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international conference on High Performance computing, networking, Storage and Analysis (SC)

作者： Levy, Ryan Solomonik, Edgar Clark, Bryan K. Univ Illinois Illinois Quantum Informat Sci & Technol Ctr IQUIS Champaign IL 61801 USA Univ Illinois Inst Condensed Matter Theory Champaign IL 61801 USA Univ Illinois Dept Phys Champaign IL 61801 USA Univ Illinois Dept Comp Sci Champaign IL 61801 USA

ISBN: (纸本)9781728199986

The density matrix renormalization group (DMRG) algorithm is a powerful tool for solving eigenvalue problems to model quantum systems. DMRG relies on tensor contractions and dense linear algebra to compute properties of condensed matter physics systems. However, its efficient parallel implementation is challenging due to limited concurrency, large memory footprint, and tensor sparsity. We mitigate these problems by implementing two new parallel approaches that handle block sparsity arising in DMRG, via Cyclops, a distributed memory tensor contraction library. We benchmark their performance on two physical systems using the Blue Waters and Stampede2 supercomputers. Our DMRG performance is improved by up to 5.9X in runtime and 99X in processing rate over ITensor, at roughly comparable computational resource use. This enables higher accuracy calculations via larger tensors for quantum state approximation. We demonstrate that despite having limited concurrency, DMRG is weakly scalable with the use of efficient parallel tensor contraction mechanisms.

关键词： DMRG tensor networks tensor contractions sparse tensors quantum systems Cyclops Tensor Framework

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Cross-Lingual Propaganda Detection

Cross-Lingual Propaganda Detection

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IEEE international conference on Big Data

作者： Wenshan Zhang Xi Zhang Key Laboratory of Trustworthy Distributed Computing and Service Ministry of Education Beijing University of Posts and Telecommunications Beijing China

ISBN: (纸本)9781665480468

Propaganda information that aims at influencing people’s opinions is becoming more and more common around people, especially through social media. For the detection of propaganda content, researchers have conducted studies from multiple perspectives, including document level, sentence level and fragment level. However, most existing methods have mainly focused on propaganda detection in a single language because of the lack of multilingual datasets. In this article, we first propose a Chinese and English propaganda detection dataset. Then we propose a cross-lingual propaganda detection method, using semantic and syntactic information between different languages. Extensive experiments on our multilingual dataset demonstrate the effectiveness of our proposal in cross-lingual propaganda detection.

关键词： Social networking (online) Fuses Semantics Syntactics Big Data Transformers Information filters

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A Study on Security Threats to Blockchain & Cryptocurrencies

A Study on Security Threats to Blockchain & Cryptocurrencies

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Advances in computing, Communication Control and networking (ICAC3N), international conference on

作者： Jashan Khangura Jatin Arora Chitkara University Institute of Engineering and Technology Chitkara University Punjab India

ISBN: (纸本)9781665438124

Cryptocurrency is a digital asset that works through distributed ledger technology such as a blockchain. Blockchain was dubbed as un-hackable by many, but recent incidents indicate that it is not the case. This paper aims to examine different types of cyberattacks. Attacking cryptocurrencies is much more intriguing to criminals, mainly because of the reason that reverting those funds is a laborious task in itself. This paper surveys 5 different kinds of cryptocurrency attacks and also examines different consensus algorithms used by cryptocurrencies. Despite blockchain being a leading edge technology, the vulnerabilities in the technology has caused difficulties in the past and cannot be ignored.

关键词： distributed ledger Data integrity Memory Finance Denial-of-service attack Real-time systems Blockchains

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Optimizing DG Parameters for Voltage Profile and Real Power Loss Improvement using Elephant Herd Optimization 11

Optimizing DG Parameters for Voltage Profile and Real Power ...

