11 2020 档案

How the weather influences your mood?
摘要：Everyone feels a little happier when the sun shines brightly over the city and everyone feels a little bit down when you have to cycle through heavy r 阅读全文
posted @ 2020-11-10 19:58 Noncoretime 阅读(439) 评论(0) 推荐(0)
机器学习实验方法与原理
摘要：k折验证中k值对偏差和方差的影响？ 总共n个数据，假设为2，每次训练集大小为n/2，每次训练的数据量会偏小，取平均值后，由于每次训练的数据量比较小，最终学习输出的模型会不能很好的代表样本的分布（欠拟合），换句话说就是偏差大。或者这么理解，由于k折交叉验证是使用k次训练的结果取平均值来进行预测的，如果 阅读全文
posted @ 2020-11-07 18:44 Noncoretime 阅读(482) 评论(0) 推荐(0)
How human activities damage the environment
摘要：Humans impact the environment in several ways. Common effects include decreased water quality, increased pollution and greenhouse gas emissions, deple 阅读全文
posted @ 2020-11-02 20:16 Noncoretime 阅读(210) 评论(0) 推荐(0)
Slow food
摘要：The Slow Food Movement, started in Italy almost two decades ago to counter the fast food movement. Everything that fast food is, Slow Food isn’t.If yo 阅读全文
posted @ 2020-11-01 21:32 Noncoretime 阅读(447) 评论(0) 推荐(0)
Brief Introduction to Esports
摘要：Esports also known as electronic sports, is a form of sport competition using video games.[1] Esports often takes the form of organized, multiplayer v 阅读全文
posted @ 2020-11-01 19:54 Noncoretime 阅读(208) 评论(0) 推荐(0)
Massive open online course (MOOC)
摘要：A massive open online course (MOOC /muːk/) is an online course aimed at unlimited participation and open access via the web.[1] In addition to traditi 阅读全文
posted @ 2020-11-01 19:53 Noncoretime 阅读(1478) 评论(0) 推荐(0)
Online learning in higher education
摘要：Online learning involves courses offered by postsecondary institutions that are 100% virtual, excluding massively open online courses (MOOCs). Online 阅读全文
posted @ 2020-11-01 16:56 Noncoretime 阅读(137) 评论(0) 推荐(0)