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		<title>春节假期&#8220;微博&#8221;大放送</title>
		<link>http://liulixiang.info/blog/2012/02/02/%e6%98%a5%e8%8a%82%e5%81%87%e6%9c%9f%e5%be%ae%e5%8d%9a%e5%a4%a7%e6%94%be%e9%80%81/</link>
		<comments>http://liulixiang.info/blog/2012/02/02/%e6%98%a5%e8%8a%82%e5%81%87%e6%9c%9f%e5%be%ae%e5%8d%9a%e5%a4%a7%e6%94%be%e9%80%81/#comments</comments>
		<pubDate>Thu, 02 Feb 2012 15:18:00 +0000</pubDate>
		<dc:creator>Lixiang Liu</dc:creator>
				<category><![CDATA[Talk Nocence]]></category>
		<category><![CDATA[乱侃]]></category>

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		<description><![CDATA[在家待了半个月没有上网，将一些见闻和感慨烩成一篇乱侃。 &#160;&#160;&#160;&#160;&#160; 今年放假前导师安排了一点假期任务（但是截止日期在2月底），另外在回家前将所有小活都收拾妥当，于是就“完全”放假了，春节假期这半个月确实过得非常安心。 &#160;&#160;&#160;&#160; 回家的火车上周围均为学生，不过除我之外组成为两90后、一石油专业博士、一医学女博士、一地质博士，这个组合的几个人聚在一起似乎没什么共同话语，寒暄几句后最终话题停留在快乐大本营、中国达人秀、新还珠格格、步步惊心……我作为门外汉只能旁听，事实证明我脱离群众太远。 &#160;&#160;&#160; 在家有很大一部分时间都在看电视，轮到我自己选择的时候一般看电视指南频道或新闻——果然是过了看电视的年龄。当然大多数时候在看其他节目： 今年春晚似乎没有明显的广告，很赞，不过考虑到第二天拜年任务较重我早早睡了； 中国达人秀决赛确实很精彩，但是情何以堪的是开始之前我猜的名次只错了第2和第3的顺序，另外最后那个媒体投票完全搞笑，希望事实是那些媒体没有代表前往（特别是网易、奇艺、人人等网络媒体）； 宫廷戏依旧火爆，特别是穿越到过去的宫廷剧； 新还珠格格果然是给00后看的，侄女们特别喜欢，居然用DVD一遍一遍重复地看； 侄子外甥们则爱看斗龙战士很火爆，买了不少画片和玩具。 &#160;&#160;&#160; 看电视的同时就是照看串门到来家里玩的外甥（女）侄子（女）们，这群娃儿很难伺候：两个读一年级外甥和侄子每天都过来要平板和手机玩游戏，还经常因抢平板或手机打架，如果不幸另外一个稍小一点的外甥女也在场的话场面更加难以控制；还好几个大一点的外甥和侄女们都比较乖，即便要玩游戏也懂得排队和轮流交换；最调皮的外甥女依旧非常调皮，不过去年老央求我抱然后抢我眼镜摔地上的小侄女居然不摔眼镜了。 &#160;&#160;&#160;&#160; 说到小孩，有一表姐今年新添了孙儿，不过考虑到某表哥的孙子都已初中毕业了，我更期待大姨家五世同堂的出现。 &#160;&#160;&#160;&#160; 春节期间最重要的活动是拜年。拜年期间的两大经典对话自然是“你什么时候毕业？”“现在有女朋友没？”真是经典段子啊。可惜今年天气不佳，春节期间没怎么去远处好些长辈家拜年，作为晚辈觉得过意不去。 &#160;&#160;&#160;&#160; 相亲继续是春节期间一项特殊的活动。今年见识了被逼相亲，我觉得这样下去过不了几年我也要被逼着去相亲了——还好目前没有轮到我，暂时不需要考虑。 &#160;&#160;&#160; 返程时坐高铁到长沙，确实比较方便快捷。到北京的火车遇上卧铺改装车，中铺和上铺居然全部被“补”出去了，坐在下铺又是一晚折腾没怎么睡。 &#160;&#160;&#160;&#160;&#160; 马上开始春节后的工作，希望这一年顺利如意。<table class="wumii-related-items" cellspacing="0" cellpadding="2" border="0" width="100%" style="clear: both;">
    
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			<content:encoded><![CDATA[<blockquote><p>在家待了半个月没有上网，将一些见闻和感慨烩成一篇乱侃。</p>
</blockquote>
<p>&#160;&#160;&#160;&#160;&#160; 今年放假前导师安排了一点假期任务（但是截止日期在2月底），另外在回家前将所有小活都收拾妥当，于是就“完全”放假了，春节假期这半个月确实过得非常安心。</p>
<p>&#160;&#160;&#160;&#160; 回家的火车上周围均为学生，不过除我之外组成为两90后、一石油专业博士、一医学女博士、一地质博士，这个组合的几个人聚在一起似乎没什么共同话语，寒暄几句后最终话题停留在快乐大本营、中国达人秀、新还珠格格、步步惊心……我作为门外汉只能旁听，事实证明我脱离群众太远。</p>
<p>&#160;&#160;&#160; 在家有很大一部分时间都在看电视，轮到我自己选择的时候一般看电视指南频道或新闻——果然是过了看电视的年龄。当然大多数时候在看其他节目：</p>
<ul>
<li>今年春晚似乎没有明显的广告，很赞，不过考虑到第二天拜年任务较重我早早睡了；</li>
<li>中国达人秀决赛确实很精彩，但是情何以堪的是开始之前我猜的名次只错了第2和第3的顺序，另外最后那个媒体投票完全搞笑，希望事实是那些媒体没有代表前往（特别是网易、奇艺、人人等网络媒体）；</li>
<li>宫廷戏依旧火爆，特别是穿越到过去的宫廷剧；</li>
<li>新还珠格格果然是给00后看的，侄女们特别喜欢，居然用DVD一遍一遍重复地看；</li>
<li>侄子外甥们则爱看斗龙战士很火爆，买了不少画片和玩具。</li>
</ul>
<p>&#160;&#160;&#160; 看电视的同时就是照看串门到来家里玩的外甥（女）侄子（女）们，这群娃儿很难伺候：两个读一年级外甥和侄子每天都过来要平板和手机玩游戏，还经常因抢平板或手机打架，如果不幸另外一个稍小一点的外甥女也在场的话场面更加难以控制；还好几个大一点的外甥和侄女们都比较乖，即便要玩游戏也懂得排队和轮流交换；最调皮的外甥女依旧非常调皮，不过去年老央求我抱然后抢我眼镜摔地上的小侄女居然不摔眼镜了。</p>
<p>&#160;&#160;&#160;&#160; 说到小孩，有一表姐今年新添了孙儿，不过考虑到某表哥的孙子都已初中毕业了，我更期待大姨家五世同堂的出现。</p>
<p>&#160;&#160;&#160;&#160; 春节期间最重要的活动是拜年。拜年期间的两大经典对话自然是“你什么时候毕业？”“现在有女朋友没？”真是经典段子啊。可惜今年天气不佳，春节期间没怎么去远处好些长辈家拜年，作为晚辈觉得过意不去。</p>
<p>&#160;&#160;&#160;&#160; 相亲继续是春节期间一项特殊的活动。今年见识了被逼相亲，我觉得这样下去过不了几年我也要被逼着去相亲了——还好目前没有轮到我，暂时不需要考虑。</p>
<p>&#160;&#160;&#160; 返程时坐高铁到长沙，确实比较方便快捷。到北京的火车遇上卧铺改装车，中铺和上铺居然全部被“补”出去了，坐在下铺又是一晚折腾没怎么睡。</p>
<p>&#160;&#160;&#160;&#160;&#160; 马上开始春节后的工作，希望这一年顺利如意。</p>
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			<wfw:commentRss>http://liulixiang.info/blog/2012/02/02/%e6%98%a5%e8%8a%82%e5%81%87%e6%9c%9f%e5%be%ae%e5%8d%9a%e5%a4%a7%e6%94%be%e9%80%81/feed/</wfw:commentRss>
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		</item>
		<item>
		<title>2011年终小结 &amp; 2012 Wishlist</title>
		<link>http://liulixiang.info/blog/2011/12/27/2011%e7%bb%93%e8%b4%a6-2012-wishlist/</link>
		<comments>http://liulixiang.info/blog/2011/12/27/2011%e7%bb%93%e8%b4%a6-2012-wishlist/#comments</comments>
		<pubDate>Tue, 27 Dec 2011 14:28:00 +0000</pubDate>
		<dc:creator>Lixiang Liu</dc:creator>
				<category><![CDATA[Life]]></category>
		<category><![CDATA[Talk Nocence]]></category>
		<category><![CDATA[2011]]></category>
		<category><![CDATA[小结]]></category>

