40 research outputs found
Impact of PDS Based kNN Classifiers on Kyoto Dataset
No full textThis article compares the performance of different Partial Distance Search-based (PDS) kNN classifiers on a benchmark Kyoto 2006+ dataset for Network Intrusion Detection Systems (NIDS). These PDS classifiers are named based on features indexing. They are: i) Simple PDS kNN, the features are not indexed (SPDS), ii) Variance indexing based kNN (VIPDS), the features are indexed by the variance of the features, and iii) Correlation coefficient indexing-based kNN (CIPDS), the features are indexed by the correlation coefficient of the features with a class label. For comparative study between these classifiers, the computational time and accuracy are considered performance measures. After the experimental study, it is observed that the CIPDS gives better performance in terms of computational time whereas VIPDS shows better accuracy, but not much significant difference when compared with CIPDS. The study suggests to adopt CIPDS when class labels were available without any ambiguity, otherwise it suggested the adoption of VIPDS
Sex trafficking of girls and women : Evidence from Anantapur district, Andhra Pradesh
No full textA crucial gap in the trafficking literature from India is the dearth of primary data and micro studies that could be used for vulnerability mapping of the source areas and addressing the identified risk factors. The present paper is a small attempt to contribute to plugging the gap in the context of Andhra Pradesh, identified as a hot spot in the trafficking literature. This paper is based on case studies of 78 women who had been trafficked from their places of origin in Anantapur district in Andhra Pradesh to metropolitan cities across India and who have since returned to their homes. The paper attempted to identify the individual and family circumstances that contribute to the causes of trafficking, to highlight in particular the gendered vulnerabilities that set these women up for trafficking, and to capture the process of the trafficking experience. The findings of the study are located in the dynamic interplay of the social structural context and specificities of the district that contribute to causes of trafficking and the individual circumstances and agency of the women. The case studies reported in this paper are a pointer to the compelling urgency of interventions that will go beyond the forced / voluntary divide in trafficking and sex work.Andhra Pradesh, India, trafficking
Effective priority-based resource allocation for proactive auto-scaling framework in workload prediction using hybrid tree-enhanced vector machine model
No full textAbstract Cloud computing (CC) is a paradigm offering on-demand access to software, platforms, and infrastructure as a service (IaaS). IaaS enables cloud providers to supply resources like Virtual Machines (VMs) and storage, making resource management critical for minimizing costs and maximizing profits. To optimize resource allocation, this paper proposes a priority-based auto-scaling framework using machine learning (ML) for workload prediction. The framework has four phases: monitoring, analysis, planning, and execution. In the monitoring phase, data is collected to assess cloud resources. The workload for each VM is classified using a hybrid tree-enhanced vector machine to determine resource utilization. The planning phase utilizes a Hybrid Vultures and Waterwheel Plant Optimization (H-VWPO) model to decide on auto-scaling policies. Finally, in the execution phase, cloud customers’ requests are distributed to VMs based on priority, optimizing VM utilization and response times. Implemented on a PYTHON platform, the proposed model achieves superior performance, with accuracy improving from 98.68% for 15 VMs to 99.12% for 50 VMs
Henosepilachna circellaris
No full textHenosepilachna circellaris (Weise) Epilachna circellaris Weise, 1908: 216 (BMNH). Henosepilachna circellaris: Jadwiszczak & Wegrzynowicz, 2003: 141. Jadwiszczak & Wegrzynowicz (2003) listed H. circellaris as distributed in India in the world catalogue of Epilachninae, though Weise (1908) listed ‘Tharrawaddy’ (now in Myanmar) as its type locality. In Poorani’s (2004) updated online checklist of the Indian Subcontinent fauna, the author of H. circellaris was wrongly cited as Korschefsky and it was also wrongly mentioned as present in India (Karnataka). Distribution: Myanmar (Tharrawaddy).Published as part of Poorani, J., Booth, R. G., Gracy, R. Gandhi, Anuradha, C., Thanigairaj, R. & Swathi, R. S., 2021, Immature stages, host plants and natural enemies of Henosepilachna implicata (Mulsant) (Coleoptera: Coccinellidae) with DNA sequence data and a new synonym and notes on some Indian species of Epilachnini, pp. 533-546 in Zootaxa 4970 (3) on pages 543-544, DOI: 10.11646/zootaxa.4970.3.5, http://zenodo.org/record/476683
Unveiling the ChatGPT Educational Revolution: Assessing the Dynamic Impact on Students and Educators
