Weakly-Supervised Text-driven Contrastive Learning for Facial Behavior Understanding

Posted by klaurent Berkeley

Kavli Affiliate: Xiang Zhang | First 5 Authors: Xiang Zhang, Taoyue Wang, Xiaotian Li, Huiyuan Yang, Lijun Yin | Summary: Contrastive learning has shown promising potential for learning robust representations by utilizing unlabeled data. However, constructing effective positive-negative pairs for contrastive learning on facial behavior datasets remains challenging. This is because such pairs inevitably encode […]


Continue.. Weakly-Supervised Text-driven Contrastive Learning for Facial Behavior Understanding

Weakly-Supervised Text-driven Contrastive Learning for Facial Behavior Understanding

Posted by klaurent Berkeley

Kavli Affiliate: Xiang Zhang | First 5 Authors: Xiang Zhang, Taoyue Wang, Xiaotian Li, Huiyuan Yang, Lijun Yin | Summary: Contrastive learning has shown promising potential for learning robust representations by utilizing unlabeled data. However, constructing effective positive-negative pairs for contrastive learning on facial behavior datasets remains challenging. This is because such pairs inevitably encode […]


Continue.. Weakly-Supervised Text-driven Contrastive Learning for Facial Behavior Understanding

A large area 100 channel Picosec Micromegas detector with sub 20 ps time resolution

Posted by klaurent UCAS

Kavli Affiliate: Yi Zhou | First 5 Authors: Antonija Utrobicic, Yannis Angelis, Stephan Aune, Jonathan Bortfeldt, Florian Brunbauer | Summary: The PICOSEC Micromegas precise timing detector is based on a Cherenkov radiator coupled to a semi-transparent photocathode and a Micromegas amplification structure. The first proof of concept single-channel small area prototype was able to achieve […]


Continue.. A large area 100 channel Picosec Micromegas detector with sub 20 ps time resolution

Cosmological evolution of Witten superconducting string networks

Posted by klaurent Cambridge

Kavli Affiliate: E. P. S. Shellard | Summary:We consider the evolution of current-carrying cosmic string networks described by the charge-velocity-dependent one scale (CVOS) model beyond the linear equation of state regime, specifically focusing on the Witten superconducting model. We find that, generically, for almost chiral currents, the network evolution reduces dynamically to that of the […]


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Towards robust PICOSEC Micromegas precise timing detectors

Posted by klaurent UCAS

Kavli Affiliate: Yi Zhou | First 5 Authors: Marta Lisowska, Yannis Angelis, Stephan Aune, Jonathan Bortfeldt, Florian Brunbauer | Summary: The PICOSEC Micromegas (MM) detector is a precise timing gaseous detector consisting of a Cherenkov radiator combined with a photocathode and a MM amplifying structure. A 100-channel non-resistive PICOSEC MM prototype with 10×10 cm^2 active […]


Continue.. Towards robust PICOSEC Micromegas precise timing detectors