157 research outputs found
Bollywood cinema: A critical genealogy
No full text"Bollywood" has finally made it to the Oxford English Dictionary. The 2005 edition defines it as: "a name for the Indian popular film industry, based in Bombay. Origin 1970s. Blend of Bombay and Hollywood." The incorporation of the word in the OED acknowledges the strength of a film industry which, with the coming of sound in 1931, has produced some 9,000 films. (This must not be confused with the output of Indian cinema generally, which would be four times more). What is less evident from the OED definition is the way in which the word has acquired its current meaning and has displaced its earlier descriptors (Bombay Cinema, Indian Popular Cinema, Hindi Cinema), functioning, perhaps even horrifyingly, as an "empty signifier" (Prasad) that may be variously used for a reading of popular Indian cinema. The triumph of the term (over the others) is nothing less than spectacular and indicates, furthermore, the growing global sweep of this cinema not just as cinema qua cinema but as cinema qua social effects and national cultural coding. Although Indian film producers in particular, and pockets of Indian spectators generally, continue to feel uneasy with it (the vernacular press came around to using "Bollywood" only reluctantly), its ascendancy has been such that Bombay Dreams (the Andrew Lloyd Weber musical) and the homegrown Merchants of Bollywood both become signifiers of a cultural logic which transcends cinema and is a global marker of Indian modernity. As the Melbourne (March 2006) closing ceremony of the Commonwealth Games showed, Bollywood will be the cultural practice through which Indian national culture will be projected when the games are held in Delhi in 2010. International games (the Olympics, World Cup Soccer, Asian Games, Commonwealth Games, and so on) are often expressions of a nation's own emerging modernity. For India that modernity, in the realm of culture, is increasingly being interpellated by Bollywood
Automatically extracting interaction and app data from mobile application traces
No full textIn this research, we used an existing system to collect mobile interaction traces and extract meaningful information in terms of interaction data, apps, and layout information and complexity of mobile apps. The preeminent driving force for this research was to come up with a system that is scalable and can be used to extract interactions and layouts from mobile apps, as well as enable us to make claims about the complexity of mobile apps and the flows that they offer. Throughout the course of this research, we collected Android mobile interaction traces and presented a technique which enables extraction of frequent interactive elements from the traces in an unsupervised manner using neural network auto-encoders and k-means clustering. The research work also enables us to find similar layouts across apps and make claims about the location of some of these interactive elements. This research provides a scalable data-driven approach to finding clusters of frequent icons and interactions as well as layouts.Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2018-05-01The student, Abhishek Harish, accepted the attached license on 2016-04-14 at 15:22.The student, Abhishek Harish, submitted this Thesis for approval on 2016-04-14 at 15:27.This Thesis was approved for publication on 2016-04-15 at 13:54.DSpace SAF Submission Ingestion Package generated from Vireo submission #9229 on 2016-07-07 at 13:49:16Made available in DSpace on 2016-07-07T20:27:21Z (GMT). No. of bitstreams: 2
HARISH-THESIS-2016.pdf: 15467630 bytes, checksum: f215401b9a562e8e4fcb47aa44a10efa (MD5)
LICENSE.txt: 4212 bytes, checksum: 63cdef903777511bbade5d70c0a9322d (MD5)
Previous issue date: 2016-04-15Embargo set by: Seth Robbins for item 93109
Lift date: 2018-07-07T20:28:14Z
Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD systemEmbargo set by: Seth Robbins for item 93109
Lift date: 2018-07-07T20:35:34Z
Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD systemU of I Only Restriction Lifted for Item 93109 on 2018-07-08T09:15:09Z
Investigating the Quality of DermaMNIST and Fitzpatrick17k Dermatological Image Datasets
No full text<h2>Abstract</h2>
