learning summary fourth the

算法刷题记录:P1518 [USACO2.4]两只塔姆沃斯牛 The Tamworth Two

###题目链接: https://www.luogu.com.cn/problem/P1518 ###题目分析 这道模拟题很典型了,给定了一个**固定的移动方式,去模拟即可**, 该题说:如果牛和农夫永远不会相遇输出0,我没想到很好的方法,不推荐我这样的写法。 算勉强AC吧。 ###AC代码 ``` ......
算法 Tamworth USACO2 P1518 USACO

COMP9417 Machine Learning 机器学习

COMP9417 - Machine LearningHomework 1: Regularized Regression & NumericalOptimizationIntroduction In this homework we will explore some algorithms for ......
Learning 机器 Machine COMP 9417

CF437E The Child and Polygon

# The Child and Polygon 题解 > 这世界这么大,遇到了这个奇奇怪怪的题。 这道题其实可以很自然的联想到卡特兰数。 在卡特兰数的计数中,有这么一个意义:$C_n$ 表示把有 $n+2$ 条边的凸多边形分成 $n$ 个三角形的方案数。 利用这个意义可以得到 $C_n$ 的另一个递 ......
Polygon Child 437E 437 The

会议主题:Federated Learning in Healthcare

主题: Federated Learning in Healthcare日期: 2023-06-07 08:47:33录制文件:https://meeting.tencent.com/v2/cloud-record/share?id=ec65d257-69ab-4807-b670-9312fb2a5 ......
Healthcare Federated Learning 会议 主题

The rocketMQTemplate does not exist TransactionListener

rocketmq-starter版本:2.2.1 发送的代码: @Test public void test1() throws Exception { // 事务id String transactionId = UUID.randomUUID().toString(); info(">>> 发送 ......

Vulnhub之Connect The Dots靶机详细测试过程

# Connect The Dots ## 识别目标主机IP地址 ```shell (kali㉿kali)-[~/Desktop/Vulnhub/Connect_the_dots] └─$ sudo netdiscover -i eth1 -r 192.168.56.0/24 Currently s ......
靶机 过程 Vulnhub Connect Dots

Retrieval of the RSA public key is not enabled for insecure connections.

入职新公司,办理入职、培训、看业务……终于到了跑代码阶段了。遇到一个问题.net Framework链接数据提示RSA 失败或者SSPI失败。 原因不赘述,解决方案两步, 第一使用Navicate链接数据库,选中特定用户,一般上你用哪一个账户选哪一个账户 然后双击用户,改为这个就可以 第二部修改.N ......

mybatis出现Type interface com.louis.dao.xxxMapper is not known to the MapperRegistry.

原因是资源文件没有读取到,在生成的target中没有对应的文件,解决办法: 1、在pom.xml文件中project中添加如下内容: <build> <resources> <resource> <directory>src/main/resources</directory> <includes> ......

Supervised Machine Learning Regression and Classification - Week 1

# 1. 机器学习定义 > Field of study that gives computers the ability to learn without being explicitly programmed. -- Arthur Samuel(1959) ![](https://img2023 ......

关于The JSON value could not be converted to System.DateTime的解决方案

如下json格式提交到后台后报: The JSON value could not be converted to System.DateTime. Path: $.beginTime | LineNumber: 3 | BytePositionInLine: 33. { "beginTime": ......

windows 10 wsl 环境 docker 无法正常启动 -The system cannot find the file specified

错误信息: error during connect: in the default daemon configuration on Windows, the docker client must be run with elevated privileges to connect: Get "ht ......
specified windows 环境 docker cannot

Kettle连接MySQL报错:Driver class 'org.gjt.mm.mysql.Driver' could not be found, make sure the 'MySQL' driver (jar file) is installed

在Windows系统里面安装kettle后打算连接MySQL的时候突然报错 错误连接数据库 [wanghui] : org.pentaho.di.core.exception.KettleDatabaseException: Error occurred while trying to connec ......
Driver MySQL 39 installed Kettle

English Learning Articles 2023-06-08 Multiple insomnia symptoms raise stroke risk in people under 50, study says

Multiple insomnia symptoms raise stroke risk in people under 50, study says If you have trouble falling asleep or staying asleep, wake up too early mo ......
Articles Learning Multiple insomnia symptoms

The user specified as a definer (‘skip-grants user‘@‘skip-grants host‘) does not exist

该问题是由于导出数据库或备份数据库引起的函数所有者发生变化 解决办法 复制源函数创建语句 删除DEFINER 重新创建 ......
skip-grants grants user skip specified

ubuntu 20 permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock:

permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Get "http://%2Fvar%2Frun%2Fdocker.sock/v1.24/con ......
permission connect ubuntu denied Docker

The first attempt of a MnZn

Prove: If $a > 0$,then $\forall x\in \mathbb R, a(\mathrm e^x+a)-x> 2\ln a+\dfrac32$ Proof: Let $f(x) = a(\mathrm e^x+a)-x$, then $f'(x) = a\mathrm e^ ......
attempt first MnZn The of

English Learning Articles 2023-06-07 Nonsurgical cat contraception could help curb overpopulation, study says

