首页 > 最新文献

Computer Supported Cooperative Work-The Journal of Collaborative Computing最新文献

英文 中文
VRNavigSS: A Two-dimensionality Virtual Reality System for Depression Level Detection VRNavigSS:一种用于抑郁水平检测的二维虚拟现实系统
IF 2.4 3区 计算机科学 Q3 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2023-05-24 DOI: 10.1109/CSCWD57460.2023.10152830
Ji Zheng, D. Ding, Yuang Zhang, Zidu Cheng, Zhuying Li
Depression is a severe mental illness that can lead to negative moods and activities. The traditional clinical approach for diagnosing depression is face-to-face consultation, which is limited by time and space. Virtual Reality (VR), as a novel technology with higher accessibility and lower cost, can serve as an effective digital approach to diagnosing psychological disorders. In VR systems, users are exposed to various experimental scenarios, gaining immersive and interactive experiences. Recent research has demonstrated a relationship between depression and low spatial memory navigation ability (SMNA). Based on these considerations, we propose a VR system to detect one’s depression level by measuring spatial memory navigation performances. The system consists of three virtual scenarios with different spatial scales and dimensions. To study the system’s effectiveness, a pilot study with eight participants was conducted. The results showed differences in the participants’ spatial memory navigation performances in the three scenarios and a correlation between depression level and their spatial memory navigation performances.
抑郁症是一种严重的精神疾病,会导致消极的情绪和行为。传统的临床诊断抑郁症的方法是面对面的咨询,受时间和空间的限制。虚拟现实技术作为一种可及性高、成本低的新技术,可以作为一种有效的心理障碍诊断的数字化手段。在VR系统中,用户可以接触到各种各样的实验场景,获得身临其境的互动体验。最近的研究已经证明了抑郁与低空间记忆导航能力(SMNA)之间的关系。基于这些考虑,我们提出了一个VR系统,通过测量空间记忆导航性能来检测一个人的抑郁程度。该系统由三个不同空间尺度和维度的虚拟场景组成。为了研究该系统的有效性,我们进行了一项有8名参与者的试点研究。结果表明,三种情境下被试空间记忆导航表现存在差异,抑郁程度与空间记忆导航表现存在相关性。
{"title":"VRNavigSS: A Two-dimensionality Virtual Reality System for Depression Level Detection","authors":"Ji Zheng, D. Ding, Yuang Zhang, Zidu Cheng, Zhuying Li","doi":"10.1109/CSCWD57460.2023.10152830","DOIUrl":"https://doi.org/10.1109/CSCWD57460.2023.10152830","url":null,"abstract":"Depression is a severe mental illness that can lead to negative moods and activities. The traditional clinical approach for diagnosing depression is face-to-face consultation, which is limited by time and space. Virtual Reality (VR), as a novel technology with higher accessibility and lower cost, can serve as an effective digital approach to diagnosing psychological disorders. In VR systems, users are exposed to various experimental scenarios, gaining immersive and interactive experiences. Recent research has demonstrated a relationship between depression and low spatial memory navigation ability (SMNA). Based on these considerations, we propose a VR system to detect one’s depression level by measuring spatial memory navigation performances. The system consists of three virtual scenarios with different spatial scales and dimensions. To study the system’s effectiveness, a pilot study with eight participants was conducted. The results showed differences in the participants’ spatial memory navigation performances in the three scenarios and a correlation between depression level and their spatial memory navigation performances.","PeriodicalId":51008,"journal":{"name":"Computer Supported Cooperative Work-The Journal of Collaborative Computing","volume":"1 1","pages":"820-824"},"PeriodicalIF":2.4,"publicationDate":"2023-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90816895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Matheuristic-based Rescheduling Method for Flexible Job Shops with Lot-streaming and Machine Reconfigurations 具有批量流和机器重构的柔性作业车间的数学重调度方法
IF 2.4 3区 计算机科学 Q3 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2023-05-24 DOI: 10.1109/CSCWD57460.2023.10152589
Jia-xu Fan, Chunjiang Zhang, Weiming Shen
This paper studies a flexible job shop rescheduling problem with lot-streaming and machine reconfigurations (FJRP-LSMR) to minimize the sum of the instability and total weighted tardiness, where machine reconfigurations are performed by assembling selected auxiliary modules for processing different batches of products. In this case, a rescheduling process is triggered by dynamic events, and requires to determine the lot-sizing plan, machine assignment, and sublot sequencing simultaneously. To address the intractable problem with multiple decision-making processes, a matheuristic integrating the genetic algorithm (GA) and the mixed integer linear programming (MILP) technique is proposed, where an MILP model is developed for optimally solving the lot-sizing sub-problem, and is embedded to the GA as a local search function. The proposed matheuristic is tested on randomly-generated instances to investigate the performance of all the algorithmic components. Experimental results demonstrate that the GA representation is effective in the complicated dynamic scheduling problem, and the lot-sizing sub-problem can be well addressed by the proposed MILP-based local search.
