<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[SKGLZ的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/SKGLZ</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; SKGLZ]]></copyright><item><title><![CDATA[mongoDB使用B+树？]]></title><link>https://blog.youkuaiyun.com/SKGLZ/article/details/132755221</link><guid>https://blog.youkuaiyun.com/SKGLZ/article/details/132755221</guid><author>SKGLZ</author><pubDate>Fri, 08 Sep 2023 10:41:31 +0800</pubDate><description><![CDATA[但实际上还有说明：mongodb的存储引擎是wiredtiger，而官方注释了：WiredTiger maintains a table’s data in memory using a data structure called a B-Tree ( B+ Tree to be specific)，所以实际上使用的是B+树。而对于数据的查询来说，假设每个节点是等概率的，内部节点或上层节点的查询次数和概率远低于更深的节点，而更深的节点B树由于中间会存储数据，所以深度可能会更深。查询性能好于B+树？]]></description><category></category></item><item><title><![CDATA[lambda]]></title><link>https://blog.youkuaiyun.com/SKGLZ/article/details/132401882</link><guid>https://blog.youkuaiyun.com/SKGLZ/article/details/132401882</guid><author>SKGLZ</author><pubDate>Mon, 21 Aug 2023 09:39:51 +0800</pubDate><description><![CDATA[可以省略，默认情况下，Lambda函数总是一个const函数，非引用传入的值都是常量，不可修改，mutable可以取消其参数的常量性。在使用该修饰符时，必须有参数传入;不可省略，lambda函数总是从[]开始定义，[]也表示了lambda函数开始定义，[]里面的可以写入对象参数，表明函数可以使用函数外哪些参数，对象参数类型稍后详细介绍；可以省略，用追踪返回类型形式声明函数的返回类型，类似于定义普通函数时函数名前面的函数类型。不可省略，内容与普通函数一样，不过除了可以使用参数之外，还可以使用所有捕获的变量。]]></description><category></category></item><item><title><![CDATA[cuda（C++）编程简要]]></title><link>https://blog.youkuaiyun.com/SKGLZ/article/details/129937868</link><guid>https://blog.youkuaiyun.com/SKGLZ/article/details/129937868</guid><author>SKGLZ</author><pubDate>Tue, 04 Apr 2023 10:02:09 +0800</pubDate><description><![CDATA[项目所需临时接触qt和cuda编程，仅为个人纪录。]]></description><category></category></item><item><title><![CDATA[Towards Stable Test-time Adaptation in Dynamic Wild World]]></title><link>https://blog.youkuaiyun.com/SKGLZ/article/details/129746887</link><guid>https://blog.youkuaiyun.com/SKGLZ/article/details/129746887</guid><author>SKGLZ</author><pubDate>Fri, 24 Mar 2023 11:10:34 +0800</pubDate><description><![CDATA[测试时自适应（Test-Time Adaptation, TTA）方法在测试阶段指导模型进行快速无监督 / 自监督学习，是当前用于提升深度模型分布外泛化能力的一种强有效工具。为此，来自华南理工大学、腾讯 AI Lab 及新加坡国立大学的研究团队，从统一的角度对现有 TTA 方法在动态场景下不稳定原因进行分析，指出依赖于 Batch 的归一化层是导致不稳定的关键原因之一，另外测试数据流中某些具有噪声 / 大规模梯度的样本容易将模型优化至退化的平凡解。]]></description><category></category></item><item><title><![CDATA[torch optim]]></title><link>https://blog.youkuaiyun.com/SKGLZ/article/details/129746491</link><guid>https://blog.youkuaiyun.com/SKGLZ/article/details/129746491</guid><author>SKGLZ</author><pubDate>Fri, 24 Mar 2023 11:01:02 +0800</pubDate><description><![CDATA[当模型的指标停止增加的时候，可以适当降低LR，在Patience时间内模型没有改进的时候，LR会降低。optimizer - 网络的优化器‘min’ -  监控量停止下降的时候，学习率将减小‘max’ - 监控量停止上升的时候，学习率将减小 为’min’factor - 学习率每次降低倍数，new_lr = old_lr * factorpatience - 容忍网路的性能不提升的次数，高于这个次数就降低学习率verbose - True，则为每次更新向stdout输出一条消息。]]></description><category></category></item><item><title><![CDATA[python subplot、subplots]]></title><link>https://blog.youkuaiyun.com/SKGLZ/article/details/129672668</link><guid>https://blog.youkuaiyun.com/SKGLZ/article/details/129672668</guid><author>SKGLZ</author><pubDate>Mon, 20 Mar 2023 17:52:29 +0800</pubDate><description><![CDATA[ax1.boxplot([thick1_2, thick1_1, thick1_3, thick1_4, thick1_5], labels=lables)  # 注意单词labels和lables。]]></description><category></category></item><item><title><![CDATA[static_cast＜void*＞ C++指针地址和指针指向内容]]></title><link>https://blog.youkuaiyun.com/SKGLZ/article/details/128022011</link><guid>https://blog.youkuaiyun.com/SKGLZ/article/details/128022011</guid><author>SKGLZ</author><pubDate>Thu, 24 Nov 2022 16:50:14 +0800</pubDate><description><![CDATA[使用中改为void*的原因：想要的不是指针指向数组的内容，而是这个指针本身的值即地址。]]></description><category></category></item><item><title><![CDATA[bool 和_Bool的使用]]></title><link>https://blog.youkuaiyun.com/SKGLZ/article/details/127763816</link><guid>https://blog.youkuaiyun.com/SKGLZ/article/details/127763816</guid><author>SKGLZ</author><pubDate>Wed, 09 Nov 2022 09:52:08 +0800</pubDate><description><![CDATA[bool是C++的关键字，一种数据类型，长度是4
