2011 Frontiers of Information Technology最新文献

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Browsed-Back Post Event Analyzer 后浏览事件分析器
2011 Frontiers of Information Technology Pub Date : 2011-12-19 DOI: 10.1109/FIT.2011.60
Ahmad Ali, Ilyas Butt, Asifullah Khan
{"title":"Browsed-Back Post Event Analyzer","authors":"Ahmad Ali, Ilyas Butt, Asifullah Khan","doi":"10.1109/FIT.2011.60","DOIUrl":"https://doi.org/10.1109/FIT.2011.60","url":null,"abstract":"Face recognition is considered as the integral part of the video surveillance or video security system. Most of the video surveillance systems recognize human on the basis of face, but the careful study shows that faces become vague from cameras either due to mask worn by terrorists or thieves, or due to distance from camera. This constraint makes thorny the investigation of an event after it has occurred. The objective of this paper is to propose a system that can recognize humans on the basis of their cloth color irrespective of their face ambiguity so that wearing of mask and distance of people from camera does not make any difference. The system is composed of two parts. One part detect the humans present in the video, segment the detected humans according to their trouser and shirt color and store the parameters of these clusters found with color based K-mean clustering. The second part is the query system. It provides an interface to the user to enter the query to get the required information from the video. By using this system we can convert a lot of available data (in the form of video) in to fruitful information. The system can also be used as image indexing with some modifications.","PeriodicalId":101923,"journal":{"name":"2011 Frontiers of Information Technology","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116480041","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
Kalman Filter Based State Estimation for Linearized Twin Rotor System 基于卡尔曼滤波的线性化双转子系统状态估计
2011 Frontiers of Information Technology Pub Date : 2011-12-19 DOI: 10.1109/FIT.2011.40
Khawaja Shafiq Haider, I. H. Kazmi, M. Rehman
{"title":"Kalman Filter Based State Estimation for Linearized Twin Rotor System","authors":"Khawaja Shafiq Haider, I. H. Kazmi, M. Rehman","doi":"10.1109/FIT.2011.40","DOIUrl":"https://doi.org/10.1109/FIT.2011.40","url":null,"abstract":"In this paper, states estimation for MIMO Twin Rotor System (TRS) is performed. In practical, often, system states are unknown or immeasurable. In applications like state feedback control design, fault diagnostics or system monitoring, the states information is needed. The precise estimation of states can be done and verified using Kalman filter as state observer. For generation and confirmation of correct states estimate, DC inputs (resembling practical inputs) are developed and outputs from TRS model are collected. The I/O data is invoked in Kalman filter and resulting states estimates are verified for correctness first by examining the state error covariance and then by comparing the evolution of actual and estimated states. The results show that the Kalman state estimates are highly precise and fast convergent to the actual states. The extracted TRS states information is usable for fault diagnostics, control design, system monitoring or as an alternate to costly instruments used to measure system states in industries.","PeriodicalId":101923,"journal":{"name":"2011 Frontiers of Information Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130746148","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
Evolution of Orthogonal Frequency Division Multiplexing Modulation to Discrete Wavelet Multitone 正交频分复用调制向离散小波多音的演变
2011 Frontiers of Information Technology Pub Date : 2011-12-19 DOI: 10.1109/FIT.2011.19
Tabassum Nawaz Bajwa, Arsla Khan, S. Baig
{"title":"Evolution of Orthogonal Frequency Division Multiplexing Modulation to Discrete Wavelet Multitone","authors":"Tabassum Nawaz Bajwa, Arsla Khan, S. Baig","doi":"10.1109/FIT.2011.19","DOIUrl":"https://doi.org/10.1109/FIT.2011.19","url":null,"abstract":"Orthogonal frequency division multiplexing (OFDM) was proposed in literature as a measure to counter inter-symbol interference (ISI). OFDM has been standardized in various IEEE standards, such as wireless LANS, digital audio broadcasting etc. However, OFDM has a few disadvantages, concerned with the addition of redundant data in cyclic-prefix that it carries. Moreover, its high side-lobes result in significant signal interference. Therefore, a variant of OFDM, namely Discrete Wavelet Multi-tone (DWMT) in wire line and Wavelet OFDM (WOFDM) in wireless channel was proposed in recent history. We have outlined the motivation behind this evolution from OFDM to WOFDM, and have given an overview of its performance analysis as discussed in literature.","PeriodicalId":101923,"journal":{"name":"2011 Frontiers of Information Technology","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123378237","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
Operating System-Aware Cache Optimization Techniques for Multi Core Processors 多核处理器的操作系统感知缓存优化技术
2011 Frontiers of Information Technology Pub Date : 2011-12-19 DOI: 10.1109/FIT.2011.26
H. Khatoon, S. H. Mirza, Talat Altaf
