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Dianxin kexue随着人工智能（artificial intelligence，AI）的兴起，大模型（large language model，LLM）日益成为知识推介和多轮对话的核心技术。伴随而来，AI大模型在数据处理、模型训练和部署过程中的高能耗问题亟须有效评估，以便在模型优化后进行前后量化对比。提出一种AI大模型能耗的评估方法，旨在量化评估AI模型的服务效率（efficiency，E）。该模型使用训练收敛时间（time，T）、模型参数规模（parameter，P）和浮点运算量（floating-point ...
马晓亮， 刘英， 赵汝强， 杨邦兴， 高洁， 邓从健
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Extended Dynamic Nelson-Siegel Model with Human Factor and Its Application in Predicting Exchange Rate [PDF]
, 2016 随着越来越多的发达国家步入人口老龄化社会，学者们愈发关注人口结构与资产价格的关系（如利率和人口结构之间的关系）。依据人口结构变化能够显著影响利率的理论基础，本文从统计模型的角度提出了基于人口因子的动态Nelson-Siegel扩展模型，并对美国、加拿大等几个国家的国债收益率曲线进行建模，比较两模型的样本内拟合的RMSE和MAE及模型在递归预测和滚动预测下的样本外预测能力。与原始动态Nelson-Siegel模型比较，该模型在样本内拟合效果和样本外预测效果均占优于原始模型，且基于人口因子的动态Nelson-
郑桂凤
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Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Decomposition is the transformation of dead organic matter into its inorganic constituents. In most biomes, decomposition rates can be accurately predicted with simple mathematical models, but these models have long under‐predicted decomposition in globally extensive ...
Heather L. Throop +8 more
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Dianci bileiqi, 2013 国内外学者对电流波头时间在0.545μs下的避雷器模型进行了大量试验和仿真研究,提出了多种反映MOA陡波下动态性能的电气模型的等值电路。本文详细论述以下几种典型模型:非线性电阻模型,IEEE推荐的模型,PINCETI模型（简化的IEEE模型）及非线性电感模型等,讨论模型相应的参数确定方法。其中,PINCETI模型没有考虑电容,非线性电感模型在学术界仍存在争议且适用范围狭小。对于模型的仿真值和实测值进行比较后得出:标准雷电流波作用下,非线性电阻模型和IEEE推荐的模型均具有较高的计算精度,仿真计算结果表明,
陈洁 +5 more
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Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Root exudates play a key role as signals and nutrients in mediating plant–microbe communication. However, critical knowledge gaps remain regarding how root exudates mediate soil–microbe–plant interactions to regulate crop yield under long‐term straw mulching combined ...
Jiajie Song +7 more
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The establishment of new organ transplant models for immune rejection and the exploration of the mechanisms of transplantation immunity [PDF]
, 2015 目的：建立两种新型的器官移植排斥反应模型，即树鼩异种心脏移植模型以及使用套管法建立新型小鼠主动脉移植模型，并分别对这两种器官移植模型中的异种移植免疫排斥机制和慢性排斥反应机制进行初步探索。 方法：1.采用腹部异位心脏移植的方法建立树鼩到SD大鼠，SD大鼠到树鼩的异种心脏移植模型，对比树鼩与大鼠的解剖数据，分析模型的可行性，观察移植心脏的生存期及病理变化，观察模型的免疫排斥反应类型，进行免疫组化、微量淋巴毒实验、混合淋巴实验以进行机制的初步探讨。2.利用套管法将供体BALB ...
伍源
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Looking at Us Through Their Eyes. The Analytical Process from Ethnographic Perspectives1
Journal of Analytical Psychology, EarlyView.Abstract This article looks at the analytical situation through the Others’ eyes—through examples from contemporary ethnographies of foreign cultures. It discusses the following issues: a) The analogy between the ontological worlds of the dead, ghosts, animals and dreams in “primitive populations” and the analytical psychological descriptions of the ...
Stefano Carta
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When and why to give shorebirds a head start
Conservation Biology, EarlyView.Abstract Headstarting is a translocation technique involving the hatching or rearing of wild eggs or young in captivity and the release of those individuals back to the wild at or before independence. It has been trialed as a conservation intervention for shorebirds over recent decades to improve the population trend of target populations by increasing
Lynda Donaldson +4 more
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Shuitu Baochi Xuebao, 1995 分析了流域系统的基本要素及其关系，提出了持续发展下的流域治理规划的程序和模型，该模型包括资源开发模型、人口模型和环境治理与保护模型。
齐实 孙保平
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Shuitu Baochi Xuebao, 2002 阐述国内外坡面土壤水蚀建模发展历程,然后分别论述经验模型、概念模型、物理模型以及水蚀遥感信息模型的发展历程,最后比较各类模型优缺点。
沈大勇 马蔼乃 毛善君 杨萍
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