Abstract. The conic sections and circles play a fundamental role in CAD/CAM applications. Undoubtedly one of the greatest advantages of NURBS is their capability of precisely representing conic sectio
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2021-08-17 13:53:53
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Abstract. Rational Bezier Curve can represent conic curves such as circle, ellipse, hyperbola, .etc. But how to convert a conic curve to BSpline curve is still question, i.e. Represent a conic curve i
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2021-08-17 13:54:07
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Abstract. Rational Bezier Curve can represent conic curves such as circle, ellipse, hyperbola, .etc. But how to convert a conic curve to BSpline curve is still question, i.e. Represent a conic curve i
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2021-08-17 13:54:24
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周一到周五，每天一篇，北京时间早上7点准时更新~Curves(曲线)Ifmovingeverythingalongastraightlinebetweentwopointsisallwewantedtodo,thenthiswouldbeenough.However,intherealworld,objectsmoveinsmoothcurvesandaccelerateanddecelerate
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2019-08-13 11:31:45
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2020-11-18 00:39:00
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转自：https://sighack.com/post/chaikin-curves In this post, we’ll look at what Chaikin curves are, how to implement them in Processing as well as some wa
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2019-11-19 14:19:00
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Abstract. This paper is concerned with parametric curves and surfaces definitions, such as singular point and regular point and their application in OpenCascade. The two most common methods of represe
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2021-08-17 13:53:21
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The conic sections are the n
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2022-11-10 01:11:40
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分布式系统（distributed system）正变得越来越重要，大型网站几乎都是分布式的。分布式系统的最大难点，就是各个节点的状态如何保持一致。CAP理论是在设计分布式系统的过程中，处理数据一致性问题时必须考虑的理论。一、什么是CAP理论CAP即：Consistency（一致性）Availability（可用性）Partition tolerance（分区容忍性）这三个性质对应了分布式系统的三
搭建过程中遇到的问题这一节主要记录一下我在搭建Flutter开发环境的过程中遇到的几个问题以及解决方法Flutter插件与Android studio版本不兼容问题在Android Studio的插件列表里找到Flutter插件，然后安装的时候有个提示‘Plugin ‘Flutter’ is incompatible with this installation’,意思是说要安装的flutter插
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2024-10-10 18:04:38
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PR曲线和ROC曲线是数据挖掘中2个常见的评估指标（对于二分器而言），理解如下：一、pr曲线：1）y轴为precision，x轴为recall。2）pr曲线上各个取值为当前p下，样本判断结果：大于p的为正样本，反之为负样本。3）pr曲线从左到右的取值点，为p值降序下的锚点。4）随着p值降低，越多样本判为正样本，recall不断增大，而precision则计算大于p的那些样本的precision（给
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2024-09-14 09:39:59
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# Python中Learning Curves
在机器学习中，Learning Curves（学习曲线）是一种用于评估模型性能和训练数据量之间关系的工具。学习曲线显示了随着训练数据量的增加，模型在训练集和验证集上的性能变化情况。通过分析学习曲线，我们可以了解模型的过拟合或欠拟合情况，有助于调整模型的参数以提高性能。
## 如何绘制Learning Curves
在Python中，我们可以使
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2024-05-01 04:12:03
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Training an algorithm on a very few number of data points (such as 1, 2 or 3) will easily have 0 errors because we can always find a quadratic curve t
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2020-09-25 15:29:00
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一、粒子系统的创建和操作方式 GameObject->CreateOther->ParticleSystem创建粒子系统 或者直接在结构窗口Create->ParticleSystem创建粒子系统 也可以在物体中以组件的形式来AddC
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2024-09-10 12:34:03
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Error Curves 思路：这个题的思路和上一个题的思路一样，但是这个题目卡精度，要在计算时，卡到1e-9。
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2017-10-26 22:01:00
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Abstract. Although polynomials offer many advantages, there exist a number of important curve and surface types which cannot be represented precisely using polynomials, e.g., circles, ellipses, hyperb
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2021-08-17 13:55:11
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所谓样条曲线是指给定一组控制点而得到一条曲线，曲线的大致形状由这些点予以控制，一般可分为插值样条和逼近样条两种，插
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2023-11-07 11:26:36
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锥形渐变–语法IE暂不支持conic-gradient( [ from <
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2022-07-12 16:30:24
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window.onload = function() { var canvas = document.getElementById("canvas"), context = canvas.getContext("2d"); context.beginPath(); c...
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2015-03-19 22:00:00
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非常巧妙，我领悟了半天才明白，赞叹赞叹！
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2022-12-27 00:01:37
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