搜索到211729篇“ EXAMPLE“的相关文章
样例变异性对问题解决学习中测试效应的影响
2024年
以240名大学生为被试,以数学应用题为实验材料,采用测试效应的经典研究范式,考察样例变异性对问题解决学习中测试效应的影响。结果发现:在即时测试中,相同样例条件下(低样例变异性)出现测试效应,不同样例条件下(高样例变异性)未出现测试效应;在延迟测试中,无论样例变异性高低,重学和测试的效果都无显著差异。该结果表明:在问题解决学习中,高样例变异性会削弱测试效应,但是这种削弱作用在延迟测试中会消失。研究结果可为问题解决学习中学习和测试的合理安排提供科学依据。
王利敏陆哲毅邢强
关键词:样例学习
A prompt-based approach to adversarial example generation and robustness enhancement
2024年
Recent years have seen the wide application of natural language processing(NLP)models in crucial areas such as finance,medical treatment,and news media,raising concerns about the model robustness and vulnerabilities.We find that prompt paradigm can probe special robust defects of pre-trained language models.Malicious prompt texts are first constructed for inputs and a pre-trained language model can generate adversarial examples for victim models via mask-filling.Experimental results show that prompt paradigm can efficiently generate more diverse adversarial examples besides synonym substitution.Then,we propose a novel robust training approach based on prompt paradigm which incorporates prompt texts as the alternatives to adversarial examples and enhances robustness under a lightweight minimax-style optimization framework.Experiments on three real-world tasks and two deep neural models show that our approach can significantly improve the robustness of models to resist adversarial attacks.
Yuting YANGPei HUANGJuan CAOJintao LIYun LINFeifei MA
关键词:ROBUSTNESS
Parallel Image Processing: Taking Grayscale Conversion Using OpenMP as an Example
2024年
In recent years, the widespread adoption of parallel computing, especially in multi-core processors and high-performance computing environments, ushered in a new era of efficiency and speed. This trend was particularly noteworthy in the field of image processing, which witnessed significant advancements. This parallel computing project explored the field of parallel image processing, with a focus on the grayscale conversion of colorful images. Our approach involved integrating OpenMP into our framework for parallelization to execute a critical image processing task: grayscale conversion. By using OpenMP, we strategically enhanced the overall performance of the conversion process by distributing the workload across multiple threads. The primary objectives of our project revolved around optimizing computation time and improving overall efficiency, particularly in the task of grayscale conversion of colorful images. Utilizing OpenMP for concurrent processing across multiple cores significantly reduced execution times through the effective distribution of tasks among these cores. The speedup values for various image sizes highlighted the efficacy of parallel processing, especially for large images. However, a detailed examination revealed a potential decline in parallelization efficiency with an increasing number of cores. This underscored the importance of a carefully optimized parallelization strategy, considering factors like load balancing and minimizing communication overhead. Despite challenges, the overall scalability and efficiency achieved with parallel image processing underscored OpenMP’s effectiveness in accelerating image manipulation tasks.
Bayan AlHumaidanShahad AlghofailyMaitha Al QhahtaniSara OudahNaya Nagy
关键词:OPENMP
Application of Secondary Logging Interpretation—Taking Yan 9 Reservoir in X Area as an Example
2024年
Logging data and its interpretation results are one of the most important basic data for understanding reservoirs and oilfield development. Standardized and unified logging interpretation results play a decisive role in fine reservoir description and reservoir development. Aiming at the problem of the conflict between the development effect and the initial interpretation result of Yan 9 reservoir in Hujianshan area of Ordos Basin, by combining the current well production performance, logging, oil test, production test and other data, on the basis of making full use of core, coring, logging, thin section analysis and high pressure mercury injection data, the four characteristics of reservoir are analyzed, a more scientific and reasonable calculation model of reservoir logging parameters is established, and the reserves are recalculated after the second interpretation standard of logging is determined. The research improves the accuracy of logging interpretation and provides an effective basis for subsequent production development and potential horizons.
Jiayu Li
Principles of Technology for Bottling Medicinal Mineral Waters of Sairme Using the Example of Source №3a
2024年
Sairme mineral water, one of the famous mineral waters in Georgia, is renowned for its exceptional healing properties. The distinctiveness and therapeutic benefits of the naturally sourced mineral water, known as “Sairme”, stem from its rich array of microelements, notably including iron and manganese. Since 1948, the bottling of Sairme mineral water has been a prominent activity. Named after the Sairme deposit, this mineral water is packaged in various formats to cater to diverse consumer preferences. The bottling process involves transporting the mineral water from wells to the bottling plant through pipelines. Prior to bottling, the mineral water undergoes meticulous processing stages in adherence to current Georgian and international regulations. This process ensures that the concentration of trace elements in the bottled water is minimized, maintaining its purity and quality. Given the importance of preserving the microelements present in bottled mineral water, our research is dedicated to optimizing the technological process. Our objective is to safeguard the valuable microelements while ensuring the highest standards of quality and safety in the final product.
