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京东618:算法让UV价值提升200%+,用智能卖场缩短购物路径 - 更多技术 - 清...
...示,该项目基于大数据挖掘、人工智能等技术能力,通过搜索、推荐、智能卖场、揽客计划、智慧物流、智慧数据等多种产品形态,对京东现有系统,从架构层的基础设施、数据平台、计算分析,到业务层的精准营销、智慧选品...
【客户反馈】增加直接改项目名称的功能 - 用户反馈 - 清泛IT社区,为创新赋能!
...有些思路在名字上有体现会比较好。比如我一开始只做了蓝牙模块控制,名字ble,后面又加wifi,项目名称改的话就是wifi+ble。
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感谢反馈,采纳此条建议,改名功能推进中,敬请期待!已支持并上线:https://b...
Advantages and disadvantages of GUID / UUID database keys
...ould have been made a lot easier if all the database keys had been GUID / UUID values. I've considered going down this path a few times, but there's always a bit of uncertainty, especially around performance and un-read-out-over-the-phone-able URLs.
...
Symbolicating iPhone App Crash Reports
...es produced during the build of that binary.
Each binary is referred by a UUID that can be seen in the crash log file:
...
Binary Images:
0xe1000 - 0x1f0fff +example armv7 <aa5e633efda8346cab92b01320043dc3> /var/mobile/Applications/9FB5D11F-42C0-42CA-A336-4B99FF97708F/example.app/example...
搭建高可用mongodb集群(三)—— 深入副本集内部机制 - 大数据 & AI - 清...
...什么Bully算法?要明白这个我们先看看这两种架构:
指定主节点的架构,这种架构一般都会申明一个节点为主节点,其他节点都是从节点,如我们常用的mysql就是这样。但是这样架构我们在第一节说了整个集群如果主节点挂...
App Inventor 2 BLE扩展源码分析 - WriteBytes vs WriteStrings 23字节硬编...
...符串转字节列表(文本输入框_命令.文本)
调用 蓝牙LE1.WriteBytes(字节列表)
优点:无需修改源码,立即可用
缺点:需要额外的转换步骤
方案2:修改 NullTerminateStrings + 限制长度
如果坚持使用 WriteStrings:
1. 在 Design...
Cache Invalidation — Is there a General Solution?
...e computed value (of type b) into some kind of a writer Monad Writer (Set (uuid)) b where Set (uuid) (Haskell notation) contains all the identifiers of the mutable values on which the computed value b depends. So, uuid is some kind of a unique identifier that identifies the mutable value/variable (s...
MySQL复制的概述、安装、故障、技巧、工具 - 数据库(内核) - 清泛网 - 专注...
...从服务器各自的server_id唯一,避免冲突。
注:如果没有指定log_bin的话,缺省会使用主机名作为名字,如此一来一旦主机名发生改变,就会出问题,所以推荐指定log_bin(从服务器的relay_log存在一样的问题)。
注:sync_binlog,inno...
Create unique constraint with null columns
...0000-0000-0000-0000-000000000000'), RecipeId);
You'd just need to pick a UUID for the COALESCE that will never occur in "real life". You'd probably never see a zero UUID in real life but you could add a CHECK constraint if you are paranoid (and since they really are out to get you...):
alter tabl...
CentOS 6.4下Squid代理服务器的安装与配置 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...代理和透明代理。
普通代理:需要客户机在浏览器中指定代理服务器的地址、端口;
透明代理:适用于企业的网关主机(共享接入Internet)中,客户机不需要指定代理服务器地址、端口等信息,代理服务器需要设置防火墙策...
