Roselyne Cheruiyot | Entrepreneurship and Sustainability | Best Researcher Award

Roselyne Cheruiyot | Entrepreneurship and Sustainability | Best Researcher Award

Dr Roselyne Cheruiyot, School of Business Sciences, University of the Witwatersrand, Johannesburg, South Africa, Wits Strategic Foresight Research Group, South Africa. South Africa

Based on the impressive academic and professional profile of Dr. Roselyne Cheruiyot, she is indeed a strong candidate for the Best Researcher Award. Her teaching and research interests align closely with contemporary issues in management, particularly in human resource management, corporate social responsibility, and entrepreneurship. Here’s a summary of her qualifications and achievements, structured into sections for clarity:

Publication profile

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Academic Background

Dr. Roselyne Cheruiyot has a robust educational foundation with a PhD in Human Resource Management and Management from the University of Witwatersrand, complemented by master’s degrees in Accountancy and Applied Ethics. Her bachelor’s degree in Business Management, specializing in Human Resource Management, provides her with a comprehensive understanding of both the theoretical and practical aspects of management.

Research Interests

Dr. Cheruiyot’s research spans crucial areas such as corporate social responsibility, sustainability, business ethics, and organizational behavior. Her specific focus on entrepreneurship and business strategy demonstrates her commitment to addressing pressing challenges within the business sector, making her research highly relevant and impactful.

Teaching and Academic Experience

As a lecturer at Wits Business School, Dr. Cheruiyot excels in imparting knowledge on People Management and Corporate Social Investment. Her experience as a research fellow and sessional lecturer further underscores her expertise in human resource management and corporate social responsibility. She actively contributes to the academic community by supervising MBA dissertations and publishing her findings in peer-reviewed journals.

Awards and Recognitions

Dr. Cheruiyot has received multiple accolades, including the Teaching and Learning Award for her outstanding contributions as a lecturer. Her recognition at the Cross-faculty Postgraduate Symposium and various merit awards highlights her exceptional academic achievements and research contributions.

Notable Publications

Dr. Cheruiyot’s publication record is commendable, with articles focusing on the effects of corporate social performance on purchasing behavior and sustainable leadership in community-based enterprises. Her recent article, “Complex Systems and Sustainable Leadership: Enhancing Resilience and Sustainability of Community-Based Social Enterprises in Soweto, South Africa,” published in Sustainability, showcases her commitment to advancing knowledge in her field.

Publication top notes

Complex Systems and Sustainable Leadership: Enhancing Resilience and Sustainability of Community-Based Social Enterprises in Soweto, South Africa

Conclusion

In summary, Dr. Roselyne Cheruiyot’s comprehensive academic background, extensive research contributions, and dedication to teaching position her as an exemplary candidate for the Best Researcher Award. Her work not only enhances the understanding of critical issues in business management but also fosters a positive impact on the community through her commitment to sustainability and ethical practices.

Viktor Viglasky | Biology and Life Sciences | Best Researcher Award

Viktor Viglasky | Biology and Life Sciences | Best Researcher Award

Assoc Prof Dr Viktor Viglasky, P.J.Safarik University in Kosice, Slovakia

Based on the extensive qualifications and contributions of Associate Professor Dr. Viktor Víglaský, he appears to be a highly suitable candidate for the Best Researcher Award.

Publication profile

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Research for Best Researcher Award: Assoc. Prof. Dr. Viktor Víglaský

Training, Preparation, and Participation in International Projects
Dr. Viktor Víglaský has an impressive track record of representing Slovakia in numerous international research initiatives, including significant EU COST projects such as Epigenetic Chemical Biology and MP0802. He has also contributed to the MARCY project and completed scientific internships in prestigious institutions like INSERM in Paris. His academic journey includes a full university degree in Biochemistry from Charles University, equipping him with a solid foundation in biochemistry, molecular biology, and biophysics.

Awards and Recognitions

His commitment to research and education has been recognized through several awards, including the Young Researcher of the Year in the Slovak Republic (2000) and the Dean’s Award for Teaching Activity (2019).

Research and Educational Contributions

Dr. Víglaský has supervised a substantial number of graduate students, guiding 7 PhD candidates, 35 master’s theses, and 18 bachelor theses. His teaching encompasses a broad spectrum of subjects related to biochemistry and molecular biology, demonstrating his dedication to student education.