<p>The remarkable progress of deep learning in dermatological tasks has brought us closer to achieving diagnostic accuracies comparable to those of human experts. However, while large datasets play a crucial role in the development of reliable deep neural network models, the quality of data therein and their correct usage are of paramount importance. Several factors can impact data quality, such as the presence of duplicates, data leakage across train-test partitions, mislabeled images, and the absence of a well-defined test partition. In this paper, we conduct meticulous analyses of three popular dermatological image datasets: DermaMNIST, its source HAM10000, and Fitzpatrick17k, uncovering these data quality issues, measure the effects of these problems on the benchmark results, and propose corrections to the datasets. Besides ensuring the reproducibility of our analysis, by making our analysis pipeline and the accompanying code publicly available, we aim to encourage similar explorations and to facilitate the identification and addressing of potential data quality issues in other large datasets.</p>
<h2>Citation</h2>
<p>If you find this project useful or if you use our newly proposed datasets and/or our analyses, please cite our paper.</p>
<blockquote>
<pre>Kumar Abhishek, Aditi Jain, Ghassan Hamarneh. "Investigating the Quality of DermaMNIST and Fitzpatrick17k Dermatological Image Datasets". arXiv preprint arXiv:2401.14497, 2024. DOI: 10.48550/ARXIV.2401.14497.</pre>
</blockquote>
<p>The corresponding BibTeX entry is:</p>
<blockquote>
<p><code>@article{abhishek2024investigating,</code><br><code> title={Investigating the Quality of {DermaMNIST} and {Fitzpatrick17k} Dermatological Image Datasets},</code><br><code> author={Abhishek, Kumar and Jain, Aditi and Hamarneh, Ghassan},</code><br><code> journal={arXiv preprint arXiv:2401.14497},</code><br><code> doi = {10.48550/ARXIV.2401.14497},</code><br><code> url = {https://arxiv.org/abs/2401.14497},</code><br><code> year={2024}</code><br><code>}</code></p>
</blockquote>
<h2>Project Website</h2>
<p>The results of the analysis, including the visualizations, are available on the project website: <a href="https://derm.cs.sfu.ca/critique/" target="_blank" rel="noopener">https://derm.cs.sfu.ca/critique/</a>.</p>
<h2>Code</h2>
<p>The accompanying code for this project is hosted on GitHub at <a title="Corrected-Skin-Image-Datasets" href="https://github.com/kakumarabhishek/Corrected-Skin-Image-Datasets" target="_blank" rel="noopener">https://github.com/kakumarabhishek/Corrected-Skin-Image-Datasets</a>.</p>
<h2>License</h2>
<p>The DermaMNIST-E, DermaMNIST-C, and Fitzpatrick17k-C datasets contained in this repository are licensed under <a href="https://creativecommons.org/licenses/by-nc/4.0/" target="_blank" rel="noopener">the Creative Commons Attribution-NonCommercial 4.0 International (<strong>CC BY-NC 4.0</strong>) License</a>.</p>
<p>The code hosted on <a href="https://github.com/kakumarabhishek/Corrected-Skin-Image-Datasets" target="_blank" rel="noopener">GitHub</a> is licensed under <a href="https://github.com/kakumarabhishek/Corrected-Skin-Image-Datasets/blob/main/LICENSE" target="_blank" rel="noopener">the Apache License 2.0</a>.</p>
Response surface based experimental analysis and thermal resistance model of a thermoelectric power generation system
No full textIn this work, a response surface analysis is carried out on an experimental setup of a combined two-phase flow thermosyphon and thermoelectric generator (TEG) system. Three-level Box-Behnken response surface method is adopted for the design of experiments, and analysis of variance is carried out to gauge the contribution of operating parameters on various performance parameters. Effects of operating parameters such as working pressure, filling ratio, evaporator length, and evaporator temperature are studied. The performance of the system itself is gauged concerning the maximum power obtained, open circuit voltage and short circuit current. With an increase in vacuum pressure and evaporator temperature, performance parameters are found to increase. However, performance parameters under the influence of filling ratio and evaporator length first decrease and then increase due to uneven variation in evaporation rate of working fluid. Experiments also reveal that the performance of the thermosyphon-assisted (TEG) system is mainly governed by pressure and evaporator temperature, whereas filling ratio and evaporator length have relatively lesser influence.Design and Development of a Solar Pond and Biomass Driven Thermoelectric Unit for Domestic Power Generation using Inverse Method from Science & Engineering Research Boar