Nonsurgical cat contraception could help curb overpopulation, study says There are an estimated 600 million domestic cats in the world, and 80% of the ......

nature-deep learning

Title:Deep learning Authors:Yann LeCun Yoshua Bengio & Geoffrey Hinton doi:10.1038/nature14539 # 1. 概述 使用多处理层学习数据不同层次的抽象表示,在语音识别、视觉识别、目标检测,以及药物发明、基因学等 ......
nature-deep learning nature deep

2.3类神经网路训练不起来怎么办 (三):自动调整学习速率 (Learning Rate)

# 1. 自适应学习率调整(Adaptive Learning Rate) ## 1.1 为什么需要调整学习率 首先认识一个现象.Training stuck ≠ Small Gradient 训练卡住的原因不一定是因为 gradient 太小,即critical point,也有可能是因为振荡. ......
速率 网路 Learning 神经 怎么办

Backtrader - Sell/Buy signal labels are missing in the plotting

1.0 Missing Sell/Buy signal labels 2.0 Solution cerebro = bt.Cerebro(stdstats=True, cheat_on_open=True) stdstats=True,用回預設的stdstats就能顯示Sell/Buy signal ......
Backtrader plotting missing signal labels

Learning to Pre-train Graph Neural Networks 学习如何预训练GNN

![image](https://img2023.cnblogs.com/blog/2992171/202306/2992171-20230607143536765-414002095.png) ![image](https://img2023.cnblogs.com/blog/2992171/20 ......
Pre-train Learning Networks Neural Graph

解决使用yarn安装依赖出现“The engine "node" is incompatible with this module. Expected version "^14.18.0 || ^16.14.0 || >=18.0.0". Got "17.9.0"”的问题

# 1、问题描述 某天在使用`yarn`安装依赖的时候,突然出现如下错误导致安装依赖终止: **The engine "node" is incompatible with this module. Expected version "^14.18.0 || ^16.14.0 || >=18.0.0 ......
quot incompatible Expected version engine

Vue2项目开发时遇到:<template v-for> key should be placed on the <template> tag

问题缘由: Vue2和Vue3中,对待template中存在v-for行为的组件正好相反 Vue2中key必须写在子元素中,Vue3中key必须写在template中,不然会报错 使用volar插件,使用Vue3语法检测代码,导致错误 解决方案: 1、禁用volar 2、貌似可以修改配置项,但尚未尝 ......
template 项目开发 项目 should placed

gdb_learn

# GDB ## 基本gdb命令 ### 运行有关命令 ```shell run(简写r): 运行程序,当遇到断点后,程序会在断点处停止运行,等待用户输入下一步的命令。 continue(简写c):继续执行,到下一个断点处(或运行结束) next(简写n): 单步跟踪程序,当遇到函数调用时,直接调用 ......
gdb_learn learn gdb

上传文件异常:The temporary upload location [/tmp/tomcat.xxxxxxx/work/Tomcat/localhost/ROOT] is not valid

一个长久没更新过的spring boot项目突然间文件上传错误,异常信息如下,此原因主要问题是tomcat默认的临时目录没了,项目运行的服务器每隔一段时间会清除 /tmp 临时目录,项目每次启动都会创建临时目录,经常重启的项目不会有此问题。 解决方案: 1. 重启项目,每隔一段时间重启,可以跟 /t ......
temporary localhost location xxxxxxx 文件

Reward Modelling(RM)and Reinforcement Learning from Human Feedback(RLHF)for Large language models(LLM)技术初探

Reward Modelling(RM)and Reinforcement Learning from Human Feedback(RLHF)for Large language models(LLM)技术初探 ......

Codeforces 1801D The way home

看到 `shortest paths` 来做的。 首先有一个贪心的策略,对于当前点 $u$ 若不能直接往后走则肯定是选择经过的点中 $w_i$ 最大的加。 很好理解,证明就不需要了。 所以可以定义状态 $f_{u, mx}$ 为 $u$ 点最大能加的值为 $h_{mx}$ 的最优状态,$h$ 是 $ ......
Codeforces 1801D 1801 home The

Codeforces 1588F - Jumping Through the Array

显然无法用 polylog 的数据结构维护,序列分块也不行,考虑询问分块。每 $B$ 个询问处理一次。 将这个询问中 $2,3$ 操作涉及到的点设为“关键点”,那么容易发现,环上每一段以关键点结尾的链在这块操作的过程中始终保持不变,也就是说我们可以把它们缩在一起。 先预处理出每个块的增量对每组询问的 ......
Codeforces Jumping Through 1588F Array

Contrastive Learning for Representation Degeneration Problem in Sequential Recommendation

[TOC] > [Qiu R., Huang Z., Ying H. and Wang Z. Contrastive learning for representation degeneration problem in sequential recommendation. WSDM, 2022.] ......

HTTP Basic Authentication>> 401>> Using the browser’s native login prompt

https://docs.oracle.com/cd/E27515_01/common/tutorials/authn_http_basic.html http://blog.stevensanderson.com/2008/08/25/using-the-browsers-native-login ......
gt Authentication browser native prompt