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RSS订阅原创 网络爬虫概述
1、概述网络爬虫事一种按照一定的规则，自动抓取万维网信息的程序或者脚本。2、分类网络爬虫按照系统结构和实现技术，大致可以分为以下几种：1）通用型爬虫2）聚焦型爬虫3）增量式爬虫4）深层网络爬虫3、基本结构1）URL管理器2）HTML下载器3）HTML解析器4）数据存储器5）爬虫调度器4、HTTP请求Python实现1) urllib2/
2017-12-10 14:08:44
769
原创 android 教程
android 简易教程一、五大组件 activity （通常就是一个单独的屏，须在AndroidManifest.xml进行注册）生命周期：1、OnCreate( 需要重写，绑定界面，做初始化;界面不可见)2、OnStart(可选，界面可见不可操作，每次重新跳转回来时会调用)3、OnResume(可见并可操作)4、OnPaused(可见不可操作，界面将要跳转或者有
2017-02-25 19:58:24
422
转载 Tensorflow Training
Training[TOC]This library provides a set of classes and functions that helps train models.OptimizersThe Optimizer base class provides methods to compute gradients for a loss and apply gr
2016-12-12 16:32:14
7594
原创 knn算法
KNN 即K临近算法 ，即求k个离测试数据最近的点来获取分类结果或者值方法：（离散型）取k个点中出现频率最高的标签值或者（连续型）以k个点的距离/k个点总距离的和作为预测值优点：精度高，对异常值不敏感，无数据输入假定缺点：计算复杂度高，空间复杂度高使用数据范围：数值型和标称型（即离散型）条件：假设所取特征对结果具有相同的影响力，防止个别特种数值差过大导致个别表情对结果影响过大掩
2016-12-11 00:00:43
585
原创 poj1252Euro Efficiency
Euro EfficiencyTime Limit: 1000MS Memory Limit: 10000KTotal Submissions: 3321 Accepted: 1431DescriptionOn January 1st 2002, The Netherlands, and several other Eur
2014-09-25 21:41:53
563
原创 hdu5038 Grade
GradeTime Limit: 3000/1500 MS (Java/Others) Memory Limit: 262144/262144 K (Java/Others)Total Submission(s): 337 Accepted Submission(s): 190Problem DescriptionTed is a employee of
2014-09-22 23:18:08
503
原创 poj3624Charm Bracelet
Charm BraceletTime Limit: 1000MS Memory Limit: 65536KTotal Submissions: 23806 Accepted: 10733DescriptionBessie has gone to the mall's jewelry store and spies a ch
2014-09-19 23:13:33
431
原创 hdu2546饭卡
饭卡Time Limit: 5000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 11841 Accepted Submission(s): 4081Problem Description电子科大本部食堂的饭卡有一种很诡异的设计，即
2014-09-19 18:44:28
662
原创 hdu2175汉诺塔IX
汉诺塔IXTime Limit: 3000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 775 Accepted Submission(s): 462Problem Description1,2,...,n表示n个盘子．数字大盘子就
2014-09-18 20:39:35
1040
原创 hdu1995汉诺塔V
汉诺塔VTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 2535 Accepted Submission(s): 1508Problem Description用1,2,...,n表示n个盘子，称为1号
2014-09-18 14:36:48
748
原创 hdu1879继续畅通工程
继续畅通工程Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 14154 Accepted Submission(s): 6172Problem Description省政府“畅通工程”的目标是使全省任何
2014-09-17 17:19:26
453
原创 hdu1233还是畅通工程
还是畅通工程Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 26566 Accepted Submission(s): 11852Problem Description某省调查乡村交通状况，得到的统计表
2014-09-17 17:01:01
437
原创 poj1789 Truck History
Truck HistoryTime Limit: 2000MS Memory Limit: 65536KTotal Submissions: 18828 Accepted: 7263DescriptionAdvanced Cargo Movement, Ltd. uses trucks of different types
2014-09-16 20:39:41
458
原创 hdu5012Dice
DiceTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 462 Accepted Submission(s): 273Problem DescriptionThere are 2 special dic
2014-09-15 23:54:07
477
原创 hdu5011 Game
GameTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 253 Accepted Submission(s): 195Problem DescriptionHere is a game for two
2014-09-15 17:28:54
420
原创 hdu1272小希的迷宫
小希的迷宫Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 26979 Accepted Submission(s): 8320Problem Description上次Gardon的迷宫城堡小希玩了很久
2014-09-15 02:05:04
470
原创 hdu1272小希的迷宫
小希的迷宫Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 26979 Accepted Submission(s): 8320Problem Description上次Gardon的迷宫城堡小希玩了很久
2014-09-15 02:00:08
418
原创 hdu1226 超级密码
超级密码Time Limit: 20000/10000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 2528 Accepted Submission(s): 812Problem DescriptionIgnatius花了一个星期的时间终于找
2014-09-11 20:21:21
844
原创 hdu3912 Turn Right
Turn RightTime Limit: 6000/2000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1106 Accepted Submission(s): 359Problem DescriptionThis summer, ELT
2014-09-11 19:35:39
632
原创 POJ1129
Channel AllocationTime Limit: 1000MS Memory Limit: 10000KTotal Submissions: 12311 Accepted: 6296DescriptionWhen a radio station is broadcasting over a very large
2014-09-10 18:19:03
465
原创 HDU4771
Channel AllocationTime Limit: 1000MS Memory Limit: 10000KTotal Submissions: 12301 Accepted: 6289DescriptionWhen a radio station is broadcasting over a very large
2014-09-10 15:46:19
801
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