Publications and Impact

He has authored 34 articles in esteemed scientific journals indexed in WoS and Scopus, accumulating around 900 citations, with a notable H-index of 18. His published works, such as research on G-quadruplexes, have contributed significantly to advancing knowledge in the field.

Research Projects

Dr. Víglaský has been the responsible investigator for several noteworthy projects, exploring innovative topics like self-assembling G-DNA structures and the role of hypoxia in cardiovascular risks. His collaborative efforts and contributions to projects involving G-quadruplexes have underscored his impact on both basic and applied research.

Publication top notes

G-QINDER Tool: Bioinformatically Predicted Formation of Different Four-Stranded DNA Motifs from (GT)n and (GA)n Repeats

Given Dr. Víglaský’s extensive experience, significant research output, and dedication to education, he exemplifies the qualities of an exceptional researcher. His contributions not only advance scientific understanding but also inspire the next generation of scientists.

 

Toshihiro Sakurai | Animal reproduction | Best Researcher Award

Toshihiro Sakurai | Animal reproduction | Best Researcher Award

Prof Toshihiro Sakurai, Ohu University, Japan

Based on the impressive research profile of Prof. Toshihiro Sakurai, he appears to be a highly suitable candidate for the Best Researcher Award. Below is a structured overview of his qualifications, research contributions, and the significance of his work.

Publication profile

Scopus

Research Contributions

Prof. Toshihiro Sakurai is an esteemed researcher in the field of veterinary reproductive science, particularly focusing on enhancing livestock fertility. His work centers on elucidating the fetomaternal relationship during early pregnancy, aiming to improve conception rates and prevent embryonic loss in livestock.

Key Research Areas

  • In Vitro Model Development: Sakurai has developed an innovative in vitro model of implantation that allows for the investigation of molecular mechanisms underlying embryo implantation.
  • Signaling Molecules: His research emphasizes the expression control of interferon tau, a vital signaling molecule for pregnancy recognition in ruminants.
  • Epithelial-Mesenchymal Transition (EMT): He investigates the EMT of embryonic trophoblast cells, critical for placental development and successful implantation.

Publications

Prof. Sakurai has contributed to multiple high-impact publications, highlighting his findings and advancing knowledge in reproductive biotechnology:

  1. Tamura et al. (2009): Explored the inhibition of angiogenesis by IGFBP7.
  2. Nakamura et al. (2016): Investigated the induction of IFNT-stimulated genes by exosomes during the attachment period.
  3. Kusama et al. (2018): Demonstrated the necessity of intrauterine exosomes for bovine conceptus implantation.
  4. Sakurai et al. (2023): Discussed the progressive exaptation of endogenous retroviruses in placental evolution in cattle.

Impact of Research

Prof. Sakurai’s research significantly contributes to the fields of reproductive biotechnology and livestock production efficiency. His innovative approaches and findings aim to address critical challenges in animal reproduction, potentially leading to improved agricultural productivity and sustainability.

Publication top notes

Progressive Exaptation of Endogenous Retroviruses in Placental Evolution in Cattle

Expression of NFIL3 and CEBPA regulated by IFNT induced-PGE2 in bovine endometrial stromal cells during the pre-implantation period

Characterization of Serum Metabolome and Proteome Profiles Identifies SNX5 Specific for Pregnancy Failure in Holstein Heifers

Prof. Toshihiro Sakurai embodies the qualities of an outstanding researcher, with impactful contributions that align well with the criteria for the Best Researcher Award. His dedication to advancing reproductive science not only benefits the scientific community but also has significant implications for agricultural practices globally.

 

Barbara Boucher | Medical Hypotheses | Medical Hypothesis Award

Barbara Boucher | Medical Hypotheses | Medical Hypothesis Award

Dr Barbara Boucher Queen Mary University of London United Kingdom

Based on Dr. Barbara Boucher’s extensive background and research, she appears to be a suitable candidate for the Medical Hypothesis Award for several reasons:

Publication profile

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  1. Comprehensive Medical Training: Dr. Boucher’s foundation in medicine, complemented by an intercalated BSc, reflects a strong academic and clinical background essential for advancing medical research.
  2. Diverse Clinical Experience: Her role as a joint NHS consultant and academic physician showcases her capability in both patient care and teaching. Leading an acute and specialist care team demonstrates her leadership and commitment to improving health services.
  3. Innovative Teaching and Mentorship: Dr. Boucher’s dedication to bedside teaching, tutoring, and formal education in diabetes, endocrinology, and clinical biochemistry indicates her passion for mentoring the next generation of medical professionals.
  4. Development of Specialized Services: She has successfully established a radio-immunoassay laboratory and has contributed to innovative diabetes care programs, reflecting her ability to implement effective healthcare solutions.
  5. Continued Research Focus: Dr. Boucher’s commitment to research, even during clinical retirement, underscores her dedication to advancing medical knowledge. Her work primarily on vitamin D and the non-cancerous effects of betel-chewing illustrates her interest in impactful public health issues.
  6. Peer-Reviewed Publications: Her extensive publication record in reputable journals, such as Nutrients and Biomedicines, demonstrates her contributions to the scientific community. The articles address critical health issues, including vitamin D deficiency and its health implications, which are significant for public health policy and medical practice.
  7. Collaborative Research: Her collaborative efforts with colleagues locally and internationally enhance the relevance and application of her research, contributing to a broader understanding of health impacts on diverse populations.

Suggested Hypothesis for Consideration

Given her research on vitamin D and its implications for various health outcomes, a potential hypothesis she might explore could be:

“Investigating the Role of Vitamin D in Modulating Health Outcomes Among Diverse Populations: A Comprehensive Study on Serum Levels and Associated Health Risks.”

This hypothesis aligns with her research interests and has the potential to impact public health significantly, making her a strong candidate for the Medical Hypothesis Award.

Publication top notes

 

Keynesménio Neto | Environmental Science | Best Researcher Award

Keynesménio Neto | Environmental Science | Best Researcher Award

Assist Prof Dr Keynesménio Neto, University of São Tomé and Príncipe, Sao Tome and Principe

Publication profile

google scholar

Educational Background

Assist Prof Dr. Keynesménio Neto is currently pursuing a Doctorate in Geological Resources and Environment at the University of Coimbra, focusing on the “Geological Heritage of São Tomé and Príncipe.” He holds a Master’s degree in Geosciences with a specialization in Petroleum Geology, where he explored the “Nanofósseis calcários” of Portugal.

Professional Experience

Dr. Neto has been a researcher at the University of Coimbra since 2010 and has served as an Invited Assistant at various institutions, including the Public University of São Tomé and Príncipe. He has extensive teaching experience and has played a significant role in educational and research projects.

Research Contributions

His work includes notable publications such as “Geoheritage at the Equator: Selected Geosites of São Tomé Island,” and “Geoconservation in Africa: State of the Art and Future Challenges,” highlighting his expertise in geoheritage and sustainable practices. He actively contributes to scientific committees and international conferences, further demonstrating his commitment to advancing environmental education.

Distinctions and Grants

Dr. Neto received grants to support oral presentations for young researchers and has been recognized for his contributions to the field, exemplifying his influence on future generations.

Publication top notes

Geoheritage at the equator: selected geosites of São Tomé island (Cameron line, Central Africa)

Geoconservation in Africa: State of the art and future challenges

Nanofosseis calcarios da passagem Aaleniano-Bajociano do perfil do Cabo Mondego-Portugal (GSSP do Bajociano)

Geoheritage at the Equator: Revisiting Selected Geosites of São Tomé Island (Cameron Line, Central Africa)

Day 1; Stop 1A–Cabo Mondego North

geoheritage at the equator: selected geosites of São Tomé Island (Cameron Line, Central Africa). Sustainability 7: 648–667

Geoheritage of the Príncipe UNESCO World Biosphere Reserve (West Africa): Selected Geosites

A Geo-Itinerary to Foster Sustainable Tourism in West African Islands: Storytelling the Evolution of the Ancient Cameroon Volcanic Line Coral Reefs

Os geo-itinerários como meio de divulgação do património geológico de São Tomé e Príncipe

Conclusion

Given his academic qualifications, extensive research contributions, teaching experience, and active participation in scientific discourse, Assist Prof Dr. Keynesménio Neto is highly suitable for the Best Researcher Award. His dedication to geological heritage and education positions him as a leading figure in his field. 🌍📚🏆

 

Costica MOROSANU | Mathematics | Best Researcher Award

Costica MOROSANU | Mathematics | Best Researcher Award

Prof Dr Costica MOROSANU, “Alexandru Ioan Cuza” University, Romania

Based on the detailed educational background, professional achievements, and extensive publication record of Prof. Dr. Costică Moroșanu, it is my opinion that he would be a strong candidate for the Best Researcher Award.

