Research in Adaptive and Convergent Systems最新文献_第6页

Evaluation of high-frequency financial transaction processing in distributed memory systems 分布式存储系统中高频金融交易处理的评价

Research in Adaptive and Convergent Systems Pub Date : 2014-10-05 DOI: 10.1145/2663761.2664234

Woochur Kim, Jungmee Yun, Hyedong Jung

{"title":"Evaluation of high-frequency financial transaction processing in distributed memory systems","authors":"Woochur Kim, Jungmee Yun, Hyedong Jung","doi":"10.1145/2663761.2664234","DOIUrl":"https://doi.org/10.1145/2663761.2664234","url":null,"abstract":"A financial system requires processing a large-scale data stream. These data are considerably large for realtime processing. Using a distributed memory system is the most efficient means to process and store this data. In addition, using a high-performance interconnection technology such as InfiniBand is necessary because existing Ethernet technology that uses low bandwidth and possesses high latency can have detrimental effects on the financial system. In particular, in a system that processes large-scale financial data, high latency can cause financial loss. Therefore, high-performance interconnection technology is critical for processing large-scale financial data. We propose a scheme that uses high-performance interconnection technology in a distributed memory system for processing a large-scale data stream. In experiments that test the performance of our system, we use Redis, which is an open source data structure server, and messages of the size of the actual financial data in existence. Experimental results show that our distributed memory system using InfiniBand can process financial transactions with high throughput and low latency.","PeriodicalId":120340,"journal":{"name":"Research in Adaptive and Convergent Systems","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115429645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Application of sim-hash algorithm and big data analysis in spam email detection system sim-hash算法与大数据分析在垃圾邮件检测系统中的应用

Research in Adaptive and Convergent Systems Pub Date : 2014-10-05 DOI: 10.1145/2663761.2664221

Phuc-Tran Ho, Hee Sun Kim, Sung-Ryul Kim

引用次数: 13

A cost-efficient mechanism for dynamic VM provisioning in cloud computing 一种在云计算中提供动态虚拟机的经济高效机制

Research in Adaptive and Convergent Systems Pub Date : 2014-10-05 DOI: 10.1145/2663761.2664217

Yeongho Choi, Yujin Lim

引用次数: 5

Pedestrian detection of road scenes using depth and intensity features 基于深度和强度特征的道路场景行人检测

Research in Adaptive and Convergent Systems Pub Date : 2014-10-05 DOI: 10.1145/2663761.2664226

S. Gurmu, Min-Woo Park, Soon Ki Jung

引用次数: 0

Research in Adaptive and Convergent Systems Pub Date : 2014-10-05 DOI: 10.1145/2663761.2664224

Inbok Lee, P. Do, Phuoc Do, Sung-Ryul Kim

引用次数: 0

Design of data backup on distributed memory system based on key-value store using hot/cold data management 采用热/冷数据管理的键值存储分布式存储系统数据备份设计

Research in Adaptive and Convergent Systems Pub Date : 2014-10-05 DOI: 10.1145/2663761.2664193

Woochur Kim, Ikhyun Cho, D. Min, Chris Sung

引用次数: 0

Fairness-oriented spectrum sharing for ODFC-based WRAN 面向公平的odfc无线局域网频谱共享

Research in Adaptive and Convergent Systems Pub Date : 2014-10-05 DOI: 10.1145/2663761.2664201