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		<description><![CDATA[又到了年末，继续发小结。 &#160;&#160;&#160; （此处省略流水帐889字） &#160;&#160;&#160;&#160; 2011关键字：杂务、挖坑、折腾、纠结。 &#160;&#160;&#160;&#160; 回首过去的2011，总共那么几件事： 课程学习方面上半年春季学期和夏季学期（下半年意外业余参加了ml-class），平淡地进行如没发生一样； HEST从终端界面到中间层到集成到数据各种“瞎搞”； IFP、GD、SN、RDB、RS调研和申请之类的搞了一大堆，挖了好多坑； 自己瞎折腾。 &#160;&#160;&#160;&#160; &#160;&#160;&#160;&#160;&#160; 关于年初愿望的“结账”和乱评： 1. 科研方面：好好完成手头这点活（一定不要搞砸），希望其有点进展；最好能发paper。 &#160;&#160;&#160; 这一年实验室各种事务比较多。HEST项目上花费了很多时间，除了堆砌了一堆一次性使用的prototype外无任何产出，更加不用说有多少收获；其它方面调研和项目申请都还好；科研方面更是毫无长进，paper就更别提了，最后干脆与转博说再见。 2. 深入阅读12本以上技术书籍（书架没看的都不止这个数了，想看得更多，慢慢来）。 &#160;&#160;&#160; 2011年技术书籍阅读计划以10/22完成结束，豆瓣统计显示共38本；涉猎技术类书籍12本的量倒是够了，与深入阅读相差较远。 3. 争取学会羽毛球，学学乒乓球，多多参加相关活动。 &#160;&#160;&#160;&#160; 中间打了两个多月羽毛球，没入门，才去打了两三次乒乓球；反倒是有两个多月坚持跑步，总长应该超过100k米。 4. 找个时间练字，实为练手。 &#160;&#160;&#160;&#160; 买了字帖，没动手。 5. C++：不知道是第几年把这个当目标了（今年最低目标阅读完3本相关书籍）。 &#160;&#160;&#160;&#160; C++依旧成了我没能跨过的一个坎，不到几本书倒是在开始读了…… 6. Linux内核和其它开源项目代码阅读。 &#160;&#160;&#160;&#160; 读书外真正静下心的时间不多，这个虽然偶尔有在进行，效果非常不好。 7. 补习算法和数据结构(最基本要把Algorithm Design仔细读一遍)。 &#160;&#160;&#160; Algorithm design才看了前面几章。补习就更不用说了，今年算法类比赛全部打酱油，最后以至于打铁晚节不保。 8. 完成2~5个一直想做的小玩意（blog插件、im、自搭站点、并行框架……）。 &#160;&#160;&#160;&#160;&#160;&#160; 想了想似乎做了一个？ 9. 扩大自己的生活圈子，多认识几个人（特别是女生，额），逛逛北京城，避免宅出毛病来； &#160;&#160;&#160; 圈子依然不大，不过勉强算新认识了近半打的女生（这个居然是完成得最好的一项）。只有更宅。 &#160; &#160;&#160;&#160;&#160; 2011做的事情不算少，但是与预定目标相差太远（当然现在想想某些期望值定得也偏高了），这一方面受限于不少杂务较多的客观因素，另一方面也由于自己在尝试走学术路线方面很不成功。12月中旬时就是否转博问题与导师深入地聊了整整一天，觉得今年不得不将许多精力都投入到了工程项目方面、处理各种杂事，而在研究方面断断续续，并且在重点之外浅尝辄止挖了不少坑——不时有力不从心的感觉，自己曾经追求的所谓理想的学术环境是那么遥不可及。 <a href='http://liulixiang.info/blog/2011/12/27/2011%e7%bb%93%e8%b4%a6-2012-wishlist/'>[...]</a><table class="wumii-related-items" cellspacing="0" cellpadding="2" border="0" width="100%" style="clear: both;">
    
