International Conference on Critical Infrastructure Protection最新文献_第2页

An online paper recommendation system driven by user's interest model and user group 基于用户兴趣模型和用户群体驱动的在线论文推荐系统

International Conference on Critical Infrastructure Protection Pub Date : 2018-11-02 DOI: 10.1145/3290420.3290472

Hua Zhao, Ruofei Zou, H. Duan, Q. Zeng, C. Li, Xiuli Diao, Weijian Ni, N. Xie

引用次数: 2

Improving multiclass classification and outlier detection method through ensemble technique 利用集成技术改进了多类分类和离群点检测方法

International Conference on Critical Infrastructure Protection Pub Date : 2018-11-02 DOI: 10.1145/3290420.3290450

Dalton Ndirangu, W. Mwangi, L. Nderu

引用次数: 2

Efficient spark analysis on incremental datasets 增量数据集的高效火花分析

International Conference on Critical Infrastructure Protection Pub Date : 2018-11-02 DOI: 10.1145/3290420.3290460

Wei Sheng, Zhao Cao, Dacheng Qu

{"title":"Efficient spark analysis on incremental datasets","authors":"Wei Sheng, Zhao Cao, Dacheng Qu","doi":"10.1145/3290420.3290460","DOIUrl":"https://doi.org/10.1145/3290420.3290460","url":null,"abstract":"Distributed analysis platform such as Spark provides an unprecedented capacity on big data analysis processing, especially, for Extract-Transform-Load (ETL), which has won the wide recognition by academia and industry. The performance based on Spark, however, comes from immutable datasets losing flexibility of mutable ones with trivial changes. Therefore, there is an unmet demand on how to efficiently integrate distributed dynamical datasets between two or more autonomous computer systems or servers. Traditional data synchronization solutions detect changes and apply them to target datasets, which is impossible for Spark since the resilient distributed dataset (RDD) is invariant in nature. In this paper, we design a paradigm for integrating datasets from several data repositories by extending RDD mechanism to enable incremental processing. We use appended logs for each RDD component to avoid serious performance degradation caused by re-fetching full dataset. Furthermore, a cost model is proposed to evaluate the cost of merging these changes into an existing RDD or forming a new RDD from scratch, providing us a balance between incremental processing and re-fetching explicitly. Our experimental results demonstrate the necessity of incremental processing and the effectiveness of our cost model.","PeriodicalId":259201,"journal":{"name":"International Conference on Critical Infrastructure Protection","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131133786","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: 0

Experimental study on speech enhancement using DNN with perceptual weighting 基于感知加权的深度神经网络语音增强实验研究

International Conference on Critical Infrastructure Protection Pub Date : 2018-11-02 DOI: 10.1145/3290420.3290465

Wenhua Shi, Xiongwei Zhang, Xia Zou, Meng Sun

引用次数: 0

Per-bank refresh with adaptive early termination for high density DRAM 高密度DRAM的自适应提前终止逐行刷新

International Conference on Critical Infrastructure Protection Pub Date : 2018-11-02 DOI: 10.1145/3290420.3290442

Hyunggyun Yang, Min-Kyu Lee, Ki-Seok Chung

{"title":"Per-bank refresh with adaptive early termination for high density DRAM","authors":"Hyunggyun Yang, Min-Kyu Lee, Ki-Seok Chung","doi":"10.1145/3290420.3290442","DOIUrl":"https://doi.org/10.1145/3290420.3290442","url":null,"abstract":"DRAM, which is mainly used as main memory, requires a refresh operation to maintain the integrity of stored data. Since memory read and write operations to a bank are not allowed while the bank is being refreshed, a lot of memory accesses may be blocked due to refresh, which may lead to significant performance degradation. Therefore, a lot of active studies to minimize this negative performance impact of refresh have been conducted. In a refresh scheme called per-bank refresh, the refresh unit will be one bank rather than all banks in a rank, allowing memory access to other banks while a certain bank in the same rank is refreshed. However, the per-bank refresh consumes more power than all-bank refresh. In this paper, we propose a per-bank refresh method with adaptive early termination, which allows both the refresh period and the size of each row group to be non-uniformly determined, to increase the efficiency of per-bank refresh and reduce energy consumption. By using this method, compared to the basic allbank refresh model, the average weighted speed increases by about 6.4% and the energy consumption is reduced by about 51%.","PeriodicalId":259201,"journal":{"name":"International Conference on Critical Infrastructure Protection","volume":"337 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131589245","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: 0

International Conference on Critical Infrastructure Protection Pub Date : 2018-11-02 DOI: 10.1145/3290420.3290446

