18 research outputs found

    ChemInform Abstract: Thermolysis of Substituted 4H-1,3-Thiazines.

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    Histoire du Bas-Sassandra de 1893 à 1920 : les débuts de l'ère coloniale

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    Contient une table des matièresAvec mode text

    Novel triterpenes from alstonia boonei and anthocleista nobius

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    Two compounds were isolated from the ethyl ether extract of the barks of Alstonia boonei and Anthocelista rwbilis and identified as lanosta-7,24-dien-3-one and the acetate of the corresponding 3-hydroxy compounds on the basis of NMR studies. Bull. Chem. Soc. Ethiop. 1997, 11(2), 159-161.&nbsp

    Super-tokens Auto-encoders for image compression and reconstruction in IoT applications

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    New telecommunications networks are enabling powerful AI applications for smart cities and transport. These applications require real-time processing of large amounts of media data. Sending data to the cloud for processing is very difficult due to latency and energy constraints. Lossy compression can help, but traditional codecs may not provide enough quality or be efficient enough for resource-constrained devices. This paper proposes a new image compression and processing approach based on variational auto-encoders (VAEs). This VAE-based method aims to efficiently compress images while still allowing for high-quality reconstruction and object detection tasks. The encoder is designed to be lightweight and suitable for devices with limited computing power. The decoder is more complex and uses multi-level vector quantization to reconstruct high-resolution images. This approach allows for a simple encoder on edge devices and a powerful decoder on cloud servers. Key contributions include a low-complexity encoder, a new VAE model based on vector quantization, and a framework for using VAEs in IoT. The first experiments on reconstructed images on CelebA and ImageNet100 datasets show promising results in terms of MS-SSIM, PSNR, MSE and rFID compared to the literature and the ability of our approach to be used in IoT applications. Our approach presents results similar to complex algorithms like compression algorithms BPG in term of trade-off rate-distortion, and hierarchical auto-encoder (HQA) in terms of image reconstruction quality

    Projet d'institutionnalisation de l'approche écosanté : rapport final

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    A la faveur de l'appui technique et financier du Centre de recherches pour le développement international (CRDI) en mai 2007, l'approche écosystème et santé humaine a été expérimentée dans les universités et institutions supérieures de formation en Afrique de l'Ouest et du Centre. Le projet vise à intégrer l'approche écosanté dans les universités d'Abomey Calavi, de Ouagadougou, d'Abobo Adjamè, de Cocody, l'Institut International de l'Eau et de l'Environnement (2iE) et l'Ecole Nationale Supérieure Polytechnique de Yaoundé. De façon spécifique, il s'agit : - D'intégrer le module écosanté dans des programmes de formation identifiés ou existants ; - Promouvoir la recherche en EcoSanté au niveau des étudiants de ces programmes et de leurs enseignants ; - Pérenniser le processus grâce à la mise en place des mécanismes viables de bonne gouvernance et de mobilisation de ressources financières complémentaires..
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