Search Results - yezhou+yang

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Attributing Image Generative Models Using Latent Fingerprints
Background Artificial intelligence (AI) image generation has opened up endless possibilities for creativity, allowing architects, designers, and artists to produce visual models rapidly. However, this technology is responsible for creating deepfakes, which are highly realistic but fake images and videos. Deepfakes can be used to spread misinformation,...
Published: 10/4/2024   |   Inventor(s): Guangyu Nie, Changhoon Kim, Yezhou Yang, Yi Ren
Keywords(s):  
Category(s): Physical Science, Wireless & Networking, Intelligence & Security, Artificial Intelligence/Machine Learning
Steric Hindrance Effect of Additives for Tuning the Perovskite Crystal Orientation (Case No. 2024-023)
Summary: UCLA Researchers in the Department of Materials Science and Engineering have developed a method to tune perovskite crystal orientation for increased performance, energy efficiency, and reduced material defect with a variety of field applications, including solar cells and LEDs. Background: Perovskite holds considerable promise as a highly...
Published: 10/25/2024   |   Inventor(s): Yang Yang, Chunqing Ma, Haoxiang Duan, Dong Meng
Keywords(s): Energy Efficiency, energy-efficient, Imaging, Liquid-Crystal Display, Nanocrystal, OLED, Optoelectronics, organic photo detector, organic photovoltaics, perovskite, perovskite devices, perovskite solar cell, photodetection, Solar Cell, X-ray detectors
Category(s): Chemical > Chemical Processing & Manufacturing, Energy & Environment > Energy Efficiency, Energy & Environment, Materials > Composite Materials, Optics & Photonics, Optics & Photonics > Fiber Optics, Materials > Functional Materials
Optically gated field emission cathodes
VALUE PROPOSITION Electron beam-based devices are critical to applications such as particle accelerators, high-power electromagnetic sources ranging from microwave to X-rays, vacuum electronic devices, e-beam lithography, electron microscopy, space-vehicle neutralization and emerging vacuum nanodevices. They are key elements in telecommunication systems,...
Published: 9/12/2024   |   Inventor(s): Peng Zhang, Lan Jin, Yang Zhou
Keywords(s):  
Category(s): Electrical
2023-087 Thiophene Configurable Amorphous Small Molecular Hole Transporting Material for Efficient and Stable Perovskite Solar Cell
Summary: UCLA researchers in the Department of Materials Science and Engineering have invented a series of hole transporting materials that have enabled among the highest recorded power conversion efficiencies for perovskite solar cells while maintaining high device stability and low cost. Background: Perovskite solar cells (PSCs) are an emerging...
Published: 6/25/2024   |   Inventor(s): Yang Yang, Dong Meng
Keywords(s): buffer layer, charge collection, charge collection efficiency, charge extraction, charge-transfer, device architectures, device stability, hole transporting material, hydrophobicity, interfacial layer, ion-migration, n-i-p device, perovskite, Perovskite Lead(II) Iodide, perovskite solar cell, photostability, p-i-n device, power conversion efficiency, radiosurgery, Silicon Working Electrode Perovskite (Structure), spinal surgery, thermal stability
Category(s): Chemical, Electrical, Energy & Environment > Energy Generation > Solar, Materials, Materials > Functional Materials, Electrical > Electronics & Semiconductors
Implementing Improved Diversity Using Adversarially Learned Transformations for Domain Generalization
Machine learning models and neural networks in particular can be used in the field of image processing. Machine learning models are trained to better improve their output quality. During training, domain generalization is the problem of making accurate predictions on previously unseen domains, especially when these domains are very different from...
Published: 2/12/2024   |   Inventor(s): Tejas Gokhale, Rushil Anirudh, Jayaraman Thiagarajan, Bhavya Kailkhura, Chitta Baral, Yezhou Yang
Keywords(s): Algorithm Development, Imaging, Machine Learning, Neural Computing, PS-Computing and Information Technology
Category(s): Computing & Information Technology, Physical Science
Road Traffic Scene Reconstruction from Aerial Video
Conventional methods used for reconstructing road traffic scenes often rely on fixed sensors and cameras entrenched within road infrastructure. However, these approaches grapple with substantial limitations in terms of scope, cost-efficiency, and safeguarding individual privacy. The need to fortify road safety, strengthen urban planning initiatives,...