本文研究了一类具有批量流和机器重构的柔性作业车间重调度问题(FJRP-LSMR),该问题通过装配选定的辅助模块来加工不同批次的产品,以最小化不稳定性和总加权延迟的总和。在这种情况下,重新调度过程由动态事件触发,并且需要同时确定批量计划、机器分配和子批排序。为了解决多决策过程的棘手问题,提出了一种将遗传算法(GA)与混合整数线性规划(MILP)技术相结合的数学方法,建立了最优求解批量子问题的混合整数线性规划模型,并将其作为局部搜索函数嵌入到遗传算法中。在随机生成的实例上对所提出的数学算法进行了测试,以研究所有算法组件的性能。实验结果表明,遗传算法在复杂的动态调度问题中是有效的,并且基于milp的局部搜索可以很好地解决批量子问题。
{"title":"A Matheuristic-based Rescheduling Method for Flexible Job Shops with Lot-streaming and Machine Reconfigurations","authors":"Jia-xu Fan, Chunjiang Zhang, Weiming Shen","doi":"10.1109/CSCWD57460.2023.10152589","DOIUrl":"https://doi.org/10.1109/CSCWD57460.2023.10152589","url":null,"abstract":"This paper studies a flexible job shop rescheduling problem with lot-streaming and machine reconfigurations (FJRP-LSMR) to minimize the sum of the instability and total weighted tardiness, where machine reconfigurations are performed by assembling selected auxiliary modules for processing different batches of products. In this case, a rescheduling process is triggered by dynamic events, and requires to determine the lot-sizing plan, machine assignment, and sublot sequencing simultaneously. To address the intractable problem with multiple decision-making processes, a matheuristic integrating the genetic algorithm (GA) and the mixed integer linear programming (MILP) technique is proposed, where an MILP model is developed for optimally solving the lot-sizing sub-problem, and is embedded to the GA as a local search function. The proposed matheuristic is tested on randomly-generated instances to investigate the performance of all the algorithmic components. Experimental results demonstrate that the GA representation is effective in the complicated dynamic scheduling problem, and the lot-sizing sub-problem can be well addressed by the proposed MILP-based local search.","PeriodicalId":51008,"journal":{"name":"Computer Supported Cooperative Work-The Journal of Collaborative Computing","volume":"1 1","pages":"1950-1955"},"PeriodicalIF":2.4,"publicationDate":"2023-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89643562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Variable Neighborhood Search Algorithm for Heat Pipe-Constrained Component Layout Optimization 热管约束下元件布局优化的变邻域搜索算法
IF 2.4 3区 计算机科学 Q3 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2023-05-24 DOI: 10.1109/CSCWD57460.2023.10152572
Shichen Tian, Zhi-Guo Deng, Jia-xu Fan, Chunjiang Zhang, Weiming Shen, Liang Gao
This paper proposes a bi-level Multi-Start Variable Neighborhood Search-Genetic Algorithm (MSVNS-GA) for the heat pipe-constrained component layout optimization (HCLO) problems. The proposed algorithm has won the first place in the CEC’2022 Competition on the Heat Pipe-Constrained Component Layout Optimization. First, the HCLO problem is divided into two sub-problems, heat pipe assignment (HA) and component location (CL). In the HA problem, components are assigned to different heat pipes. The best assignment scheme is taken as the input of the CL problem. In the CL problem, the specific coordinates of components are determined to meet practical engineering constraints. In this way, the complexity of the problem is lowered, and a part of the infeasible solution is cropped. Second, to address the HA problem, a multi-start variable neighborhood search algorithm is proposed and five efficient bottleneck-aware neighborhood structures are designed. And the genetic algorithm is used for CL problem. Finally, 30 independent experiments are carried out on the calculation examples with sizes of 6×4, 15×6, 40×16, and 90×32. The best result obtained by MSVNS-GA is 0.0%, 1.0%, 0.8%, and 1.1% different from the estimated lower bounds.