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			<content:encoded><![CDATA[<blockquote><p>又到了年末，继续发小结。</p>
</blockquote>
<p>&#160;&#160;&#160; （此处省略流水帐889字）</p>
<p>&#160;&#160;&#160;&#160; 2011关键字：杂务、挖坑、折腾、纠结。</p>
<p>&#160;&#160;&#160;&#160; 回首过去的2011，总共那么几件事：</p>
<ul>
<li>课程学习方面上半年春季学期和夏季学期（下半年意外业余参加了ml-class），平淡地进行如没发生一样； </li>
<li>HEST从终端界面到中间层到集成到数据各种“瞎搞”； </li>
<li>IFP、GD、SN、RDB、RS调研和申请之类的搞了一大堆，挖了好多坑； </li>
<li>自己瞎折腾。 </li>
</ul>
<p>&#160;&#160;&#160;&#160; </p>
<p>&#160;&#160;&#160;&#160;&#160; 关于年初愿望的“结账”和乱评：</p>
<p><em>1. 科研方面：好好完成手头这点活（一定不要搞砸），希望其有点进展；最好能发paper。</em></p>
<p>&#160;&#160;&#160; 这一年实验室各种事务比较多。HEST项目上花费了很多时间，除了堆砌了一堆一次性使用的prototype外无任何产出，更加不用说有多少收获；其它方面调研和项目申请都还好；<u>科研方面更是毫无长进，paper就更别提了，最后干脆与转博说再见。</u></p>
<p><em>2. 深入阅读12本以上技术书籍（书架没看的都不止这个数了，想看得更多，慢慢来）。</em></p>
<p>&#160;&#160;&#160; <a href="http://book.douban.com/doulist/1125047/">2011年技术书籍阅读计划</a><u>以10/22完成结束</u>，豆瓣统计显示共38本；涉猎技术类书籍12本的量倒是够了，<u>与深入阅读相差较远</u>。</p>
<p><a href="http://liulixiang.info/blog/wp-content/uploads/2011/12/image1.png"><img style="background-image: none; border-right-width: 0px; padding-left: 0px; padding-right: 0px; display: block; float: none; border-top-width: 0px; border-bottom-width: 0px; margin-left: auto; border-left-width: 0px; margin-right: auto; padding-top: 0px" title="image" border="0" alt="image" src="http://liulixiang.info/blog/wp-content/uploads/2011/12/image_thumb1.png" width="326" height="164" /></a></p>
<p><em>3. 争取学会羽毛球，学学乒乓球，多多参加相关活动。</em></p>
<p>&#160;&#160;&#160;&#160; <u>中间打了两个多月羽毛球，没入门，才去打了两三次乒乓球；</u>反倒是有两个多月坚持跑步，总长应该超过100k米。</p>
<p><em>4. 找个时间练字，实为练手。</em></p>
<p>&#160;&#160;&#160;&#160; <u>买了字帖，没动手。</u></p>
<p><em>5. C++：不知道是第几年把这个当目标了（今年最低目标阅读完3本相关书籍）。</em></p>
<p>&#160;&#160;&#160;&#160; <u>C++依旧成了我没能跨过的一个坎</u>，不到几本书倒是在开始读了……</p>
<p><em>6. Linux内核和其它开源项目代码阅读。</em></p>
<p>&#160;&#160;&#160;&#160; 读书外真正静下心的时间不多，这个虽然<u>偶尔有在进行，效果非常不好</u>。</p>
<p><em>7. 补习算法和数据结构(最基本要把Algorithm Design仔细读一遍)。</em></p>
<p>&#160;&#160;&#160; <u>Algorithm design才看了前面几章。补习就更不用说了，今年算法类比赛全部打酱油，最后以至于打铁晚节不保。</u></p>
<p><em>8. 完成2~5个一直想做的小玩意（blog插件、im、自搭站点、并行框架……）。</em></p>
<p>&#160;&#160;&#160;&#160;&#160;&#160; <u>想了想似乎做了一个？</u></p>
<p><em>9. 扩大自己的生活圈子，多认识几个人（特别是女生，额），逛逛北京城，避免宅出毛病来；</em></p>
<p>&#160;&#160;&#160; 圈子依然不大，不过勉强算新认识了近半打的女生（这个居然是完成得最好的一项）。<u>只有更宅</u>。</p>
<p>&#160;</p>
<p>&#160;&#160;&#160;&#160; 2011做的事情不算少，但是与预定目标相差太远（当然现在想想某些期望值定得也偏高了），这一方面受限于不少杂务较多的客观因素，另一方面也由于自己在尝试走学术路线方面很不成功。12月中旬时就是否转博问题与导师深入地聊了整整一天，觉得今年不得不将许多精力都投入到了工程项目方面、处理各种杂事，而在研究方面断断续续，并且在重点之外浅尝辄止挖了不少坑——不时有力不从心的感觉，自己曾经追求的所谓理想的学术环境是那么遥不可及。</p>
<p>&#160;&#160;&#160;&#160;&#160;&#160; 账面上的无所斩获，带来的副产品是对生活、对自己等的不同体验。能够很清楚地了解到自己更享受全心全意追求的过程，追求平稳的同时在自己所感兴趣的领域特别能折腾；离自己并不远的英年早逝案例以及个人与死神擦肩而过的经历让自己更加敬畏生命，更加珍惜给予的每一天。</p>
<p><font color="#ff0000"><strong>新一年的展望</strong></font></p>
<p>&#160;&#160;&#160; 继续列愿望，如果2012世界末日没有成真的话，一年后再来清算对比吧。</p>
<p>&#160;&#160;&#160; 总体而言2012年目标会明确很多：实验室方面将以填坑为主，顺带满足一下自己的学术小追求；个人方面则找工作为是一个短期而且重要的事项；还有就是在可控制范围内适当折腾；另外有意识养成一些小习惯。</p>
<p>&#160;&#160;&#160; wishlist：</p>
<p>1. 填坑：HEST收尾；IFP；主导完成GD；配合师兄弄一下SN；RDB以及其他看具体情况。</p>
<p>2. 小追求：pgm-class和一点点数学类补习；学习写论文，9月前把RS和IFP搞定投出。</p>
<p>3. 找工作：争取迅速搞定，最多四个月用于准备和参加校招（不合理愿望：不想折腾，面不到3家就定下来）。</p>
<p>4. C++。</p>
<p>5. PLKA。</p>
<p>6. 英语：写作方面writing以能产出paper为准；口语以能外企面试为准（到时自己测一下）；背背GRE单词（也许真去考一次）。</p>
<p>7. 用心折腾，祝好运。</p>
<p>8. 小习惯：跑步（500km）、练字（60小时）。</p>
<p>9. 2012yy书单20本 <a href="http://book.douban.com/doulist/1390914/">http://book.douban.com/doulist/1390914/</a></p>
<p>10. 凑数?:理想情况下遇到生命中的那个人。</p>
<p>&#160;</p>
<p>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; 2011年12月27日 草稿于实验室年会@花水湾</p>
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			<wfw:commentRss>http://liulixiang.info/blog/2011/12/27/2011%e7%bb%93%e8%b4%a6-2012-wishlist/feed/</wfw:commentRss>
		<slash:comments>4</slash:comments>
		</item>
		<item>
		<title>利用.htaccess文件将rss&#8220;广播&#8221;到多个地址上</title>
		<link>http://liulixiang.info/blog/2011/12/24/%e5%88%a9%e7%94%a8-htaccess%e6%96%87%e4%bb%b6%e5%b0%86rss%e5%b9%bf%e6%92%ad%e5%88%b0%e5%a4%9a%e4%b8%aa%e5%9c%b0%e5%9d%80%e4%b8%8a/</link>
		<comments>http://liulixiang.info/blog/2011/12/24/%e5%88%a9%e7%94%a8-htaccess%e6%96%87%e4%bb%b6%e5%b0%86rss%e5%b9%bf%e6%92%ad%e5%88%b0%e5%a4%9a%e4%b8%aa%e5%9c%b0%e5%9d%80%e4%b8%8a/#comments</comments>
		<pubDate>Sat, 24 Dec 2011 14:13:12 +0000</pubDate>
		<dc:creator>Lixiang Liu</dc:creator>
				<category><![CDATA[Software & Library]]></category>
		<category><![CDATA[feed]]></category>
		<category><![CDATA[rss]]></category>