No full textDue to shifting social demands and technology breakthroughs, the higher education environment is changing quickly. Despite initiatives to make education accessible to everyone, accessibility is still a major problem, especially in light of the digital divide. This study investigates how ChatGPT, an AI-powered chatbot, can revolutionize higher education by tackling important problems including resource efficiency, personalized learning, and accessibility. This study intends to improve learning outcomes for both students and educators by comprehending how instructors and students incorporate ChatGPT into instructional methods. Students and instructors were given both quantitative and qualitative questionnaires as part of a mixed-methods approach, in order to gather data on the usage of ChatGPT for different academic tasks, such as lesson preparation, grading, and student help. Results showed that most people believe ChatGPT to be a useful tool that improves productivity, saves time, and helps with grasping difficult subjects. Questions were raised concerning the veracity of the data that ChatGPT offered and the necessity of organized training. ChatGPT and other AI technologies have the potential to enhance educational results by enabling personalized instruction and offering on-demand learning help. In addition to the continuing discussion on the use of cutting-edge technology in higher education, the findings provide insightful information for educational institutions seeking to use AI to improve teaching and learning. Received: 16 September 2024 | Revised: 9 April 2025 | Accepted: 15 July 2025 Conflicts of Interest The authors declare that they have no conflicts of interest to this work. Data Availability Statement Data are available from the corresponding author upon reasonable request. Author Contribution Statement Swathi Ganesan: Conceptualization, Methodology, Data curation, Writing – Original draft, Writing – review and editing, Visualization, Project administration. Lakmali Karunarathne: Conceptualization, Methodology, Formal analysis, Data curation, Writing – original draft, Writing – review and editing, Visualization, Project administration. Ghanshyam Mahota: Methodology, Formal analysis, Writing – original draft. Sangita Pokhrel: Conceptualization, Writing – review and editing, Visualization
Matching in power graphs of finite groups
No full textFunding: The author Swathi V V acknowledges the support of Council of Scientific and Industrial Research, India (CSIR) (Grant No-09/874(0029)/2018-EMR-I), and DST, Government of India, ‘FIST’ (No.SR/FST /MS-I/2019/40).The power graph P(G) of a finite group G is the undirected simple graph with vertex set G, where two elements are adjacent if one is a power of the other. In this paper, the matching numbers of power graphs of finite groups are investigated. We give upper and lower bounds, and conditions for the power graph of a group to possess a perfect matching. We give a formula for the matching number for any finite nilpotent group. In addition, using some elementary number theory, we show that the matching number of the enhanced power graph Pe(G) of G (in which two elements are adjacent if both are powers of a common element) is equal to that of the power graph of G.Peer reviewe
Characterization of the flow-field in circular subsonic impinging jets: Investigation of surface pressure fluctuations and far-field noise emissions through pressure sensor measurements
No full textImpinging jets are relevant ow configurations in many technological developments. For example, on some short take-off and landing aircraft the high speed exhaust from the jet engine is deflected by direct impingement on the aps to create extra lift during take-off. Fatigue due to excessive dynamic loading on the aps and high levels of noise radiation are among the problems encountered in such designs. Additionally, such flow-structure interaction is a good model for cooling of turbine blades, annealing of plastic and metal sheets, deicing of aircraft systems etc.. Jets are easy to simulate and contain all the constituents necessary for the study of shear flows. The shear-layer instability at the nozzle edge develops into axisymmetric toroidal vortices which magnifies in size and strength downstream of the nozzle. The interaction of these vortices with the solid structures induces pressure fluctuations that manifests in the form of noise in the far-field region. Hence, it is also a benchmark case for studying vortex-structure interaction noise.Aerospace Engineering | Aerodynamics and Wind Energ
Screening of pediocin PA-1 producing lactic acid bacteria and their characterization by RAPD
No full textThis Dissertation / Report is the outcome of investigation carried out by the creator(s) / author(s) at the department/division of Central Food Technological Research Institute (CFTRI), Mysore mentioned below in this page
Studies On the Neutraceuticals of Minor Compounds of Extracted Oil From Roasted Wheat Germ and Wheat Bran.