针对热管约束下的元件布局优化问题,提出了一种双层多启动变量邻域搜索遗传算法。该算法在CEC 2022热管约束组件布局优化竞赛中获得第一名。首先,将HCLO问题分为热管分配(HA)和部件定位(CL)两个子问题。在HA问题中,组件被分配到不同的热管中。将最佳分配方案作为CL问题的输入。在CL问题中,确定部件的具体坐标以满足实际工程约束。这样既降低了问题的复杂性,又剔除了一部分不可行的解。其次,针对高可用性问题,提出了一种多起始变量邻域搜索算法,设计了五种高效的瓶颈感知邻域结构。并采用遗传算法求解CL问题。最后,对尺寸分别为6×4、15×6、40×16、90×32的计算例进行了30个独立实验。MSVNS-GA得到的最佳结果与估计的下界分别相差0.0%、1.0%、0.8%和1.1%。
{"title":"A Variable Neighborhood Search Algorithm for Heat Pipe-Constrained Component Layout Optimization","authors":"Shichen Tian, Zhi-Guo Deng, Jia-xu Fan, Chunjiang Zhang, Weiming Shen, Liang Gao","doi":"10.1109/CSCWD57460.2023.10152572","DOIUrl":"https://doi.org/10.1109/CSCWD57460.2023.10152572","url":null,"abstract":"This paper proposes a bi-level Multi-Start Variable Neighborhood Search-Genetic Algorithm (MSVNS-GA) for the heat pipe-constrained component layout optimization (HCLO) problems. The proposed algorithm has won the first place in the CEC’2022 Competition on the Heat Pipe-Constrained Component Layout Optimization. First, the HCLO problem is divided into two sub-problems, heat pipe assignment (HA) and component location (CL). In the HA problem, components are assigned to different heat pipes. The best assignment scheme is taken as the input of the CL problem. In the CL problem, the specific coordinates of components are determined to meet practical engineering constraints. In this way, the complexity of the problem is lowered, and a part of the infeasible solution is cropped. Second, to address the HA problem, a multi-start variable neighborhood search algorithm is proposed and five efficient bottleneck-aware neighborhood structures are designed. And the genetic algorithm is used for CL problem. Finally, 30 independent experiments are carried out on the calculation examples with sizes of 6×4, 15×6, 40×16, and 90×32. The best result obtained by MSVNS-GA is 0.0%, 1.0%, 0.8%, and 1.1% different from the estimated lower bounds.","PeriodicalId":51008,"journal":{"name":"Computer Supported Cooperative Work-The Journal of Collaborative Computing","volume":"13 1","pages":"1452-1457"},"PeriodicalIF":2.4,"publicationDate":"2023-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89521941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Joint Optimization of Task Offloading and Resource Allocation for Edge Video Analytics 边缘视频分析中任务卸载与资源分配的联合优化
IF 2.4 3区 计算机科学 Q3 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2023-05-24 DOI: 10.1109/CSCWD57460.2023.10152681
Zhenxuan Xu, Yunzhou Xie, Fang Dong, Shucun Fu, Jiangshan Hao
With the development of artificial intelligence technology and intelligent devices, people show great interest in intelligent applications and services, but it is impossible to complete these compute-intensive AI tasks locally, especially video analysis tasks. Edge computing is regarded as an appropriate solution to these problems. In this paper, we study the multi-user multi-server edge-end collaboration video analytics task offloading problem aiming at minimizing the overall delay for each device to finish its task. Each device chooses whether to execute the task locally or to offload the task to an edge server, and which edge server to select. At the theoretical level, we model the joint problem of task offloading and resource allocation as a mixed integer programming problem. We first determine the optimal resource allocation policy with a given task offloading decision profile. Then, task offloading problem is modeled as a congestion game and propose a decentralized mechanism to achieve a Nash equilibrium. Moreover, experimental results demonstrate that the proposed method is efficient and can significantly and steadily improve the system performance, reducing the overall delay by 33.96% on average, compared with other algorithms.