Changhong Zhou, Q. Zeng, H. Duan, Cong Liu

引用次数: 0

A fast spectrum sensing and revocation testbed based on USRP and GNU radio for cognitive radio networks 基于USRP和GNU无线电的认知无线电网络快速频谱感知与撤销试验台

International Conference on Critical Infrastructure Protection Pub Date : 2018-11-02 DOI: 10.1145/3290420.3290424

Wen-Kang Jia, Yun Zheng, Tain-Sao Chang

{"title":"A fast spectrum sensing and revocation testbed based on USRP and GNU radio for cognitive radio networks","authors":"Wen-Kang Jia, Yun Zheng, Tain-Sao Chang","doi":"10.1145/3290420.3290424","DOIUrl":"https://doi.org/10.1145/3290420.3290424","url":null,"abstract":"Since the use of wireless devices in the already overcrowded licensed and unlicensed bands had been further growing recently. Realization of wireless communications in Cognitive Radio (CR) is one of the most urgent research and development issues to accommodate rapidly increasing wireless access. In order to ensure avoidance of interference from Secondary Users (SUs) to Primary Users (PUs), adoption of White Space Database (WSDB) is one of the important strategies. In this paper, we have implemented the PAWS API and WSDB for spectrum allocation and show that mechanism operations with an experimental DSA network, which enables the SUs to share the White Space (WS) of PUs in a fine geolocation and timescale. In the experimental setup, the DSA network consists of the secondary transmitter node (STN) and secondary receiver node (SRN), a sensing node (SN), and primary transmitter node (PTN). The network is constructed by using the proposed spectrum sensing and revocation testbed. The testbed employs the Universal Software Radio Peripheral (USRP) devices and open source software, named GNU radio, to develop the spectrum sensing and revocation mechanism. We demonstrate the communication between the STN and the SRN, while avoiding interference to PTN which operates in the same spectrum. The experimental shows that the network is capable of detecting PTN in real time and revocation spectrum adaptively to avoid interference to primary receiver node (PRN). The experimental results are presented to show that the performance of proposed mechanism in terms of the expending time of sensing available channels and revocation spectrum.","PeriodicalId":259201,"journal":{"name":"International Conference on Critical Infrastructure Protection","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130562297","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: 0

An improved AODV routing protocol based on social relationship mining for VANET 一种基于VANET社会关系挖掘的改进AODV路由协议

International Conference on Critical Infrastructure Protection Pub Date : 2018-11-02 DOI: 10.1145/3290420.3290429

Wanbin Zhang, Xiaoqiang Xiao, Jijin Wang, Peng Lu

引用次数: 5

Optimization of FPGA-based LDPC decoder using high-level synthesis 基于fpga的LDPC解码器的高级综合优化

International Conference on Critical Infrastructure Protection Pub Date : 2018-11-02 DOI: 10.1145/3290420.3290441

G. Choi, Kyeong-Bin Park, Ki-Seok Chung

{"title":"Optimization of FPGA-based LDPC decoder using high-level synthesis","authors":"G. Choi, Kyeong-Bin Park, Ki-Seok Chung","doi":"10.1145/3290420.3290441","DOIUrl":"https://doi.org/10.1145/3290420.3290441","url":null,"abstract":"Low Density Parity Check (LDPC) codes are widely used in various communication and storage systems due to outstanding error correcting capability. In this paper, we present a Field Programmable Gate Array (FPGA) implementation of the LDPC decoder using High-Level Synthesis (HLS). Because HLS can synthesize a hardware implementation from a high-level description, it is very effective in reducing design time, and in exploring various design alternatives. One of the biggest advantages of FPGAs is flexibility, and therefore, HLS for FPGAs is widely adopted as a good hardware synthesis method. In this paper, we describe an LDPC decoder in high level language, and a HLS tool called SDSoC is used to synthesize the decoder. The proposed design is a serial LDPC decoder that requires smaller amount on hardware resource and power consumption than the conventional design. The major drawback of a serial decoder is slow speed. To overcome such drawback, optimization techniques such as array partitioning, loop unrolling, pipelining methods and fixed-point conversion are applied. With the application of these techniques, the decoding speed of the proposed implementation is 8.11 times and 2.79 times faster than that of a non-optimized implementation and that of a software-based LDPC decoder, respectively.","PeriodicalId":259201,"journal":{"name":"International Conference on Critical Infrastructure Protection","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133523821","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: 4

A dynamic and heterogeneous web application to defense webshell attacks by using diversified PHP code 一个动态的、异构的web应用程序，通过使用多样化的PHP代码来防御webshell攻击

International Conference on Critical Infrastructure Protection Pub Date : 2018-11-02 DOI: 10.1145/3290420.3290438

Weichao Li, Zheng Zhang, Liqun Wang

引用次数: 1