Insider threats present a formidable challenge to cybersecurity, as insiders possess the privileges and information necessary to execute diverse attacks. A comprehensive analysis of user behavior, including behavioral...
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ISBN:
(纸本)9798350381993;9798350382006
Insider threats present a formidable challenge to cybersecurity, as insiders possess the privileges and information necessary to execute diverse attacks. A comprehensive analysis of user behavior, including behavioral features, sequences, and inter-user relationships, is required for effective insider threat detection. However, few existing methods consider these features in an integrated manner, which could result in high false positives. To further improve the accuracy of insider threat detection, we propose a novel framework for insider threat detection based on a temporal graph convolutional network with data augmentation (referred to as TGCN-DA), which integrates the exploration of structural information among users and simultaneously captures the behavior temporal dependencies. In particular, we introduce an edge predictor to encode user structural information and strengthen intra-class edges among users based on the representation of users' behavior. Additionally, the GCN with temporal feature mechanism is leveraged to learn dynamic changes in users' behavior to capture behavior temporal dependence. Extensive experiments demonstrate that our proposed TGCN-DA outperforms other state-of-the-art methods and achieves higher accuracy in the task of insider threat detection.
Use of the serverless paradigm in cloud application development is growing rapidly, primarily driven by its promise to free developers from the responsibility of provisioning, operating, and scaling the underlying inf...
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ISBN:
(纸本)9798350304831
Use of the serverless paradigm in cloud application development is growing rapidly, primarily driven by its promise to free developers from the responsibility of provisioning, operating, and scaling the underlying infrastructure. However, modern cloud-edge infrastructures are characterized by large numbers of disparate providers, constrained resource devices, platform heterogeneity, infrastructural dynamicity, and the need to orchestrate geographically distributed nodes and devices over public networks. This presents significant management complexity that must be addressed if serverless technologies are to be used in production systems. This position paper introduces COGNIT, a major new European initiative aiming to integrate AI technology into cloud-edge management systems to create a Cognitive Cloud reference framework and associated tools for serverless computing at the edge. COGNIT aims to: 1) support an innovative new serverless paradigm for edge application management and enhanced digital sovereignty for users and developers;2) enable on-demand deployment of large-scale, highly distributed and self-adaptive serverless environments using existing cloud resources;3) optimize data placement according to changes in energy efficiency heuristics and application demands and behavior;4) enable secure and trusted execution of serverless runtimes. We identify and discuss seven research challenges related to the integration of serverless technologies with multi-provider Edge infrastructures and present our vision for how these challenges can be solved. We introduce a high-level view of our reference architecture for serverless cloud-edge continuum systems, and detail four motivating real-world use cases that will be used for validation, drawing from domains within Smart Cities, Agriculture and Environment, Energy, and Cybersecurity.
Large-scale DL on HPC systems like Frontier and Summit uses distributed node-local caching to address scalability and performance challenges. However, as these systems grow more complex, the risk of node failures incr...
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Edge computing is considered a promising architecture for handling latency-sensitive and computationally intensive tasks. The lack of consideration for the timing of jobs and their unique topology in the existing rese...
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With the advent of the fourth industrial revolution in recent years, technological advancements have led to massive exponential growth in the Internet of Things (loTs), fog computing, computer security, and cyberattac...
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This paper presents a type II charge pump PLL operating at 23.8 GHz in 0.13 mu m SiGe BiCMOS technology for distributed beamforming applications. The PLL includes a differential Colpitts VCO that generates a highly re...
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ISBN:
(纸本)9798350387186;9798350387179
This paper presents a type II charge pump PLL operating at 23.8 GHz in 0.13 mu m SiGe BiCMOS technology for distributed beamforming applications. The PLL includes a differential Colpitts VCO that generates a highly reliable phased-locked signal. It provides a good locking range of 3.5 GHz and a loop bandwidth of 1 MHz with a phase margin of 77 degrees. Additionally, at a 1 MHz offset, the PLL exhibits a measured phase noise of -94 dBc/Hz.
Split learning (SL) is a distributed deep-learning approach that enables individual data owners to train a shared model over their joint data without exchanging it with one another. SL has been the subject of much res...
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ISBN:
(数字)9781665471770
ISBN:
(纸本)9781665471770
Split learning (SL) is a distributed deep-learning approach that enables individual data owners to train a shared model over their joint data without exchanging it with one another. SL has been the subject of much research in recent years, leading to the development of several versions for facilitating distributed learning. However, the majority of this work mainly focuses on optimizing the training process while largely ignoring the design and implementation of practical tool support. To fill this gap, we present our automated software framework for training deep neural networks from decentralized data based on our extended version of SL, termed Blind Learning. Specifically, we shed light on the underlying optimization algorithm, explain the design and implementation details of our framework, and present our preliminary evaluation results. We demonstrate that Blind Learning is 65% more computationally efficient than SL and can produce better performing models. Moreover, we show that running the same job in our framework is at least 4.5 x faster than PySyft. Our goal is to spur the development of proper tool support for distributed deep learning.
This work proposes a real-time sentiment analysis pipeline on customer feedback using Yelp and addresses the high-volume dynamic user-generated contents processing problem. The proposal integrates state-of-the-art mac...
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As the amount of data and complexity of neural network models continue to grow, distributed training has become increasingly crucial for improving training speed. However, the bottleneck of distributed training is the...
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ISBN:
(纸本)9781728190549
As the amount of data and complexity of neural network models continue to grow, distributed training has become increasingly crucial for improving training speed. However, the bottleneck of distributed training is the communication overheads among distributed workers. Recent research has shown that performing in-network aggregation using programmable switches is a good way to accelerate distributed training. However, previous work has only targeted specific neural network models and can only be applied in specified network topologies. Administrators may train different models and train them in different network topologies. In order to generalize the approach of using programmable switches to accelerate distributed training, we propose N4, a programmable intra-switch acceleration framework that supports distributed training of multiple neural networks. N4 also realizes the deployment of distributed workers based on any topology. Our experimental results show that N4 ensures high performance and isolation when training numerous neural networks. N4 outperforms state-of-the-art systems, accelerating training for existing methods by up to 3.4x.
Earthquake Early Warning systems (EEWS) are developed to detect early signs of an earthquake, and using these systems, critical infrastructures can be shut down to prevent catastrophic disasters. This paper focuses on...
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ISBN:
(纸本)9798350380903;9798350380910
Earthquake Early Warning systems (EEWS) are developed to detect early signs of an earthquake, and using these systems, critical infrastructures can be shut down to prevent catastrophic disasters. This paper focuses on the design and development of an EEWS emphasizing control and instrumentation and highlighting the interoperability between IEC 61499 and ieee 1451 standards. The system is fully distributed from high to low levels, enabling robust implementation of a distributed control and measurement system.
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