随着人工智能技术和智能设备的发展,人们对智能应用和服务表现出极大的兴趣,但这些计算密集型的AI任务,特别是视频分析任务,是不可能在本地完成的。边缘计算被认为是解决这些问题的合适方法。本文研究了多用户多服务器边缘协作视频分析任务卸载问题,旨在使每个设备完成任务的总体延迟最小化。每个设备选择是在本地执行任务还是将任务卸载到边缘服务器,以及选择哪个边缘服务器。在理论层面,我们将任务卸载和资源分配的联合问题建模为一个混合整数规划问题。我们首先根据给定的任务卸载决策概要确定最优资源分配策略。然后,将任务卸载问题建模为一个拥塞博弈,并提出了一种去中心化机制来实现纳什均衡。实验结果表明,该方法是有效的,可以显著稳定地提高系统性能,与其他算法相比,总体延迟平均降低33.96%。
{"title":"Joint Optimization of Task Offloading and Resource Allocation for Edge Video Analytics","authors":"Zhenxuan Xu, Yunzhou Xie, Fang Dong, Shucun Fu, Jiangshan Hao","doi":"10.1109/CSCWD57460.2023.10152681","DOIUrl":"https://doi.org/10.1109/CSCWD57460.2023.10152681","url":null,"abstract":"With the development of artificial intelligence technology and intelligent devices, people show great interest in intelligent applications and services, but it is impossible to complete these compute-intensive AI tasks locally, especially video analysis tasks. Edge computing is regarded as an appropriate solution to these problems. In this paper, we study the multi-user multi-server edge-end collaboration video analytics task offloading problem aiming at minimizing the overall delay for each device to finish its task. Each device chooses whether to execute the task locally or to offload the task to an edge server, and which edge server to select. At the theoretical level, we model the joint problem of task offloading and resource allocation as a mixed integer programming problem. We first determine the optimal resource allocation policy with a given task offloading decision profile. Then, task offloading problem is modeled as a congestion game and propose a decentralized mechanism to achieve a Nash equilibrium. Moreover, experimental results demonstrate that the proposed method is efficient and can significantly and steadily improve the system performance, reducing the overall delay by 33.96% on average, compared with other algorithms.","PeriodicalId":51008,"journal":{"name":"Computer Supported Cooperative Work-The Journal of Collaborative Computing","volume":"83 1","pages":"636-641"},"PeriodicalIF":2.4,"publicationDate":"2023-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91234783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Multi-view Knowledge Graph Embedding Model Considering Structure and Semantics 一种考虑结构和语义的多视图知识图嵌入模型
IF 2.4 3区 计算机科学 Q3 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2023-05-24 DOI: 10.1109/CSCWD57460.2023.10152719
Jia Peng, Neng Gao, Yifei Zhang, Min Li
The essence of knowledge representation learning is to embed the knowledge graph into a low-dimensional vector space to make knowledge computable and deductible. Semantic indiscriminate knowledge representation models usually focus more on the scalability on real world knowledge graphs. They assume that the vector representations of entities and relations are consistent in any semantic environment. Semantic discriminate knowledge representation models focus more on precision. They assume that the vector representations should depend on the specific semantic environment. However, both the two kinds only consider knowledge embedding in semantic space, ignoring the rich features of network structure contained between triplet entities. The MulSS model proposed in this paper is a joint embedding learning method across network structure space and semantic space. By synchronizing the Deepwalk network representation learning method into the semantic indiscriminate model TransE, MulSS achieves better performance than TransE and some semantic discriminate knowledge representation models on triplet classification task. This shows that it is of great significance to extend knowledge representation learning from the single semantic space to the network structure and semantic joint space.