Polymer fibre and cellulose composite paper with starch binder for electrical insulation
No full textMaster of TechnologyAs per the demand of power transmission systems the life of transformer depends upon the insulating material used. The most important insulating materials of optimum dielectric strength properties that have been used in large high-voltage transformers through almost a century are the oil impregnated, cellulose-based products: primarily paper and pressboard. The chief disadvantage of cellulosic material for electrical use is that it is hygroscopic in nature and needs to be processed and maintained dry. For power transformers the process is quite elaborate and time consuming. To overcome this limitation, a new area to look forward to is blending of cellulose fibers with synthetic fibers. The most important property of these materials is their high thermal stability. Their dielectric strength is excellent, being above that of Kraft paper, and they retain this property for a sustained period even at high temperature for short periods of time. This work discusses the production of electrical grade composite paper from Kraft pulp, synthetic fibers and cationic starch as binder. The insulation paper produced by blending Kraft pulp with synthetic fibers, polyethylene terepthalate has good mechanical properties making it useful for electrical insulation in transformers.Chemical Engineering Department, Thapar University, Patial
Phylogenomics of vertebrate serpins
No full textKumar A. Phylogenomics of vertebrate serpins. Bielefeld (Germany): Bielefeld University; 2010.The serpins constitute a superfamily of proteins that fold into a conserved tertiary structure and employ a sophisticated, irreversible suicide-mechanism of inhibition. More than 6000 serpins have been identified, occurring in all three forms of the life - the eukaryotes, the prokaryotes and the archea. Vertebrate serpins can be conveniently classified into six groups (V1 - V6), based on three independent biological features - gene organization, diagnostic amino acid sites and rare indels. In the present work, the phylogenetic relationships of serpins from Nematostella vectensis, Strongylocentrotus purpuratus, Ciona intestinalis, four fish species, frog, chicken and mammals were investigated, using gene architecture analyses and stringent criteria for identification of orthologs. With some deviations, all vertebrate serpin genes fit into one of the six exon/intron gene classes previously identified, dating the existence and maintenance of these gene organizations before or close to the divergence of fishes. Group V1 and V2 gene families underwent rapid adaptive radiation along the lineages leading to mammals as indicated by an up to nine-fold increased number of family members, accompanied by a rapid functional diversification. In contrast, gene groups V3 to V6 display a rather conservative evolution with little changes since the divergence of fishes and the other vertebrates. The orthology assessment indicates that all vertebrates are equipped with a subset of strongly conserved serpins with functions that can be clearly correlated with basic vertebrate-specific physiology.
None of serpin genes from C. intestinalis shares a common exon-intron architecture organisation with any of the vertebrate serpin gene classes, nor was it possible to identify orthologs of vertebrates. The lack of gene architecture similarity and the complete absence of orthology between urochordate and vertebrate serpins indicate that major changes with bursts of character acquisition must have occurred during evolution of serpins in the time interval separating urochordates from chordates, indicating massive intron gains or losses and events providing C and N-terminal sequence extensions characteristic for today's vertebrate serpins. Lancelets and sea urchin genomes, in contrast, share one orthologous serpin with vertebrates. Rare genomic characters are used to show that orthologs of neuroserpin, a prominent representative of vertebrate group V3 serpin genes, exist in early diverging deuterostomes and probably also in cnidarians, indicating that the origin of a mammalian serpin can be traced back far in the history of eumetazoans. A C-terminal address code assigning association with secretory pathway organelles is present in all neuroserpin orthologs, suggesting that supervision of cellular export/import routes by antiproteolytic serpins is an ancient trait.
