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3,075 results on '"Mahmood, Tariq"'

2. Hierarchical Text-to-Vision Self Supervised Alignment for Improved Histopathology Representation Learning

Author

Watawana, Hasindri, Ranasinghe, Kanchana, Mahmood, Tariq, Naseer, Muzammal, Khan, Salman, and Khan, Fahad Shahbaz

Subjects
Computer Science - Computer Vision and Pattern Recognition
Abstract

Self-supervised representation learning has been highly promising for histopathology image analysis with numerous approaches leveraging their patient-slide-patch hierarchy to learn better representations. In this paper, we explore how the combination of domain specific natural language information with such hierarchical visual representations can benefit rich representation learning for medical image tasks. Building on automated language description generation for features visible in histopathology images, we present a novel language-tied self-supervised learning framework, Hierarchical Language-tied Self-Supervision (HLSS) for histopathology images. We explore contrastive objectives and granular language description based text alignment at multiple hierarchies to inject language modality information into the visual representations. Our resulting model achieves state-of-the-art performance on two medical imaging benchmarks, OpenSRH and TCGA datasets. Our framework also provides better interpretability with our language aligned representation space. Code is available at https://github.com/Hasindri/HLSS., Comment: 13 pages and 5 figures

Published
2024

32. Mg-doped LaAl[O.sub.3] structure: a theoretical investigation of indirect to direct bandgap and brittle to ductile transition

Author

Zahoor, Aliza, Mahmood, Tariq, and Khan, Muhammad Isa

Subjects
Perovskite -- Mechanical properties -- Electric properties -- Optical properties, Lanthanum -- Mechanical properties -- Electric properties -- Optical properties, Density functionals -- Usage, Semiconductor doping -- Usage, Magnesium -- Usage, Aluminum oxide -- Mechanical properties -- Electric properties -- Optical properties, Physics
Abstract

Integrating chemical dopants into a pure lattice has fueled a novel concept of tuning the physical and chemical properties of existing materials under and beyond ambient conditions. By using density functional theory (DFT) calculations, we report the structural, electronic, elastic, and optical properties of pure and Mg-doped LaAl[O.sub.3] structure ([La.sub.1- x][Mg.sub.x]Al[O.sub.3] and La[Al.sub.1-x][Mg.sub.x][O.sub.3]), respectively, with the doping concentrations of x = 0%, 20%, 40%, 60%, 80%, and 100%. Our results show that the doping of Mg along La sites introduce new band (s, p) in the valence bands that is moved towards the conduction bands with increase of doping ration (at x = 60% with a reduced bandgap of 0.04 eV), as well as indirect to direct bandgap transition along Al sites. The density of states shows that the valence band shifts towards the Fermi level by inducing a metallicity in [La.sub.1- x][Mg.sub.x]Al[O.sub.3] format at 60% configuration. Elastically, LaAl[O.sub.3] experiences brittle to ductile transition for both doping systems except La[Al.sub.1-x][Mg.sub.x][O.sub.3] at 40% configuration. The higher ranges of optical peaks for both systems are identified for 0%-40% ranges as compared to other configurations. Fortunately, this study reveals the tunability of LaAl[O.sub.3] structure in structural, electronic, elastic, and optical aspects, and also extends the availability of this material for future optoelectronic and mechanical applications. Key words: doping, band gap, density of states, valence band, Fermi level, 1. Introduction The accelerating depletion of sustainable energy sources caused by the rapid consumption of fossil fuels has alarmed modern societies to explore highly efficient, versatile, and eco-friendly energy sources [...]

Published
2023
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36. Mechanisms and management of loss of response to anti-TNF therapy for patients with Crohn's disease: 3-year data from the prospective, multicentre PANTS cohort study