知识表示学习的本质是将知识图嵌入到低维向量空间中,使知识可计算、可演绎。语义不加区分的知识表示模型通常更关注现实世界知识图的可扩展性。它们假定实体和关系的向量表示在任何语义环境中都是一致的。语义区分知识表示模型更注重准确性。他们假设向量表示应该依赖于特定的语义环境。然而,这两种方法都只考虑了语义空间中的知识嵌入,而忽略了三元实体之间包含的网络结构的丰富特征。本文提出的MulSS模型是一种跨网络结构空间和语义空间的联合嵌入学习方法。通过将Deepwalk网络表示学习方法同步到语义不区分模型TransE中,MulSS在三元组分类任务上取得了比TransE和一些语义区分知识表示模型更好的性能。这表明将知识表示学习从单一的语义空间扩展到网络结构和语义连接空间具有重要意义。
{"title":"A Multi-view Knowledge Graph Embedding Model Considering Structure and Semantics","authors":"Jia Peng, Neng Gao, Yifei Zhang, Min Li","doi":"10.1109/CSCWD57460.2023.10152719","DOIUrl":"https://doi.org/10.1109/CSCWD57460.2023.10152719","url":null,"abstract":"The essence of knowledge representation learning is to embed the knowledge graph into a low-dimensional vector space to make knowledge computable and deductible. Semantic indiscriminate knowledge representation models usually focus more on the scalability on real world knowledge graphs. They assume that the vector representations of entities and relations are consistent in any semantic environment. Semantic discriminate knowledge representation models focus more on precision. They assume that the vector representations should depend on the specific semantic environment. However, both the two kinds only consider knowledge embedding in semantic space, ignoring the rich features of network structure contained between triplet entities. The MulSS model proposed in this paper is a joint embedding learning method across network structure space and semantic space. By synchronizing the Deepwalk network representation learning method into the semantic indiscriminate model TransE, MulSS achieves better performance than TransE and some semantic discriminate knowledge representation models on triplet classification task. This shows that it is of great significance to extend knowledge representation learning from the single semantic space to the network structure and semantic joint space.","PeriodicalId":51008,"journal":{"name":"Computer Supported Cooperative Work-The Journal of Collaborative Computing","volume":"29 1","pages":"1532-1537"},"PeriodicalIF":2.4,"publicationDate":"2023-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83511477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
CSCWD 2023 Cover Page CSCWD 2023封面
IF 2.4 3区 计算机科学 Q3 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2023-05-24 DOI: 10.1109/cscwd57460.2023.10151997
{"title":"CSCWD 2023 Cover Page","authors":"","doi":"10.1109/cscwd57460.2023.10151997","DOIUrl":"https://doi.org/10.1109/cscwd57460.2023.10151997","url":null,"abstract":"","PeriodicalId":51008,"journal":{"name":"Computer Supported Cooperative Work-The Journal of Collaborative Computing","volume":"218 1","pages":""},"PeriodicalIF":2.4,"publicationDate":"2023-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83631724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Multi-level Approach to Learning Early Warning based on Cognitive Diagnosis and Learning Behaviors Analysis 基于认知诊断和学习行为分析的多层次学习预警方法
IF 2.4 3区 计算机科学 Q3 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2023-05-24 DOI: 10.1109/cscwd57460.2023.10152579
Hua Ma, Wen Zhao, Zixu Jiang, Peiji Huang, Wen-sheng Tang, Hongyu Zhang
Learning early warning is of great significance for coping with students' learning risks. The existing research fails in modeling the fluctuation of students' learning states and providing the multi-level early warning for students at different levels. To address them, a new approach of learning early warning is proposed to predict at-risk students in e-learning environment by combining cognitive diagnosis with learning behaviors analysis. In this approach, the students' learning process is modeled from four dimensions, i.e., learning quality, learning engagement, latent learning state, and historical learning performance. The convolutional neural network and long short-term memory network are used to explore the students' latent learning features. Then, the Adaboost algorithm is applied to predict students' learning performance. Based on the predicted performance, the evaluation rules are designed to provide multi-level learning early warning for students. Finally, the experiments demonstrate that the proposed method could predict at-risk students efficiently and accurately.