_Bool是C99新增加的关键字，长度是1
在C++中，又把bool重定义为_Bool ,typedef bool _Bool
想互相使用方法一：typedef
typedef int _BOOL ;
#define true 1
#define false 0
方法二：枚举
ypedef enum { true=1, false} _SBOOL;出现error: C2632: “int”后面的“bool”非法除了上述原因，还可能是和库文件重复定义产生冲突，]]></description><category></category></item><item><title><![CDATA[ZED2相机+NVIDIA NX使用及检测目标功能2]]></title><link>https://blog.youkuaiyun.com/SKGLZ/article/details/127414229</link><guid>https://blog.youkuaiyun.com/SKGLZ/article/details/127414229</guid><author>SKGLZ</author><pubDate>Wed, 19 Oct 2022 20:06:14 +0800</pubDate><description><![CDATA[ZED2相机+NVIDIA NX简单用于检测目标例子]]></description><category></category></item><item><title><![CDATA[ZED2相机+NVIDIA NX使用及检测目标功能1]]></title><link>https://blog.youkuaiyun.com/SKGLZ/article/details/126279712</link><guid>https://blog.youkuaiyun.com/SKGLZ/article/details/126279712</guid><author>SKGLZ</author><pubDate>Thu, 11 Aug 2022 14:07:26 +0800</pubDate><description><![CDATA[设置相机参数：修改文件param/common.yaml（所有相机通用参数）和param/zed2.yaml参数调整：https://www.stereolabs.com/docs/ros/zed-node/配置RVIZ：https://www.stereolabs.com/docs/ros/rviz/显示其余ZED数据：https://www.stereolabs.com/docs/ros/..............................]]></description><category></category></item><item><title><![CDATA[ROS创建新的工作空间]]></title><link>https://blog.youkuaiyun.com/SKGLZ/article/details/125798442</link><guid>https://blog.youkuaiyun.com/SKGLZ/article/details/125798442</guid><author>SKGLZ</author><pubDate>Fri, 15 Jul 2022 10:05:03 +0800</pubDate><description><![CDATA[ROS创建catkin_ws]]></description><category></category></item><item><title><![CDATA[ROS常用命令]]></title><link>https://blog.youkuaiyun.com/SKGLZ/article/details/125796973</link><guid>https://blog.youkuaiyun.com/SKGLZ/article/details/125796973</guid><author>SKGLZ</author><pubDate>Fri, 15 Jul 2022 09:28:49 +0800</pubDate><description><![CDATA[ROS常用命令]]></description><category></category></item><item><title><![CDATA[ROS安装问题总结]]></title><link>https://blog.youkuaiyun.com/SKGLZ/article/details/125779350</link><guid>https://blog.youkuaiyun.com/SKGLZ/article/details/125779350</guid><author>SKGLZ</author><pubDate>Thu, 14 Jul 2022 10:50:49 +0800</pubDate><description><![CDATA[ROS安装问题]]></description><category></category></item><item><title><![CDATA[pip使用清华镜像]]></title><link>https://blog.youkuaiyun.com/SKGLZ/article/details/120805446</link><guid>https://blog.youkuaiyun.com/SKGLZ/article/details/120805446</guid><author>SKGLZ</author><pubDate>Sat, 16 Oct 2021 22:46:14 +0800</pubDate><description><![CDATA[python -m pip install tensorflow -i https://pypi.tuna.tsinghua.edu.cn/simple

]]></description><category></category></item><item><title><![CDATA[matlab的RGB调色数据设置]]></title><link>https://blog.youkuaiyun.com/SKGLZ/article/details/120775581</link><guid>https://blog.youkuaiyun.com/SKGLZ/article/details/120775581</guid><author>SKGLZ</author><pubDate>Fri, 15 Oct 2021 00:37:04 +0800</pubDate><description><![CDATA[链接: link.

]]></description><category></category></item><item><title><![CDATA[Expected binary or unicode string, got 3]]></title><link>https://blog.youkuaiyun.com/SKGLZ/article/details/120749379</link><guid>https://blog.youkuaiyun.com/SKGLZ/article/details/120749379</guid><author>SKGLZ</author><pubDate>Wed, 13 Oct 2021 18:42:56 +0800</pubDate><description><![CDATA[Expected binary or unicode string, got 3
错误原因：对于y1，y2，由于直接把值赋给了dataframe类型的变量，而这一列本身是字符，赋予他是int时转成np数组一定要声明数据类型，将object才能改为int，然后进行数据切分等操作


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