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11th international conference on computing, Communication and networking Technologies, ICCCNT 2020

作者： Mahajan, Shreya Verma, Yajvender Pal UIET Panjab University EEE Department Chandigarh India

ISBN: (纸本)9781728168517

The purpose of distributed generation in improving voltage profile, abating losses, slashing fuel cost and boosting efficiency is becoming important in modern power system operation. This paper summarizes an unconventional optimization technique based on the elephant herd optimization for distributed generation integration in the power system which is inspired by the herding behavior of elephant group. This article elaborates a multi objective optimization problem considering two objectives to reduce the total real power losses of the system and to minimize the overall voltage deviation by placing the distributed generation at suitable location. The objectives are collaborated into a scalar objective optimization problem by using weighted sum method. The proposed elephant herd optimization based methodology is compared with the particle swarm optimization approach for IEEE 14 bus system. The comparative results relating to voltage profile, real power losses and convergence characteristics indicate the superiority of elephant herd optimization over the particle swarm optimization. © 2020 IEEE.

关键词： distributed power generation

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Are Coordinator Election Algorithms in distributed Systems Vulnerable? 11

Are Coordinator Election Algorithms in Distributed Systems V...

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11th international conference on computing, Communication and networking Technologies, ICCCNT 2020

作者： Supase, Shital S Ingle, Rajesh B Pune Institute of Computer Technology Computer Engineering Department Pune India

ISBN: (纸本)9781728168517

Now a days distributed systems are backbone of majority of the networked applications. It has multiple entities working collaboratively. This collaboration needs to be coordinated by an entity among the member entities. The selection of such coordinator entity is critical in distributed systems. The process of coordinator selection is to be performed by member entities. This is termed as coordinator election in distributed systems. Member nodes need to communicate for electing the coordinator entity. The communication over a network makes the process of coordinator election vulnerable to faults, failures and security attacks. These vulnerabilities may lead to the threats like deletion or modification of election data and fake voting. As a result of the same the election algorithm may not terminate or the wrong entity may be elected as coordinator. Hence it is important to discover such vulnerabilities and threats. Existing coordinator election algorithms sparsely address the vulnerabilities. In this work, the vulnerabilities of the coordinator election algorithm are identified and a taxonomy for the same is proposed. The solution approaches for dealing with these vulnerabilities are discussed. © 2020 IEEE.

关键词： Taxonomies

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Message from the conference Chairs

Proceedings - 2021 21st ACIS International Semi-Virtual Wint...

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Proceedings - 2021 21st ACIS international Semi-Virtual Winter conference on Software Engineering, Artificial Intelligence, networking and Parallel/distributed computing, SNPD-Winter 2021 2021年 xiii页

作者： Kim, Jongbae Khanh, Ngo Tan Vu Soongsil University Korea Republic of Ueh Viet Nam

Presents the introductory welcome message from the conference proceedings. May include the conference officers' congratulations to all involved with the conference event and publication of the proceedings record. ...

ISBN: (纸本)9780738125510

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Building Microservices Architecture for Smart Banking 11th

Building Microservices Architecture for Smart Banking

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11th international conference on Intelligent networking and Collaborative Systems (INCoS) / 22nd international conference on Network-Based Information Systems (NBiS)

作者： Poniszewska-Maranda, Aneta Vesely, Peter Urikova, Oksana Ivanochko, Iryna Lodz Univ Technol Lodz Poland Comenius Univ Fac Management Bratislava Slovakia Lviv Polytech Natl Univ Lvov Ukraine

ISBN: (纸本)9783030290351;9783030290344

We attempt to solve in this research a problem of efficiency and, at the same time, the reduction of the operating costs when creating complex banking IT systems. We propose an approach based on micro-service architecture. The article describes functionalities as well as methods and algorithms used during model development. The work emphasizes the importance of the methodically chosen system architecture to properly implement the user requirements and meet their expectations related to independence of scaling, ease of maintenance, and the reduced mutual blockages of websites.

关键词： Microservices architecture Banking systems Economics of microservices Web services Large scale distributed architecture for smart banking

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GMAS: A Geo-Aware MAS-Based Workflow Allocation Approach on Hybrid-Edge-Cloud Environment 13

GMAS: A Geo-Aware MAS-Based Workflow Allocation Approach on ...