Publication profile

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Educational Excellence

Prof. Moroșanu holds a Ph.D. in Mathematics with specialization in partial differential equations and optimal control, demonstrating a deep foundation in both theoretical and applied mathematics.

Diverse Scientific Contributions

His research interests span various fields such as partial differential equations, numerical methods, and applied mathematics. He has worked extensively on approximation and control problems governed by partial differential equations, free boundary problems, and industrial mathematics. His expertise extends to computer science, with proficiency in multiple programming languages and software used in scientific research.

Scientific Publications

Prof. Moroșanu has numerous high-impact publications, including his book Qualitative and Quantitative Analysis for Mathematical Models of Phase Separation and Transition (co-authored with Alain Miranville), which is widely cited in mathematical and applied sciences communities. His recent journal articles cover a broad range of topics from magnetohydrodynamics (MHD) to fractional step schemes and boundary value problems, reflecting his contributions to both theoretical advancements and real-world applications.

Collaborative Research

His collaborations with esteemed researchers such as Constantin Fetecău and Alain Miranville further highlight his significant influence in the scientific community. This collaborative research has applications in fields like engineering, industry, and image segmentation, showcasing the practical impact of his work.

Academic and Professional Development

In addition to his research contributions, Prof. Moroșanu has introduced and taught several new courses at the university level, shaping future generations of mathematicians and computer scientists. His role in supervising student research, including numerous Master’s theses, reinforces his commitment to academic mentorship.

Publication top notes

Given his extensive contributions to mathematics, computational methods, and their practical applications, Prof. Dr. Costică Moroșanu’s achievements align well with the criteria typically considered for the Best Researcher Award. His work is not only academically rigorous but also has far-reaching implications across various industries.

 

Russka Shumnalieva | Medicine and Health Sciences | Best Researcher Award

Russka Shumnalieva | Medicine and Health Sciences | Best Researcher Award

Assist Prof Dr Russka Shumnalieva, Medical University-Sofia, Bulgaria, Bulgaria

Based on the details provided, Assist. Prof. Dr. Russka Shumnalieva appears to be a strong candidate for a Best Researcher Award.

Publication profile 

Orcid

  1. Expertise in Rheumatology: Dr. Shumnalieva has extensive experience in rheumatology, working at the largest university clinic for rheumatic diseases in Bulgaria. Her PhD thesis focuses on epigenetic modifications and their relation to rheumatic diseases, demonstrating in-depth research in disease mechanisms.
  2. Clinical Integration: Her research not only addresses theoretical aspects but also their application in clinical practice. Her work includes utilizing advanced techniques such as MSUS, capillaroscopy, and mini-invasive arthroscopy, showcasing her hands-on expertise in treating and monitoring patients.
  3. Translational Medicine Experience: Her fellowship at GBRC (Glasgow) and AMC (Amsterdam) provided her valuable experience in translational medicine, bridging the gap between laboratory research and clinical application.
  4. COVID-19 Research Contributions: Dr. Shumnalieva has co-authored significant research papers in top-tier journals, contributing to global studies on COVID-19 and its impact on autoimmune diseases, which underscores her relevance in current medical challenges.
  5. Multidisciplinary Collaborations: Her publications involve multidisciplinary, international collaborations on critical topics such as coronary artery diseases in vasculitides, multimorbidity in inflammatory myopathies, and lung involvement in systemic sclerosis.
  6. Public Health and Patient Care: With a Master’s in Public Health, Dr. Shumnalieva also explores the correlation between risk factors and rheumatic diseases, adding a valuable population health perspective to her research.
  7. Publication Record: With a solid portfolio of peer-reviewed articles in highly respected journals like Rheumatology International and International Journal of Rheumatic Diseases, Dr. Shumnalieva’s research addresses critical issues like the effect of multimorbidity on quality of life and disease flares post-COVID-19 infection.

    Publication top notes

    Dr. Shumnalieva’s extensive research background, innovative approaches to rheumatology, and contributions to understanding the intersection of autoimmune diseases and COVID-19 make her a standout candidate for the Best Researcher Award.