		<guid isPermaLink="false">http://liulixiang.info/blog/2011/12/24/%e5%88%a9%e7%94%a8-htaccess%e6%96%87%e4%bb%b6%e5%b0%86rss%e5%b9%bf%e6%92%ad%e5%88%b0%e5%a4%9a%e4%b8%aa%e5%9c%b0%e5%9d%80%e4%b8%8a/</guid>
		<description><![CDATA[博客迁移后，rss地址产生变化，决定不放弃订阅原来地址的&#8221;忠实读者”——这个blog的更新将继续推送到你们面前的阅读器。 &#160;&#160;&#160;&#160; 学了下htaccess文件的写法和用法后想到了上面这个应用场景。利用的是通过配置.htaccess文件可以对URL进行重定向的功能。在http://liulixiang.info对应目录下建立一个feed文件夹，在里面建立一个“.htaccess”文件，将所有URL都重定向至http://liulixiang.info/blog/feed。内容如下： DirectoryIndex http://liulixiang.info/blog/feedOptions All -IndexesErrorDocument 401 http://liulixiang.info/blog/feedErrorDocument 403 http://liulixiang.info/blog/feedErrorDocument 404 http://liulixiang.info/blog/feedErrorDocument 500 http://liulixiang.info/blog/feed &#160;&#160;&#160;&#160; 于是创建了一个“假”的feed，订阅了原来blog的用户也能看到http://liulixiang.info/blog的更新了。 &#160;&#160;&#160;&#160; 附：关于htaccess文件写法和用法 http://www.zzbaike.com/wiki/Htaccess<table class="wumii-related-items" cellspacing="0" cellpadding="2" border="0" width="100%" style="clear: both;">
    
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			<content:encoded><![CDATA[<blockquote><p>博客迁移后，rss地址产生变化，决定不放弃订阅原来地址的&#8221;忠实读者”——这个blog的更新将继续推送到你们面前的阅读器。</p>
</blockquote>
<p>&#160;&#160;&#160;&#160; 学了下htaccess文件的写法和用法后想到了上面这个应用场景。利用的是通过配置.htaccess文件可以对URL进行重定向的功能。在<a href="http://liulixiang.info">http://liulixiang.info</a>对应目录下建立一个feed文件夹，在里面建立一个“.htaccess”文件，将所有URL都重定向至<a href="http://liulixiang.info/blog/feed">http://liulixiang.info/blog/feed</a>。内容如下：</p>
<p>
<pre>

DirectoryIndex http://liulixiang.info/blog/feedOptions All -IndexesErrorDocument 401 http://liulixiang.info/blog/feedErrorDocument 403 http://liulixiang.info/blog/feedErrorDocument 404 http://liulixiang.info/blog/feedErrorDocument 500 http://liulixiang.info/blog/feed
</pre>
<p>&#160;&#160;&#160;&#160; 于是创建了一个“假”的feed，订阅了原来blog的用户也能看到<a href="http://liulixiang.info/blog">http://liulixiang.info/blog</a>的更新了。</p>
<p>&#160;&#160;&#160;&#160; 附：关于htaccess文件写法和用法 <a href="http://www.zzbaike.com/wiki/Htaccess">http://www.zzbaike.com/wiki/Htaccess</a></p>
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			<wfw:commentRss>http://liulixiang.info/blog/2011/12/24/%e5%88%a9%e7%94%a8-htaccess%e6%96%87%e4%bb%b6%e5%b0%86rss%e5%b9%bf%e6%92%ad%e5%88%b0%e5%a4%9a%e4%b8%aa%e5%9c%b0%e5%9d%80%e4%b8%8a/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
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		<item>
		<title>Fedora15下安装Oracle 11g Release 2</title>
		<link>http://liulixiang.info/blog/2011/12/24/fedora15%e4%b8%8b%e5%ae%89%e8%a3%85oracle-11g-release-2/</link>
		<comments>http://liulixiang.info/blog/2011/12/24/fedora15%e4%b8%8b%e5%ae%89%e8%a3%85oracle-11g-release-2/#comments</comments>
		<pubDate>Sat, 24 Dec 2011 13:25:25 +0000</pubDate>
		<dc:creator>Lixiang Liu</dc:creator>
				<category><![CDATA[Software & Library]]></category>
		<category><![CDATA[Oracle]]></category>
		<category><![CDATA[数据库]]></category>

		<guid isPermaLink="false">http://liulixiang.info/blog/2011/12/24/fedora15%e4%b8%8b%e5%ae%89%e8%a3%85oracle-11g-release-2/</guid>
		<description><![CDATA[搞定一例，后面可能还得装，先备忘。 三个参考的安装文档（理论上按任一文档执行安装均可）： 官方的快速安装文档： http://www.oracle.com/pls/db111/portal.portal_db?selected=11 用其中的《Database Quick Installation Guide for Linux x86-64》：http://www.oracle.com/pls/db111/to_pdf?pathname=install.111/b32285.pdf 《Linux(Fedora 12,13&#124;32 64)安装Oracle Database 11gR2》：http://www.blogjava.net/xiangjava/archive/2010/06/23/324091.html 带图解的安装过程： http://wenku.baidu.com/view/a4bddafb770bf78a6529549c.html &#160; 下载安装包： 在oracle.com上注册用户并登陆，下载x86_64对应安装文件，地址： http://www.oracle.com/technetwork/database/enterprise-edition/downloads/index.html?ssSourceSiteId=ocomen 文件较大（两个文件均为1G左右），建议用迅雷，下载后先cksum比对以防下载文件错误（血的教训啊） $ cksum linux.x64_11gR2_database_1of2.zip # 应该输出：3152418844 1239269270 linux.x64_11gR2_database_1of2.zip $ cksum linux.x64_11gR2_database_2of2.zip # 应该输出：3669256139 1111416131 linux.x64_11gR2_database_2of2.zip 解压时记得打log，在log中grep一下是否有CRC error之类错误——如果运气不佳，可以通过拼凑的方法将多个有错误的安装包合并成一份完整的安装包。 $ unzip linux.x64_11gR2_database_1of2.zip &#38;&#62;unzip1.log $ unzip linux.x64_11gR2_database_2of2.zip &#38;&#62;unzip2.log 安装前需要的配置（根据官方安装文档一步一步来即可）——用root账号登陆进行相关操作： 检查系统是否满足基本条件（软硬件配置、xhost、某些软件包） 软硬件配置越高越好——最低配置是？ 检查host： $ xhost fully_qualified_remote_host_name 需预先安装的软件包： <a href='http://liulixiang.info/blog/2011/12/24/fedora15%e4%b8%8b%e5%ae%89%e8%a3%85oracle-11g-release-2/'>[...]</a><table class="wumii-related-items" cellspacing="0" cellpadding="2" border="0" width="100%" style="clear: both;">
    
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			<content:encoded><![CDATA[<blockquote><p>搞定一例，后面可能还得装，先备忘。</p>
</blockquote>
<p>三个参考的安装文档（理论上按任一文档执行安装均可）：</p>
<ul>
<li>官方的快速安装文档：     <br />http://www.oracle.com/pls/db111/portal.portal_db?selected=11      <br />用其中的《Database Quick Installation Guide for Linux x86-64》：<a href="http://www.oracle.com/pls/db111/to_pdf?pathname=install.111/b32285.pdf">http://www.oracle.com/pls/db111/to_pdf?pathname=install.111/b32285.pdf</a></li>
<li>《Linux(Fedora 12,13|32 64)安装Oracle Database 11gR2》：http://www.blogjava.net/xiangjava/archive/2010/06/23/324091.html</li>
<li>带图解的安装过程：     <br /><a href="http://wenku.baidu.com/view/a4bddafb770bf78a6529549c.html">http://wenku.baidu.com/view/a4bddafb770bf78a6529549c.html</a></li>
</ul>
<p>&#160;</p>
<p>下载安装包：   <br />在oracle.com上注册用户并登陆，下载x86_64对应安装文件，地址：    <br /><a href="http://www.oracle.com/technetwork/database/enterprise-edition/downloads/index.html?ssSourceSiteId=ocomen">http://www.oracle.com/technetwork/database/enterprise-edition/downloads/index.html?ssSourceSiteId=ocomen</a></p>
<p>文件较大（两个文件均为1G左右），建议用迅雷，下载后先cksum比对以防下载文件错误（血的教训啊）</p>
<pre>

