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Forest regeneration within Earth system models: current process representations and ways forward
arth system models forestregeneration reproductive allocation treerecruitment vegetation demographic models vegetation dynamics
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2023/11/30
Earth system models must predict forest responses to global change in order to simulate future global climate, hydrology, and ecosystem dynamics. These models are increasingly adopting vegetation demo...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：2-representations and 2-vector bundles
2 向量丛 群论
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2023/4/13
In this talk I will introduce some basic concepts in higher category and some details of the construction in the first talk. I will introduce crossed modules and the example of strict 2-representation...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Topology optimization via implicit neural representations
隐式 神经表示 拓扑优化
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2023/4/24
Along with the rapid development of artificial intelligence (AI) technology, scientific research enters a new era of AI. Topology optimization (TO) and AI technology are recently showing a growing tre...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：On constructions of Lax representations: some examples
松弛表示 构造 非线性数学物理方程 KdV方程
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2023/4/24
著名数学家Peter Lax 在1968年将重要的非线性数学物理方程---KdV方程表示为一个算子方程， 即给出了KdV方程的Lax表示或Lax对。Lax对在孤立子理论的发展中扮演者重要角色，可以看成是研究可积系统的出发点。但如何构造一个给定非线性系统的Lax表示却是非常困难的问题。本报告在概述Lax表示历史的基础上，以Boris Kupershmidt提出的两个非线性发展型方程为具体例子，介绍L...
Can we Beat the Square Root Bound for ECDLP over Fp2 via Representations?
ECDLP Square Root Bound
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2019/7/15
We give a 4-list algorithm for solving the Elliptic Curve Discrete Logarithm (ECDLP) over some quadratic field Fp2Fp2. Using the representation technique, we reduce ECDLP to a multivariate polynomial ...
Faster cofactorization with ECM using mixed representations
factoring Elliptic Curve Method cofactorization
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2018/7/16
This paper introduces a novel implementation of the elliptic curve factoring method specifically designed for medium-size integers such as those arising by billions in the cofactorization step of the ...
Talking to fewer people leads to having more malleable linguistic representations
fewer people leads malleable linguistic representations
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2017/8/30
We learn language from our social environment. In general, the more sources we have, the less informative each of them is, and the less weight we should assign it. If this is the case, people who inte...
Expressive Power of Abstract Meaning Representations
Abstract grammatical meaning system translation logic current definition
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2016/10/31
The syntax of abstract meaning representations (AMRs) can be defined recursively, and a systematic translation to first-order logic (FOL) can be specified, including a proper treatment of negation. AM...
EYE TRACKING TO EXPLORE THE IMPACTS OF PHOTOREALISTIC 3D REPRESENTATIONS IN PEDSTRIAN NAVIGATION PERFORMANCE
3D photorealism eye tracking cognitive workload,
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2016/7/8
Despite the now-ubiquitous two-dimensional (2D) maps, photorealistic three-dimensional (3D) representations of cities (e.g., Google Earth) have gained much attention by scientists and public users as ...
Investigating Neural Representations:The Tale of Place Cells
mechanistic explanations representations spatial navigation place cells grid cells
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2016/6/12
While neuroscientists often characterize brain activity as representational, many philosophers have construed these accounts as just theorists’ glosses on the mechanism. Moreover, philosophical discus...
Reflexive,Symmetric and Transitive Scientific Representations
Reflexive Symmetric Transitive Scientific
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2016/5/31
Theories of scientific representation, following Chakravartty's categorization, are divided into two groups. Whereas cognitive-functional views emphasize agents' intentions, informational theories str...
Scientific Representations as Limiting Cases
scientific representation idealization abstraction scientific models
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2016/5/30
In this essay, I shall show that the so-called inferential (Suárez 2003 and 2004) and interpretational (Contessa 2007) accounts of scientific representation are respectively unsatisfactory and too wea...
Optimal Representations of Polymorphic Types with Subtyping (Extended Abstract)
Optimal Representations Polymorphic Types Subtyping (Extended Abstract)
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2016/5/24
Many type inference and program analysis systems include notions of subtyping and parametric polymorphism. When used together, these two features induce equivalences that allow types to be simpli ed b...
Optimal Representations of Polymorphic Types with Subtyping
types polymorphism subtyping
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2016/5/24
Many type inference and program analysis systems include notions of subtyping and parametric polymorphism. When used together, these two features induce equivalences that allow types to be simpli ed b...
Language-General Biases and Language-Specific Experience Contribute to Phonological Detail in Toddlers’ Word Representations
word learning phonological development perceptual asymmetries mispronunciation detection
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2016/5/3
Although toddlers in their 2nd year of life generally have phonologically detailed representations of words, a consistent lack of sensitivity to certain kinds of phonological changes has been reported...