model train the fit

AT_abc326_e Revenge of "The Salary of AtCoder Inc." 题解

AT_abc326_e Revenge of "The Salary of AtCoder Inc." 题解 一道简单的概率论+动态规划题目(然而我赛时没看这道题 题意 有一个长度为 \(n\) 的序列 \(A\)、一个 \(n\) 面骰子,掷若干次骰子,如果这一次掷骰子的点数小于等于上一次的点数, ......
题解 quot Revenge AtCoder AT_abc

【找到 Anchor-based and Anchor-free 性能差距的本质】Adaptive Training Sample Selection (ATSS) 论文精读

原始题目:Bridging the Gap Between Anchor-based and Anchor-free Detection via Adaptive Training Sample Selection 中文翻译:通过 自适应训练样本选择 缩小 Anchor-based and Anch ......

Markov Decision Process Model Based on Value Iteration

Using the taxi example of OpenAI Gym to achieve and tune MDP model in Reinforcement Learning based on value iteration. ......
Iteration Decision Process Markov Based

执行SQL 获取一个Model

sqlParams?.ToArray() == sqlParams != null ? sqlParams.ToArray() : null /// <summary> /// 获取最新的数据 /// </summary> /// <returns></returns> public WeldRes ......
Model SQL

python sqlalchemy 动态设置表名__tablename__,一个model对应多个table

from sqlalchemy import create_engine,Column,BigInteger,String from sqlalchemy.ext.declarative import declarative_base from sqlalchemy.orm import sessi ......
sqlalchemy tablename 多个 动态 python

报错:The server time zone value ‘�й���׼ʱ��’ is unrecognized or represents more than one time zone

在运行项目的时候遇到了这样一个报错,是数据库的问题但是不知道是什么原因,在网上搜了一下发现只需要在url后面加上serverTimezone=UTC这串代码就行了 例如 jdbc:mysql://localhost:3306/result?characterEncoding=UTF-8&server ......
time zone unrecognized represents server

在CentOS7上更改端口号时报错:Job for sshd.service failed because the control process exited with error

1、问题描述 在在CentOS7×上更改端口号时报错: “Job for sshd.service failed because the control process exited with error code.See ‘systemcl status& sshd service" and fo ......
口号 时报 CentOS7 because control

laravel:单元测试之model(10.27.0)

一,相关文档 https://learnku.com/docs/laravel/10.x/testing/14895 二,php代码 1,查看laravel自带的phpunit的版本 liuhongdi@lhdpc:/data/laravel/dignews$ ./vendor/bin/phpuni ......
单元 laravel model 10 27

How to Find the Size of a DB2 Database

How to Find the Size of a DB2 Database EMBER CROOKS JUNE 19, 2012 15 COMMENTS How big is it? How much space do we need if we copy it? How big will it ......
Database Find Size How DB2

Unveiling the Dangers of Land Pollution

Unveiling the Dangers of Land Pollution Land, the very foundation of life, sustains ecosystems, supports agriculture, and provides spaces for human ha ......
Unveiling Pollution Dangers Land the

Water Pollution: The defination, types, causes, effects and meatures.

What is water pollution? Water pollution can be defined in many ways. Usually, it means one or more substances have built up in water to such an exten ......
defination Pollution meatures effects causes

3 ways light pollution harms the planet - and what we can do about it

Light pollution not only impacts the environment, but our health too. ·Global light pollution has increased by 49% over 25 years to 2017, new research ......
pollution planet light harms about

「CF715E」Complete the Permutations

\(\text{「CF715E」Complete the Permutations}\) \(\text{Link}\) \(\text{Describe}\) 给定长为 \(n\) 的且部分确定的置换 \(p,q\)。定义 \(p,q\) 距离为通过交换 \(p\) 任意两项变为 \(q\) 的最 ......
Permutations Complete 715E 715 the

#期望dp#CF1810G The Maximum Prefix

洛谷题面 CF1810G 分析 考虑最大前缀和满足两个条件,就是所有前缀和都不超过,以及一定有一个等于。 那么就要保证它能达到最大值且一直不能高于它 设 \(dp[i][j][0/1]\) 表示前 \(i\) 个数离达到最大值还需要 \(j\) 且未/已经达到过最大值。 初始化就是 \(dp[0][ ......
Maximum Prefix 1810 The dp

Cannot connect to the Docker

执行docker基础命令失败! Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running? 原因:docker服务没有启动。 解决方法:执行 systemctl s ......
connect Cannot Docker the to

B. The Walkway

大意: B. The Walkway 在一个二维公园中,有n个椅子,从一个一直到另一个椅子的时间为d,有m个卖饼干,分布在$s_i$椅子旁边, 当且仅当以下条件中至少有一个成立时,他才会在$ i$长凳附近吃饼干: 在第 $i$个长凳附近有一个卖饼干的人。那么 Petya 就会从卖饼干的人那里买一块饼 ......
Walkway The

[LeetCode] 2558. Take Gifts From the Richest Pile

You are given an integer array gifts denoting the number of gifts in various piles. Every second, you do the following: Choose the pile with the maxim ......
LeetCode Richest Gifts 2558 From

macos pip3 安装 mycli/scrapy 路径报错 WARNING: The script tabulate is installed in '/Users/modys/Library/Python/3.9/bin' which is not on PATH.

