自己学习，不喜勿喷~1.使用多态优于instanceof，当遇到从父类向子类转型时，可以使用instanceof，例如：Vector类可以容纳以 java.lang.Object（或其派生类）为类别的任何元素，但是从Vector中取得的元素都是以java.lang.Object类型返回的。因此从Vector中取得的元素都需要向下转型为该对象原本属于的类。2. 一旦不再需要对象的引用，则将它设置为n
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2023-07-21 19:35:28
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flutter practical, flutter, practical, RN, Dart, React Native, js,
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kkbsource $HOME/.zshrc$ cat .zshrc$ vim .zshrc# flutter PATH & zshexport PATH="$PATH:/Users/xgqfrms-mbp/Documents/
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2019-06-12 20:46:00
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CONTENTSSelecting HyperparametersMost deep learning algorithms come with many hyp
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CONTENTSSuccessfully applying deep learning techniques requires more t
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CONTENTSSelecting Hy
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CONTENTSDebugg
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CONTENTSSuccessfully applying deep learning techniques requires more than just a good knowledge of what algorithms exist and the principles that explain how they work. A good machine learning practit
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CONTENTSDebugging StrategiesWhen a machine learning system performs poorly, it is usually difficult to tell whether the poor performance is intrinsic to
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2021-08-25 10:15:22
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本文转载至：http://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-087-practical-programming-in-c-january-
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2023-05-04 19:31:27
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题目描述We have a grid with H rows and W columns. The square at the i-th row and the j-th column will be called Square (i,j).The integers from 1 through H×W
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2020-03-21 23:49:53
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There is always a temptation when faced with a problem such as "This application needs to just send a value to another server" to reduce it to something
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2021-07-17 16:13:58
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1. 性能优化a) 如欲进行字符吕接合，stringbuffer 优于stringb) 将对象的创建成本(cre ation cost)降至最小 在对象构建过程中，为确保其正确性，以下事件一定会以固定顺序放生： i> 从heap 之中分配内存，用以存放全部的instance 变量以及这个对象连同其superclasses 的实现专届数据(imple
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2024-06-08 15:27:30
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// parseInt 转化--取整 81.5 取整是 81 在遇到非数值的直接干掉，舍掉。 // parseFloat 直接转对应小数 // isNaN not a Number 判断是否为数值 当为true时，非数值；当为false时，为数值。 var a = parseInt("67a.5") ...
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2021-11-02 18:27:00
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数学基础
卷积
卷积这一概念从最原始来说属于一种数学的运算方法，两个数列进行卷积，是指将一个数列翻转后，从另一个数列最左侧开始滑动求和
来到计算机科学中，由于卷积核往往采用对称矩阵，所以翻转这一动作实际就可以忽略掉了。通过卷积核中数据的不同排列，实现提取出输入图片中的特定特征。
训练 + 预测
目前理解的是，预测仅需要实现正向传播那一堆层，得到预测概率
训练需要在实现正向传播基础上，得到预测概率后
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2023-11-02 23:05:47
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<!-- 标准h5协议 --><!-- DTD h4.01 --><!DOCTYPE html><html> <head> <!-- utf-8 GB2312 GBK --> <meta charset="utf-8" /> <!-- viewport （电脑屏幕的）视口 --> <meta nam ...
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In this article we're going to focus on using just the module WWW::Mechanize and the modules in its orbit. There are other modules out there for performing tasks like the ones we're going to expl
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2011-06-24 16:50:52
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Paxos Made Practical 当一个组中一台机器提出一个值时，其它成员机器通过PAXOS算法在这个值上达成一致。 Paxos分三个阶段。 第一阶段： 提出者会选出一个提议编号n（n>0，n的低位应当包括提出者的唯一标识。这样两台机器就不会产生同样的编号），然后会向组内其它成员发送信息PR
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// CPT101 Practical Exercise 1.cpp : This file contains the 'main' function. Program execution begins and ends there. // #include <iostream> int main( ...
OverviewWelcome to Practical Numerical Methods with C#. This book is intended for scientists, engineers, and .NET developers who want to create scientific and engineering applications using C# an
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2011-05-27 14:26:00
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Abstract. We construct a practical lattice-based zero-knowledge argument for proving multiplicative
relations between committed values. The underlying commitment scheme that we use is the currently
mo
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2023-11-15 11:02:29
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