Filters








123 Hits in 1.3 sec

CNN based Extraction of Panels/Characters from Bengali Comic Book Page Images [article]

Arpita Dutta, Samit Biswas
2019 arXiv   pre-print
Peoples nowadays prefer to use digital gadgets like cameras or mobile phones for capturing documents. Automatic extraction of panels/characters from the images of a comic document is challenging due to the wide variety of drawing styles adopted by writers, beneficial for readers to read them on mobile devices at any time and useful for automatic digitization. Most of the methods for localization of panel/character rely on the connected component analysis or page background mask and are
more » ... e only for a limited comic dataset. This work proposes a panel/character localization architecture based on the features of YOLO and CNN for extraction of both panels and characters from comic book images. The method achieved remarkable results on Bengali Comic Book Image dataset (BCBId) consisting of total 4130 images, developed by us as well as on a variety of publicly available comic datasets in other languages, i.e. eBDtheque, Manga 109 and DCM dataset.
arXiv:1910.09233v1 fatcat:tsuj5cjjc5dfjlnanorbemlplq

Green DRCT

Sangharatna Godboley, Arpita Dutta, Durga Prasad Mohapatra
2017 International Journal of Knowledge Discovery in Bioinformatics  
Being a good software testing engineer, one should have the responsibility towards environment sustainability. By using green principles and regulations, we can perform Green Software Testing. In this paper, we present a new approach to enhance Branch Coverage and Modified Condition/ Decision Coverage uses concolic testing. We have proposed a novel transformation technique to improve these code coverage metrics. We have named this new transformation method Double Refined Code Transformer
more » ... Then, using JoulMeter, we compute the power consumption and energy consumption in this testing process. We have developed a tool named Green-DRCT to measure energy consumption while performing the testing process.
doi:10.4018/ijkdb.2017010102 fatcat:332lb7o62rgclfo4hatssscpni

Managing Overstaying Electric Vehicles in Park-and-Charge Facilities [article]

Arpita Biswas, Ragavendran Gopalakrishnan, Partha Dutta
2016 arXiv   pre-print
With the increase in adoption of Electric Vehicles (EVs), proper utilization of the charging infrastructure is an emerging challenge for service providers. Overstaying of an EV after a charging event is a key contributor to low utilization. Since overstaying is easily detectable by monitoring the power drawn from the charger, managing this problem primarily involves designing an appropriate "penalty" during the overstaying period. Higher penalties do discourage overstaying; however, due to
more » ... tainty in parking duration, less people would find such penalties acceptable, leading to decreased utilization (and revenue). To analyze this central trade-off, we develop a novel framework that integrates models for realistic user behavior into queueing dynamics to locate the optimal penalty from the points of view of utilization and revenue, for different values of the external charging demand. Next, when the model parameters are unknown, we show how an online learning algorithm, such as UCB, can be adapted to learn the optimal penalty. Our experimental validation, based on charging data from London, shows that an appropriate penalty can increase both utilization and revenue while significantly reducing overstaying.
arXiv:1604.05471v2 fatcat:j4hhbuogf5az5alndzsnsanttq

An Investigation into the Effectiveness of White-Box T-way Testing

Arpita Dutta, Anwesha Patel, Rajib Mall
2019 IET Software  
An unduly large number of test cases are required for effective testing of programmes containing complex decision statements. In this context, modified condition/decision coverage (MC/DC) testing has been acknowledged to provide effective testing using a test suite whose size is linear in the number of the clauses present in a predicate. MC/DC testing is wellaccepted and is mandated by several testing standards. T-way testing is another prominent testing technique that helps to limit the
more » ... torial explosion of black-box test cases. Its application to white-box testing promises to provide effective testing with a comparatively small number of test cases. The authors empirically investigate the effectiveness of MC/DC testing vis-à-vis white-box pairwise, 3-way and 4-way testing.
doi:10.1049/iet-sen.2018.5309 fatcat:z7dqczfgazh23d53iyxiv6djdi

Exploratory Investigation on Functional Significance ofETS2andSIM2Genes in Down Syndrome

