2017 International Conference on Inventive Communication and Computational Technologies (ICICCT)最新文献_第10页

A cache replacement policy based on re-reference count 基于重引用计数的缓存替换策略

2017 International Conference on Inventive Communication and Computational Technologies (ICICCT) Pub Date : 2017-03-01 DOI: 10.1109/ICICCT.2017.7975173

Sreya Sreedharan, Shimmi Asokan

{"title":"A cache replacement policy based on re-reference count","authors":"Sreya Sreedharan, Shimmi Asokan","doi":"10.1109/ICICCT.2017.7975173","DOIUrl":"https://doi.org/10.1109/ICICCT.2017.7975173","url":null,"abstract":"The cache replacement policy is a major factor which determines the effectiveness of memory hierarchy. The replacement policy affects both the hit rate and the access latency of the cache. It decides the cache block to be replaced to give room for the incoming block. The replacement policy has to be chosen in such a way that the cache misses are reduced. Last level cache misses causes hundreds of stall cycles due to the need for main memory access. So last level cache misses are given more priority over L1 cache misses. The traditional cache replacement policy used is Least Recently Used (LRU) policy. LRU policy favors workloads having cyclic access pattern which fit in cache, but it exhibit thrashing behavior for memory-intensive workloads that does not fit in the available cache. Hence, many replacement policies were proposed to improve the miss rate for last level caches while maintaining low hardware overhead and minimum design changes. Here a novel replacement policy which is a variation of LRU Insertion policy (LIP) based on re-reference count is proposed. The promotion policy in LIP is modified to implement the new policy which is based on the re-reference count. The proposed replacement policy was implemented and performance comparisons of the replacement policies were done on Gem5 simulator using cpu2006 benchmarks. Under this policy, the memory intensive workload mcf attains 64% improvement in L2 cache miss rate over LRU policy.","PeriodicalId":185697,"journal":{"name":"2017 International Conference on Inventive Communication and Computational Technologies (ICICCT)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132805693","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

Analysis of synthetic aperture radar image enchancement algorithm 合成孔径雷达图像增强算法分析

2017 International Conference on Inventive Communication and Computational Technologies (ICICCT) Pub Date : 2017-03-01 DOI: 10.1109/ICICCT.2017.7975179

S. Anand, A. K. Kavya

{"title":"Analysis of synthetic aperture radar image enchancement algorithm","authors":"S. Anand, A. K. Kavya","doi":"10.1109/ICICCT.2017.7975179","DOIUrl":"https://doi.org/10.1109/ICICCT.2017.7975179","url":null,"abstract":"Most airborne and orbital SAR systems are monostatic, in that they employ a single antenna for transmission and reception of the radar signal. In optics, an imaging lens applies a phase function to a scattered field so that coherent summation occurs at the correct location in the image plane. Areas of current research and development include foliage penetration, ground penetration, imaging moving vehicles, bistatic imaging and techniques for improved image quality. Synthetic aperture radar imaging provides high resolution images of large areas. The intensities of pixels in a SAR image are based on the spatial orientation, roughness, and dielectric constant of the surface imaged. SAR is an active sensor, transmitting its own energy, and then measuring the return scattered by the earth's surface back to the satellite's antenna. SAR processing is the transformation of raw SAR signal data into a spatial image Due to the imaging mechanism, Synthetic Aperture Radar (SAR) images are susceptible to speckle noise, which affects radar image interpretation. So image enhancement is important topic of improves SAR image clarity. A nonlinear image enhancement algorithm based on nonsubsampled contourlet transform (NSCT) is proposed in this paper. The image is decomposed into coefficients of different scales and directions through nonsubsampled contourlet transform. It is denoised by the threshold method of the multi-scale product of NSCT coefficients. Then thresholds of the nonlinear enhancement function are determined according to the coefficients of each scale. The two parameters of the function, among which one is used to control the range of enhancement and the other can determine the strength of enhancement, are obtained by solving nonlinear equations. The coefficients processed by the enhancement function are used to reconstruct the image. The simulation results on the Matlab platform show that the algorithm has a good effect of enhancing details of images and suppressing noise signals meanwhile.","PeriodicalId":185697,"journal":{"name":"2017 International Conference on Inventive Communication and Computational Technologies (ICICCT)","volume":"48 12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116175780","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

Simulation of QoS parameters in cognitive radio system using SMO algorithm 基于SMO算法的认知无线电系统QoS参数仿真