Published: 1/17/2024   |   Inventor(s): Duo Lu, Yezhou Yang
Keywords(s): Algorithm Development, Imaging, Modeling, PS-Computing and Information Technology, Target identification, Transportation
Category(s): Computing & Information Technology, Imaging, Physical Science
Identify Targeted Attacks on Deep RL-Based Autonomous Driving
In the rapidly advancing landscape of deep reinforcement learning (RL), recent studies have highlighted vulnerabilities in control policies learned through deep RL. These vulnerabilities raise concerns surrounding adversarial attacks, especially in risk-sensitive domains such as autonomous driving. In these scenarios, the learned policies become susceptible...
Published: 12/5/2023   |   Inventor(s): Prasanth Buddareddygari, Travis Zhang, Yezhou Yang, Yi Ren
Keywords(s): Algorithm Development, Automotive, Cyber Security, Detection, Machine Learning, PS-Computing and Information Technology
Category(s): Computing & Information Technology, Intelligence & Security, Physical Science
New Small Molecules for Stable and Efficient Organic Photovoltaics (UCLA Case No. 2023-086)
Summary: UCLA researchers in the Department of Materials Science and Engineering have developed a novel molecule for organic photovoltaics, photodetectors, organic field effect transistors, and other relevant applications. Background: Among all competing photovoltaic technologies, the organic photovoltaics (OPVs) market is likely to grow the fastest,...
Published: 12/8/2023   |   Inventor(s): Yang Yang, Dong Meng
Keywords(s): Concentrated Solar Power, Concentrated Solar Power Chemical Engineering, energy conversion, energy conversion applications, energy recycle, interfacial layer, Methods Of Detecting Extrasolar Planets, multi-junction tandem devices, near-infrared, organic field effect transistors, organic photo detector, organic photovoltaics, Organic Solar Cell, perovskite devices, perovskite solar cell, Polymer Solar Cell, rganic light-emitting diodes, Solar Cell, Solar Cell Metamaterial, Solar Cell Molecular Electronics, Solar Energy, Thin Film Solar Cell, transparent OPVs, ultra-narrow bandgap
Category(s): Electrical, Electrical > Electronics & Semiconductors, Materials > Functional Materials, Energy & Environment > Energy Generation > Solar
2022-216 Electrode for Rechargeable Batteries that Resists Dendrite Growth
Summary: UCLA researchers in the Department of Material Science and Engineering have developed electrodes for rechargeable batteries which resist dendrite growth. Background: Rechargeable batteries have attracted attention due to their wide array of applications and environmental benefits. Rechargeable metal-ion batteries, such as lithium-ion batteries,...
Published: 11/15/2024   |   Inventor(s): Yang Yang, Xiaochun Li
Keywords(s): Alloy, Dendrite, Electrode, Lithium Battery, Lithium-Ion Battery, Nanoelectronics, Nanoparticle, Rechargeable Battery, Rechargeable Battery Thermal Conductivity
Category(s): Materials > Semiconducting Materials, Energy & Environment > Energy Efficiency, Energy & Environment > Energy Storage, Electrical > Electronics & Semiconductors, Energy & Environment > Energy Storage > Batteries
Decentralized Attribution of Generative Models
­Background Growing applications of generative models have led to new threats such as malicious personation and digital copyright infringement. One solution to these threats is model attribution, i.e., the identification of user-end models where the contents under question are generated from. Existing studies showed empirical feasibility of attribution...
Published: 2/23/2023   |   Inventor(s): Yezhou Yang, Changhoon Kim, Yi Ren
Keywords(s): Security
Category(s): Physical Science, Computing & Information Technology, Intelligence & Security
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