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Search Results: 1 - 10 of 185 matches for " Gopinath Chennupati "
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eAnt-Miner : An Ensemble Ant-Miner to Improve the ACO Classification
Gopinath Chennupati
Computer Science , 2014,
Abstract: Ant Colony Optimization (ACO) has been applied in supervised learning in order to induce classification rules as well as decision trees, named Ant-Miners. Although these are competitive classifiers, the stability of these classifiers is an important concern that owes to their stochastic nature. In this paper, to address this issue, an acclaimed machine learning technique named, ensemble of classifiers is applied, where an ACO classifier is used as a base classifier to prepare the ensemble. The main trade-off is, the predictions in the new approach are determined by discovering a group of models as opposed to the single model classification. In essence, we prepare multiple models from the randomly replaced samples of training data from which, a unique model is prepared by aggregating the models to test the unseen data points. The main objective of this new approach is to increase the stability of the Ant-Miner results there by improving the performance of ACO classification. We found that the ensemble Ant-Miners significantly improved the stability by reducing the classification error on unseen data.
Textbook of Dermatology
Gopinath T
Indian Journal of Dermatology, Venereology and Leprology , 2003,
Oral hygiene practices and habits among dental professionals in Chennai
Gopinath V
Indian Journal of Dental Research , 2010,
Abstract: Aims and objectives : The present study was carried out to assess the oral hygiene practices and habits among practicing general dentists. Materials and Methods : The study was carried out in four dental schools with the help of a self administered questionnaire. The questionnaire covered dentists′ oral self care, smoking habits, professional reading and oral health concepts. A total of 700 dentists responded, of which 457 were males. Recommended oral self care (ROSC) included tooth brushing one per day, eating sugary snacks daily or rarely and regularly using fluoride tooth paste. Results : The data obtained was then subjected to statistical analyses and evaluated using chi-square tests and logistic regressions.It was found that 55.9% of all respondents brushed twice a day, 59.4% consumed sugar containing snacks less than once daily and 55.1% of them used fluoride containing paste regularly while brushing. 81.1% of the 700 dentists never used tobacco products. In all, 19.6% 0f the practicing general dentists followed recommended oral self care. Conclusion : From the present study, it can be concluded that only 19.6% of south Indian dentists follow recommended oral self care and hence awareness programs and continuous dental education programs among dentists is essential to improve the present scenario and to increase the number of dental professionals following ROSC.
Blood transfusion in cardiac surgery
Gopinath Ramachandran
Annals of Cardiac Anaesthesia , 2008,
Law demands "Care" - not "Cure"
Shenoy Gopinath
Journal of Gynecological Endoscopy and Surgery , 2009,
Abstract: In today′s medicolegal scenario specially related to endoscopic surgery, patient expects a miraculous result or a definite cure.However the author who has experience of both the fields i.e. gynecological endoscopy and medicolegal aspects, clears that the law doesn′t expect a 100% cure but expects proper medical care by the concerned gynecologist, gynecological endoscopist. Patient also has to be informed about this important fact.
Decentralisation in India: Towards ‘Localism’ or ‘Regionalism’?
Deepak Gopinath
Commonwealth Journal of Local Governance , 2009, DOI: 10.5130/cjlg.v0i4.1358
Droplet rebound from rigid or strongly hydrophobic surfaces
A. Gopinath
Physics , 2005,
Abstract: A weakly deformable droplet impinging on a rigid surface rebounds if the surface is intrinsically hydrophobic or if the gas film trapped underneath the droplet is able to keep the interfaces from touching. A simple, physically motivated model inspired by analysis of droplets colliding with deformable interfaces is proposed in order to investigate the dynamics of the rebound process and the effects of gravity. The analysis yields estimates of the bounce time that are in very good quantitative agreement with recent experimental data (Okumura et. al., (2003)) and provides significant improvement over simple scaling results.
Construction of Environmental Knowledge: Experiences from India
Deepak Gopinath,Manik D Gopinath
Journal of Sustainable Development , 2009, DOI: 10.5539/jsd.v1n1p2
Abstract: This paper explored key issues in how knowledge of the environment is constructed in the Third World. Drawing on which, it showed that there are both explicit and implicit ways in which this knowledge is contested. Particularly, it discussed how implicit forms of contestation are problematic in Third World economies because they are exclusionary and also where such issues become ‘headlines’ only after environmental damage and accompanying social injustices have resulted. It concludes by raising crucial questions for environmental research in the Third World where there is limited role of governments and communities in protecting their environment.
Skin Sparing Mastectomy in Locally Advanced Breast Cancer: A Possibility?  [PDF]
Vijayashree Murthy, K. S. Gopinath, Anand Krishna
Surgical Science (SS) , 2012, DOI: 10.4236/ss.2012.34044
Abstract: Breast cancer is the second most common cause of cancer death in women in India in spite of advances in the adjuvant treatment of breast cancer. Locally advanced breast cancer (LABC) still represents the major presenting picture in many urban and rural institutions in our country. Skin Sparing Mastectomy (SSM) and primary reconstruction is a popular option for patients with breast cancer. There are similar local and distant recurrences in SSM compared to the traditional non-skin sparing mastectomy. A 57-year-old lady presented with a locally advanced left breast cancer. After undergoing neoadjuvant chemotherapy and a PET-CT to accurately detect residual disease in breast and axilla, she underwent skin sparing mastectomy with nipple-areola complex preservation and primary reconstruction with silicon prosthesis implant over a latissimus dorsi myocutaneous flap for primary reconstruction. SSM in LABC has not been reported in the literature so far. This patient is disease free for the past 24 months.
Investigation on Structural, Optical and Thermal Properties of Diphenyl Urea—An Organic Non-Linear Optical Crystal  [PDF]
Jaishree Damodharan, Kanchana Gopinath, Kesavasamy Ramasamy
Journal of Minerals and Materials Characterization and Engineering (JMMCE) , 2015, DOI: 10.4236/jmmce.2015.32007
Abstract: Organic non-linear optical crystal diphenyl urea with molecular formula C13H12N2O was synthesized and grown successfully by slow evaporation solution growth technique. The single crystal X-ray diffraction (XRD) confirms that it crystallizes in orthorhombic crystal system with non-centrosymmetric space group Pna21. The various functional groups were identified qualitatively by Fourier transform-infra red (FT-IR) and FT-Raman techniques. The electron absorption spectrum was studied by UV-Vis spectrophotometer. Thermal behavior of the crystal was evidenced by thermogravimetric (TG) and differential scanning calorimetric (DSC) analyses. From DSC the melt ing point of the crystal is found to be 145°C. The existence of second harmonic generation (SHG) signal was evidenced using Kurtz Perry powder test and the efficiency of the crystal was found to be 0.64 times that of the standard KDP crystal.
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