192 research outputs found
Scalable Federated Learning for Clients with Different Input Image Sizes and Numbers of Output Categories
Federated learning is a privacy-preserving training method which consists of
training from a plurality of clients but without sharing their confidential
data. However, previous work on federated learning do not explore suitable
neural network architectures for clients with different input images sizes and
different numbers of output categories. In this paper, we propose an effective
federated learning method named ScalableFL, where the depths and widths of the
local models for each client are adjusted according to the clients' input image
size and the numbers of output categories. In addition, we provide a new bound
for the generalization gap of federated learning. In particular, this bound
helps to explain the effectiveness of our scalable neural network approach. We
demonstrate the effectiveness of ScalableFL in several heterogeneous client
settings for both image classification and object detection tasks.Comment: 15 pages, 1 figure, 2023 22nd International Conference on Machine
Learning and Applications (ICMLA
The Association of polymorphism in DNA BER genes OGG1, XRCC1, APE1 and MUTYH with the risk/clinical characteristics of myelodysplastic syndromes (MDS) in Japanese patients
Photoluminescence of ZnS:Mn Thin-film EL Device Active Layer : Influence of H_2 Gas in Sputtering Atomsphere
Effects of H_2 gas in Sputtering Ambient on Pulse Voltage Response of ZnS:Mn Electroluminescent Device
Retinal Endovascular Surgery with Tissue Plasminogen Activator Injection for Central Retinal Artery Occlusion
Purpose: To report 2 cases of central retinal artery occlusion (CRAO) who underwent retinal endovascular surgery with injection of tissue plasminogen activator (tPA) into the retinal artery and showed a remarkable improvement in visual acuity and retinal circulation. Methods: Standard 25-G vitrectomy was performed under local anesthesia. Simultaneously, tPA (80,000 units/mL) solution was injected into the retinal artery of the optic disc for 2–3 min using a microneedle. Changes in visual acuity, fundus photography, optical coherence tomography (OCT), fluorescein angiography, and laser speckle flowgraphy (LSFG) results were examined. Results: Both cases could be treated within 12 h after the onset of CRAO. Case 1 was a 47-year-old woman. Her visual acuity improved from counting fingers before operation to 0.08 logMAR 1 month after the surgery. However, thinning of the retina at the macula was observed by OCT. Case 2 was a 70-year-old man. His visual acuity improved from counting fingers to 0.1 logMAR 2 months after the surgery. Both fluorescein angiography and LSFG showed improvement in retinal circulation after the surgery in case 2. Conclusions: Retinal endovascular surgery with injection of tPA into the retinal artery was feasible and may be a way to improve visual acuity and retinal circulation when performed in the acute phase of CRAO
V-shaped dislocations in a GaN epitaxial layer on GaN substrate
In this study, V-shaped dislocations in a GaN epitaxial layer on a free-standing GaN substrate were observed. Our investigation further revealed that the V-shaped dislocations were newly generated at the interface in the epilayer rather than propagated from the GaN substrate. V-shaped dislocations consist of two straight parts. The straight parts of the V-shaped dislocations were separated from each other in the m-direction and tilted toward the step-flow direction of the GaN epitaxial layer. The V-shaped dislocations are continuous single dislocations having a Burgers vector component of 1a and an intrinsic stacking fault between their straight parts
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