2017 International Conference on Inventive Communication and Computational Technologies (ICICCT) Pub Date : 2017-03-01 DOI: 10.1109/ICICCT.2017.7975206

V. Rana, P. S. Mundra

{"title":"Simulation of QoS parameters in cognitive radio system using SMO algorithm","authors":"V. Rana, P. S. Mundra","doi":"10.1109/ICICCT.2017.7975206","DOIUrl":"https://doi.org/10.1109/ICICCT.2017.7975206","url":null,"abstract":"Cognitive radio (CR) is the current growing technology in wireless communication field and has increase the ability to use the frequency spectrum more properly. The main objective of cognitive radios is to sense the surrounding and use primary user's vacant spaces and allot them to the secondary users without interference each other. This paper presents the optimal solution and optimizes the Quality of services (QoS) parameters to minimum i.e. smaller as compare other solutions which are induced by different optimization techniques Simulated Annealing (SA) and Genetic algorithm (GA). The proposed algorithm called spider monkey optimization algorithm (SMO). SMO is a swarm intelligence technique which works on foraging behaviour of spider monkeys. SMO is tentative and lapse based synergetic iterative process. Spider monkeys have been categorized as fusion-fission social structure (FHSS) based animals and they divides into smaller subgroups and search food. The proposed algorithm has been used to optimize the performance of QoS parameters in terms of minimum power consumption, minimum bit error rate (BER), maximum throughput, minimum interference and maximum spectral efficiency. The simulation results shows that the fitness scores obtained by the proposed algorithm i.e. SMO are better (smaller) than SA and GA algorithm in the optimization of QoS parameters of cognitive radio system. The proposed algorithm is better (smaller) than the existing algorithm.","PeriodicalId":185697,"journal":{"name":"2017 International Conference on Inventive Communication and Computational Technologies (ICICCT)","volume":"143 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122869979","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

I2C protocol and its clock stretching verification using system verilog and UVM 使用系统verilog和UVM验证I2C协议及其时钟扩展

2017 International Conference on Inventive Communication and Computational Technologies (ICICCT) Pub Date : 2017-03-01 DOI: 10.1109/ICICCT.2017.7975245

Lakshmi Manasa Kappaganthu, M. Prakash, Avinash Yadlapati

{"title":"I2C protocol and its clock stretching verification using system verilog and UVM","authors":"Lakshmi Manasa Kappaganthu, M. Prakash, Avinash Yadlapati","doi":"10.1109/ICICCT.2017.7975245","DOIUrl":"https://doi.org/10.1109/ICICCT.2017.7975245","url":null,"abstract":"Present day's technology has reached a goal where an entire system can be implemented on a single chip which is nothing but called system on chip (SOC). It involves microcontrollers and various peripheral devices with each peripheral device having its own intellectual property (IP) named as IP cores. Serial Communication is established between these IP cores using various protocols like RS232, RS422 and UART etc. These protocols perform point to point communication which requires huge wiring connections, multiplexing of all the bus connections to deliver the information to the IP Cores. To overcome this I2C protocol is developed by Philips, which is a two line communication. Here only two pins i.e., SCL, SDA establish connection between various devices considering one as master and other as slave, as in [1]. These two pins communicate using particular commands like start, address, read/write, acknowledgement and stop commands. Both 7-bit and 10-bit addressing formats can be used, 10-bit addressing supports more addressing lines i.e., 1024 compared to 127 addressing lines in 7bit mode. Clock stretching case is explained here clearly i.e., when a slave needs to have control on the clock generated by the master. The advantage in this protocol is it has low wiring; data transfer rate can be improved using Ultra-Fast mode (UFm), as in [2]. In this paper they perform verification for the design of an I2C protocol between a master and a slave using system Verilog and UVM in the tool SimVision.","PeriodicalId":185697,"journal":{"name":"2017 International Conference on Inventive Communication and Computational Technologies (ICICCT)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123056799","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: 5

The best fit process model for the utilization of the physical resources in hospitals by applying inductive visual miner 应用感应视觉挖掘技术建立医院物理资源利用的最佳拟合过程模型

2017 International Conference on Inventive Communication and Computational Technologies (ICICCT) Pub Date : 2017-03-01 DOI: 10.1109/ICICCT.2017.7975212

