1,721,312 research outputs found
Introduction: towards a reassessment of food deprivation in Africa
No full textWhy do images and reports of starving and malnourished Africans pop up so often in the media? What are the actual dimensions of the problem? What has trade and climate got to do with it? These are among the questions this book seeks to answer, in an effort to explain why Africa struggles with food availability and stability that are the essential pillars of food security, and what can be done about it. The intersection between trade and agriculture policies and a changing climate is fundamental to the enquiry. This introductory chapter to How Africa Eats sets out the scale of the problem, how to define, measure and monitor food deprivation and hunger and the challenges of the food system, and outlines the research focus of the book
Samsara
No full textSamsara is a reverse communication nonlinear optimization solver for smooth unconstrained objectives. The library functions as an oracle that suggests a step (direction and length) using previous information provided to it by the calling routine. It does not execute function evaluations or gradient calculations, but it does build a model of the function being optimized, based on the steps, gradients and function values (if available) passed to it by the user. Fortran, Matlab, and Python implementations are available in the compressed-tar-file
Talking with the spirits: Ethnographies from between the worlds [Introduction]
No full textIntroduction to edited book
ProxToolbox
No full textA toolbox of algorithms and projection operators for implementing fixed point iterations based on the Prox operato
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