Phylogenomic comparisons show that, after establishment of canonical exon-intron patterns in the serpin superfamily at the dawn of vertebrate evolution, multiple intron acquisition events have occurred during diversification of a lineage of actinopterygian fishes. The novel introns were acquired within a limited time interval (on an evolutionary timescale), and no such events were observed in other groups of vertebrates. Examination of the sequences flanking the intron insertion points revealed that the genetic requirements for acquisition of novel introns might be less stringent than previously suggested. Finally, we argue that genome compaction, a phenomenon associated with the fish lineage depicting preferential intron gain, might promote intron acquisition
Inverse prediction and optimization analysis of a solar pond powering a thermoelectric generator
No full textA given temperature difference across the upper and the lower convective zone of a solar pond is commonly
sought in thermoelectric power generation. Based on this consideration, this work is aimed at predicting the
lengths of various zones of a solar pond to ensure a minimum temperature potential throughout the year be-
tween its upper and lower convective zones. For predicting the critical lengths of various zones of the solar pond,
at first, the heat energy conservation-based model available in the literature is modified by accounting the effect
of salinity and temperature on various thermal parameters. The model is satisfactorily-validated with similar
model and experimental data reported in the literature. Thereafter, considering the requirement of a thermo-
electric power generator (TEG), an inverse problem is solved with the aid of a genetic algorithm-based opti-
mization method to predict feasible lengths of various zones satisfying a minimum temperature potential across
TEG considering suitable thermal resistances. The present results reveal improved pond dimensions achieving a
better temperature profile at a lower total height than that available in the literature. Further, case studies of
diverse meteorological conditions of India are carried out and it becomes apparent that, around the year,
multiple combinations of convective and non-convective regions of the solar pond can ensure the required
minimum (or more) temperature difference across relevant zones of the solar pond. Finally, the present study
also reveals that the temperature of the upper convective zone is largely governed by the thickness of this zone,
whereas, the thickness of the non-convective zone is largely responsible for the temperature within the storage
zone. The present study provides a novel inverse methodology to predict and optimize the suitable dimensions of
various regions of a salt-gradient solar pond to ensure a minimum temperature potential across the year for
thermoelectric power generation.Science & Engineering Research Board (SERB
Necessity of Quantizable Geometry for Quantum Gravity
No full textIn this paper, Dirac Quantization of gravity in the first-order
formalism is attempted where instead of quantizing the connection and triad
fields, the connection and the triad 1-forms themselves are quantized. The
exterior derivative operator on the space of differential forms is treated as
the `time' derivative to compute the momenta conjugate to these 1-forms. This
manner of quantization allows one to compute the transition amplitude in
gravity which has a close, but not exact, match with the transition amplitude
computed via LQG techniques. This inconsistency is interpreted as being due to
the non-quantizable nature of differential geometry.Comment: 12 pages, 3 figures, Added my grant number in the acknowledgemen
Gateway-like absurdly-benign traversable wormhole solutions
No full textA class of wormhole solutions is constructed that has restricted polar
degrees of freedom to achieve a gateway-like configuration. This compels the
use of distribution-valued metrics and connections which further compels the
use of neutrix product of distributions, to define distribution-valued
curvature, Einstein tensor, and other relevant quantities. The solution demands
a spacetime with non-Riemannian effects like non-metricity to be consistent and
well-defined, due to the non-associativity of the neutrix product. Finally, the
ideal gateway configuration where the negative energy requirement is zero is
derived.Comment: 24 pages, Accepted for print in the 'Theoretical and Mathematical
Physics' (Russian Academy of Sciences
Gamification for achieving sustainability: Trends and future scope
No full textThis study presents current trends and scope of gamification in achieving sustainability. We conduct bibliometric analysis of extant literature with SPAR-4-SLR method. Year-wise, author-wise, citation-wise, country-wise, source-wise, affiliation-wise, sponsoring institutions-wise, and keywords-wise listing are the parameters to analyze literature. The study concludes that gamification is employed in different business processes and different domains like health, business, tourism, and education to achieve sustainability. Gamification tools like augmented reality, virtual reality, simulation, and serious game are prominent games analyzed in literature. Hence, achieving SDGs through gamification is an interesting arena to be explored for further studies
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