Arpita Chatterjee, Samikshan Dutta, Swagata Sinha, Kanchan Mukhopadhyay
2011 Disease Markers  
Trisomy of the 21st chromosome leads to an over dosage of several regulatory genes in Down syndrome (DS). Though allelic and genotypic combinations formed between genes are interesting, till date, this particular area has never been explored in DS. In the present investigation four SNPs in two transcription factors, Single minded 2 (SIM2) and V-ets erythroblastosis virus E26 oncogene homolog2 (ETS2), located in the 21st chromosome were genotyped to understand their role in DS. Genomic DNA of
more » ... tern Indian probands with DS (N= 132), their parents (N= 209) and ethnically matched controls (N= 149) was subjected to PCR-based analyses of functionally important SNPs followed by statistical analyses.ETS2rs461155 showed high heterozygosity in DS. Significantly lower frequency ofSIM2C-G haplotype (rs2073601-rs2073416) was noticed in individuals with DS (Pvalue = 0.01669) and their fathers (Pvalue = 0.01185). Significantly lower frequency of the A-C-C-G with higher frequency of A-C-A-G haplotypes was also noticed in subjects with DS (Pvalue = 0.02089 and 0.00588 respectively). Data obtained indicate that the rs2073601 'A' allele, responsible for nonsynonymous substitution of leucine to methionine, may have some role in DS in this population.
doi:10.1155/2011/208970 pmid:22048266 pmcid:PMC3826905 fatcat:3ztllw3zhzclhpktjsomk52g2m

Organic Food Business in India: A Survey of Companies

Arpita Mukherjee, Avantika Kapoor, Souvik Dutta
2018 Research in Economics and Management  
<p>In recent years, the Government of India has come up with policy initiatives to promote organic food for domestic market and exports. Such measures are expected to increase investment in organic food manufacturing and retailing, and create employment. Indian entrepreneurs have responded positively to these initiatives and a number of start-ups have come up in this sector. Many conventional food manufacturers, retailers, and exporters have diversified their businesses to include organic food
more » ... roducts. India's trade in organic food products has also increased. </p><p>This paper, based on a primary survey of companies engaged in organic food business in India, analyses their reasons for entering the organic business, their business models and sourcing process, how they work with organic farmers, what opportunities and risks they perceive, and what they want from the Indian government in terms of policies and incentives. It also examines the companies' perception about the growth of this sector, and makes policy recommendations on how organic food can attract investment across the food supply chain and continue on a high growth trajectory.</p>
doi:10.22158/rem.v3n2p72 fatcat:tx7xx7yd6vfnzotcngpawgbyzq

Linear Cryptanalysis through the Lens of Clauser-Horne-Shimony-Holt Game [article]

Arpita Maitra, Ravi Anand, Suman Dutta
2021 arXiv   pre-print
Application of CHSH game in Linear Cryptanalysis is presented. Till date, the known usage of CHSH game in Quantum Cryptology is to verify the device independence of the protocols. We observed that the classical symmetric ciphers having the bias equal to 0:25 can be improved to 0:35 exploiting the game which indicates clear improvement over existing Linear and Differential cryptanalysis. In the present initiative, we showed the application of the game in linear cryptanalysis on a lightweight
more » ... er named SIMON. However, the approach can be extended to Differential cryptanalysis too. This observation opens a new direction of research in quantum cryptography.
arXiv:2111.01656v2 fatcat:eccxsqqeuvfj3dnamhbcefdhje

Testosterone regulates granzyme K expression in rat testes

Dibyendu Dutta, In Park, Hiwot Guililat, Samuel Sang, Arpita Talapatra, Barkha Singhal, Nathaniel C. Mills
2017 Endocrine Regulations  
TUNEL assay was performed by following the previously described method (Dutta et al. 2012) .  ...  A total of ten random fi elds per cross-section from each rat (n=6) in each treatment group were counted to quantify the number of apoptotic cells in the testis (Dutta et al. 2012 ).  ... 
doi:10.1515/enr-2017-0020 pmid:29232193 fatcat:magna7fmijesdhbdtlwhrns3vi

Potential contribution of SIM2 and ETS2 functional polymorphisms in Down syndrome associated malignancies