$ cksum linux.x64_11gR2_database_1of2.zip 

# 应该输出：3152418844 1239269270 linux.x64_11gR2_database_1of2.zip

$ cksum linux.x64_11gR2_database_2of2.zip 

# 应该输出：3669256139 1111416131 linux.x64_11gR2_database_2of2.zip
</pre>
<p>解压时记得打log，在log中grep一下是否有CRC error之类错误——如果运气不佳，可以通过拼凑的方法将多个有错误的安装包合并成一份完整的安装包。</p>
<pre>

$ unzip linux.x64_11gR2_database_1of2.zip &amp;&gt;unzip1.log

$ unzip linux.x64_11gR2_database_2of2.zip &amp;&gt;unzip2.log
</pre>
<p>安装前需要的配置（根据官方安装文档一步一步来即可）——用root账号登陆进行相关操作：</p>
<p>检查系统是否满足基本条件（软硬件配置、xhost、某些软件包）<br />
  <br />软硬件配置越高越好——最低配置是？</p>
<p>检查host：</p>
<pre>$ xhost fully_qualified_remote_host_name</pre>
<p>需预先安装的软件包：</p>
<pre>binutils-2.17.50.0.6
compat-libstdc++-33-3.2.3
compat-libstdc++-33-3.2.3 (32 bit)
elfutils-libelf-0.125
elfutils-libelf-devel-0.125
gcc-4.1.1
gcc-c++-4.1.1
glibc-2.5-12
glibc-2.5-12 (32 bit)
glibc-common-2.5
glibc-devel-2.5
glibc-devel-2.5-12 (32 bit)
libaio-0.3.106
libaio-0.3.106 (32 bit)
libaio-devel-0.3.106
libgcc-4.1.1
libgcc-4.1.1 (32 bit)
libstdc++-4.1.1
libstdc++-4.1.1 (32 bit)
libstdc++-devel 4.1.1
make-3.81
numactl-devel-0.9.8.x86_64
sysstat-7.0.0</pre>
<p>都yum install按提示安装最新版即可</p>
<p>&#160;</p>
<p>另外得安装ODBC：</p>
<pre>$ yum install unixODBC unixODBC-devel</pre>
<p>创建相应用户和群组：</p>
<pre>$ groupadd oinstall
$ groupadd dba
$ useradd -g oinstall -G dba oracle</pre>
<p>配置系统环境：将下列参数添加至/etc/sysctl.conf末尾，然后运行“sysctl -p”命令</p>
<pre>#Instal Oracle Config
fs.aio-max-nr = 1048576
fs.file-max = 6815744
kernel.shmall = 2097152
kernel.shmmax = 2147483648
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
net.ipv4.ip_local_port_range = 9000 65500
net.core.rmem_default = 262144
net.core.rmem_max = 4194304
net.core.wmem_default = 262144
net.core.wmem_max = 1048576</pre>
<p>修改shell限制：<br />
  <br />在&quot;/etc/security/limits.conf&quot;末尾添加以下内容：</p>
<pre>#Install Oracle Config
oracle              soft    nproc   2047
oracle              hard    nproc   16384
oracle              soft    nofile  1024
oracle              hard    nofile  65536</pre>
<p>创建相关文件并修改权限：</p>
<pre>$ mkdir -p /mount_point/app/
$ chown -R oracle:oinstall /mount_point/app/
$ chmod -R 775 /mount_point/app/</pre>
<p>设置环境变量：修改oracle主目录下的.bash_profile文件：</p>
<pre># Oracle Settings
export TMP=/tmp;
export TMPDIR=$TMP;&#160;&#160; export ORACLE_HOSTNAME=localhost.localdomain;
export ORACLE_BASE=/u01/app/oracle;
export ORACLE_HOME=$ORACLE_BASE/product/11.2.0/dbhome_1;
export ORACLE_SID=DB11G;
export ORACLE_TERM=xterm;
export ORACLE_UNQNAME=DB11G;
export PATH=/usr/sbin:$ORACLE_HOME/bin:$PATH;&#160;&#160; export LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib;
export CLASSPATH=$ORACLE_HOME/JRE:$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib;&#160;&#160; if [ $USER = &quot;oracle&quot; ]; then
  if [ $SHELL = &quot;/bin/ksh&quot; ]; then
    ulimit -p 16384
    ulimit -n 65536
  else
    ulimit -u 16384 -n 65536
  fi
fi&#160;&#160; # Oracle terminal Chinese fonts 2010-09-10 解决sqlplus 显示中文为 ???
export NLS_LANG=&quot;SIMPLIFIED CHINESE_CHINA.UTF8&quot;</pre>
<p>以oracle身份登录运行runInstaller安装（若为中文操作系统则文字全是乱码？按第三个文档的图解过程一步一步选择即可）</p>
<p>&#160;</p>
<p>安装完成后，编辑/etc/oratab文件，设置下面一行的标志为&quot;Y&quot;:</p>
<pre>orcl:/home/oracle/app/oracle/product/11.2.0/dbhome_1:Y</pre>
<p>&#160;</p>
<p>安装成功后运行相关命令进行管理：</p>
<pre>$ sqlplus / as sysdba #登录OEM控制台进行管理
$ dbstart #启动和关闭Oracle
$ dbshut
$ emctl start dbconsole #启动和停止 Oracle 企业管理器数据库控制：
$ emctl stop dbconsole
$ netmgr
$ netca
$ dbca
$ lbuilder</pre>
<p>（具体用法以及其它命令具体参见相关文档或书籍）</p>
<p>&#160;</p>
<p>&#160;</p>
<p>安装可能遇到的问题和错误应对方案：</p>
<ul>
<li>必须安装的包比如unixODBC等全已经安装仍然提示未安装：忽略即可。</li>
<li>pdksh包可以不安装，选择忽略。</li>
<li>invalid entry size：说明下载压缩文件加压后又文件冲突不对？<br />
    <br />参考：<a href="https://forums.oracle.com/forums/thread.jspa?threadID=2135953">https://forums.oracle.com/forums/thread.jspa?threadID=2135953</a></li>
<li>oversubscribed dynamic bit lengths tree：java环境不对？</li>
<li>fedora特有的“agent nmhs”错误：出现agent nmhs问题后找到$ORACLE_HOME/sysman/lib/ins_emagent.mk文件，在文件里找到$(MK_EMAGENT_NMECTL)字符串修改为&quot; -lnnz11&quot;（注意中间有空格）。然后点重试就可以解决了。<br />
    <br />参考：<a href="http://www.sysdbaonline.com/2010/09/11gr2-install-fails-on-fedora-13">http://www.sysdbaonline.com/2010/09/11gr2-install-fails-on-fedora-13</a></li>
<li>Oracle dbstart不能启动的问题：将文件$ORACLE_HOME/bin/dbstart中“ORACLE_HOME_LISTNER=$1”这一行注释掉，然后修改/home/oracle/.bash_profile，添加export ORACLE_HOME_LISTNER=$ORACLE_HOME一句（然后source使生效）。<br />
    <br />参考：<a href="http://betterliu.blog.51cto.com/339062/103141">http://betterliu.blog.51cto.com/339062/103141</a></li>
</ul>
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		<title>只能够挺胸勇往直前</title>
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		<pubDate>Thu, 22 Dec 2011 15:30:46 +0000</pubDate>
		<dc:creator>liulixiang</dc:creator>
				<category><![CDATA[Life]]></category>
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			<content:encoded><![CDATA[<p>&nbsp;</p>
<p>为何要纠结不定，久久徘徊在岔道？</p>
<p>无论如何摇摆不定的纠结，不同的路最终只能走一条。</p>
<p>另一条是否比自己当初选的这一条要好，你永远不可能知道。</p>
<p>后悔药只是告诉我们自己可以做得更好，不要害怕跌倒。</p>
<p>我们需要做的是，在选择的路上做到自己的最好。</p>
<p>让选择尘埃落定，从此向着下一个明确的目标。</p>
<p>从此离开羁绊，快速奔跑。</p>
<p>&nbsp;</p>
<p><embed type="application/x-shockwave-flash" width="257" height="33" src="http://www.xiami.com/widget/0_383274/singlePlayer.swf" wmode="transparent"></embed></p>
<p>&nbsp;</p>
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			<wfw:commentRss>http://liulixiang.info/blog/2011/12/22/%e5%8f%aa%e8%83%bd%e5%a4%9f%e6%8c%ba%e8%83%b8%e5%8b%87%e5%be%80%e7%9b%b4%e5%89%8d/feed/</wfw:commentRss>
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		<title>ml-class之后纪念</title>
		<link>http://liulixiang.info/blog/2011/12/19/ml-class%e4%b9%8b%e5%90%8e%e7%ba%aa%e5%bf%b5/</link>
		<comments>http://liulixiang.info/blog/2011/12/19/ml-class%e4%b9%8b%e5%90%8e%e7%ba%aa%e5%bf%b5/#comments</comments>
		<pubDate>Sun, 18 Dec 2011 16:26:00 +0000</pubDate>
		<dc:creator>Lixiang Liu</dc:creator>
				<category><![CDATA[Reading Notes]]></category>
		<category><![CDATA[机器学习]]></category>

