2013 International Conference on Recent Trends in Information Technology (ICRTIT)最新文献_第9页

Slack time scheduling for managing database transactions in mobile ad-hoc networks 在移动自组织网络中管理数据库事务的松弛时间调度

2013 International Conference on Recent Trends in Information Technology (ICRTIT) Pub Date : 2013-07-25 DOI: 10.1109/ICRTIT.2013.6844239

B. Diwan, M. Sumalatha

引用次数: 0

Information extraction and unfilled-form structure retrieval from filled-up forms 从已填写的表单中提取信息和检索未填写的表单结构

2013 International Conference on Recent Trends in Information Technology (ICRTIT) Pub Date : 2013-07-25 DOI: 10.1109/ICRTIT.2013.6844219

S. Deivalakshmi, Rajasekharreddy Poreddy, P. Palanisamy, Souvik Malakar

引用次数: 1

Path stream group level encoding: Efficient wireless XML streaming 路径流组级编码:高效的无线XML流

2013 International Conference on Recent Trends in Information Technology (ICRTIT) Pub Date : 2013-07-25 DOI: 10.1109/ICRTIT.2013.6844267

P. Prabhavathy, S. Bose

{"title":"Path stream group level encoding: Efficient wireless XML streaming","authors":"P. Prabhavathy, S. Bose","doi":"10.1109/ICRTIT.2013.6844267","DOIUrl":"https://doi.org/10.1109/ICRTIT.2013.6844267","url":null,"abstract":"In this paper, we propose an efficient encoding for XML information dissemination scheme in mobile computing where conserving power and time is a critical task. We define a novel structure called Path Stream Group Level (PSGL) node for streaming XML data and selective download of XML document. A XML document may contain many elements with same name. But each element having same name with different XML tree path information can have various meaning in XML document. Therefore, our encoding scheme uses Location Path information of XML document to uniquely identify a node and groups its elements having same name and location path into PSGL node. Each PSGL node structure includes Level Number, Node Name, Location Path, Child Index, Sibling Index, Attribute Value List, Text Value List, Select Bit String (SBS) coding and SBS count. Level number helps in tuning into particular level of XML document tree where the result node of query or first predicate condition resides in Xpath expression for selective download of XML document. The indices and Value Lists helps in an efficient XML query processing. Thus PSGL encoding scheme exploits the XML document object model in terms of depth and level order tree traversals for XML parsing and streaming. Simple path query and twig pattern queries can be processed efficiently due to parent-child and siblings relationship coded in SBS coding.","PeriodicalId":113531,"journal":{"name":"2013 International Conference on Recent Trends in Information Technology (ICRTIT)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128509381","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

An interdisciplinary approach to the design, development and deployment of person-centered accessible technologies 设计、开发和部署以人为本的无障碍技术的跨学科方法

2013 International Conference on Recent Trends in Information Technology (ICRTIT) Pub Date : 2013-07-25 DOI: 10.1109/ICRTIT.2013.6844294

S. Panchanathan, T. McDaniel, V. Balasubramanian

{"title":"An interdisciplinary approach to the design, development and deployment of person-centered accessible technologies","authors":"S. Panchanathan, T. McDaniel, V. Balasubramanian","doi":"10.1109/ICRTIT.2013.6844294","DOIUrl":"https://doi.org/10.1109/ICRTIT.2013.6844294","url":null,"abstract":"Over the last few years, significant strides have been made toward enhancing the naturalness and acceptance of multimedia systems through the principles of Human-Centered Multimedia Computing (HCMC), a field of computational science where user needs, expectations, adoption and adaptation preferences guide interface and system design. While progress has greatly benefited the broader “able” population, those with disabilities are largely ignored, and must often force-fit available solutions or wait for add-on features that only partially solve usability issues. Given the diversity of disabilities, a person-centered rather than human-centered approach is needed. Previously, we proposed enriching the design philosophy of HCMC by considering perspectives from disabilities. More recently, we have proposed Person-Centered Multimedia Computing (PCMC) to emphasize individual user needs and co-adaptive systems. In this paper, we present an interdisciplinary approach to realizing person-centered accessible technologies. The basis of the approach is three complementary research thrusts: human-centered design, socio-personal dynamics, and socio-technological practices. These research thrusts are interconnected through three perspectives of disability research: technology, adaptation and policy. The results of several case studies will be presented to highlight how this approach has aided the development of person-centered accessible technologies from early conceptualization to commercialization.","PeriodicalId":113531,"journal":{"name":"2013 International Conference on Recent Trends in Information Technology (ICRTIT)","volume":"164 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123264766","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

PAPR improvement in opportunistic communication systems: A novel approach 机会性通信系统中PAPR的改进:一种新方法

2013 International Conference on Recent Trends in Information Technology (ICRTIT) Pub Date : 2013-07-25 DOI: 10.1109/ICRTIT.2013.6844246

