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381 results on '"Li, Si-Jia"'

2. MCAD: Multi-teacher Cross-modal Alignment Distillation for efficient image-text retrieval

Author

Lei, Youbo, He, Feifei, Chen, Chen, Mo, Yingbin, Li, Si Jia, Xie, Defeng, and Lu, Haonan

Subjects
Computer Science - Computer Vision and Pattern Recognition, Computer Science - Artificial Intelligence
Abstract

Due to the success of large-scale visual-language pretraining (VLP) models and the widespread use of image-text retrieval in industry areas, it is now critically necessary to reduce the model size and streamline their mobile-device deployment. Single- and dual-stream model structures are commonly used in image-text retrieval with the goal of closing the semantic gap between textual and visual modalities. While single-stream models use deep feature fusion to achieve more accurate cross-model alignment, dual-stream models are better at offline indexing and fast inference.We propose a Multi-teacher Cross-modality Alignment Distillation (MCAD) technique to integrate the advantages of single- and dual-stream models. By incorporating the fused single-stream features into the image and text features of the dual-stream model, we formulate new modified teacher similarity distributions and features. Then, we conduct both distribution and feature distillation to boost the capability of the student dual-stream model, achieving high retrieval performance without increasing inference complexity.Extensive experiments demonstrate the remarkable performance and high efficiency of MCAD on image-text retrieval tasks. Furthermore, we implement a lightweight CLIP model on Snapdragon/Dimensity chips with only $\sim$100M running memory and $\sim$8.0ms search latency, achieving the mobile-device application of VLP models., Comment: Accepted by NAACL 2024 Findings

Published
2023

19. Intelligent metasurface with frequency recognition for adaptive manipulation of electromagnetic wave

Author

Wang Hai Peng, Li Yun Bo, Li He, Shen Jia Lin, Dong Shu Yue, Wang Shi Yu, Qi Kai Nan, Ma Qian, Jin Shi, Li Si Jia, and Cui Tie Jun

Subjects
adaptive intelligent metasurface, control of spatial electromagnetic wave, customized multifunction, frequency recognition, Physics, QC1-999
Abstract

Due to the strong ability of recognizing electromagnetic (EM) environment and adaptively control of EM waves, the intelligent metasurfaces have received great attention recently. However, the intelligent metasurface with frequency recognition for adaptive manipulation of the EM waves has not been studied. Here, we propose a frequency-recognition intelligent metasurface to precisely control the spatial EM waves under the agile frequencies with the help of a real-time radio-frequency sensor and an adaptive feedback control system. An active meta-atom is presented to reach 2 bit phase coding and 1 bit amplitude coding capacities to control the amplitude and phase independently. Experimental results demonstrate that the metasurface can recognize different frequency of the incoming wave with very high resolution, and can adaptively realize the self-defined multiple frequency agilities to manipulate the reflected EM waves without any human participation. As example, the intelligent metasurface with frequency recognition can adaptively operate wave absorption at 5.36 GHz, reflection to normal direction at 5.38 GHz, deflection to −30° at 5.40 GHz, random diffusion at 5.42 GHz, and deflection to +33° at 5.44 GHz by detecting the incoming frequency at the resolution of 0.02 GHz.

Published
2022
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42. Multidimensional Outcomes of IV Thrombolysis in Minor Ischemic Stroke: Motor, Psychocognitive, and Dependence

Author

Li,Ning, Zhang,Jia, Li,Si-Jia, Du,Yang, Zhou,Qi, Gu,Hong-Qiu, Zhao,Xing-Quan, Li,Ning, Zhang,Jia, Li,Si-Jia, Du,Yang, Zhou,Qi, Gu,Hong-Qiu, and Zhao,Xing-Quan

Abstract

Ning Li,1 Jia Zhang,1,2 Si-Jia Li,1 Yang Du,1,2 Qi Zhou,2 Hong-Qiu Gu,2 Xing-Quan Zhao1– 3 1Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, People’s Republic of China; 2China National Clinical Research Center for Neurological Diseases, Beijing, People’s Republic of China; 3Research Unit of Artificial Intelligence in Cerebrovascular Disease, Chinese Academy of Medical Sciences, Beijing, People’s Republic of ChinaCorrespondence: Xing-Quan Zhao, Beijing Tiantan Hospital, Capital Medical University, No. 119 South 4th Ring West Road, Fengtai District, Beijing, 100070, People’s Republic of China, Tel +86-13501031486, Email zxq@vip.163.comBackground: The presence of mild deficit is the most common reason for nonuse of intravenous alteplase in ischemic stroke. We analyzed within a national prospective cohort on whether patients with minor stroke can benefit from intravenous alteplase.Methods: This observational study included patients with acute ischemic stroke with a National Institutes of Health Stroke Scale (NIHSS) score 0 to 5 at admission. The short-term outcomes at discharge and 3-month were analyzed including the modified Rankin Scale score, gait speed, Montreal Cognitive Assessment, Patient Health Questionnaire-9, General Anxiety Disorder-7 and Stroke Impact Scale-16. Multivariate regression models were performed to evaluate the association between intravenous thrombolysis and clinical outcomes.Results: A total of 1876 consecutive patients were included in the current analyses with 102 patients (5.4%) received alteplase and 1774 patients (94.5%) were in non-alteplase group. We found that 10.9% patients presented unfavorable functional outcome with a mRS ≥ 2 at 3-month. Patients with alteplase treatment had a more favorable outcome in SIS-16 at discharge (OR, 5.45; 95% CI, 2.22– 8.68) and 3-month after stroke (OR, 2.34; 95% CI, 0.17– 4.50). There was an association of alteplase with better gait speed in the rest

Published
2023

45. Crosstalk between PML and p53 in response to TGF-β1: A new mechanism of cardiac fibroblast activation

Author

Huang, Di, primary, Zhao, Dan, additional, Li, Ming, additional, Chang, Si-Yu, additional, Xue, Ya-Dong, additional, Xu, Ning, additional, Li, Si-Jia, additional, Tang, Nan-Nan, additional, Gong, Li-Ling, additional, Liu, Yi-Ning, additional, Yu, Hang, additional, Li, Qing-Sui, additional, Li, Peng-Yu, additional, Liu, Jia-Li, additional, Chen, Hai-Xin, additional, Liu, Ming-Bin, additional, Zhang, Wan-Yu, additional, Zhao, Xing-Miao, additional, Lang, Xian-Zhi, additional, Li, Zhen-Dong, additional, Liu, Yu, additional, Ma, Zhi-Yong, additional, Li, Jia-Min, additional, Wang, Ning, additional, Tian, Hai, additional, and Cai, Ben-Zhi, additional

Published
2023
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