporate the context information from different ranges.At the decoder,Transformer-XL is introduced to obtain more semantic information from the historical communication processes for semantic recovery.Simulation results show the effectiveness of our proposed model in improving the semantic accuracy between transmitted and recovered messages under various channel conditions. 展开更多
关键词 semantic communication extended context Transformer-XL
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MSC-YOLO:Improved YOLOv7 Based on Multi-Scale Spatial Context for Small Object Detection in UAV-View
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作者 Xiangyan Tang Chengchun Ruan +2 位作者 Xiulai Li Binbin Li Cebin Fu 《Computers, Materials & Continua》 SCIE EI 2024年第4期983-1003,共21页
Accurately identifying small objects in high-resolution aerial images presents a complex and crucial task in thefield of small object detection on unmanned aerial vehicles(UAVs).This task is challenging due to variati... Accurately identifying small objects in high-resolution aerial images presents a complex and crucial task in thefield of small object detection on unmanned aerial vehicles(UAVs).This task is challenging due to variations inUAV flight altitude,differences in object scales,as well as factors like flight speed and motion blur.To enhancethe detection efficacy of small targets in drone aerial imagery,we propose an enhanced You Only Look Onceversion 7(YOLOv7)algorithm based on multi-scale spatial context.We build the MSC-YOLO model,whichincorporates an additional prediction head,denoted as P2,to improve adaptability for small objects.We replaceconventional downsampling with a Spatial-to-Depth Convolutional Combination(CSPDC)module to mitigatethe loss of intricate feature details related to small objects.Furthermore,we propose a Spatial Context Pyramidwith Multi-Scale Attention(SCPMA)module,which captures spatial and channel-dependent features of smalltargets acrossmultiple scales.This module enhances the perception of spatial contextual features and the utilizationof multiscale feature information.On the Visdrone2023 and UAVDT datasets,MSC-YOLO achieves remarkableresults,outperforming the baseline method YOLOv7 by 3.0%in terms ofmean average precision(mAP).The MSCYOLOalgorithm proposed in this paper has demonstrated satisfactory performance in detecting small targets inUAV aerial photography,providing strong support for practical applications. 展开更多
关键词 Small object detection YOLOv7 multi-scale attention spatial context
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Modeling the Spatio-Temporal Dynamics of Local Context for a Contextualized Diffusion of Agroecological Intensification Options in Niger
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作者 Nouhou Salifou Jangorzo Maud Loireau +3 位作者 Abou-Soufianou Sadda Ousmane Sami Mari Abdoul-Aziz Saïdou Hassane Bil-Assanou Issoufou 《International Journal of Geosciences》 CAS 2024年第3期270-301,共32页
Spatio-temporal variability and dynamics in Sahelian agro-pastoral zones make each local situation a special case. These specificities must be considered to guide the dissemination of agricultural options with a view ... Spatio-temporal variability and dynamics in Sahelian agro-pastoral zones make each local situation a special case. These specificities must be considered to guide the dissemination of agricultural options with a view to sustainable development. The territorial scale of municipalities is not sufficient for this necessary contextualization;the scale of the “village terroir” seems to be a better option. This is the hypothesis we put forward in the framework of the Global Collaboration for Resilient Food Systems program (CRFS), i.e. local context is spatially defined by village terroir. The study is based on