检索结果-南通市图书馆

Source Code Prioritization Using Forward Slicing for Exposing Critical Elements in a Program

在线全文

学校读者我要写书评

暂无评论

Journal of Computer Science & Technology 2011年第2期26卷 314-327页

作者： Mitrabinda Ray Kanhaiya lal Kumawat durga prasad Mohapatra Department of Computer Science and Engineering National Institute of Technology

Even after thorough testing, a few bugs still remain in a program with moderate complexity. These residual bugs are randomly distributed throughout the code. We have noticed that bugs in some parts of a program cause frequent and severe failures compared to those in other parts. Then, it is necessary to take a decision about what to test more and what to test less within the testing budget. It is possible to prioritize the methods and classes of an object-oriented program according to their potential to cause failures. For this, we propose a program metric called influence metric to find the influence of a program element on the source code. First, we represent the source code into an intermediate graph called extended system dependence graph. Then, forward slicing is applied on a node of the graph to get the influence of that node. The influence metric for a method m in a program shows the number of statements of the program which directly or indirectly use the result produced by method m. We compute the influence metric for a class c based on the influence metric of all its methods. As influence metric is computed statically, it does not show the expected behavior of a class at run time. It is already known that faults in highly executed parts tend to more failures. Therefore, we have considered operational profile to find the average execution time of a class in a system. Then, classes are prioritized in the source code based on influence metric and average execution time. The priority of an element indicates the potential of the element to cause failures. Once all program elements have been prioritized, the testing effort can be apportioned so that the elements causing frequent failures will be tested thoroughly. We have conducted experiments for two well-known case studies -- Library Management System and Trading Automation System -- and successfully identified critical elements in the source code of each case study. We have also conducted experiments to compar

关键词： program slice extended system dependence graph influence of a class test priority

Attention boosted autoencoder for building energy anomaly detection

在线全文

学校读者我要写书评

暂无评论

Energy and AI 2023年第4期14卷 479-489页

作者： durga prasad Pydi S.Advaith Department of Mechanical Engineering Indian Institute of Technology MadrasChennai600036India

Significant energy savings can be realised from buildings if deviations from the usual operating conditions are detected early,and appropriate measures are *** anomaly detection techniques automate identifying such instances by leveraging the high dimensional data collected from the installed smart *** allow for dimensionality reduction and also model the underlying data ***,these models treat features as independent *** contrast,the current work investigates an attention mechanism with an autoencoder to include the correlations among the *** value addition from the attention mechanism is demonstrated by comparing the model’s reconstruction ability with an ANN-based autoencoder on synthetic *** study identifies that adding an attention layer enables the encoder–decoder architecture to be robust to outliers in training data,thereby reducing the preprocessing ***,the model is tested on a real-world dataset,and the attention maps generated from the model are used to interpret the correlations among the features and across the time dimension,thereby establishing a human-interpretable way to understand the reconstruction from the model.

关键词： Artificial intelligence UN Sustainable Development Goals Interpretable model Multivariate time series HVAC

Dynamics of additional food provided predator-prey system with habitat fragmentation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Biomathematics 2023年第4期16卷 45-80页

作者： K.durga prasad B.S.R.V.prasad Department of Mathematical and Computational Sciences Sri Sathya Sai University for Human Ercellence Kamalapur KalaburagiKarnataka 585313India Department of Mathematics School of Advanced Sciences VIT(Deemed to be University)Vellore Tamilnadu 632014India

Due to human-caused deforestation,global warming,and other environmental factors,habitat fragmentation became *** fragmentation has a variety of detrimental repercussions for many species as well as humans,especially in the agricultural *** causes insect outbreaks,the expansion of alien species,and disrupts biological management by rendering the habitat unsuitable for natural enemies in *** natural enemies with additional food is one method to improve the ecosystem and support *** this study,we assumed that the ecosystem is separated into two patches and that predators can easily migrate from one patch to the next,while prey stays inside its patch's *** looked at the impact of offering more food to predators in a patchy environment using dynamical systems *** permanence,stability,and various bifurcations that occur in the system are studied using a rigorous mathematical *** study looks at how predator's access to other food sources affects pest *** adjusting the provided food's characteristic qualities,such as(nutritional)quality and quantity,one can limit and manage the pest in one or both patches,as well as eliminate predators from the *** research reveals that providing predators with additional food(of specified quality and quantity)can help in controlling chaotic behavior in the *** findings of the study are supported by numerical simulations.