{"title":"Operating System-Aware Cache Optimization Techniques for Multi Core Processors","authors":"H. Khatoon, S. H. Mirza, Talat Altaf","doi":"10.1109/FIT.2011.26","DOIUrl":"https://doi.org/10.1109/FIT.2011.26","url":null,"abstract":"Operating system plays a major role in effective memory management and has a significant impact on the performance of applications. In a Chip Multiprocessor, the on-chip memory hierarchy is an important resource that plays a significant role in determining the overall performance of an application. In addition to a number of hardware optimization techniques that work for all types of applications, some software controlled optimization techniques are also effective for improving the performance of on-chip memory hierarchy. This is so because the software controlled techniques generally have a global view of other concurrently running workloads. A better solution to the memory performance problem is to couple the operating system policies and mechanisms to the hardware techniques for management of on-chip memory hierarchy and its optimizations. This paper gives an overview of all such designs that have coupled the on-chip cache optimization techniques with the operating system mechanisms and policies. More techniques are suggested that would be investigated to predict their effectiveness.","PeriodicalId":101923,"journal":{"name":"2011 Frontiers of Information Technology","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125049023","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
Assessment and Support for Software Capstone Projects at the Undergraduate Level: A Survey and Rubrics 本科阶段软件顶点项目的评估和支持:调查和标准
2011 Frontiers of Information Technology Pub Date : 2011-12-19 DOI: 10.1109/FIT.2011.13
Ehsan Ahmad, Bilal Raza, R. Feldt
{"title":"Assessment and Support for Software Capstone Projects at the Undergraduate Level: A Survey and Rubrics","authors":"Ehsan Ahmad, Bilal Raza, R. Feldt","doi":"10.1109/FIT.2011.13","DOIUrl":"https://doi.org/10.1109/FIT.2011.13","url":null,"abstract":"Software engineering and computer science students conduct a capstone project during the final year of their degree programs. These projects are essential in validating that students have gained required knowledge and they can synthesize and use that knowledge to solve real world problems. However, the external requirements on educational programs often do not provide detailed guidelines for how to conduct or support these capstone projects, which may lead to variations among universities. This paper presents the results from a survey conducted at 19 different Pakistani universities of the current management practices and assessment criteria used for the capstone project courses at Undergraduate level. Based upon the results of this survey and similar work on Master Thesis capstone projects in Sweden, we present assessment rubrics for software-related undergraduate capstone projects. We also present recommendations for the continuous improvement of capstone projects.","PeriodicalId":101923,"journal":{"name":"2011 Frontiers of Information Technology","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125957799","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: 8
MCDM Method and Semantics Integration for Unified Communication Management and Control 统一通信管理与控制的MCDM方法与语义集成
2011 Frontiers of Information Technology Pub Date : 2011-12-19 DOI: 10.1109/FIT.2011.56
Sajjad Ali Musthaq, Christophe Lohr, A. Gravey
{"title":"MCDM Method and Semantics Integration for Unified Communication Management and Control","authors":"Sajjad Ali Musthaq, Christophe Lohr, A. Gravey","doi":"10.1109/FIT.2011.56","DOIUrl":"https://doi.org/10.1109/FIT.2011.56","url":null,"abstract":"A dynamic decision making framework for mulithomed infrastructure with convergence, unification and heterogeneity orientation is presented. Diversity and dimensionality of the multifaceted service, control, transport and access planes along with multiple objectives over the platform has led us to extend a MCDM method (Grey Relational Analysis). Extended method is then integrated with ontology for capturing semantics and dynamic variations. MCDM helps in achieving the multiple objectives on the basis of multi-disciplinary information domains. The ontology, on the other hand, overcomes the semantic matching and reasoning issues using conventional object-oriented techniques with the help of inference engine. A simple use-case involving the dynamic decision-based routing at private-public network border is presented to validate the proposed solution. The system gives higher throughput and lower call dropping probability with an add-on susceptible delay offering good QoS.","PeriodicalId":101923,"journal":{"name":"2011 Frontiers of Information Technology","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132049401","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
A Survey on Sign Language Recognition 手语识别研究综述
2011 Frontiers of Information Technology Pub Date : 2011-12-19 DOI: 10.1109/FIT.2011.25
Sumaira Kausar, M. Y. Javed