data collected through participatory mapping and surveys in “village terroirs” in three regions of Niger (Maradi, Dosso and Tillabéri). Then the links between farm managers and their cultivated land, as well as the spatio-temporal dynamics of local context are analyzed. This study provides evidence of the existence and functional usefulness of the village terroir for farmers, their land management and their activities. It demonstrates the usefulness of contextualizing agricultural options at this scale. Their analysis elucidates the links between “terroirs village” and the specific functioning of the agrosocio-ecosystems acting on each of them, thus laying the systemic and geographical foundations for a model of the spatio- temporal dynamics of “village terroirs”. This initial work has opened up new perspectives in modeling and sustainable development. 展开更多
关键词 NIGER Option by context Local Condition Complex System Multiscale Conceptual Modeling
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Context Capture在车辆三维建模中的应用
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作者 张雪冰 韦璐 《佳木斯大学学报(自然科学版)》 CAS 2024年第4期144-147,155,共5页
无人机倾斜摄影技术和Context Capture因具有自动化程度高、建模精度和效率高等特点而被广泛应用于三维建模中。本文使用无人机倾斜摄影技术和Context Capture分别对一辆SUV和一辆三厢轿车进行了三维建模,并对其进行了精度分析。结果表... 无人机倾斜摄影技术和Context Capture因具有自动化程度高、建模精度和效率高等特点而被广泛应用于三维建模中。本文使用无人机倾斜摄影技术和Context Capture分别对一辆SUV和一辆三厢轿车进行了三维建模,并对其进行了精度分析。结果表明,采用多条航线的无人机拍摄策略可以充分捕捉车辆各个侧面的细节信息。使用Context Capture构建的车辆三维模型细节清晰可辨,真实地反映了车辆外形。车辆特征点实测数据与航拍数据之间的最大相对误差为0.9%,确保了车辆三维建模的精度要求。 展开更多
关键词 三维建模 context Capture 无人机倾斜摄影 相机标定
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A Comparative Study of the L2 Pragmatic Competence of University Students in Hong Kong and the Chinese Mainland:The Contributions of Sociocultural Context and Linguistic Proficiency
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作者 Scott AUBREY Rod ELLIS 《Chinese Journal of Applied Linguistics》 2024年第3期371-392,524,共23页
This study investigates the differences in pragmatic competence between Hong Kong and Chinese mainland university students.Participants included 19 native speakers of English,115 Chinese mainland students,divided into... This study investigates the differences in pragmatic competence between Hong Kong and Chinese mainland university students.Participants included 19 native speakers of English,115 Chinese mainland students,divided into those who had spent time abroad in an English-speaking country(CM A)and those who had not(CM NA),and 97 Hong Kong students,divided into those from an English-medium secondary school(Hong Kong EMI)and those from a Chinese-medium school(Hong Kong CMI).Linguistic proficiency was measured by a C-test,and pragmatic competence by a Metapragmatic Knowledge Test,an Irony Test and a Monologic Role Play.Group scores were compared using ANCOVAs to control for differences in proficiency.The results point to a continuum of pragmatic competence—EMI>CMI>CM A>CM NA—reflecting the groups’access to English in real-life contexts.The differences between the Hong Kong groups and the Chinese mainland groups were clearest in those tests measuring processing capacity(i.e.,Irony Response Time and the Monologic Role Play).CM A,but not CM NA,performed as well as the Hong Kong groups on measures of metapragmatic awareness.The results are discussed in terms of Bialystok’s(1993)distinction between analyzed representation and control of processing. 展开更多
关键词 pragmatic competence social context Hong Kong the Chinese mainland metapragmatic knowledge processing capacity
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Heritage Communities in Consumer Contexts Spatial Production of Tourism Research-Take Qixian Zhao Yu Historical City as an Example
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作者 BAI Zhao-yi ZHU Jun-jie WEN Jia-hao 《Journal of Literature and Art Studies》 2024年第1期95-108,共14页