     

 

 

Ivan Ivanov | Biomechanics | Quantitative Hypothesis Award

Ivan Ivanov | Biomechanics | Quantitative Hypothesis Award

Assoc Prof Dr Ivan Ivanov, National Sports Academy, Bulgaria

Based on the provided details, Assoc. Prof. Dr. Ivan Ivanov seems to be an excellent candidate for a “Quantitative Hypothesis Award” for several reasons:

Publication profile

Orcid

Research Focus and Contributions

Ivanov’s expertise in biomechanics, hemorheology, and sports science is evident through his extensive publications. His research, such as “Experimental Ultrasound Approach for Studying Knee Intra-Articular Femur–Tibia Movements under Different Loads,” showcases innovative techniques in biomechanics. His work on blood biomechanics in sports and diabetes biomarkers further illustrates his contribution to applied sciences.

Awards and Recognition

Ivanov has been recognized with multiple awards for young researchers, including the “Best Young Scientist” awards from the Institute of Mechanics in 2007 and 2014.

Teaching and Leadership

As the head of the Department of Anatomy and Biomechanics at the National Sports Academy, Ivanov combines teaching excellence with research leadership, guiding students and managing projects.

Collaborative Projects and International Exposure

His collaborations with international institutions, including the Czech Republic and the UK, highlight his dedication to advancing biomechanics globally.

With a strong publication record, innovative research methods, leadership, and international collaboration, Dr. Ivanov’s profile makes him a strong candidate for this award.

Publication top notes

 

 

Fabrizio Stefani | Engineering and Technology | Best Researcher Award

Fabrizio Stefani | Engineering and Technology | Best Researcher Award

Dr Fabrizio Stefani, University Of Genoa, Italy

Based on Dr. Fabrizio Stefani’s qualifications, he would indeed be a strong candidate for a Best Researcher Award. Here’s an evaluation of his accomplishments and how they align with such an award:

Publication Profile

Orcid

Research and Professional Experience

Dr. Stefani has over 16 years of experience as a full researcher at the University of Genoa. His focus areas include Machine Design, Structural Mechanics, Finite Element Analysis (FEA), and Tribology. His technical skills in finite element software development (FEMLub 123) for industrial applications demonstrate an ability to bridge theoretical research with real-world solutions, particularly in partnership with leading Italian companies like Ansaldo Energia and Fincantieri.

Scientific Contributions

Dr. Stefani has made substantial contributions to the field of mechanical engineering, as evidenced by his numerous publications, including those on torsional-lateral vibrations and stress analysis in large-deformation finite element methods. His work is published in reputable journals, such as Tribology International, Proceedings of the Institution of Mechanical Engineers, and Energies.

Teaching and Leadership

In addition to his research, Dr. Stefani has a long teaching history, covering a wide array of subjects such as Ship Drawing, Industrial Drawing, and Mechanical Design at both bachelor’s and master’s levels. His leadership extends to the coordination of research projects, highlighting his organizational competence and ability to mentor future engineers.

Peer Review and Recognition

His role as a reviewer for several prestigious journals like Tribology International and Scientific Reports underscores his recognition as a subject-matter expert. This also reflects his contributions to advancing research quality globally.

Technical Expertise

Beyond his academic work, Dr. Stefani has advanced programming skills across multiple platforms and languages, along with expertise in CAD tools like Creo and AutoCAD. His interdisciplinary knowledge, coupled with his innovative contributions, makes him highly deserving of a Best Researcher Award.

In conclusion, Dr. Stefani’s extensive research, practical applications, teaching, and leadership skills make him an exemplary candidate for the Best Researcher Award.

Publication top notes

Experimental and Numerical Analysis of Torsional—Lateral Vibrations in Drive Lines Supported by Hydrodynamic Journal Bearings

Masoud Mahdianpari | Environmental Science | Research Hypothesis Excellence Award

Masoud Mahdianpari | Environmental Science | Research Hypothesis Excellence Award

Dr Masoud Mahdianpari, Memorial University of Newfoundland/C-CORE, Canada

Based on the provided information, Dr. Masoud Mahdianpari is indeed a strong candidate for the Research for Research Hypothesis Excellence Award. His extensive educational background, professional experience, and contributions to the field of remote sensing and data science highlight his qualifications.