		<guid isPermaLink="false">http://liulixiang.info/blog/2011/12/19/ml-class%e4%b9%8b%e5%90%8e%e7%ba%aa%e5%bf%b5/</guid>
		<description><![CDATA[&#160;&#160;&#160; 十月初开始Standford的“机器学习”开放课程学习，跟随着大家上到这周，最后一组视频和练习做完，发个日志纪念一下。 &#160;&#160;&#160; 由于本科阶段初期完整地上过三门卡内基梅隆的SSD（软件系统开发）课程，并偶尔听听mit的算法导论课，所以很快适应了这次课程中的视频讲解、课后回顾题、编程练习等模式——当然ml-class的每课由一系列10分钟左右的短视频构成，加之Andrew的口音和讲解都比较好理解，编程练习贴近实际并具有现时交互设计独具趣味，能加深对对应内容的理解……总之，每周都花费5个小时以上的时间取得了好些收获，机器学习方面弥补了去年课程中经常缺席最后混过的遗憾，勉强算入门吧：对机器学习的兴趣有增无减，对梯度下降和神经网路、等的理解加深不少，Octave/Matlab的基本使用，……作为一门偏应用的课程，相应的效果基本达到。 &#160;&#160;&#160; 当然，限于课程范围和时间，不少相关理论还未涉及，理论方面深度自然是还不够足了，个人编程方面没过足瘾啊，接下来需要个人进一步摸索了……等等方面需要向crackcell学习，如果有时间精力的话，在最优化理论、R、LTR等方面开阔下眼界，当然个人方面可能需要做做OL了。另外，个人数学基础严重不足，当时也没选研究生院的《随机过程》，接下来应该是跟一月份开始的“概率图模型”开放课程了，未知又会凑得多少人一起。 &#160;&#160;&#160;&#160; 最后，每人兴趣不尽相同，向有志学习的人推荐一下相关课程（“机器学习”在一月份会继续开课），下面是列表：<table class="wumii-related-items" cellspacing="0" cellpadding="2" border="0" width="100%" style="clear: both;">
    
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			<content:encoded><![CDATA[<p>&#160;&#160;&#160; <a href="http://liulixiang.info/blog/2011/10/25/%e6%96%af%e5%9d%a6%e7%a6%8f%e5%a4%a7%e5%ad%a6%e5%bc%80%e6%94%be%e8%af%be%e7%a8%8b%e6%9c%ba%e5%99%a8%e5%ad%a6%e4%b9%a0/">十月初开始Standford的“机器学习”开放课程学习</a>，跟随着大家上到这周，最后一组视频和练习做完，发个日志纪念一下。</p>
<p>&#160;&#160;&#160; 由于本科阶段初期完整地上过三门卡内基梅隆的<a href="http://www.icarnegie.com/Programs/CourseType2.php">SSD（软件系统开发）课程</a>，并偶尔听听mit的算法导论课，所以很快适应了这次课程中的视频讲解、课后回顾题、编程练习等模式——当然ml-class的每课由一系列10分钟左右的短视频构成，加之Andrew的口音和讲解都比较好理解，编程练习贴近实际并具有现时交互设计独具趣味，能加深对对应内容的理解……总之，每周都花费5个小时以上的时间取得了好些收获，机器学习方面弥补了去年课程中经常缺席最后混过的遗憾，勉强算入门吧：对机器学习的兴趣有增无减，对梯度下降和神经网路、等的理解加深不少，Octave/Matlab的基本使用，……作为一门偏应用的课程，相应的效果基本达到。</p>
<p>&#160;&#160;&#160; 当然，限于课程范围和时间，不少相关理论还未涉及，理论方面深度自然是还不够足了，个人编程方面没过足瘾啊，接下来需要个人进一步摸索了……等等方面需要向<a href="http://blog.crackcell.com/">crackcell</a>学习，如果有时间精力的话，在最优化理论、R、LTR等方面开阔下眼界，当然个人方面可能需要做做OL了。另外，个人数学基础严重不足，当时也没选研究生院的《随机过程》，接下来应该是跟一月份开始的<a href="http://www.pgm-class.org/">“概率图模型”开放课程</a>了，未知又会凑得多少人一起。</p>
<p>&#160;&#160;&#160;&#160; 最后，每人兴趣不尽相同，向有志学习的人推荐一下相关课程（“机器学习”在一月份会继续开课），下面是列表：</p>
<p><a href="http://liulixiang.info/blog/wp-content/uploads/2011/12/image.png"><img style="background-image: none; border-bottom: 0px; border-left: 0px; padding-left: 0px; padding-right: 0px; display: inline; border-top: 0px; border-right: 0px; padding-top: 0px" title="image" border="0" alt="image" src="http://liulixiang.info/blog/wp-content/uploads/2011/12/image_thumb.png" width="684" height="363" /></a></p>
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		<title>[吐槽和感悟一箩筐]关于研究：衣带渐宽终不悔，为伊消得人憔悴</title>
		<link>http://liulixiang.info/blog/2011/11/13/%e5%90%90%e6%a7%bd%e5%92%8c%e6%84%9f%e6%82%9f%e4%b8%80%e7%ae%a9%e7%ad%90%e5%85%b3%e4%ba%8e%e7%a0%94%e7%a9%b6%ef%bc%9a%e8%a1%a3%e5%b8%a6%e6%b8%90%e5%ae%bd%e7%bb%88%e4%b8%8d%e6%82%94%ef%bc%8c%e4%b8%ba/</link>
		<comments>http://liulixiang.info/blog/2011/11/13/%e5%90%90%e6%a7%bd%e5%92%8c%e6%84%9f%e6%82%9f%e4%b8%80%e7%ae%a9%e7%ad%90%e5%85%b3%e4%ba%8e%e7%a0%94%e7%a9%b6%ef%bc%9a%e8%a1%a3%e5%b8%a6%e6%b8%90%e5%ae%bd%e7%bb%88%e4%b8%8d%e6%82%94%ef%bc%8c%e4%b8%ba/#comments</comments>
		<pubDate>Sun, 13 Nov 2011 13:14:00 +0000</pubDate>
		<dc:creator>Lixiang Liu</dc:creator>
				<category><![CDATA[Life]]></category>
		<category><![CDATA[Research]]></category>
		<category><![CDATA[Talk Nocence]]></category>
		<category><![CDATA[科研]]></category>