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IEEE 13th international conference on Cloud computing (CLOUD)

作者： Niu, Meng Cheng, Bo Chen, Jun-Liang Beijing Univ Posts & Telecommun State Key Lab Networking & Switching Technol Beijing Peoples R China

ISBN: (纸本)9781728187808

Cloud computing is expanding to distributed edge computing(or known as fog computing). Connecting edge and cloud open great potential for real-time and mobility support workflow applications. However, scheduling workflow on a hybrid edge-cloud environment is an NP-hard problem. This paper proposes the Geo-Aware Multi-Agents-System-Based Workflow Allocation Approach(GMAS). Leveraging a novel geo-aware negotiation mechanism, GMAS addresses resource location caused transmission delays, which are the primary sources of workflow bottlenecks. In Multi-Agents-System(MAS), this paper proposes a geo-aware cost model and a dynamic workflow re-structuring strategy that decrease the impact of resource locations on workflow cost. Finally, this paper evaluates GMAS on Cloudsim, and the result shows that GMAS decreases the workflow makespan and traffic overheads.

关键词： Multi-Agents System Workflow Allocation Hybrid Edge-Cloud Geo-Aware Cloud computing

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A Study on Blockchain Application in Donation Platform

A Study on Blockchain Application in Donation Platform

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Software Engineering, Artificial Intelligence, networking and Parallel/distributed computing (SNPD-Winter), ACIS international Winter conference on

作者： Wooyoung Lee Dukjin Kim Byeong Ryun Jeon Graduate School Soongsil Univ. Seoul South Korea

ISBN: (纸本)9781665418430;9781665448260

Recently, interest in the spread of the culture of sharing has been increasing at a social level due to the deepening income polarization, poverty, and the rapid growth of civil society and the importance of public interest activities of private organizations. In 2016, the National Statistical Office conducted a survey on changes in donation attitudes and recognition of donations, items that took up a large part in the area for the spread of the overall donation culture were the convenience of donation methods and the enhancement of transparency of donation organizations. The existing donation system is a way for donors to donate directly to several donor organizations. However, this method has its disadvantage: it is difficult for donors to see how their donations are spent. To address the convenience of such donation methods, based on the platform that is the core of the fourth industrial era, it enables unrestricted interaction in the network environment such as mobile or PC, inducing open participation in talent donation to the general public. Blockchain is a data forgery/modulation prevention technology based on distributed computing technology. Because the block chain records continuously changing data on all participating nodes, it is impossible to arbitrarily manipulate the data by the operators of distributed nodes. Blockchain technology is in the spotlight because it can secure transparency in transactions. In this paper, to solve these problems, we try to introduce the block chain technology into the donation system.

关键词： distributed databases Blockchain Organizations Artificial intelligence Software engineering

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Dynamic Computation Off-loading and Control based on Occlusion Detection in Drone Video Analytics 20

Dynamic Computation Off-loading and Control based on Occlusi...

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21st international conference on distributed computing and networking (ICDCN)

作者： Ramisetty, Rajeswara Rao Qu, Chengyi Aktar, Rumana Wang, Songjie Calyam, Prasad Palaniappan, Kannappan Jawaharlal Nehru Technol Univ Kakinada Vizianagaram India Univ Missouri Columbia MO USA

ISBN: (纸本)9781450377515

Unmanned Aerial Vehicles (UAVs) or drones equipped with cameras are extensively used in different scenarios such as surveillance of hazardous locations, disaster response and crime fighting. The related video streaming/analytics requires real-time drone-to-Ground Control Station (GCS) communication and computation co-ordination for desired user Quality of Experience (QoE). In situations where the quality of the video can be affected by occlusions (e.g., image distortion, frame stalling) due to network bottlenecks, there is a need to dynamically make decisions on the computation offloading and networking protocols in order to properly handle the video data for real world application purposes. In this paper, we propose a novel function-centric computing approach that helps a user to perform drone video analytics to assess a wide-area scene to chart a plan of action. Our approach involves handling network impairments affecting the switching between high resolution/low resolution video capture, or change of camera direction for assessment of the scene effectively. It also features a novel video quality enhancing algorithm based on occlusion-detection that adapts to video impairments related to image distortion and frame stalling. Our experiment results from a realistic testbed show that our approach can efficiently choose the suitable networking protocols (i.e., TCP/HTTP, UDP/RTP, QUIC) and orchestrate both the camera control on the drone, and the computation off-loading of the video analytics over limited edge computing resources. The performance improvements for computation off-loading involving our video quality enhancing algorithm are shown for different network conditions in terms of occlusion rate and processing times.

关键词： Drone video analytics Multimedia networking protocols Computation off-loading Occlusion detection Network management

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