Taking Zhaoyu Historical City in Qixian County as an example,this paper explores the production process of tourism space in Zhaoyu Historical City in the context of consumption,based on Lefebvre's triadic dialecti... Taking Zhaoyu Historical City in Qixian County as an example,this paper explores the production process of tourism space in Zhaoyu Historical City in the context of consumption,based on Lefebvre's triadic dialectic theory.The study reveals that,driven by the development of tourism,subjects such as the government and planners possess absolute dominance over spatial representations,while residents demonstrate receptive and adaptive action strategies and social relations are reproduced,presenting a harmonious state.Further exploring the tourism community in the environmental performance of the subject of action,social relations,consumption demand,daily life practice,cultural capital,etc.,the daily life practice of the tourism community has transcended the original logic of tourism spatial production and has a certain extension.The mechanism analysis in this paper can help guide the healthy development of tourism space in the neighboring historical cities or communities and achieve the dual purpose of promoting the economic development of the community and heritage protection. 展开更多
关键词 spatial production theory tourism space consumption context heritage community ZhaoYu Historical City
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基于Context Capture多视角影像三维重建技术在藏品数字化中的应用
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作者 邓旭帅 《文物鉴定与鉴赏》 2024年第5期142-145,共4页
藏品是博物馆全部活动的物质基础。在博物馆数字化的浪潮中,藏品数字化是核心,而三维建模是藏品数字化的关键手段。多视角三维重建技术因其设备要求低、灵活性强、操作简单等优点成为藏品建模的重要手段。在考古领域,虽然Context Captur... 藏品是博物馆全部活动的物质基础。在博物馆数字化的浪潮中,藏品数字化是核心,而三维建模是藏品数字化的关键手段。多视角三维重建技术因其设备要求低、灵活性强、操作简单等优点成为藏品建模的重要手段。在考古领域,虽然Context Capture在空三精度、纹理映射质量、模型精度等方面具有优势,但由于其不能直接用于可移动文物建模,因此该软件应用较少。通过对采集到的影像预处理或对模型成果后期处理,使之能够用于文物藏品的建模,并对两种方式的优缺点进行比较。 展开更多
关键词 藏品数字化 context Capture 可移动文物建模
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Analysis of China’s New Energy Vehicle Export Competitiveness in a Dual-Carbon Context
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作者 Yuping Mei Qianqian Dong 《Proceedings of Business and Economic Studies》 2024年第6期1-8,共8页
In the context of the dual-carbon goals(carbon peaking and carbon neutrality),China’s new energy vehicle industry,as a key component of the green economy,has increasingly attracted international attention for its exp... In the context of the dual-carbon goals(carbon peaking and carbon neutrality),China’s new energy vehicle industry,as a key component of the green economy,has increasingly attracted international attention for its export competitiveness.Drawing on the Porter Diamond Model,this paper selects four major variables—R&D investment,production factors,demand factors,and spare parts services—to establish a linear regression equation.Through this model,the trade competitiveness of China’s new energy vehicles is analyzed in detail,and corresponding suggestions are proposed to enhance the competitiveness index.It is anticipated that Chinese new energy vehicle enterprises can strengthen overseas competitiveness by advancing core technology innovation,improving comprehensive industrial chain management,and diversifying sales channels. 展开更多
关键词 Dual-carbon context New energy vehicles Export competitiveness Publisher’s note Bio-Byword Scientific
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通用人工智能中的Long-Context技术分析
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作者 赵立东 郭敬明 蒋燕 《集成电路应用》 2024年第6期410-412,共3页
阐述通用人工智能中的Long-Context技术原理,提出该技术的解决方案,包括位置编码外推、注意力机制计算优化、模型结构优化和检索增强生成。分析硬件系统的瓶颈,探讨Long-Context在通用人工智能时代的发展趋势。
关键词 Long-context 位置编码 注意力机制 检索增强生成