		<guid isPermaLink="false">http://liulixiang.info/blog/2011/11/13/%e5%90%90%e6%a7%bd%e5%92%8c%e6%84%9f%e6%82%9f%e4%b8%80%e7%ae%a9%e7%ad%90%e5%85%b3%e4%ba%8e%e7%a0%94%e7%a9%b6%ef%bc%9a%e8%a1%a3%e5%b8%a6%e6%b8%90%e5%ae%bd%e7%bb%88%e4%b8%8d%e6%82%94%ef%bc%8c%e4%b8%ba/</guid>
		<description><![CDATA[最近关于工作、关于研究、关于算法和竞赛、关于男女、关于名人过世、关于生活……各种纠结和想吐槽的东西很多，就发一个系列算了。 关于研究和关于读博：当年具有保研资格，受一系列因素影响“临时”决定不放弃保研，作为一个在保研时傻傻地着重向面试的老师强调要根据自己的体会决定是否读博的同学，自两年前来到计算所起就用心地体会这里的“研究”和考察博士们的行为。 很早就知道在公认的“混”研究之外真正的research绝对是智慧经过很大精力等的结晶（很多时候还需要运气），合格的博士学位不是那么好拿的。我很赞同导师的一个说法就是：作为博士要有“会当凌绝顶，一览众山小”的决心，一旦要做就得做到自己所做领域的顶尖水平，然后至少能对该领域的进步和发展有所推动，而达到该水平的标志之一就是将成果发表在该领域相关的顶级会议上，毕竟paper是少有的几项能展示研究成果的方式之一。 在考察博士的行为方面，组里几位博士师兄师姐们都是相当好的范本，两年来看着他们为论文为毕业所困就能深刻地感受到博士的不易，现在他们终于“熬”到了就要毕业的时候。然而使我对博士接触更深的是现在的室友，他俩由于各种原因在博士初期的研究进展得很不顺，最后不得不重新来过，但是他们都很超然，保持对研究的热情，非常勤奋非常努力，他们在少有的科研之外的时间里坚持锻炼、用自己的兴趣调剂着枯燥生活，这些都让我感触良多，另外每次与他们讨论都受益匪浅。 随着对研究和博士认识的加深，使得某天UA乱搞组里对某师弟“从长远看，3年读研体现了哪些价值？”的回答基本能体现我目前的认识：读研究生与去公司工作是两条完全不同的路，所经历的事情不一样，重点是个人要享受这一过程。 个人在研究工作方面非常糟糕：变成全职RA的这几个月以来，除了做着基本“毫无技术含量”的工程之外，在研究方面基本无所进展。想想读研以来从视频图像、前端界面、数据处理、计算模型、消息网络、调度、网络部署、后端存储……都做做调研浅尝了一遍，然而到处挖浅坑而不出水，终于有点急了。最近不得不收缩范围选了三个点深挖，希望自己好运吧。<table class="wumii-related-items" cellspacing="0" cellpadding="2" border="0" width="100%" style="clear: both;">
    
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</table>]]></description>
			<content:encoded><![CDATA[<blockquote><p>最近关于工作、关于研究、关于算法和竞赛、关于男女、关于名人过世、关于生活……各种纠结和想吐槽的东西很多，就发一个系列算了。</p></blockquote>
<p><strong><span style="color: #ff0000;">关于研究和关于读博：</span></strong>当年具有保研资格，<a href="http://liulixiang.info/blog/2009/09/29/who-knows-what-happens-next/">受一系列因素影响“临时”决定不放弃保研</a>，作为一个在保研时傻傻地着重向面试的老师强调要根据自己的体会决定是否读博的同学，自两年前来到计算所起就用心地体会这里的“研究”和考察博士们的行为。</p>
<p>很早就知道在公认的“混”研究之外真正的research绝对是智慧经过很大精力等的结晶（很多时候还需要运气），合格的博士学位不是那么好拿的。我很赞同导师的一个说法就是：作为博士要有“会当凌绝顶，一览众山小”的决心，一旦要做就得做到自己所做领域的顶尖水平，然后至少能对该领域的进步和发展有所推动，而达到该水平的标志之一就是将成果发表在该领域相关的顶级会议上，毕竟paper是少有的几项能展示研究成果的方式之一。</p>
<p>在考察博士的行为方面，组里几位博士师兄师姐们都是相当好的范本，两年来看着他们为论文为毕业所困就能深刻地感受到博士的不易，现在他们终于“熬”到了就要毕业的时候。然而使我对博士接触更深的是现在的室友，他俩由于各种原因在博士初期的研究进展得很不顺，最后不得不重新来过，但是他们都很超然，保持对研究的热情，非常勤奋非常努力，他们在少有的科研之外的时间里坚持锻炼、用自己的兴趣调剂着枯燥生活，这些都让我感触良多，另外每次与他们讨论都受益匪浅。</p>
<p>随着对研究和博士认识的加深，使得某天UA乱搞组里对某师弟“从长远看，3年读研体现了哪些价值？”的回答基本能体现我目前的认识：读研究生与去公司工作是两条完全不同的路，所经历的事情不一样，重点是个人要享受这一过程。</p>
<p>个人在研究工作方面非常糟糕：变成全职RA的这几个月以来，除了做着基本“毫无技术含量”的工程之外，在研究方面基本无所进展。想想读研以来从视频图像、前端界面、数据处理、计算模型、消息网络、调度、网络部署、后端存储……都做做调研浅尝了一遍，然而到处挖浅坑而不出水，终于有点急了。最近不得不收缩范围选了三个点深挖，希望自己好运吧。</p>
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		<title>[吐槽和感悟一箩筐]关于算法和竞赛：开心享受就好</title>
		<link>http://liulixiang.info/blog/2011/11/13/%e5%90%84%e7%a7%8d%e5%90%90%e6%a7%bd%e5%92%8c%e6%84%9f%e6%82%9f%e4%b8%80%e7%ae%a9%e7%ad%90%e4%b9%8b%e4%ba%8c%ef%bc%9a%e5%85%b3%e4%ba%8e%e7%ae%97%e6%b3%95%e5%92%8c%e7%ab%9e%e8%b5%9b/</link>
		<comments>http://liulixiang.info/blog/2011/11/13/%e5%90%84%e7%a7%8d%e5%90%90%e6%a7%bd%e5%92%8c%e6%84%9f%e6%82%9f%e4%b8%80%e7%ae%a9%e7%ad%90%e4%b9%8b%e4%ba%8c%ef%bc%9a%e5%85%b3%e4%ba%8e%e7%ae%97%e6%b3%95%e5%92%8c%e7%ab%9e%e8%b5%9b/#comments</comments>
		<pubDate>Sun, 13 Nov 2011 12:25:00 +0000</pubDate>
		<dc:creator>Lixiang Liu</dc:creator>
				<category><![CDATA[Algorithms & Problem Solving]]></category>
		<category><![CDATA[Life]]></category>
		<category><![CDATA[Talk Nocence]]></category>
		<category><![CDATA[算法竞赛]]></category>