K. Ganesha, M. Soundarya, K. Supriya

{"title":"The best fit process model for the utilization of the physical resources in hospitals by applying inductive visual miner","authors":"K. Ganesha, M. Soundarya, K. Supriya","doi":"10.1109/ICICCT.2017.7975212","DOIUrl":"https://doi.org/10.1109/ICICCT.2017.7975212","url":null,"abstract":"The main aim of a hospital is to provide an effective and efficient environment for the patient which supports effective utilization of resources for the diagnostic center which reduces the complexity of diagnosis process. In order to do so it is necessary to have an accurate view of care flows under consideration. In this paper we apply process mining techniques to obtain meaningful knowledge about this flows, e.g., to discover typical paths proceeded by particular group of symptoms that create a disease of a patient. In this paper lab test dataset is considered as a baseline scenario where in productive process models are created and checked for the efficiency using inductive visual miner algorithm. In order to do so we extracted relevant event logs from hospital information system in that we have taken diagnosis of lab test logs using ProM framework. Using inductive visual miner we are able to generate a soundness model for a health sector. The result shows how the process mining can be used to provide new insight that simplifies upgrading of existing health care flows and give insight about how it can be improved.","PeriodicalId":185697,"journal":{"name":"2017 International Conference on Inventive Communication and Computational Technologies (ICICCT)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117067938","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: 7

Comparative study on SIFT and SURF face feature descriptors SIFT与SURF人脸特征描述符的比较研究

2017 International Conference on Inventive Communication and Computational Technologies (ICICCT) Pub Date : 2017-03-01 DOI: 10.1109/ICICCT.2017.7975187

S. Jain, B. Kumar, R. Shettigar

引用次数: 12

ZnO based homojunction p-i-n solar cell to self-power UV detector ZnO基同结p-i-n太阳能电池自供电紫外探测器

2017 International Conference on Inventive Communication and Computational Technologies (ICICCT) Pub Date : 2017-03-01 DOI: 10.1109/ICICCT.2017.7975208

Khomdram Jolson Singh, Chabungbam Akendra Singh, Thokchom Jayenta Singh, Dhanu Chettri, S. Sarkar

{"title":"ZnO based homojunction p-i-n solar cell to self-power UV detector","authors":"Khomdram Jolson Singh, Chabungbam Akendra Singh, Thokchom Jayenta Singh, Dhanu Chettri, S. Sarkar","doi":"10.1109/ICICCT.2017.7975208","DOIUrl":"https://doi.org/10.1109/ICICCT.2017.7975208","url":null,"abstract":"A simple novel and low cost efficient all ZnO based homojunction p-i-n solar cell without any top transparent conductive oxide layer and aback reflector layer are numerically modeled using 2D device simulation tool ATLAS. Optimization of the different layers, doping level and power conversion efficiency of the model has been done. The spectral response such as transmissivity, reflectance, and absorptance under AM1.5 solar illumination is well studied. Although the ZnO material responds to only a small portion of sunlight in UV region of AM1.5, the External Quantum efficiency(EQE) of the model is found to be nearly 70% and efficiency upto 16% for 1000nm thick i-layer ZnO. These optimized results are validated with other reported published experimental works. The wavelength dependent photo response properties of the homojunction are investigated in detail by studying the effect of light illumination on current-voltage (I-V) characteristics, photocurrent and spectral response at room temperature. From the photocurrent spectra, it is observed that the ultraviolet (UV)photons are absorbed in the depleted n-ZnO under positive bias conditions with responsivity of 1.6 mA/V. This indicates that such a model of ZnO p-i-n thin film homojunction can be used to sense UV though the photo response for UV as well as generate a significant energy to self-power this sensor.","PeriodicalId":185697,"journal":{"name":"2017 International Conference on Inventive Communication and Computational Technologies (ICICCT)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126561996","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

Literature review of image features and classifiers used in leaf based plant recognition through image analysis approach 基于图像分析方法的植物叶片识别中图像特征和分类器的文献综述

2017 International Conference on Inventive Communication and Computational Technologies (ICICCT) Pub Date : 2017-03-01 DOI: 10.1109/ICICCT.2017.7975176

A. Sabu, K. Sreekumar

引用次数: 30

A step down transformerless single switch integerated buck and buck-boost converter 一种无降压变压器单开关集成降压-升压变换器

2017 International Conference on Inventive Communication and Computational Technologies (ICICCT) Pub Date : 2016-10-17 DOI: 10.11591/IJAPE.V5.I3.PP144-150

P. Maithili, K. Deepthi

引用次数: 2