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Learning Noise-Assisted Robust Image Features for Fine-Grained Image Retrieval

Computer Systems Science & Engineering 2023年第9期46卷 2711-2724页

作者： vidit kumar Hemant Petwal Ajay Krishan Gairola Pareshwar Prasad Barmola Department of Computer Science and Engineering Graphic Era Deemed to be UniversityDehradun248002India School of Computer Science Engineering and Technology Bennett UniversityGreater Noida201310Uttar PradeshIndia

Fine-grained image search is one of the most challenging tasks in computer vision that aims to retrieve similar images at the fine-grained level for a given query *** key objective is to learn discriminative fine-grained features by training deep models such that similar images are clustered,and dissimilar images are separated in the low embedding *** works primarily focused on defining local structure loss functions like triplet loss,pairwise loss,***,training via these approaches takes a long training time,and they have poor ***,representations learned through it tend to tighten up in the embedded space and lose generalizability to unseen *** paper proposes a noise-assisted representation learning method for fine-grained image retrieval to mitigate these *** the proposed work,class manifold learning is performed in which positive pairs are created with noise insertion operation instead of tightening class *** other instances are treated as negatives within the same *** a loss function is defined to penalize when the distance between instances of the same class becomes too small relative to the noise pair in that class in embedded *** proposed approach is validated on CARS-196 and CUB-200 datasets and achieved better retrieval results(85.38%recall@1 for CARS-196%and 70.13%recall@1 for CUB-200)compared to other existing methods.

关键词： Convolutional network zero-shot learning fine-grained image retrieval image representation image retrieval intra-class diversity feature learning

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Influence of slope position and aspect on the vegetation attributes and treewater relations in forests of the central Himalayas

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Journal of Mountain Science 2023年第9期20卷 2592-2602页

作者： vidit TYAGI Surendra P.SINGH Ripu Daman SINGH Surabhi GUMBER Rajesh THADANI Rajiv PANDEY Dolphin(PG)Institute of Bio-medical and Natural Sciences Dehra Dun 248007India Central Himalayan Environment Association(CHEA) Dehradun 248007India Department of Forestry and Environmental Science DSB CampusKumaun UniversityNainital 263001India Centre for Ecology Development and Research(CEDAR) A-17 Mayfair GardensNew Delhi 110016India Indian Council of Forestry Research and Education(ICFRE) Dehra Dun 248007India

While the need for understanding the effects of topographical factors on forest structure and function is well recognized,comprehensive studies are *** study evaluates the effect of slope aspect and slope position on water relations and forest attributes across six forest types occurring between 400 m and 2600 m altitude in the Central Himalaya(27°-38°N).We found that predawn tree water potential and soil water potential were generally higher on moist north slope aspect(-0.78±0.05 MPa and-3.34±0.18 MPa,respectively)than dry south slope aspect(-0.82±0.18 MPa and-3.77±0.18 MPa,respectively).Across six different forests,these values were higher at hill base(-0.71±0.06 MPa and-2.77±0.19 MPa,tree predawn water potential and soil water potential,respectively)than other topographical *** favorable effect of north aspect and hill base was also observed in maintaining soil water and tree water potential during the dry *** attributes,such as species richness,unique species and plant density were also generally higher on north slope and hill base than southern aspect and lowest at hill *** forest types,the hill base provided shelter to 46 unique species,compared to 16-18 at the other positions,thus emphasizing its importance as refugia for species to survive climate change induced *** favorable conditions of hill base position not only contribute to increase in alpha diversity,but also to extended species distributional range.

关键词： Hill base Himalaya Refugia Unique species Water relation

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Forecasting of in situ electron energy loss spectroscopy

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npj Computational Materials 2022年第1期8卷 2400-2408页

作者： Nicholas R.Lewis Yicheng Jin Xiuyu Tang vidit Shah Christina Doty Bethany E.Matthews Sarah Akers Steven R.Spurgeon Department of Chemical Engineering University of WashingtonSeattleWA98195USA National Security Directorate Pacific Northwest National LaboratoryRichlandWA99352USA Energy and Environment Directorate Pacific Northwest National LaboratoryRichlandWA99352USA Department of Physics University of WashingtonSeattleWA98195USA

Forecasting models are a central part of many control systems,where high-consequence decisions must be made on long latency control *** models are particularly relevant for emerging artificial intelligence(AI)-guided instrumentation,in which prescriptive knowledge is needed to guide autonomous *** we describe the implementation of a long short-term memory model(LSTM)for forecasting in situ electron energy loss spectroscopy(EELS)data,one of the richest analytical probes of materials and chemical *** describe key considerations for data collection,preprocessing,training,validation,and benchmarking,showing how this approach can yield powerful predictive insight into order-disorder phase ***,we comment on how such a model may integrate with emerging AI-guided instrumentation for powerful high-speed experimentation.

关键词： consequence autonomous transitions

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The men’s health center:Disparities in gender specific health services among the top 50“best hospitals”in America

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Asian Journal of Urology 2015年第3期2卷 170-174页

作者： Jeremy Choy James A.Kashanian vidit Sharma Puneet Masson James Dupree Brian Le Robert E.Brannigan Department of Medicine The Warren Alpert Medical School of Brown UniversityProvidenceRLUSA Department of Urology Northwestern UniversityFeinberg School of MedicineChicagoILUSA Department of Urology Mayo ClinicMayo Medical SchoolRochesterMNUSA Department of Urology Perelman School of MedicineUniversity of PennsylvaniaPhiladelphiaPAUSA Department of Urology The University of Michigan Medical SchoolAnn ArborMIUSA Department of Urology Meriter Health ServicesMadisonWIUSA

Objective:Gender-specific integrated health services have long existed in the arena of women’s health care,but men’s health centers(MHCs)have only recently emerged as a novel practice ***,we seek to evaluate the prevalence and format of MHCs found in the leading academic medical centers in the United ***:The US News&World Report’s Top 50 Ranked Hospitals for Urology was used as our *** were gathered on the presence of MHCs and types of providers and conditions *** equivalent search was performed for women’s health centers(WHCs).Results:Sixteen of 50(32%)promoted some type of MHC,compared to 49 of 50(98%)offering a *** of the top 15 ranked institutions(53%)had an MHC compared to eight of 35(23%)remaining *** of 16 MHCs incorporated providers from a variety of medical disciplines,including urologists,internists,endocrinologists,cardiologists,and psychologists,while another six of 16 MHCs were staffed solely by *** of 16 provided services for exclusively urologic issues,four of 16 offered additional services in treatment of other medical conditions,and four of 16 did not specify.

关键词： Disparity Health care delivery Men’s health Women’s health Urology

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Patient safety and quality improvements in parotid surgery

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World Journal of Otorhinolaryngology-Head and Neck Surgery 2022年第2期8卷 133-138页

作者： vidit Talati Hannah J.Brown Tasher Losenegger Peter Revenaugh Samer Al-Khudari Department of Otorhinolaryngology—Head and Neck Surgery Rush University Medical CenterChicagoIllinoisUSA Rush Medical College Rush University Medical CenterChicagoIllinoisUSA

Parotidectomy is the mainstay treatment for tumors of the parotid *** an effort to improve clinical outcomes,several modern surgical techniques and perioperative interventions have been evaluated and *** review discusses current and actively debated perioperative interventions aimed at improving patient safety and the quality of *** high-impact literature pertaining to preoperative diagnostic modalities,intraoperative surgical techniques,and postoperative care will be described.

关键词： parotid parotidectomy patient safety surgical quality

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