Author

Patel, Vinod, Mazhar, Zia, Saich, Rebecca, Colleypriest, Ben, Tham, Tony C, Iqbal, Tariq, Kaushik, Vishal, Murugesan, Senthil, Singh, Salil, Weaver, Sean, Preston, Cathryn, Butt, Assad, Smith, Melissa, Basude, Dharamveer, Beale, Amanda, Langlands, Sarah, Direkze, Natalie, Parkes, Miles, Torrente, Franco, De La Revella Negro, Juan, MacDonald, Chris Ewen, Evans, Stephen M, Gunasekera, Anton VJ, Thakur, Alka, Elphick, David, Shenoy, Achuth, Nwokolo, Chuka U, Dhar, Anjan, Cole, Andrew T, Agrawal, Anurag, Bridger, Stephen, Doherty, Julie, Cooper, Sheldon C, de Silva, Shanika, Mowat, Craig, Mayhead, Phillip, Lees, Charlie, Jones, Gareth, Ahmad, Tariq, Hart, James W, Kennedy, Nicholas A, Goodhand, James R, Lin, Simeng, Chanchlani, Neil, Nice, Rachel, McDonald, Timothy J, Bewshea, Claire, Al-Nuaimi, Yusur, Richards, Ellen, Haigh, Richard, Greenish, Huw, Heath, Harry, Gaya, Daniel R, Russell, Richard K, Gervais, Lisa, Dunckley, Paul, Mahmood, Tariq, Banim, Paul JR, Sonwalkar, Sunil, Ghosh, Deb, Phillips, Rosemary H, Azaz, Amer, Sebastian, Shaji, Shenderey, Richard, Armstrong, Lawrence, Bell, Claire, Hariraj, Radhakrishnan, Matthews, Helen, Jafferbhoy, Hasnain, Selinger, Christian P, Zamvar, Veena, De Caestecker, John S, Willmott, Anne, Miller, Richard, Babu, Palani Sathish, Tzivinikos, Christos, Bloom, Stuart L, Chung-Faye, Guy, Croft, Nicholas M, Fell, John ME, Harbord, Marcus, Hart, Ailsa, Hope, Ben, Irving, Peter M, Lindsay, James O, Mawdsley, Joel E, McNair, Alistair, Monahan, Kevin J, Murray, Charles D, Orchard, Timothy, Paul, Thankam, Pollok, Richard, Shah, Neil, Bouri, Sonia, Johnson, Matt W, Modi, Anita, Kabiru, Kasamu Dawa, Baburajan, B K, Bhaduri, Bim, Fagbemi, Andrew Adebayo, Levison, Scott, Limdi, Jimmy K, Watts, Gill, Foley, Stephen, Ramadas, Arvind, MacFaul, George, Mansfield, John, Grellier, Leonie, Morris, Mary-Anne, Tremelling, Mark, Hawkey, Chris, Kirkham, Sian, Charlton, Charles PJ, Rodrigues, Astor, Simmons, Alison, Lewis, Stephen J, Snook, Jonathon, Tighe, Mark, Goggin, Patrick M, De Silva, Aminda N, Lal, Simon, Smith, Mark S, Panter, Simon, Cummings, JR Fraser, Dharmisari, Suranga, Carter, Martyn, Watts, David, Mahmood, Zahid, McLain, Bruce, Sen, Sandip, Pigott, Anna J, Hobday, David, Wesley, Emma, Johnston, Richard, Edwards, Cathryn, Beckly, John, Vani, Deven, Ramakrishnan, Subramaniam, Chaudhary, Rakesh, Trudgill, Nigel J, Cooney, Rachel, Bell, Andy, Prasad, Neeraj, Gordon, John N, Brookes, Matthew J, Li, Andy, Gore, Stephen, Hamilton, Benjamin, Thomas, Amanda, Smith, Rebecca, Roberts, Christopher, Bishara, Maria, and Lees, Charlie W

Published
2024
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46. How Genome Editing Can Be Helpful in the Biofortification of Legumes

Author

Ullah, Zakir, Iqbal, Javed, Abbasi, Banzeer Ahsan, Ijaz, Shumaila, Sharifi-Rad, Javad, Yaseen, Tabassum, Uddin, Siraj, Mahmood, Tariq, Nadeem, Muhammad Azhar, editor, Baloch, Faheem Shehzad, editor, Fiaz, Sajid, editor, Aasim, Muhammad, editor, Habyarimana, Ephrem, editor, Sönmez, Osman, editor, and Zencirci, Nusret, editor

Published
2023
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47. A Fundus Image Myopia Diagnosis Model Based on Homogeneous Multimodal Feature Fusion

Author

Wen, Peng- Ceng, Guan, Yu, Li, Jian- Qiang, Mahmood, Tariq, Zhao, Yin-Zheng, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Hung, Jason C., editor, Yen, Neil Y., editor, and Chang, Jia-Wei, editor

Published
2023
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