S. Eswaran, Jyotsna L. Bapat

{"title":"PAPR improvement in opportunistic communication systems: A novel approach","authors":"S. Eswaran, Jyotsna L. Bapat","doi":"10.1109/ICRTIT.2013.6844246","DOIUrl":"https://doi.org/10.1109/ICRTIT.2013.6844246","url":null,"abstract":"Opportunistic usage of licensed frequency bands has been proposed as a solution to spectral crowding problem by using Cognitive Radio (CR) systems. Multicarrier techniques based on OFDMA (Orthogonal Frequency Division Multiple Access) have been the technique of choice for sharing the spectrum due to their flexibility in deactivating the sub-carriers to avoid interference to primary licensed users. However, OFDMA based techniques are associated with certain issues such as high PAPR, which is especially harmful at the user equipment (UE) end. Single Carrier FDMA (SC-FDMA) for uplink has been proposed as one of the solutions for reducing the PAPR (Peak-to-Average-Power-Ratio) at UE end. SC-FDMA may utilize localized mapping or the distributed mapping techniques to allocate the sub-carriers to the different users. In spectrum pooling, the availability of free sub-carriers depends upon spectral activity of the licensed user which is unpredictable and considered random. As a result, available carriers may be allocated to the rented or opportunistic users based on availability using a Non Contiguous OFDM (NC-OFDMA) scheme. NC-OFDMA makes efficient use of the spectrum at the cost of high PAPR at the User Equipment (UE). To be able for PAPR reduction using SC-FDMA requires certain structure to the available subcarriers; i.e. consecutive or equi-spaced, which may not be true inall cases. In this paper, we propose a spectrum allocation algorithm that takes into account system requirements for resource efficiency and proposes a DFT of appropriate size for spectrum spreading such that localized SC-FDMA may be implemented at the UE to reduce PAPR. Proposed algorithm seeks to balance the requirements of low PAPR and required spectral efficiency and provides a solution that satisfies the requirements.","PeriodicalId":113531,"journal":{"name":"2013 International Conference on Recent Trends in Information Technology (ICRTIT)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115456238","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

Performance analysis of multiclass object detection using SVM classifier 基于SVM分类器的多类目标检测性能分析

2013 International Conference on Recent Trends in Information Technology (ICRTIT) Pub Date : 2013-07-25 DOI: 10.1109/ICRTIT.2013.6844198

A. Fathima, V. Vaidehi, Nisha Rastogi, R. Kumar, S. Sivasubramaniam

{"title":"Performance analysis of multiclass object detection using SVM classifier","authors":"A. Fathima, V. Vaidehi, Nisha Rastogi, R. Kumar, S. Sivasubramaniam","doi":"10.1109/ICRTIT.2013.6844198","DOIUrl":"https://doi.org/10.1109/ICRTIT.2013.6844198","url":null,"abstract":"Multiclass object detection is considered for detecting different object classes in a cluttered environment. Traditional approaches require applying a battery of different classifiers to the image with a large number of complex features used to detect the objects. Specialized detectors usually excel in performance, while the class-specific features increase detection accuracy, but at the expense of complexity. In this paper, an efficient method of human face and car detection using cascaded structure of independent object classifiers is proposed. The approach is based on background elimination using statistical features, followed by foreground detection using Principal component analysis (PCA) and Histogram of Gradients (HoG) with SVM classifier. For detecting the object of interest from the image, the system primarily filters the potential object area by analyzing the local histogram distribution. After background elimination, the trained classifier detects foreground using higher order parameters like PCA for human faces and HOG for cars. In this paper, the kernel function for SVM classifier, suitable for individual object classifier is analysed based upon ROC-AUC parameter. The proposed system is implemented in Matlab. The system is validated with performance metrics like precision, recall and accuracy.","PeriodicalId":113531,"journal":{"name":"2013 International Conference on Recent Trends in Information Technology (ICRTIT)","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122211315","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: 6

GA based dynamic spectrum allocation in UHF-ISM band of 902–928MHz with RADAR as primary user for cognitive radio 基于遗传算法的902-928MHz UHF-ISM波段认知无线电动态频谱分配

2013 International Conference on Recent Trends in Information Technology (ICRTIT) Pub Date : 2013-07-25 DOI: 10.1109/ICRTIT.2013.6844202

G. Kalaichelvi, Dhananjay Kumar, Aarti Mandal, A. Karthikeyan

引用次数: 5

Analysis of cross-gender adaptation using MAP and MLLR in speech recognition systems 基于MAP和MLLR的语音识别系统跨性别自适应分析

2013 International Conference on Recent Trends in Information Technology (ICRTIT) Pub Date : 2013-07-25 DOI: 10.1109/ICRTIT.2013.6844235