Md Nashid Anjum, Jun Huang, Yanxiao Zhao, Wei Wang

{"title":"Fairness-oriented spectrum sharing for ODFC-based WRAN","authors":"Md Nashid Anjum, Jun Huang, Yanxiao Zhao, Wei Wang","doi":"10.1145/2663761.2664201","DOIUrl":"https://doi.org/10.1145/2663761.2664201","url":null,"abstract":"Wireless Regional Area Network (WRAN) is standardized by IEEE 802.22 to improve the spectrum utilization in the TV frequency spectrum. Spectrum sharing or coexistence among unlicensed users, plays a crucial role in the spectrum utilization and hence it has been identified as a critical issue in WRAN. Coexistence between unlicensed users is referred to as self-coexistence for which IEEE 802.22 designs the On Demand Frame Contention (ODFC) as a solution. The traditional 802.22 ODFC selects a contention winner in a random manner where all the contenders have a uniform winning probability distribution, without considering different frame demands from contenders. Consequently, the winner will occupy the channel for a long time if it has a larger frame demand while unsuccessful contenders may suffer from spectrum starvation, thus ODFC does not ensure a fair self-coexistence. In this paper, we investigate the fairness issue and present a novel approach termed Fairness-oriented ODFC (F-ODFC). The proposed approach considers several effects including different frame demands from contenders and previous contention failure rates among multiple users with the same frame demands. In F-ODFC, we employ a probabilistic approach rather than the traditional deterministic solution to attack the fairness problem. Extensive simulations verify that the proposed F-ODFC is able to provide a fair self-coexistence mechanism with varied frame demands and significantly enhance the fairness of ODFC-based WRAN.","PeriodicalId":120340,"journal":{"name":"Research in Adaptive and Convergent Systems","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122650950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Fast image filtering via adaptive noise detection 快速图像滤波通过自适应噪声检测

Research in Adaptive and Convergent Systems Pub Date : 2014-10-05 DOI: 10.1145/2663761.2664228

Tuan-Anh Nguyen, Jong-Geun Oh, Min-Cheol Hong

引用次数: 1

Stixels estimation through stereo matching of road scenes 基于道路场景立体匹配的像素估计

Research in Adaptive and Convergent Systems Pub Date : 2014-10-05 DOI: 10.1145/2663761.2664218

Kwang Hee Won, J. Son, Soon Ki Jung

引用次数: 3

Experimental approach: energy-and-bandwidth spectrum sensing using GNU radio and USRP 实验方法:使用GNU无线电和USRP进行能量和带宽频谱感知

Research in Adaptive and Convergent Systems Pub Date : 2014-10-05 DOI: 10.1145/2663761.2664200

Yanxiao Zhao, Jems Pradhan, Jun Huang, Hui Sun

{"title":"Experimental approach: energy-and-bandwidth spectrum sensing using GNU radio and USRP","authors":"Yanxiao Zhao, Jems Pradhan, Jun Huang, Hui Sun","doi":"10.1145/2663761.2664200","DOIUrl":"https://doi.org/10.1145/2663761.2664200","url":null,"abstract":"Spectrum sensing is an essential process to implement dynamic spectrum access successfully and hence improve the spectrum utilization. This paper focuses on an experimental investigation of spectrum sensing using GNU radio and Universal Software Radio Peripheral (USRP) board. In the most related works, the method of energy detection is widely used for experiments on spectrum sensing, in which the energy amplitude of the received signal is the sole parameter to determine a channel's status. Specifically, if the amplitude of received energy exceeds a given threshold, the channel is detected busy, otherwise the channel is sensed idle. By observing experimental results, we find that the energy amplitudes of unwanted signals, which may be either interference or noise or both, are often at the same level as the desired signal. This will lead to a false alarm if the traditional energy detection is employed. At the same time, the bandwidth of unwanted signals are usually narrow and around 10KHz in a lab environment, which is far less than a regular signal's bandwidth, e.g. 40MHz in 802.11n and 20MHz in 802.11a. Inspired by these observations, we propose a new and simple approach termed Energy-and-Bandwidth Spectrum Sensing (EBSS), in which both the energy level and bandwidth of the received signal are taken into account. In addition, the sensing performance including false alarm and miss detection are analyzed. Extensive experiments are conducted and results verify that both false alarm and miss detection can be significantly reduced by the proposed approach.","PeriodicalId":120340,"journal":{"name":"Research in Adaptive and Convergent Systems","volume":"2 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114122407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2