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基于局部上下文融合的息肉语义分割模型
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作者 蔡体健 蒋嘉豪 +2 位作者 刘遵雄 赵师明 易晟权 《中国医学物理学杂志》 2025年第1期128-134,共7页
为了准确分割息肉,提出了局部上下文融合的分割模型,该模型引入局部上下文注意力机制来过滤掉无关的特征信息,并增强对重要区域的关注。通过多核扩展卷积捕获不同尺度的特征,以提高息肉边界分割的精度。引入金字塔上下文选择模块,利用... 为了准确分割息肉,提出了局部上下文融合的分割模型,该模型引入局部上下文注意力机制来过滤掉无关的特征信息,并增强对重要区域的关注。通过多核扩展卷积捕获不同尺度的特征,以提高息肉边界分割的精度。引入金字塔上下文选择模块,利用较浅层编码器特征补偿深层编码器丢失的低级信息,使模型能够适应各种大小的息肉。该模型在Kvasir-SEG、EndoScene和CVC-ClinicDB数据集上分别达到了97.67%、97.19%和99.23%的准确率,平均交并比分别为91.2%、88.31%和94.75%,比现有经典方法有更好的准确性和泛化性,验证了该模型在息肉分割任务中的优越性能。本文模型在息肉分割准确性方面得到提升,为息肉分割提供更为精准的辅助。 展开更多
关键词 结直肠癌 息肉分割 深度学习 扩展卷积 上下文信息
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海量层次信息的Focus+Context交互式可视化技术 被引量:7
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作者 任磊 王威信 +3 位作者 滕东兴 马翠霞 戴国忠 王宏安 《软件学报》 EI CSCD 北大核心 2008年第11期3073-3082,共10页
综述了海量层次信息可视化与Focus+Context技术的相关工作,针对海量层次信息可视化的交互问题,在嵌套圆可视化技术的基础上提出了基于上下文感知的Focus+Context交互式可视化技术.首先,基于外切圆排列方法提出对圆心进行三角网格剖分的... 综述了海量层次信息可视化与Focus+Context技术的相关工作,针对海量层次信息可视化的交互问题,在嵌套圆可视化技术的基础上提出了基于上下文感知的Focus+Context交互式可视化技术.首先,基于外切圆排列方法提出对圆心进行三角网格剖分的方法,为变形计算建立上下文;然后,针对变形计算前后上下文一致性问题,在三角网格邻居跟踪方法的基础上,提出了用于同层兄弟节点上下文感知的外切圆变形排列方法,以及用于父子节点上下文感知的嵌套圆迭代排列方法.实验结果表明。上述方法在实现焦点突出的鱼眼视图的同时,能够有效地解决Focus+Context交互式可视化的上下文感知问题.上述方法应用于文件系统海量层次信息的交互式可视化问题,提供了交互式可视化工具. 展开更多
关键词 人机交互 用户界面 信息可视化 Focus+context 三角网格 上下文感知 文件系统
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基于context模型的contourlet域图像去噪 被引量:5
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作者 刘镇弢 李涛 +1 位作者 杜慧敏 韩俊刚 《计算机科学》 CSCD 北大核心 2012年第3期243-245,共3页
在分析contourlet域系数分布特征的基础上提出了一种基于context模型的contourlet域图像去噪算法。算法的关键点在于:基于contourlet变换系数的分布特性,确定合适的去噪门限;利用context模型建立图像contourlet变换后的系数分类模型并... 在分析contourlet域系数分布特征的基础上提出了一种基于context模型的contourlet域图像去噪算法。算法的关键点在于:基于contourlet变换系数的分布特性,确定合适的去噪门限;利用context模型建立图像contourlet变换后的系数分类模型并根据分类使用不同的门限去噪。实验表明,本方法能较好地去除图像噪声,在提高去噪图像PSNR值和改善主观视觉效果方面都表现出了良好的性能。 展开更多
关键词 CONTOURLET变换 图像去噪 context模型
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基于Context模型的Shearlet变换地面微地震随机噪声压制 被引量:4
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作者 李月 邵丹 +1 位作者 张超 马海涛 《地球物理学报》 SCIE EI CAS CSCD 北大核心 2018年第12期4997-5006,共10页
地面微地震监测采集到的微地震信号通常能量微弱,信噪比低,如何提高微震数据的信噪比是数据处理的难题.Shearlet变换是一种新型的多尺度几何分析方法,具有敏感的方向性和较强的稀疏表示特性,能起到很好的随机噪声压制效果.由于地面微震... 地面微地震监测采集到的微地震信号通常能量微弱,信噪比低,如何提高微震数据的信噪比是数据处理的难题.Shearlet变换是一种新型的多尺度几何分析方法,具有敏感的方向性和较强的稀疏表示特性,能起到很好的随机噪声压制效果.由于地面微震数据的有效信号大多被淹没在噪声中,基于传统阈值的Shearlet变换(the traditional threshold-based Shearlet transform TST)只考虑到尺度或方向的阈值,在去噪过程中会过度扼制有效信号系数,造成有效信号能量损失.因而,本文建立Context模型,得到基于Context模型的Shearlet变换(the Context-model-based Shearlet transform CMST)方法,改进传统Shearlet阈值方法的不足.我们通过所建立的Context模型将能量相近的各方向系数划分为同一组,并分组估计阈值,分别处理各部分系数,达到微弱同相轴有效恢复的目的.通过TST及CMST的模拟实验与实际地面微震记录处理结果对比可知,本文方法在低信噪比条件下比对比方法更加有效地恢复地面微震数据的微弱信号,随机噪声压制效果明显,在-10dB条件下,提升信噪比18.3741dB. 展开更多
关键词 地面微地震监测 随机噪声 SHEARLET变换 context模型
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基于Context模型的小波变换阈值自适应图像去噪 被引量:4
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作者 薛乃玉 王玉德 赵焕利 《计算机工程与应用》 CSCD 2013年第4期227-230,共4页
根据噪声和信号的小波系数在不同分解尺度、不同方向上高频系数的分布不同,结合Context模型,提出基于Context模型的小波变换阈值自适应图像去噪算法。该算法通过对不同尺度和方向的小波分解系数应用不同的阈值方法进行去噪。实验表明,... 根据噪声和信号的小波系数在不同分解尺度、不同方向上高频系数的分布不同,结合Context模型,提出基于Context模型的小波变换阈值自适应图像去噪算法。该算法通过对不同尺度和方向的小波分解系数应用不同的阈值方法进行去噪。实验表明,方法能较好地去除图像噪声和保留图像边缘细节信息,在提高去噪图像信噪比值和改善视觉效果方面都表现出了良好的性能。 展开更多
关键词 图像去噪 context模型 小波变换 自适应
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具有一对零同态的Morita Context环(Ⅰ) 被引量:14
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作者 王尧 任艳丽 《吉林大学学报(理学版)》 CAS CSCD 北大核心 2006年第3期318-324,共7页
设(A,B,V,W,ψ,)是一个MoritaContext,且ψ与均为零同态,C=AVWB是相应的MoritaContext环.用经典环论方法,得到了C与A,B之间的一些性质关系,同时推广了形式三角矩阵环的一些结果.
关键词 MORITA context 正则环 广义Hopf环 CLEAN环 满足m-折稳定秩条件的环
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