关键词： Pest predator additional food habitat fragmentation Hopf bifurcation chaos biological control

Performance enhancement of IMC-PID controller design for stable and unstable second-order time delay processes

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Central South University 2020年第1期27卷 88-100页

作者： Munna KUMAR durga prasad Ram Sharan SINGH Department of Chemical Engineering Indian Institute of Technology (BHU)

An IMC-PID controller was proposed for unstable second-order time delay system which shows the characteristics of inverse response(RHP zero). A plot of Ms versus λ was suggested to calculate the suitable tuning parameter λ, which provides a trade-off between performance and robustness. Six different forms of process models were selected from literature to show the applicability of the present method. Performance of controller was calculated by ITAE and total variation TV and compared with recently published tuning rules. Undesirable overshoot was removed by using a set-point weighting parameter. Robustness was tested by introducing a perturbation into the various model parameters and closed-loop results show that the designed controller is robust in the case of model uncertainty. The proposed method shows an overall better closed-loop response as compared to other recently reported methods.

关键词： maximum sensitivity internal model control unstable process set-point weighting integral of time-weighted absolute error

在线全文

学校读者我要写书评

暂无评论

基于FPDE的红外与可见光图像融合算法

自动化学报 2020年第4期46卷 796-804页

作者：高雪琴刘刚肖刚 BAVIRISETTI durga prasad 史凯磊上海电力学院自动化工程学院上海200090 上海交通大学航空航天学院上海200240

针对传统红外与可见光图像融合算法中存在的细节信息不够丰富,边缘信息保留不够充分等问题,文中提出了一种基于四阶偏微分方程(Fourth-order partial differential equation, FPDE)的改进的图像融合算法.算法首先采用FPDE将已配准的红... 详细信息

针对传统红外与可见光图像融合算法中存在的细节信息不够丰富,边缘信息保留不够充分等问题,文中提出了一种基于四阶偏微分方程(Fourth-order partial differential equation, FPDE)的改进的图像融合算法.算法首先采用FPDE将已配准的红外与可见光图像进行分解,得到高频分量和低频分量;然后,对高频分量采用基于主成分分析(Principal component analysis, PCA)的融合规则来得到细节图像,对低频分量采用基于期望值最大(Expectation maximization, EM)的融合规则来得到近似图像;最后,通过组合最终的高频分量和低频分量来重构得到最终的融合结果.实验是建立在标准的融合数据集上进行的,并与传统的和最近的融合方法进行比较,结果证明所提方法得到的融合图像比现有的融合方法能有效地综合红外与可见光图像中的重要信息,有更好的视觉效果.

关键词：图像融合四阶偏微分方程期望值最大主成分分析红外与可见光图像

Modulation of cell death pathways in cancer stem cells: Targeting histone demethylases

在线全文

学校读者我要写书评

暂无评论

Advances in Bioscience and Biotechnology 2012年第6期3卷 720-730页

作者： Ravi Thakur durga prasad Mishra Cell Death Research Laboratory Division of endocrinology Central Drug Research Institute Lucknow India

Cancer stem cells (CSCs) are tumor initiating cells within the tumor mass;that play a critical role in cancer pathogenesis. CSCs regulate cancer cell survival, metastatic potential, resistance to conventional radio-chemotherapy, disease relapse and poor prognosis. Recent studies have established that the drug resistant cancers and cancer cell lines possess high stem cell like traits compared to their drug sensitive counterparts. Histone demethylases are recently been linked to drug induced reversible tolerant state in cancers. Lysine histone demethylases are enzymes those demethylate lysines in histones and can act as transcriptional repressors or activators. Apart from histones other cellular proteins like E2F1, Rb, STAT3 and p53 are also regulated by methylation and demethylation cycles. In cancer cells these enzymes regulate cell survival, migration, invasion, and proliferation. This review summarizes the current progress of research on the role of histone demethylases in supporting drug tolerant cancer stem cell state and their potential as a drug target.

关键词： Cancer Stem Cells Histone Lysine Demethylases Cell Death LSD1 KDM5A

Design and Development of E-Governance Model for Service Quality Enhancement

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Data Analysis and Information Processing 2015年第3期3卷 55-62页

作者： Tulu Tilahun durga prasad Sharma Department of Computer Science & IT Arba Minch Institute of Technology Arba Minch Ethiopia AMiT AMU MOEFDRE under UNDP Ethiopia

Governance is a process of establishing policies or laws and continuously monitoring their implementation in the public. Citizens are the main stakeholders in this process. To make the governance process cost effective, easy and convenient to the citizens, information and communication technologies (ICTs) are playing a vital role. Using ICTs in governance domain can be referred as e-governance. It helps citizen to participate not only in policy making but also in service quality improvements and getting government services over network. Web technology is one of the major technologies that have been used in e-governance as a major contributor. Before invention of web, citizens used to write their opinions and send to concerned body via post mail or local suggestion box for improvements of services. After the invention of the web, it became possible to post or send the opinions/comments over organization’s web sites or portals. As the number of comments increases over the web, it is very difficult to have relevant information for furthering the decision making processes. In these study, text processing and data mining techniques have been used. The prototype system classifies citizen’s opinions in one of six service categories with the precision of 87.3% and recall of 85.8%. Further, the system determines opinions as appreciation with the precision of 100% for both depression and appreciation, and average recall of 90.85% for both depression and appreciation. The results obtained from the prototype system indicate that the techniques that have been applied are promising for real world application in e-governance.