Publication profile

google scholar

Educational Background

Dr. Masoud Mahdianpari holds a Ph.D. in Electrical Engineering from Memorial University of Newfoundland (2015-2019), along with a Master’s in Remote Sensing Engineering and a Bachelor’s in Geomatics Engineering, both from the University of Tehran (2010-2013, 2006-2010). His robust academic foundation has equipped him with advanced knowledge in remote sensing and data analysis.

Professional Experience

Currently serving as a Cross-appointed Professor at Memorial University of Newfoundland and Remote Sensing Technical Lead at C-CORE, Ottawa, Dr. Mahdianpari has significant experience in applying machine learning and remote sensing technologies. His previous roles include Remote Sensing Scientist and Research Assistant at C-CORE, where he has developed expertise in image processing, feature extraction, and target detection.

Research Expertise

Dr. Mahdianpari specializes in machine learning, big data technologies, and radar remote sensing. His work encompasses high-resolution image processing, environmental monitoring, and GHG emission estimation. He is leading several projects focused on wetland mapping and methane emission estimation in the Arctic, leveraging advanced remote sensing data and cloud computing platforms.

Professional Appointments

As an associate editor for various journals, including IEEE Geoscience and Remote Sensing Letters and Frontiers in Environmental Science, Dr. Mahdianpari contributes to the academic community and promotes high-quality research. He is a member of several professional societies, such as IEEE and ASPRS, demonstrating his active engagement in the field.

Recent Honors and Awards

Dr. Mahdianpari has been recognized for his contributions to science, including being ranked in the top 1% of scientists worldwide (2023-2024) and receiving multiple awards for his research excellence. Notably, he has secured grants such as the NSERC Discovery Grant (2022-2027) and the Microsoft AI for Earth grant, highlighting his innovative work in environmental monitoring.

Project Leadership

Dr. Mahdianpari is currently leading the ESA Carbon Science Cluster project, aiming to enhance methane emission estimates from wetlands in the Arctic. This project underscores his leadership in addressing critical environmental challenges and advancing remote sensing methodologies.

Research Interests

His research focuses on environmental monitoring and wetland mapping using remote sensing data, emphasizing machine learning and multi-sensor image classification. Currently, he leads projects related to greenhouse gas (GHG) monitoring, showcasing his commitment to addressing pressing environmental issues.

Project Experience

He currently leads a project for the European Space Agency focused on improving methane emission estimates from wetlands, an initiative of significant environmental importance. This role emphasizes his leadership in research that impacts global environmental policies.

Publications and Presentations

Dr. Mahdianpari has authored numerous influential publications, including studies on remote sensing image classification and advanced machine learning applications in environmental monitoring. His research has contributed significantly to the field, evidenced by his citations and presentations at major international conferences.

Conference Contributions

He has presented at several prestigious conferences, showcasing his research on water quality monitoring and electrical potential preservation. His publications in leading journals further establish his reputation as a thought leader in remote sensing and environmental science.

Conclusion

In summary, Dr. Masoud Mahdianpari’s outstanding qualifications, research contributions, and recognition in the field make him a highly suitable candidate for the Research for Research Hypothesis Excellence Award. His dedication to advancing remote sensing technology and addressing pressing environmental issues through innovative research exemplifies excellence in academic and applied research.

Publication top notes

Google Earth Engine for geo-big data applications: A meta-analysis and systematic review

Support vector machine versus random forest for remote sensing image classification: A meta-analysis and systematic review

Very deep convolutional neural networks for complex land cover mapping using multispectral remote sensing imagery

Random forest wetland classification using ALOS-2 L-band, RADARSAT-2 C-band, and TerraSAR-X imagery

The first wetland inventory map of newfoundland at a spatial resolution of 10 m using sentinel-1 and sentinel-2 data on the google earth engine cloud computing platform

Deep convolutional neural network for complex wetland classification using optical remote sensing imagery

A new fully convolutional neural network for semantic segmentation of polarimetric SAR imagery in complex land cover ecosystem

Comparing deep learning and shallow learning for large-scale wetland classification in Alberta, Canada

A systematic review of landsat data for change detection applications: 50 years of monitoring the earth

Bagging and boosting ensemble classifiers for classification of multispectral, hyperspectral and PolSAR data: a comparative evaluation