学习预警对于应对学生的学习风险具有重要意义。现有的研究未能对学生学习状态的波动进行建模,也未能对不同层次的学生提供多层次的预警。针对这些问题,提出了一种将认知诊断与学习行为分析相结合的学习预警方法来预测网络学习环境中的高危学生。该方法从学习质量、学习投入、潜在学习状态和历史学习绩效四个维度对学生的学习过程进行建模。使用卷积神经网络和长短期记忆网络来探索学生的潜在学习特征。然后,运用Adaboost算法预测学生的学习成绩。在预测成绩的基础上,设计评价规则,为学生提供多层次的学习预警。实验结果表明,该方法能够有效、准确地预测出学生的学业风险。
{"title":"A Multi-level Approach to Learning Early Warning based on Cognitive Diagnosis and Learning Behaviors Analysis","authors":"Hua Ma, Wen Zhao, Zixu Jiang, Peiji Huang, Wen-sheng Tang, Hongyu Zhang","doi":"10.1109/cscwd57460.2023.10152579","DOIUrl":"https://doi.org/10.1109/cscwd57460.2023.10152579","url":null,"abstract":"Learning early warning is of great significance for coping with students' learning risks. The existing research fails in modeling the fluctuation of students' learning states and providing the multi-level early warning for students at different levels. To address them, a new approach of learning early warning is proposed to predict at-risk students in e-learning environment by combining cognitive diagnosis with learning behaviors analysis. In this approach, the students' learning process is modeled from four dimensions, i.e., learning quality, learning engagement, latent learning state, and historical learning performance. The convolutional neural network and long short-term memory network are used to explore the students' latent learning features. Then, the Adaboost algorithm is applied to predict students' learning performance. Based on the predicted performance, the evaluation rules are designed to provide multi-level learning early warning for students. Finally, the experiments demonstrate that the proposed method could predict at-risk students efficiently and accurately.","PeriodicalId":51008,"journal":{"name":"Computer Supported Cooperative Work-The Journal of Collaborative Computing","volume":"79 1","pages":"468-473"},"PeriodicalIF":2.4,"publicationDate":"2023-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82053243","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Providing Patients with Actionable Medical Knowledge: mHealth Apps for Laypeople 为患者提供可操作的医疗知识:外行人的移动健康应用程序
IF 2.4 3区 计算机科学 Q3 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2023-05-24 DOI: 10.1109/CSCWD57460.2023.10152617
Y. Lima, C. E. Barbosa, A. Lyra, Herbert Salazar, M. Argôlo, J. Souza
Healthcare practitioners are professionals with highly specialized knowledge leaving a vast gap between them and their patients. Mobile Health applications may provide a fast and precise diagnosis to patients through expert systems and chatbots. We surveyed and classified Mobile Health apps, discussing their advantages, such as lower costs and replicability. However, most technologies lack the common sense and creativity to solve individual cases, and their precision is far from that of humans. Mobile Health is a relatively new field, and new technologies will be developed in the future, changing the current balance in favor of machines but not replacing healthcare professionals completely. This trend should be watched closely by those interested in healthcare, given its potential for the improvement of patient treatment and also their capacity to disrupt healthcare professionals’ formation and work. Therefore, this work contributes to understanding the capabilities and limitations of mHealth apps in providing medical diagnosis and treatment.
医疗保健从业人员是具有高度专业知识的专业人员,他们与患者之间存在巨大差距。移动医疗应用程序可以通过专家系统和聊天机器人为患者提供快速准确的诊断。我们调查并分类了移动健康应用,讨论了它们的优势,如较低的成本和可复制性。然而,大多数技术缺乏解决个案的常识和创造力,它们的精确度与人类相差甚远。移动医疗是一个相对较新的领域,未来会有新技术的发展,改变目前的平衡,有利于机器,但不会完全取代医疗保健专业人员。对医疗保健感兴趣的人应该密切关注这一趋势,因为它有可能改善患者的治疗,也有可能破坏医疗保健专业人员的形成和工作。因此,这项工作有助于了解移动健康应用程序在提供医疗诊断和治疗方面的能力和局限性。