Irina NikolaishviliGiorgi Kvartskava
关键词:SEASONALITY
微探仁爱版初中英语教材中“Example”部分的教学策略
2024年
仁爱版初中英语教材中的“Example”部分是听说课教学的重要内容之一,也是学生在语言实践中迁移和运用知识的集中体现。如何提高“Example”部分教学内容的指导性、针对性和有效性是一线教师关注的焦点。文章分析了“Example”部分内容教学存在的问题,提出以主题意义为导向、深度融合教学与评价、合理分配教学时间和巩固教学成果等教学策略,以期提升“Example”部分的教学成效,逐步培养学生的英语学科核心素养。
王秀英
关键词:初中英语
Influence of Interrupted Childhood Biographies on Health Development: Evaluation of the Scientific Literature on the Example of Being Taken into Care*
2024年
Background: An interrupted family history, as is the case after taking someone into care, can complicate collecting family anamnesis data. In addition, the interrupted family history itself could be considered part of a person’s risk profile. Aim and methods: Literature analysis was conducted to examine whether there are scientific studies on health development after placement in out-of-home-care in order to recognise any existing medical characteristics that may be relevant for internal medical care. Results: There are few scientific publications on the health development of people after being placed in out-of-home-care. Direct reactions to the stress of being taken into custody include nausea and fever. However, effects that go beyond the acute situation and last into adulthood have also been described, such as AD(H)D, asthma, diabetes, cancer, hypertension and cardiovascular diseases (myocardial infarction, stroke), epilepsy and increased overall mortality in adulthood. Studies show that not only previous experience but also the stress of being taken into care is triggers for this. Conclusion: Information about a previous institutionalisation can hence be important for internal medical practice. The available scientific literature shows heterogeneous study methodology and no group of people with experience of out-of-home-placement has yet been scientifically accompanied for a long time period. Further studies on this could help to better weigh up the consequences of omitting and conducting an intervention for child/youth protection as well as to improve the medical care for this group of people.
Manuela LodererUrsula Gresser
Field and Laboratory Study of Accumulated Debrisflow-Forming Solid Mass Sediment on the Example of River Chokheltkhevi (Mtskheta-Mtianeti Region, Georgia)
2024年
The paper presents the results of the field and laboratory research carried out in the Chokheltkhevi river basin, according to which the sediment-forming solid mass accumulated in the bed of the Chokhelthkhevi river was recorded and its granulometric and chemical composition, as well as physical-mechanical characteristics, were studied. Based on the results of the research, it can be said that in the debrisflow channel of the Chokheltkhevi River, coarse and sandy-clay soils are mainly accumulated, which represent an unstable mass for the expected debrisflow in the gorge, which, together with other geological, hydrological and climatic factors, helps to increase the scale of the expected ecological danger. According to the results of the laboratory research, it can be concluded that the soil accumulated in the drainage channel is low in ion concentration, and the humus content in it is minimal, which indicates the possibility of easy displacement of the solid mass accumulated in the drainage channel and, accordingly, the risk of a catastrophic debrisflow.
Zurab VarazashviliZurab KakuliaGeorge GaprindashviliGoga ChakhaiaIrakli Ramishvili
关键词:GEOLOGYMUDFLOWLABORATORY
图像对抗样本检测综述被引量:1
2024年
深度神经网络是人工智能领域的一项重要技术,它被广泛应用于各种图像分类任务.但是,现有的研究表明深度神经网络存在安全漏洞,容易受到对抗样本的攻击,而目前并没有研究针对图像对抗样本检测进行体系化分析.为了提高深度神经网络的安全性,针对现有的研究工作,全面地介绍图像分类领域的对抗样本检测方法.首先根据检测器的构建方式将检测方法分为有监督检测与无监督检测,然后根据其检测原理进行子类划分.最后总结对抗样本检测领域存在的问题,在泛化性和轻量化等方面提出建议与展望,旨在为人工智能安全研究提供帮助.
周涛周涛徐东伟徐东伟徐东伟
关键词:图像分类
针对文本分类对抗样本的防御技术
2024年
虽然文本分类对抗样本的防御技术在相应的工作中取得了较好的效果,但是防御技术在检测词级和句子级的对抗样本时效果不佳,因此,如何利用防御技术提高目标模型的鲁棒性(Robust)已是目前学术界关注的问题为此提出了一种新的运算法,使用了单词的重要性分数及检测错误字的概率来定位样本中的对抗字。结果表明:目标模型的分类准确率由原来平均14.7%提高到平均89.2%,改善了文本分类对抗样本的防御技术。
张子越王永平张晓琳顾瑞春徐恩惠张帅
关键词:鲁棒性掩码防御技术

相关作者

李尤丰
作品数:30被引量:61H指数:4
供职机构:金陵科技学院
研究主题:EXAMPLE 分析实验教学 软件需求分析 测量系统 图像处理技术
曾岳
作品数:44被引量:49H指数:4
供职机构:金陵科技学院
研究主题:大数据 调度系统 地理空间 地理 引气
李迅
作品数:57被引量:149H指数:6
供职机构:北京中医药大学
研究主题:中医药 安全性 随机对照试验 中药 中草药治疗
张金池
作品数:443被引量:3,744H指数:30
供职机构:南京林业大学
研究主题:林分类型 退化喀斯特 苏南丘陵区 植被恢复 根系
杨波
作品数:17被引量:1H指数:1
供职机构:南开大学
研究主题:文学翻译 多肽 急性肺损伤 注射液 脂多糖