关键词： E-Governance Depression Appreciation Neutral Information and Communications Technology

Breeding Resilience:Exploring Lodging Resistance Mechanisms in Rice

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Rice science 2024年第6期31卷 659-672页

作者： durga prasad MULLANGIE Kalaimagal THIYAGARAJAN Manonmani SWAMINATHAN Jagadeesan RAMALINGAM Sritharan NATARAJAN Senthilkumar GOVINDAN Department of Genetics and Plant Breeding Centre for Plant Breeding and GeneticsTamil Nadu Agricultural UniversityCoimbatore 641003India Department of Rice Centre for Plant Breeding and GeneticsTamil Nadu Agricultural UniversityCoimbatore 641003India Centre for Molecular Biology and Biotechnology Tamil Nadu Agricultural UniversityCoimbatore 641003India

Lodging is more than just plants falling over;it incurs significant economic losses for farmers leading to a decrease in both yield and quality of the final *** management practices,such as dense sowing,excessive nitrogen fertilizer applications,inappropriate sowing dates,and upland rice cultivation,exacerbate the risk of lodging in *** breeders have developed high-yielding rice varieties utilizing the sd1 gene,relying solely on this gene is insufficient to enhance lodging *** the traits that contribute to lodging resistance is *** factors include biochemical,anatomical,and morphological traits,such as the levels of lignin,cellulose,hemicellulose,silicon,and potassium,along with the number and area of vascular bundles and the thickness,diameter,and length of the ***,markers associated with lodging-related genes,like SCM2,SCM3,SCM4,and prl4,can be utilized effectively in marker-assisted backcrossing to develop rice varieties with desirable culm *** literature review aims to aid rice breeders in addressing the issue of lodging by examining traits that influence lodging resistance,developing phenotyping strategies for these traits,identifying suitable instrumentation,exploring methods for screening lodging-resistant plants,understanding the mathematical relationships involved,and considering molecular breeding aspects for pyramiding genes related to lodging.

关键词： rice lodging resistance breaking and bending type lodging culm strength SCM gene prl gene lignin cellulose

Cloud-Enabled E-Governance Framework for Citizen Centric Services

在线全文

学校读者我要写书评

暂无评论

Journal of Computer and Communications 2020年第7期8卷 63-78页

作者： Jara Muda Sisay Tumsa Amin Tuni durga prasad Sharma Bule Hora University Bule Hora Ethiopia Arba Minch University Arba Minch Ethiopia AMUIT MOEFDRE under UNDP & Research Adviser MAISM-RTU Kota India

In the modern arena, the Information and Communication Technologies (ICTs) have been playing a vital role in every walks of our day to day life. In order to enhance the ICT capacity and align with the global technology transformations, the developing countries have started introducing the computerization and automation processes at different levels of the governments. The several research studies revealed that the existing legacy of governance system and their services in current state have several issues and challenges in terms of timeliness, cost of services, delay in service delivery, time-bound availability of services (24/7/365), inefficiency services, ease of service and discomforts, poor service collaboration, absence of responsiveness, and limited security of sensitive information/documents. A significant question is still unanswered that how to bring the Citizens and Government bodies closer for alleviating the aforementioned issues and challenges of existing government system services. This research paper aims to investigate the issues and challenges in the current status of Governance and partial E-Governance systems which encompass the computerization or automation process. The research designs a cloud framework for effective delivery of citizen centric services in general and Ethiopia as a specific case study. After rigorous analysis of prior research efforts, along with primary survey and interview, it was clearly observed that cloud computing can be an alternative instrumental for significant transformation of governmental service delivery. The research paper used a mix of exploratory and constructive research design and methodology with qualitative & quantitative data analysis approach. Finally, a Cloud Based E-Governance (CBEG) Framework is designed for the delivery of Ethiopian Citizen Centric Services. The validation, evaluation and acceptance test of the framework proves that the revealed knowledge can provide a significant transformation towards

关键词： E-Governance Framework Cloud Computing Citizen Centric Hybrid Cloud