{"title":"Providing Patients with Actionable Medical Knowledge: mHealth Apps for Laypeople","authors":"Y. Lima, C. E. Barbosa, A. Lyra, Herbert Salazar, M. Argôlo, J. Souza","doi":"10.1109/CSCWD57460.2023.10152617","DOIUrl":"https://doi.org/10.1109/CSCWD57460.2023.10152617","url":null,"abstract":"Healthcare practitioners are professionals with highly specialized knowledge leaving a vast gap between them and their patients. Mobile Health applications may provide a fast and precise diagnosis to patients through expert systems and chatbots. We surveyed and classified Mobile Health apps, discussing their advantages, such as lower costs and replicability. However, most technologies lack the common sense and creativity to solve individual cases, and their precision is far from that of humans. Mobile Health is a relatively new field, and new technologies will be developed in the future, changing the current balance in favor of machines but not replacing healthcare professionals completely. This trend should be watched closely by those interested in healthcare, given its potential for the improvement of patient treatment and also their capacity to disrupt healthcare professionals’ formation and work. Therefore, this work contributes to understanding the capabilities and limitations of mHealth apps in providing medical diagnosis and treatment.","PeriodicalId":51008,"journal":{"name":"Computer Supported Cooperative Work-The Journal of Collaborative Computing","volume":"35 1","pages":"654-659"},"PeriodicalIF":2.4,"publicationDate":"2023-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77235061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cost-Optimized Microservice Deployment for IoT Application in Cloud-Edge Collaborative Environment 云边缘协同环境下物联网应用的成本优化微服务部署
IF 2.4 3区 计算机科学 Q3 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2023-05-24 DOI: 10.1109/CSCWD57460.2023.10152549
Xiaoyuan Zhang, Bing Tang, Qing Yang, Wei Xu, Feiyan Guo
With the popularity of cloud native and DevOps, container technology is widely used and combined with microservices. The deployment of container-based microservices in distributed cloud-edge infrastructure requires suitable strategies to ensure the quality of service for users. However, the existing container orchestration tools cannot flexibly select the best deployment location according to the user’s cost budget, and are insufficient in personalized deployment solutions. From the perspective of application providers, this paper considers the location distribution of users, application dependencies, and server price differences, and proposes a genetic algorithm-based Internet-of-Things (IoT) application deployment strategy for personalized cost budgets. The application deployment problem is defined as an optimization problem that minimizes user service latency under cost constraints. This problem is an NP-hard problem, and genetic algorithm is introduced to solve the optimization problem effectively and improve the deployment efficiency. The proposed algorithm is compared with four baseline algorithms, Time-Greedy, Cost-Greedy, Random and PSO, using real datasets and some synthetic datasets. The results show that the proposed algorithm outperforms other competing baseline algorithms.
随着云原生和DevOps的流行,容器技术被广泛使用,并与微服务相结合。在分布式云边缘基础设施中部署基于容器的微服务需要合适的策略来确保为用户提供的服务质量。但是,现有的容器编排工具无法根据用户的成本预算灵活选择最佳部署位置,在个性化部署解决方案中存在不足。本文从应用提供商的角度出发,考虑用户位置分布、应用依赖关系和服务器价格差异,提出了一种基于遗传算法的物联网应用部署策略,用于个性化成本预算。应用程序部署问题被定义为在成本约束下最小化用户服务延迟的优化问题。该问题是一个np困难问题,引入遗传算法有效地解决了优化问题,提高了部署效率。利用实际数据集和一些合成数据集,将该算法与时间贪婪算法、成本贪婪算法、随机算法和粒子群算法四种基线算法进行了比较。结果表明,该算法优于其他基准算法。
{"title":"Cost-Optimized Microservice Deployment for IoT Application in Cloud-Edge Collaborative Environment","authors":"Xiaoyuan Zhang, Bing Tang, Qing Yang, Wei Xu, Feiyan Guo","doi":"10.1109/CSCWD57460.2023.10152549","DOIUrl":"https://doi.org/10.1109/CSCWD57460.2023.10152549","url":null,"abstract":"With the popularity of cloud native and DevOps, container technology is widely used and combined with microservices. The deployment of container-based microservices in distributed cloud-edge infrastructure requires suitable strategies to ensure the quality of service for users. However, the existing container orchestration tools cannot flexibly select the best deployment location according to the user’s cost budget, and are insufficient in personalized deployment solutions. From the perspective of application providers, this paper considers the location distribution of users, application dependencies, and server price differences, and proposes a genetic algorithm-based Internet-of-Things (IoT) application deployment strategy for personalized cost budgets. The application deployment problem is defined as an optimization problem that minimizes user service latency under cost constraints. This problem is an NP-hard problem, and genetic algorithm