Arpita Chatterjee, Samikshan Dutta, Sanjit Mukherjee, Nupur Mukherjee, Avirup Dutta, Ashis Mukherjee, Swagata Sinha, Chinmay Kumar Panda, Keya Chaudhuri, Ananda L Roy, Kanchan Mukhopadhyay
2013 BMC Medical Genetics  
Proper expression and functioning of transcription factors (TFs) are essential for regulation of different traits and thus could be crucial for the development of complex diseases. Subjects with Down syndrome (DS) have a higher incidence of acute lymphoblastic leukemia (ALL) while solid tumors, like breast cancer (BC) and oral cancer (OC), show rare incidences. Triplication of the human chromosome 21 in DS is associated with altered genetic dosage of different TFs. V-ets erythroblastosis virus
more » ... 26 oncogene homolog 2 (ETS2) and Single Minded 2 (SIM2) are two such TFs that regulate several downstream genes involved in developmental and neurological pathways. Here we studied functional genetic polymorphisms (fSNP) in ETS2 and SIM2 encoding genes in a group of patients and control subjects to better understand association of these variants with DS phenotypes. Methods: We employed an in silico approach to identify potential target pathways of ETS2 and SIM2. fSNPs in genes encoding for these two TFs were identified using available databases. Selected sites were genotyped in individuals with DS, their parents, ALL, BC, OC as well as ethnically matched control individuals. We further analyzed these data by population-based statistical methods. Results: Allelic/genotypic association analysis showed significant (P < 0.03) differences of rs2070530, rs1051476, rs11254, rs711 for DS subjects compared to control. rs711 also exhibited significantly different genotypic distribution pattern in parents of DS probands (P < 0.02) and BC patients (P < 0.02). Interaction analysis revealed independent main effect of rs711 in all the groups, while rs11254 exhibited independent main effect in DS subjects only. High entropy values were noticed for rs461155 in the solid tumor groups. Significant interactive effects of rs2070531 with rs1051475, rs1051476, rs11254 were observed in all the groups except DS. Conclusions: We infer from the present investigation that the difference in frequencies of fSNPs and their independent as well as interactive effects may be the cause for altered expression of SIM2 and ETS2 in DS and malignant groups, which affects different downstream biological pathways. Thus, altered expression of SIM2 and ETS2 could be one of the reasons for variable occurrence of different malignant conditions in DS. a NS = Nonsynonymous, Syn = Synonymous, Cod = Coding, FS = Frame shift. b A1 = Major allele, A2 = Minor allele, allele mentioned in bold letter is the ancestral allele. c NK = Not known. d CEU: Caucasians from Utah with ancestry from western and northern Europe; YRI: Yoruba from Ibadan, Nigeria; HCB: Han Chinese from Beijing, China and JPT: Japanese from Tokyo, Japan.
doi:10.1186/1471-2350-14-12 pmid:23343470 pmcid:PMC3563522 fatcat:4lgjvv4nqvdgfl2pawerfisyxy

Management of Obstetrics and Gynecological Patients with COVID-19

Arjun Heda, Sapna Sharma, Arpita Jaiswal Singam, Neema Achary, Shaina Dutta
2021 Journal of Pharmaceutical Research International  
Since December 2019, the Coronavirus illness, commonly known as COVID19, has quickly spread from Wuhan, China. The first COVID-19 patient was identified in Italy on February 20, 2020, and developed respiratory failure, prompting hospitalization to the critical care unit (ICU). For more than a year, the highly contagious and lethal coronavirus illness has been causing havoc on the earth. It has progressed to a pandemic level affecting the lives of millions around the globe. The condition can
more » ... ict anybody, and there is currently no definitive treatment. Pregnant women do not appear to be more susceptible to infection than the general population. On the other hand, pregnant women have a different immune system and a stronger overall response to viral infections, which could lead to more severe symptoms in some cases, such as COVID-19. COVID-19 presents a minimal overall risk to expecting moms. On the other hand, pregnancy increases the chance of COVID-19-related severe illness and fatality. On the other hand, pregnant women may be more susceptible to serious, potentially fatal respiratory illnesses. Furthermore, research shows that maternal-fetal transfer occurs via contact with respiratory secretions, excluding transmission in the womb. As a result, the best way to manage breastfeeding is uncertain, and the infant may need to be isolated from the mother for a short time. Finally, because healthcare providers are at a higher risk of infection during birth, further measures must be followed along with a proper management and care plan of both the mother and the health care provider.
doi:10.9734/jpri/2021/v33i60b34817 fatcat:n7x4t2afrzahjgkwvzweuek5xe

Bacteriological Profile of Recurrent Upper Respiratory Tract Infection in Children Attending a Tertiary Care Hospital

