Results 1 to 10 of about 1,369,002 (149)
Gradientes latitudinales de diversidad inversos, ¿excepciones que prueban la regla?
Ecosistemas, 2014 La mayoría de grupos taxonómicos siguen un Gradiente Latitudinal de Diversidad y son más diversos cuanto más nos acercamos a los trópicos. Sin embargo, existen notables excepciones a este patrón capaces de proporcionar información adicional acerca de los
Ignacio Morales Castilla +1 more
doaj +2 more sources
Anales del Instituto de la Patagonia, 2021 La Reserva de Biosfera Cabo de Hornos (RBCH) alberga una biodiversidad y tipos de ecosistemas únicos a nivel mundial. Éstos han sido mucho menos estudiados que sus homólogos, los ecosistemas subpolares del hemisferio norte. El objetivo de este trabajo es
Francisco Aguirre +8 more
semanticscholar +1 more source
Automatic Prompt Optimization with "Gradient Descent" and Beam Search [PDF]
Conference on Empirical Methods in Natural Language Processing, 2023 Large Language Models (LLMs) have shown impressive performance as general purpose agents, but their abilities remain highly dependent on prompts which are hand written with onerous trial-and-error effort. We propose a simple and nonparametric solution to
Reid Pryzant +5 more
semanticscholar +1 more source
Transformers learn in-context by gradient descent [PDF]
International Conference on Machine Learning, 2022 At present, the mechanisms of in-context learning in Transformers are not well understood and remain mostly an intuition. In this paper, we suggest that training Transformers on auto-regressive objectives is closely related to gradient-based meta ...
Johannes von Oswald +6 more
semanticscholar +1 more source
Balanced Multimodal Learning via On-the-fly Gradient Modulation [PDF]
Computer Vision and Pattern Recognition, 2022 Multimodal learning helps to comprehensively understand the world, by integrating different senses. Accordingly, multiple input modalities are expected to boost model performance, but we actually find that they are not fully exploited even when the ...
Xiaokang Peng +4 more
semanticscholar +1 more source
Prompt-aligned Gradient for Prompt Tuning [PDF]
IEEE International Conference on Computer Vision, 2022 Thanks to the large pre-trained vision-language models (VLMs) like CLIP [37], we can craft a zero-shot classifier by discrete prompt design, e.g., the confidence score of an image being "[CLASS]" can be obtained by using the VLM provided similarity ...
Bei-Er Zhu +4 more
semanticscholar +1 more source
Gradient-enhanced physics-informed neural networks for forward and inverse PDE problems [PDF]
Computer Methods in Applied Mechanics and Engineering, 2021 Deep learning has been shown to be an effective tool in solving partial differential equations (PDEs) through physics-informed neural networks (PINNs). PINNs embed the PDE residual into the loss function of the neural network, and have been successfully ...
J. Yu, Lu Lu, Xuhui Meng, G. Karniadakis
semanticscholar +1 more source
Geofísica Internacional, 2009 El presente trabajo estudia la distribución espacial de los rayos cósmicos galácticos en la heliosfera durante el máximo solar de los ciclos 21, 22 y 23, usando un modelo en una dimensión y sin choque de la ecuación de transporte de la radiación cósmica.
O. G. Morales-Olivares +1 more
doaj +1 more source
Gradientes de velocidad en la Corteza y Manto Superior de las islas Baleares (Mar Mediterráneo)
Geofísica Internacional, 1980 En este trabajo se presenta un estudio de amplitudes para las ondas refractadas en el basamento y manto superior a partir de datos de perfiles sísmicos realizados en las islas Baleares durante el año 1976.
D. Cordoba, E. Banda
doaj +1 more source
Nativa, 2016 A variação de altitude e a proximidade de corpos hídricos influenciam a composição e estrutura de assembleias de palmeiras na Amazônia. O presente estudo teve como objetivo compreender os efeitos desses gradientes ambientais na composição florística e ...
Jefferson Peixoto Gomes +6 more
semanticscholar +1 more source