教学课程资源库 更多>>

关键词： 鲁艺红色音乐文化   艺术传承   创新发展  

摘要： 延安鲁艺创立在革命战争年代,其所创造的红色音乐文化呈现出了鲜明的民族精神烙印。鲁艺红色音乐文化有着丰富的内涵、独到的特色和高度的传承意义,经历了一系列的历史演变,成为了新时代弘扬中国红色音乐文化的宝贵资源。然而,随着时代的发展,网络文化不断涌现,鲁艺红色音乐文化被尘封于记忆中,在传承和发展中更存在着资源开发及管理缺位、传播内容及渠道单一等问题。基于此,应坚持以科学的思想为引领,从历史中获得启示,推动鲁艺红色音乐文化重回大众视野。

关键词： 唇腭裂   语音评价   腭裂语音   声学特征   人工智能   在线平台  

摘要： 唇腭裂术后针对性的语音治疗是唇腭裂综合序列治疗的重要组成部分,主观语音评价是目前应用最广泛的评价体系,由于无法避免主观倾向的局限性,精准的腭裂语音诊疗仍有进一步完善的空间。随着医工交叉的广泛推进,计算机科学已成为前沿医疗的基石,人工智能在言语障碍领域已开展初步的临床应用。对于腭裂语音的计算机辅助识别和评价技术已有较多研究成果,辅音省略、咽擦音等代偿性发音错误是关键的识别分析特征,结合软硬件技术的系统能达到较高的识别准确度;但目前研究大多仅局限于独立的声学特征辨别,有待进一步开发多参数的分析函数来避免普遍评价的系统偏差;且计算机科学在腭裂语音评价及治疗方面仍缺乏治疗方案的尝试,在线诊疗平台未得到充分使用,因此运用人工智能媒介与主观评价体系的结合应是唇腭裂综合序列治疗的前景模式之一。

关键词： Training   Classification algorithms   Takagi-Sugeno model   Neural networks   Fuzzy sets   Computer science   Benchmark testing   Adversarial Takagi-Sugeno-Kang (TSK) fuzzy classifier   deep fuzzy classifiers   fuzzy rules   gradient guided learning   large-scale datasets   stacked generalization principle  

摘要： While our recent deep fuzzy classifier DSA-FC, which stacks adversarial interpretable Takagi-Sugeno-Kang fuzzy subclassifiers, shares its promising classification, its training speed will become very slow and even intolerable for large-scale datasets, due to successive training on all training samples with their random gradient based updates along each layer of its stacked structure. In order to circumvent this bottleneck issue, a fast training algorithm FTA is developed in this study by downsizing fuzzy rules with the proposed gradient guided learning for each subclassifier at each layer of DSA-FC on large-scale datasets. The core of FTA is to assure fast training of each subclassifier at each layer of DSA-FC, which first generates first-order smooth gradient guided information by means of the proposed top-k fuzzy rules selected from all fuzzy rules in each subclassifier, and then quickly updates the current inputs in terms of such information, which will be taken as the inputs of the subclassifier at the next layer. Our theoretical analysis reveals that the proposed gradient guided learning indeed enhances the generalization capability of a deep fuzzy classifier with or without adversarial attacks on outputs. Experimental results on large datasets demonstrate that FTA indeed trains the deep fuzzy classifier DSA-FC quickly with enhanced generalization capability.

关键词： artificial intelligence   image processing   food quality   computer science   marketing  

摘要： Hazelnut is a product with high nutritional and economic value. In maintaining the quality value of hazelnut, the classification process is of great importance. In the present day, the quality classification of hazelnuts and other crops is performed in general manually, and so it is difficult and costly. Performing this classification with modern agricultural techniques is much more important in terms of quality. This study was based on a model intended to detect hazelnut quality. The model is about the establishment of an artificial intelligence-based classification system that can detect the hidden defects of hazelnuts. In the developed model, the visuals used in the dataset are divided into training and test groups. In the model, hazelnuts are divided into 5 classes according to their quality using AlexNet architecture and modern deep learning (DL) techniques instead of traditional hazelnut classification methods. In this model developed based on artificial intelligence, a very good approach was presented with the accurate classification of 99%. Moreover, the values regarding precision and recall were also determined at 98.7% and 99.6%, respectively. This study is important in terms of becoming widespread information technology use and computer-assisted applications in the agricultural economics field such as product classification, quality, and control.