WARNING: The script tabulate is installed in '/Users/modys/Library/Python/3.9/bin' which is not on PATH. python没有添加到环境变量 export PATH=/Users/<you>/Libr ......
路径 installed tabulate WARNING Library

openapi-generator修改默认生成的Model文件名称

openapi-generator为各种语言都以抽象类的形式进行了默认配置 以Typescript为例,其中的抽象类路径为 openapi-generator\modules\openapi-generator\src\main\java\org\openapitools\codegen\langu ......

Why do I hear a NoiseHiss in the IEM system

# Why do I hear a Noise/Hiss in the IEM system? ``` Why do I hear a Noise/Hiss in the IEM system? The most common hiss that is referred to is caused b ......
NoiseHiss system hear Why IEM

docker: Error response from daemon: Conflict. The container name "/web" is already in use by container ......

问题:docker启动docker容器时报错docker: Error response from daemon: Conflict. The container name is already in use by container You have to remove (or rename) t ......
container quot Conflict response already

EF出现错误:An error occurred while updating the entries. See the inner exception for details.

问题:EF出现错误An error occurred while updating the entries. See the inner exception for details 场景:适用Excel批量导入数据时,提示了以上错误 解决思路: 1、查看是否有重复的主键 2、是否有不可为空的字段没有 ......
exception the occurred updating 错误

Paper Reading: WCDForest: a weighted cascade deep forest model toward the classifcation tasks

针对 gcForest 存在的一些缺点,本文提出了一种 WCDForest 模型来提高小样本分类数据集的准确率。为了提高 WCDForest 的特征提取能力,提出了一种等量多粒度扫描模块,可以平等地扫描边缘特征。提出了类向量加权模块和特征增强模块,它们重新评估了 RF 在多粒度扫描和级联森林阶段的分... ......
160 classifcation WCDForest weighted Reading

PAT 甲级【1012 The Best Rank】

本题用java极容易超时,提交了好几次才成功 另外90 88 77 77 50,名次应该是1 2 3 3 5 ,不是1 2 3 3 4 import java.io.*; public class Main { @SuppressWarnings("unchecked") public static ......
甲级 1012 Best Rank PAT

R语言建立和可视化混合效应模型mixed effect model|附代码数据

全文下载链接:http://tecdat.cn/?p=20631 最近我们被客户要求撰写关于混合效应模型的研究报告,包括一些图形和统计输出 我们已经学习了如何处理混合效应模型。本文的重点是如何建立和_可视化_ 混合效应模型的结果 设置 本文使用数据集,用于探索草食动物种群对珊瑚覆盖的影响。 knit ......
效应 模型 语言 代码 数据

SPSS Modeler用K-means(K-均值)聚类、CHAID、CART决策树分析31省市土地利用情况和GDP数据|附文件数据

全文链接:http://tecdat.cn/?p=32840 原文出处:拓端数据部落公众号 随着经济的快速发展和城市化进程的不断推进,土地资源的利用和管理成为了一项极为重要的任务。而对于全国各省市而言,如何合理利用土地资源,通过科学的方法进行规划和管理,是提高土地利用效率的关键。 本文旨在应用SPS ......
均值 数据 省市 土地 Modeler

The 2021 ICPC Asia Macau Regional Contest

\(C. Laser Trap\) 根据题意不难判断出需要极角排序,然后对于每个点寻找更小的一个 \(180\) 度的点数。即使听说是用双指针实现查找依旧没什么思路。后来看了别人的实现方法发现确实比较简单,甚至只需要维护极角就可以了。 const long double pi=acosl(-1); ......
Regional Contest Macau 2021 ICPC

The Dance After Last Dance - CSP2023 游记

波神留我看斜阳,唤起层层细浪。 高三也不过是这样,在银杏叶黄的烂漫的季节,骑车回家的路上总能望见绯红的轻云,但银杏叶下也缺不了成群结队的“高考”的速成班,手里拿着致密的复习资料,桌上凌乱的堆着书本和卷子,形成一座富士山。也有摒弃一切杂念,专心学习,于外界断绝一切联系的,宛如未出闺阁的小姑娘一般,还要 ......
Dance 游记 After 2023 Last

Data truncation: Invalid JSON text in argument 1 to function json_extract: "The document is empty." at position 0.问题解决

问题描述: json格式不规范导致的,仅使用where+json_valid清洗似乎并不足以解决问题 解决方法: select order_number,sku_code,CASE WHEN JSON_VALID(sales_price) THEN sales_price ELSE null END ......

kernel function: the difference beween cdev_add and device_create

To use a character driver, first you should register it with the system. Then you should expose it to the user space. 1. cdev_init and cdev_add functi ......