{"title":"A Survey on Sign Language Recognition","authors":"Sumaira Kausar, M. Y. Javed","doi":"10.1109/FIT.2011.25","DOIUrl":"https://doi.org/10.1109/FIT.2011.25","url":null,"abstract":"Sign Language (SL) recognition is getting more and more attention of the researchers due to its widespread applicability in many fields. This paper is based on the survey of the current research trends in the field of SL recognition to highlight the current status of different research aspects of the area. Paper also critically analyzed the current research to identify the problem areas and challenges faced by the researchers. This identification is aimed at providing guideline for the future advances in the field.","PeriodicalId":101923,"journal":{"name":"2011 Frontiers of Information Technology","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134608274","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: 46
Optimizing Predictive Prefetching in Multi-client Single-Server Environment 多客户端单服务器环境下预测预取优化
2011 Frontiers of Information Technology Pub Date : 2011-12-19 DOI: 10.1109/FIT.2011.36
Naveed Ahmad, Azam Khan, Faiza Bibi
{"title":"Optimizing Predictive Prefetching in Multi-client Single-Server Environment","authors":"Naveed Ahmad, Azam Khan, Faiza Bibi","doi":"10.1109/FIT.2011.36","DOIUrl":"https://doi.org/10.1109/FIT.2011.36","url":null,"abstract":"Web caching and web prefetching are major areas of research. Both techniques are used for locating resources local to the user. The prefetching techniques make use of probability and statics for the availability of web document local to the user. This research focused on invention of model technique that provides resources local for the users. This method's results are compared for optimizes resources in web prefetching. The mechanism proposed for the prefetching document will extract the resources and make an easy access of resources for users.","PeriodicalId":101923,"journal":{"name":"2011 Frontiers of Information Technology","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123985814","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
On Robust Approaches to the Semidefinite Relaxation Detector 半定松弛检测器的鲁棒方法
2011 Frontiers of Information Technology Pub Date : 2011-12-19 DOI: 10.1109/FIT.2011.12
Jaffer Ali, H. Tariq, M. Qaisrani
{"title":"On Robust Approaches to the Semidefinite Relaxation Detector","authors":"Jaffer Ali, H. Tariq, M. Qaisrani","doi":"10.1109/FIT.2011.12","DOIUrl":"https://doi.org/10.1109/FIT.2011.12","url":null,"abstract":"The semi definite relaxation detector is one of several approaches to quasi-maximum likelihood detection that have been proposed in the literature. This detector can provide near maximum likelihood performance at polynomial time complexity thereby sparking the interest of the research community. In this work, we investigate how the semi definite relaxation detector can be made robust to model/channel uncertainties. Several models of uncertainty are studied and some plausible techniques of making the semi definite relaxation detector robust to these uncertainties are described.","PeriodicalId":101923,"journal":{"name":"2011 Frontiers of Information Technology","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122677461","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
Online UPnP A/V Device Database for Quick and Easy Capability Checking 在线UPnP A/V设备数据库,快速方便的能力检查
2011 Frontiers of Information Technology Pub Date : 2011-12-19 DOI: 10.1109/FIT.2011.65
A. Riener, Martin Gutenbrunner
{"title":"Online UPnP A/V Device Database for Quick and Easy Capability Checking","authors":"A. Riener, Martin Gutenbrunner","doi":"10.1109/FIT.2011.65","DOIUrl":"https://doi.org/10.1109/FIT.2011.65","url":null,"abstract":"Creating and customizing ubiquitous media networks with UPnP A/V compliant components from different manufacturer (brands) is quite a common task, however, poses a few problems. First, it is not possible at time of purchase of such devices to check whether or not all the devices will interoperate as desired. Second, and even more critical is the fact that manufacturer declare their products \"UPnP\" certified, even if not the complete function set specified mandatory is implemented. Third, it is also not possible to find or identify devices implementing a certain required function effectively. In this work we present our initiative toward a central database of UPnP A/V devices, allowing interested persons to assess the function coverage (i. e., grade of implementation) of a certain device according to the UPnP A/V standard. By providing a client-side device scanner coupled with a server-side repository -- both available on the Internet -- any person can contribute to the project by submitting information from UPnP devices in his/her local network and can browse the central database for device specific characteristics. Available UPnP A/V information includes implementation details of Media Server, Media Renderer, and simple players, as well as information about the level of function coverage of a certain device or service class. This information can be used by developers or end users to select devices matching exactly their requirements or to exclude devices lacking implementation of a necessary function.","PeriodicalId":101923,"journal":{"name":"2011 Frontiers of Information Technology","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123067894","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
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