The rapidly increasing number of instances and types of services, especially microservices, and the growing complexity of systems create uncertainty if the existing algorithms and solutions for such problems as servic...
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ISBN:
(纸本)9781450372831
The rapidly increasing number of instances and types of services, especially microservices, and the growing complexity of systems create uncertainty if the existing algorithms and solutions for such problems as service discovery or load balancing are still the case. Building a huge infrastructure for the verification purposes is often too costly and impractical in the production environment therefore it is necessary to find other ways to test architectural approaches and algorithms. One of them is simulators. For simulating very big systems like a telecommunications radio access network the simulator should have certain features: capability of simulating a huge number of services, possibility to model heterogenic and vast network, facility to add a new type of services and logic. This paper presents a concept of such a simulator of services.
The proceedings contain 61 papers. The special focus in this conference is on Computer Science, Engineering and Education Applications. The topics include: On Optimality Conditions for Job Scheduling on Uniform Parall...
ISBN:
(纸本)9783030166205
The proceedings contain 61 papers. The special focus in this conference is on Computer Science, Engineering and Education Applications. The topics include: On Optimality Conditions for Job Scheduling on Uniform Parallel Machines;MPLS Traffic Engineering Solution of Multipath Fast ReRoute with Local and Bandwidth Protection;visualization of Expert Evaluations of the Smartness of Sociopolises with the Help of Radar Charts;Missing Data Imputation Through SGTM Neural-Like Structure for Environmental Monitoring Tasks;Study of Theoretical Properties of PSC-Algorithm for the Total Weighted Tardiness Minimization for Planning Processes Automation;dosimetric Detector Hardware Simulation Model Based on Modified Additive Fibonacci Generator;real-Time Flame Detection Using Hypotheses Generating Techniques;impact of Ground Truth Annotation Quality on Performance of Semantic Image Segmentation of Traffic Conditions;Mechanical Experimental Platform Construction Based on BOPPPS Model;training Platform Construction of Omni-Media Live Broadcast of Sport Event;applying Wavelet Transforms for Web Server Load Forecasting;a Multi-object Tracking Method Based on Bounding Box and Features;traffic Orchestration in Data Center Network Based on Software-Defined networking Technology;software/Hardware Co-design of the Microprocessor for the Serial Port Communications;Hardware Implementation Neural Network Controller on FPGA for Stability Ball on the Platform;convolution Polycategories and Categorical Splices for Modeling Neural Networks;algorithms for Forming a Knowledge Base for Decision Support Systems in Cybersecurity Tasks;digital Signature Authentication Scheme with Message Recovery Based on the Use of Elliptic Curves;decomposition Method for Synthesizing the Computer System Architecture;method of distributed Two-Level Storage System Management in a Data Center;probability Models for Validity Evaluation.
National Research and Education Networks (NRENs) are digital infrastructures that are essential for innovation in higher education. More and more, it seems obvious to improve Quality of Research and Education through ...
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ISBN:
(纸本)9781450366458
National Research and Education Networks (NRENs) are digital infrastructures that are essential for innovation in higher education. More and more, it seems obvious to improve Quality of Research and Education through REN Services. Historically, the organization of resources in the NRENs is approached centrally with a data center shared between the universities forming the NREN. This does not reflect the reality because universities also have computing infrastructures and even some laboratories in the university could also have their own servers. In this paper, we propose a new hierarchical scheme for dynamic job execution for NREN Datacenters system. This proposal is based on a three-tier architecture, representing the three levels of a NREN: laboratory, university, NREN.
The next generation military environment requires a delay-tolerant network for sharing data and resources using an interoperable computerized, Command, Control, Communications, Intelligence, Surveillance and Reconnais...
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ISBN:
(纸本)9781538693834
The next generation military environment requires a delay-tolerant network for sharing data and resources using an interoperable computerized, Command, Control, Communications, Intelligence, Surveillance and Reconnaissance (C4ISR) infrastructure. In this paper, we propose a new distributed SDN (Software-Defined Networks) architecture for tactical environments based on distributed cloudlets. The objective is to reduce the end-to-end delay of tactical traffic flow, and improve management capabilities, allowing flexible control and network resource allocation. The proposed SDN architecture is implemented over three layers: decentralized cloudlets layer where each cloudlet has its SDRN (Software-Defined Radio networking) controller, decentralized MEC (Mobile Edge computing) layer with an SDN controller for each MEC, and a centralized private cloud as a trusted third-part authority controlled by a centralized SDN controller. The experimental validations are done via relevant and realistic tactical scenarios based on strategic traffics loads, i.e., Tactical SMS (Short Message Service), UVs (Unmanned Vehicle) patrol deployment and high bite rate ISR (Intelligence, Surveillance, and Reconnaissance) video.
The proceedings contain 74 papers. The topics discussed include: 167-PFlops deep learning for electron microscopy: from learning physics to atomic manipulation;fliptracker: understanding natural error resilience in HP...