S. Mahiba, S. Christina, P. Vijayalakshmi, T. Nagarajan

{"title":"Analysis of cross-gender adaptation using MAP and MLLR in speech recognition systems","authors":"S. Mahiba, S. Christina, P. Vijayalakshmi, T. Nagarajan","doi":"10.1109/ICRTIT.2013.6844235","DOIUrl":"https://doi.org/10.1109/ICRTIT.2013.6844235","url":null,"abstract":"Speech recognition system developed with context-dependent phonemes captures the co-articulation effect and it gives a better performance compared to systems developed with context-independent units. However the performance of the system is also dependent on the speaker. Speaker dependence of the recognition system arises from the speaker-dependent speech features. The variation of the vocal tract length and! shape is the major cause for this inter-speaker variation. Thus the performance of speaker-independent (SI) systems is surpassed by speaker-dependent (SD) systems. It is well established in the literature that the recognition performance of the SI system can be improved to the standards of an SD system by speaker adaptation. The main focus in this paper revolves around the analysis on the amount and ratio of male and female training data for which the cross-gender speaker adaptation gives higher performance. The speaker adaptation cechniques MAP and MLLR are implemented, using the TIMIT speech corpus. It is observed that MLLR adapts the model parameters better than MAP even with 24s of adaptation data. It is also inferred that training the system with both male and female data results in better cross-gender adaptation performance, when compared with the system trained with a either male or female data, primarily because the system parameters differ greatly for male and female speakers. The overall recognition performance of the context-dependent system is improved by 0.55% for MAP adaptation and 2.75% for MLLR adaptation over the unadapted recognition system, for the minimal amount of data.","PeriodicalId":113531,"journal":{"name":"2013 International Conference on Recent Trends in Information Technology (ICRTIT)","volume":"24 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130283856","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

Panoramic view creation using invariant momentsand SURF features 全景视图创建使用不变矩和SURF特征

2013 International Conference on Recent Trends in Information Technology (ICRTIT) Pub Date : 2013-07-25 DOI: 10.1109/ICRTIT.2013.6844233

R. Karthik, A. AnnisFathima, V. Vaidehi

{"title":"Panoramic view creation using invariant momentsand SURF features","authors":"R. Karthik, A. AnnisFathima, V. Vaidehi","doi":"10.1109/ICRTIT.2013.6844233","DOIUrl":"https://doi.org/10.1109/ICRTIT.2013.6844233","url":null,"abstract":"This paper presents an efficient approach for panoramic view creation to enlarge the field of view. Image stitching is used to integrate information from multiple images with overlapping fields of view in order to produce a panoramic view with all the contents fitted into a single frame. The major contribution of the proposed work resides in the preliminary selection of overlapping region using gradient and invariant moments approach. This step plays a vital role as it eliminates the need to extract features from the unnecessary portions of the input image. Once the overlapping regionsare identified, SURF(Speeded Up Robust Features) features are extracted from it. These features are matched for finding the transformation matrix using RANSAC (Random Sample Consensus) algorithm. The mosaic is obtained by warping the images into a single frame. This stitching method is iteratively applied to a series of images to create a complete panoramic view. In order to justify the effectiveness of the proposed work, it is compared against traditional methods in terms of computational complexity for feature extraction.","PeriodicalId":113531,"journal":{"name":"2013 International Conference on Recent Trends in Information Technology (ICRTIT)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130055976","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: 14

Multi-scale wavelet algorithm based noise reduction in ultrasonic images at elevated temperatures 基于多尺度小波算法的高温超声图像降噪

2013 International Conference on Recent Trends in Information Technology (ICRTIT) Pub Date : 2013-07-25 DOI: 10.1109/ICRTIT.2013.6844234

C. F. T. Cenate, B. Rani, B. Venkataraman

{"title":"Multi-scale wavelet algorithm based noise reduction in ultrasonic images at elevated temperatures","authors":"C. F. T. Cenate, B. Rani, B. Venkataraman","doi":"10.1109/ICRTIT.2013.6844234","DOIUrl":"https://doi.org/10.1109/ICRTIT.2013.6844234","url":null,"abstract":"Time-of-Flight Diffraction (TOFD) is an advanced ultrasonic inspection technique best suited for inspection especially inservice wherein the focus is on detection of cracks and linear indications which can propagate during service. The technique is widely used in process industries and also in strategic sector like nuclear. In the case of ISI in nuclear industry, the main difficulties likely to arise during such inspection are the high temperature (during shut down) and the background radiation. With the advent of high temperature probes, this limitation can be overcome. However, a fundamental factor which still is a cause for concern is the degradation of the signal to noise ratio due to thermal noise. Experiments conducted by the authors reveal that the contrast of acquired TOFD Images reduces progressively with increasing temperatures. As the temperature increases beyond 373K, the noise makes interpretation of images difficult and thus possibility of linear defects getting missed out arise. It is well known that the wavelets can be effectively employed for denoising. Wavelets have also been applied in general for denoising UT signals. However, its application for UT signals from stainless steel and which is at high temperature has not been attempted so far. In this paper, we explore the innovative application of wavelet thresholding for denoising applications due to its greater flexibility. Analysis of the restored image indicate that the Symlets family with the suitable thresholding has Higher Peak Signal to Noise Ratio(PSNR) value than the Coiflets wavelet family.","PeriodicalId":113531,"journal":{"name":"2013 International Conference on Recent Trends in Information Technology (ICRTIT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129972242","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