is introduced to solve the optimization problem effectively and improve the deployment efficiency. The proposed algorithm is compared with four baseline algorithms, Time-Greedy, Cost-Greedy, Random and PSO, using real datasets and some synthetic datasets. The results show that the proposed algorithm outperforms other competing baseline algorithms.","PeriodicalId":51008,"journal":{"name":"Computer Supported Cooperative Work-The Journal of Collaborative Computing","volume":"64 1","pages":"873-878"},"PeriodicalIF":2.4,"publicationDate":"2023-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85059063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Copyright Authentication Method Balancing Watermark Robustness and Data Distortion 一种平衡水印鲁棒性和数据失真的版权认证方法
IF 2.4 3区 计算机科学 Q3 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2023-05-24 DOI: 10.1109/CSCWD57460.2023.10152729
Chundong Wang, Yue Li
Database watermarking plays an irreplaceable role in copyright authentication and data integrity protection, but the robustness of the watermark and the resulting data distortion are a pair of contradictory objects that cannot be ignored. To solve this problem, a reversible database watermarking method, named IGADEW, is proposed to balance the relationship between them. The biggest difference from previous research is that IGADEW synthesizes the optimization objects and obtain various parameters through genetic algorithm (GA). Second, the fitness function considers the weights of robustness and distortion, aiming to find the optimal balance between the two. IGADEW uses the Hash-based Message Authentication Code (HMAC) algorithm to encrypt the experimental parameters and uses the primary key hash algorithm for data grouping, both to ensure robustness. And the data distortion is limited with the help of threshold constraints. Finally, experiments using the UCI dataset demonstrate the effectiveness of IGADEW. Experimental results show that, compared with existing methods, IGADEW is more robust against common attacks, with lower data distortion.
数据库水印在版权认证和数据完整性保护方面具有不可替代的作用,但水印的鲁棒性和由此产生的数据失真是一对不可忽视的矛盾对象。为了解决这一问题,提出了一种可逆的数据库水印方法IGADEW来平衡两者之间的关系。与以往研究最大的不同之处是,IGADEW通过遗传算法(genetic algorithm, GA)综合优化对象并获取各种参数。其次,适应度函数考虑鲁棒性和失真的权重,旨在找到两者之间的最优平衡点。IGADEW采用基于哈希的消息验证码(HMAC)算法对实验参数进行加密,采用主密钥哈希算法对数据分组,保证了鲁棒性。并且利用阈值约束限制了数据失真。最后,基于UCI数据集的实验验证了IGADEW的有效性。实验结果表明,与现有方法相比,IGADEW对常见攻击具有更强的鲁棒性,并且具有更低的数据失真。
{"title":"A Copyright Authentication Method Balancing Watermark Robustness and Data Distortion","authors":"Chundong Wang, Yue Li","doi":"10.1109/CSCWD57460.2023.10152729","DOIUrl":"https://doi.org/10.1109/CSCWD57460.2023.10152729","url":null,"abstract":"Database watermarking plays an irreplaceable role in copyright authentication and data integrity protection, but the robustness of the watermark and the resulting data distortion are a pair of contradictory objects that cannot be ignored. To solve this problem, a reversible database watermarking method, named IGADEW, is proposed to balance the relationship between them. The biggest difference from previous research is that IGADEW synthesizes the optimization objects and obtain various parameters through genetic algorithm (GA). Second, the fitness function considers the weights of robustness and distortion, aiming to find the optimal balance between the two. IGADEW uses the Hash-based Message Authentication Code (HMAC) algorithm to encrypt the experimental parameters and uses the primary key hash algorithm for data grouping, both to ensure robustness. And the data distortion is limited with the help of threshold constraints. Finally, experiments using the UCI dataset demonstrate the effectiveness of IGADEW. Experimental results show that, compared with existing methods, IGADEW is more robust against common attacks, with lower data distortion.","PeriodicalId":51008,"journal":{"name":"Computer Supported Cooperative Work-The Journal of Collaborative Computing","volume":"44 1","pages":"1178-1183"},"PeriodicalIF":2.4,"publicationDate":"2023-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85230039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
Computer Supported Cooperative Work-The Journal of Collaborative Computing
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1