ISBN:
(纸本)9781538683842
The proceedings contain 74 papers. The topics discussed include: 167-PFlops deep learning for electron microscopy: from learning physics to atomic manipulation;fliptracker: understanding natural error resilience in HPC applications;phase asynchronous AMR execution for productive and performant astrophysical flows;cosmoflow: using deep learning to learn the universe at scale;optimizing software-directed instruction replication for GPU error detection;DAC-MAN: data change management for scientific datasets on HPC systems;topology-aware space-shared co-analysis of large-scale molecular dynamics simulations;distributed-memory hierarchical compression of dense SPD matrices;and harnessing GPU tensor cores for fast FP16 arithmetic to speed up mixed-precision iterative refinement solvers.
The following topics are dealt with: learning (artificial intelligence); social networking (online); natural language processing; pattern classification; support vector machines; computer games; medical signal process...
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ISBN:
(数字)9781728172491
ISBN:
(纸本)9781728172507
The following topics are dealt with: learning (artificial intelligence); social networking (online); natural language processing; pattern classification; support vector machines; computer games; medical signal processing; Internet of Things; text analysis; sentiment analysis.
Eventual consistency is a popular consistency model for geo-replicated data stores. Although eventual consistency provides high performance and availability, it can cause anomalies that make programming complex for ap...
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ISBN:
(纸本)9781450360944
Eventual consistency is a popular consistency model for geo-replicated data stores. Although eventual consistency provides high performance and availability, it can cause anomalies that make programming complex for application developers. Session guarantees can remove some of these anomalies while causing much lower overhead compared with stronger consistency models. In this paper, we provide a protocol for providing session guarantees for NuKV, a key-value store developed for services with very high availability and performance requirements at eBay. NuKV relies on the Raft protocol for replication inside datacenters, and uses eventual consistency for replication among datacenters. We provide modified versions of conventional session guarantees to avoid the problem of slowdown cascades in systems with large numbers of partitions. We also use Hybrid Logical Clocks to eliminate the need for delaying write operations to satisfy session guarantees. Our experiments show that our protocol provides session guarantees with a negligible overhead when compared with eventual consistency.
The dispersion problem on graphs requires k robots placed arbitrarily at the n nodes of an anonymous graph, where k <= n, to coordinate with each other to reach a final configuration in which each robot is at a dis...
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ISBN:
(纸本)9781450360944
The dispersion problem on graphs requires k robots placed arbitrarily at the n nodes of an anonymous graph, where k <= n, to coordinate with each other to reach a final configuration in which each robot is at a distinct node of the graph. The dispersion problem is important due to its relationship to graph exploration by mobile robots, scattering on a graph, and load balancing on a graph. In addition, an intrinsic application of dispersion has been shown to be the relocation of self-driven electric cars (robots) to recharge stations (nodes). We propose five algorithms to solve dispersion on graphs. The first three algorithms require O(k log Delta) bits at each robot andO(m) steps running time, wherem is the number of edges and Delta is the degree of the graph. The algorithms differ in whether they address the synchronous or the asynchronous system model, and in what, where, and how data structures are maintained. The fourth algorithm, for the asynchronous model, has a space usage of O(D log Delta) bits at each robot and uses O(Delta(D)) steps, where D is the graph diameter. The fifth algorithm, for the asynchronous model, has a space usage of O(max(log k, log Delta)) bits at each robot and uses O((m - n) k) steps.
In this paper, we propose a general scheme, called Algorithm STlC, to compute spanning-tree-like data structures on arbitrary networks. STlC is self-stabilizing and silent and, despite its generality, is also efficien...
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ISBN:
(纸本)9781450360944
In this paper, we propose a general scheme, called Algorithm STlC, to compute spanning-tree-like data structures on arbitrary networks. STlC is self-stabilizing and silent and, despite its generality, is also efficient. It is written in the locally shared memory model with composite atomicity assuming the distributed unfair daemon, the weakest scheduling assumption of the model. Its stabilization time is in O(n(maxCC)) rounds, where n(maxCC) is the maximum number of processes in a connected component. We also exhibit polynomial upper bounds on its stabilization time in steps and process moves holding for large classes of instantiations of Algorithm STlC. We illustrate the versatility of our approach by proposing several such instantiations that efficiently solve classical problems such as leader election, as well as, unconstrained and shortest-path spanning tree constructions.
Movie critics and audience play a crucial role in the success or failure of a movie. Both audiences and critics provide their opinions for a movie using different platforms like IMDB, Rotten tomatoes and Metacritics. ...
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ISBN:
(数字)9781728171326
ISBN:
(纸本)9781728171333
Movie critics and audience play a crucial role in the success or failure of a movie. Both audiences and critics provide their opinions for a movie using different platforms like IMDB, Rotten tomatoes and Metacritics. Our goal is to correlate the ratings of Netflix movies with the fluctuation in stock price of Netflix as an organisation. Here, multiple factors like Sequel, Genre, Actor, time of release of the movie plays a crucial role which has a direct impact on the ratings and finally on the stock value.
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