关键词： Feature extraction   Task analysis   Computational modeling   Visualization   Video sequences   Fuses   Computer science   Person re-identification   self-attention   long-range dependencies   high-order statistics  

摘要： Capturing long-range dependencies during feature extraction is crucial for video-based person re-identification (re-id) since it would help to tackle many challenging problems such as occlusion and dramatic pose variation. Moreover, capturing subtle differences, such as bags and glasses, is indispensable to distinguish similar pedestrians. In this paper, we propose a novel and efficacious Statistic Attention (SA) block which can capture both the long-range dependencies and subtle differences. SA block leverages high-order statistics of feature maps, which contain both long-range and high-order information. By modeling relations with these statistics, SA block can explicitly capture long-range dependencies with less time complexity. In addition, high-order statistics usually concentrate on details of feature maps and can perceive the subtle differences between pedestrians. In this way, SA block is capable of discriminating pedestrians with subtle differences. Furthermore, this lightweight block can be conveniently inserted into existing deep neural networks at any depth to form Statistic Attention Network (SANet). To evaluate its performance, we conduct extensive experiments on two challenging video re-id datasets, showing that our SANet outperforms the state-of-the-art methods. Furthermore, to show the generalizability of SANet, we evaluate it on three image re-id datasets and two more general image classification datasets, including ImageNet. The source code is available at http://***/resources/codes/code/SANet_***.

关键词： agency   Black   LGBTQ plus   ballroom culture  

摘要： Background/Context: In recent years, youth agency has become more prevalent in education research, with many scholars agreeing that youth agency is highly contextual, reliant on multiple forces, and inextricably connected to social identity. However, relatively few studies have explored the agency of Black LGBTQ+ youth and how these youth understand their own agency. This fact connects to the reality that although there is a growing body of research around the educational experiences of LGBTQ+ youth of color, it is often centered on their victimhood and rarely explores how they practice agency to respond to the challenges they face. Purpose/Objective/Research Question/Focus of Study: Recognizing the importance of context and social identity with regard to youth agency, this study extends the literature on youth agency and LGBTQ+ youth of color by exploring the following research question: How do eight Black LGBTQ+ youth who are active members in New York City's ballroom culture make sense of their agency in school and in out-of-school ballroom spaces? Data Collection and Analysis: Following Seidman's (2013) interview process, three separate interviews were conducted with all eight youth. In addition, all eight youth participated in two focus groups. The data analysis was informed by a queer of color critique theoretical framework and focused on specific occurrences in the data in which the young people articulated understandings of their agentive practices that worked toward responding to, resisting, or subverting racial and anti-LGBTQ+ marginalization across schooling and ballroom contexts. Findings: Findings indicate that the youth regarded school as a confining space in which they were fearful of anti-LGBTQ+ rejection and abuse. Thus, they used their agency to suppress their LGBTQ+ identities in order to minimize their experiences with discrimination. Suppressing their identities resulted in the youth feeling disconnected from school and isolated, and increased t

关键词： Codes   Servers   Low latency communication   Distributed databases   Costs   Computer science   Wide area networks   Distributed storage systems   erasure codes   optimal caching  

摘要： Erasure codes have been widely considered as a promising solution to enhance data reliability at low storage costs. However, in modern geo-distributed storage systems, erasure codes may incur high data access latency as they require data retrieval from multiple remote storage nodes. This hinders the extensive application of erasure codes to data-intensive applications. This paper proposes novel caching schemes to achieve low latency in distributed coded storage systems. Assuming that future data popularity and network latency information are available, an offline caching scheme is proposed to explore the optimal caching solution for low latency. The proposed scheme categorizes all feasible caching decisions into a set of cache partitions, and then obtains the optimal caching decision through market clearing price for each cache partition. Furthermore, guided by the optimal scheme, an online caching scheme is proposed according to the measured data popularity and network latency information in real time, without the need to completely override the existing caching decisions. Both theoretical analysis and experiment results demonstrate that the online scheme can approximate the offline optimal scheme well with dramatically reduced computation complexity.

关键词： Curricular survey   ABET accreditation   Computer Science Curriculum  

摘要： In May and June 2021, the author conducted a survey of the computing and mathematical graduation requirements of 500 Bachelor of Science in Computer Science (BSCS) programs in the U.S. to determine alignment among these requirements and those recommended by ACM/IEEE-CS's Computer Science Curricula 2013 guidelines and ABET's Criteria for Accrediting Computing Programs 2021-2022 curricular criterion. Specifically, computing and mathematics credit-hour and course graduation requirements were determined for ABET-accredited and non-accredited BSCS programs within public and private universities. As (i) curricular guidelines are recommendations that do not have to be followed, (ii) curricular accreditation criteria are minimal constraints that may be exceeded, and (iii) non-accredited programs may choose to meet or exceed curricular accreditation criterion, it is possible that graduating computer science students are exposed to similar, or a wide variety, of coursework and associated topics. The survey results presented in this article provide broad answers to these three curricular possibilities. In turn, these results can contribute to future discussions concerning the perceived value of accreditation to students and industry stakeholders, allow educators in computer science departments to compare their curriculum to a large sample of other universities, and provide curricular committees additional insight into how various curricular guidelines are realistically being used.