No full textThis Dissertation / Report is the outcome of investigation carried out by the creator(s) / author(s) at the department/division of Central Food Technological Research Institute (CFTRI), Mysore mentioned below in this page
Epigenetic silencing of ID4 in prostate cancer: mechanistic insight, 2015
No full textInhibitor of DNA binding/differentiation protein 4 (ID4) is a dominant negative regulator of basic helix loop helix (bHLH) family of transcription factors. ID4 shares the homology of HLH domain with other ID proteins (ID1, ID2, and ID3) and lack the basic DNA binding region. Evidence suggested that unlike ID1, ID2 and ID3, ID4 acts as a tumor suppressor in prostate cancer by attenuating cell proliferation and promoting apoptosis. Consistent with these observations ID4 is epigenetically silenced in DU145 prostate cancer cell line. In this study we investigated whether ID4 is also epigenetically silenced in prostate cancer. We also examined association between ID4 promoter hyper-methylation and its expression in prostate cancer cell lines. ID4 protein expression was analyzed in human prostate adenocarcinoma samples by Immunohistochemistry (IHC). ID4 promoter methylation pattern on prostate cancer cell lines was examined by methylation specific PCR. In addition, we performed methylation specific PCR on the human prostate tissues and genomic DNA to correlate cell line studies with clinical studies. IHC demonstrated decreased ID4 protein expression in human prostate tissue samples, whereas higher nuclear ID4 expression was found in normal prostate tissues. ID4 methylation specific PCR (MSP) on prostate cancer cell lines, showed ID4 methylation in DU145, but not in LNCaP and C33 cells. C81 and PC3 cells showed partial methylation. Increased ID4 methylation in C81 as compared to LNCaP suggests its epigenetic silencing as cells acquire androgen independence. Tumors with ID4 promoter hyper-methylation showed distinct loss of ID4 expression. However, the underlying mechanism involved in epigenetic silencing of ID4 is currently unknown. We hypothesized that ID4 promoter methylation is initiated by an EZH2 dependent tri-methylation of histone 3 at lysine 27 (H3K27Me3). ID4 expressing (LNCaP) and non-expressing (DU145 and C81) prostate cancer cell lines were used to investigate EZH2, H3K27Me3 and DNMT1 enrichment on ID4 promoter by Chromatin immuno-precipitation (ChIP). Increased enrichment of EZH2, H3K27Me3 and DNMT1 in DU145 and C81 cell lines was compared to ID4 expressing LNCaP cell line. Knockdown of EZH2 in DU145 cell line led to re-expression of ID4 and decrease in enrichment of EZH2, H3K27Me3 and DNMT1 demonstrating that ID4 is regulated in an EZH2 dependent manner. ChIP on prostate cancer tissue specimens and cell lines suggested EZH2 occupancy and H3K27Me3 marks on the ID4 promoter. Collectively, our data indicate a PRC2 dependent mechanism in ID4 promoter silencing in prostate cancer through recruitment of EZH2 and a corresponding increase in H3K27Me3. Increased EZH2, but decreased ID4 expression in prostate cancer strongly supports this model. KEY TERMS: ID4, Epigenetic silencing, Prostate Cancer, Biology, Cancer Biology, Cell Biology, Genetics, Other Cell and Developmental Biolog