Arpita Paul Dutta, Sayantani Endow Dutta, Rahul Mazumdar, Mridula Chatterjee, Arunabha Sarkar
2017 International Journal of Current Microbiology and Applied Sciences  
doi:10.20546/ijcmas.2017.608.303 fatcat:adtiaj6uhnadbi3lvkfznvhf5a

Hypertension and Related Morbidity among Geriatric Population of Eastern India

Datta Pratim, Sengupta Bhaswati, Gangopadhyay Nilanjan, Firdoush Ashique, Chanda Subhasis, Dutta Arpita, Bharati Subhadip
2012 Materia socio-medica  
Objectives: To assess the prevalence of hypertension among geriatric population and to find out its association with socio demographic parameters, non communicable diseases and level of daily activities. Methodology: Community based cross sectional study was conducted among geriatric population of Tarakeswar town, India. 402 persons were selected from total 2258 elderly persons by systematic random sampling and data was collected using pretested questionnaire followed by physical examination.
more » ... ta was analyzed using SPSS Version 16.0. Results: 53.5% respondents were hypertensive. Prevalence of hypertension was significantly more among higher age group (p=0.031). Hypertension was also associated with Diabetes mellitus (p<0.001), cardiovascular diseases (p<0.001), cerebrovascular accidents (p<0.001) and obesity (p<0.001). 38.46% hypertensives were not under medication. Practice of taking antihypertensive medicines was significantly lower in lower income group (30.8% versus 80.6%; p<0.001) and illiterates (34.0% versus 74.8%; p<0.001). Activities of daily living for self-maintenance and level of satisfaction over life were significantly lower among hypertensives. Conclusion: More than half of the elderly are suffering from hypertension. Most of the hypertensives are suffering also from other diseases, resulting in significant reduction of daily activities and compromised satisfaction over life. Hypertension, being a treatable ailment, leaves a space for intervention to reduce these geriatric morbidities.
doi:10.5455/msm.2012.24.29-33 pmid:23922513 pmcid:PMC3732350 fatcat:4s734sikc5ccli4s4wr6yos5ye

Demand Prediction and Placement Optimization for Electric Vehicle Charging Stations [article]

Ragavendran Gopalakrishnan, Arpita Biswas, Alefiya Lightwala, Skanda Vasudevan, Partha Dutta, Abhishek Tripathi
2016 arXiv   pre-print
Effective placement of charging stations plays a key role in Electric Vehicle (EV) adoption. In the placement problem, given a set of candidate sites, an optimal subset needs to be selected with respect to the concerns of both (a) the charging station service provider, such as the demand at the candidate sites and the budget for deployment, and (b) the EV user, such as charging station reachability and short waiting times at the station. This work addresses these concerns, making the following
more » ... hree novel contributions: (i) a supervised multi-view learning framework using Canonical Correlation Analysis (CCA) for demand prediction at candidate sites, using multiple datasets such as points of interest information, traffic density, and the historical usage at existing charging stations; (ii) a mixed-packing-and- covering optimization framework that models competing concerns of the service provider and EV users; (iii) an iterative heuristic to solve these problems by alternately invoking knapsack and set cover algorithms. The performance of the demand prediction model and the placement optimization heuristic are evaluated using real world data.
arXiv:1604.05472v2 fatcat:xyezrfrnnnfs5jdy7gs3i3ekbq

A NEONATAL TETANUS DEATH: AN OPPORTUNITY LOST
English

Jenita Baruah, Tulika G Mahanta, Abhijit Dutta, Arpita Gogoi
2013 Journal of Evolution of Medical and Dental Sciences  
doi:10.14260/jemds/873 fatcat:2iageaa4gndanftc63aq22slxm

Nocturnal foraging by Buff-striped Keelbacks, Amphiesma stolatum (Linnaeus 1758) (Reptilia: Squamata: Natricidae)

Arpita Dutta, Subhadeep Chowdhury, Anirban Chaudhuri
2017 Reptiles & amphibians : conservation and natural history  
Arpita Dutta. All rights reserved.  ...  Photograph by Arpita Dutta.  ... 
doi:10.17161/randa.v24i3.14202 fatcat:p5nnatvtsrawzalw7vedlrx3a4
« Previous Showing results 1 — 15 out of 123 results