		<guid isPermaLink="false">http://liulixiang.info/blog/2011/11/13/%e5%90%84%e7%a7%8d%e5%90%90%e6%a7%bd%e5%92%8c%e6%84%9f%e6%82%9f%e4%b8%80%e7%ae%a9%e7%ad%90%e4%b9%8b%e4%ba%8c%ef%bc%9a%e5%85%b3%e4%ba%8e%e7%ae%97%e6%b3%95%e5%92%8c%e7%ab%9e%e8%b5%9b/</guid>
		<description><![CDATA[最近关于工作、关于研究、关于算法和竞赛、关于名人过世、关于生活……各种纠结和想吐槽的东西很多，就发一个系列算了。 关于算法和竞赛：由于本科时花了很大一部分时间在算法方面（主要指面向ICPC的算法），并作为一个半吊子的菜鸟在各种较低级别的算法竞赛中打酱油（即成绩平平），另外来到科苑后又机缘巧合地时隔两年&#8221;诈尸&#8221;出去，然后今年又“领队”并又不得不凑数参与了。如同这辈子深深地打了一个标签，可能终身藕断还丝连。 个人水平较低，即使在个人所谓“巅峰”时期也成绩一般，至08以后断断续续没怎么针对性地练习，最多在某些时候为了热身一下，今年更是干脆热身都免了然后果断“悲剧”地拿铁了，虽然有身体特别不适等等因素，但是确实是太久不练生疏得厉害了。想想多年以后还在参赛，有时候想起怀念那时的集训生活，确实挺枯燥的，但是有不少快乐的记忆（苦中作乐），从“for fun”的角度来说还挺不错的。 而且觉得参赛的可以与一大堆又共同兴趣的人交流，能够从其他人那里学到许多；另外也可以出去走走，竞技之余更多的是可以到处玩玩，有时候会会朋友啥的挺不错的，感觉开心就好。 最后，GUCAS晋级final，今年的各种瞎忙活之后还是挺高兴的。看到WHUACM和UA乱搞组不断进步，虽然跟自己关系不是很大但是心情还是很激动，很多时候做某些事看起来很傻，其实是一种情怀。为了自己说喜欢的事情努力一把或贡献一点力量，越来越觉得自己对于这种过程很享受很怀念了。 吐槽两句： 有人总结说有三种算法：ICPC竞赛中的算法、面试中的算法、项目中的算法。个人愿意再添加一类：论文中的算法。关于这四种算法有用无用就是智者见智了。 最近fenng、梁斌等人在抛ACM（其实是ICPC）无用论，ACMer出了算法竞赛的圈子后无所作为，其实明眼人都知道这是他们在自我炒作博眼球。事实是最好的证明，就不好说啥了。 有时候被各种打击偶尔难过，对于各种失败可以做到很淡定地接受（也可以说是麻木）。目前对于上一条所谓的指责还是不能做到完全无视，有时不免感到压力很大。以后在半吊子算法能力之外，各方面能力都成长起来，就可以自信一点了。<table class="wumii-related-items" cellspacing="0" cellpadding="2" border="0" width="100%" style="clear: both;">
    
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			<content:encoded><![CDATA[<blockquote><p>最近关于工作、关于研究、关于算法和竞赛、关于名人过世、关于生活……各种纠结和想吐槽的东西很多，就发一个系列算了。</p>
</blockquote>
<p><font color="#ff0000"><strong>关于算法和竞赛：</strong></font>由于本科时花了很大一部分时间在算法方面（主要指面向ICPC的算法），并作为一个半吊子的菜鸟在各种较低级别的算法竞赛中打酱油（即成绩平平），另外来到科苑后又机缘巧合地时隔两年&#8221;诈尸&#8221;出去，然后今年又“领队”并又不得不凑数参与了。如同这辈子深深地打了一个标签，可能终身藕断还丝连。</p>
<p>个人水平较低，即使在个人所谓“巅峰”时期也成绩一般，至08以后断断续续没怎么针对性地练习，最多在某些时候为了热身一下，今年更是干脆热身都免了然后果断“悲剧”地拿铁了，虽然有身体特别不适等等因素，但是确实是太久不练生疏得厉害了。想想多年以后还在参赛，有时候想起怀念那时的集训生活，确实挺枯燥的，但是有不少快乐的记忆（苦中作乐），从“for fun”的角度来说还挺不错的。</p>
<p>而且觉得参赛的可以与一大堆又共同兴趣的人交流，能够从其他人那里学到许多；另外也可以出去走走，竞技之余更多的是可以到处玩玩，有时候会会朋友啥的挺不错的，感觉开心就好。</p>
<p>最后，GUCAS晋级final，今年的各种瞎忙活之后还是挺高兴的。看到WHUACM和UA乱搞组不断进步，虽然跟自己关系不是很大但是心情还是很激动，很多时候做某些事看起来很傻，其实是一种情怀。为了自己说喜欢的事情努力一把或贡献一点力量，越来越觉得自己对于这种过程很享受很怀念了。</p>
<p>吐槽两句：</p>
<ul>
<li>有人总结说有三种算法：ICPC竞赛中的算法、面试中的算法、项目中的算法。个人愿意再添加一类：论文中的算法。关于这四种算法有用无用就是智者见智了。 </li>
<li>最近fenng、梁斌等人在抛ACM（其实是ICPC）无用论，ACMer出了算法竞赛的圈子后无所作为，其实明眼人都知道这是他们在自我炒作博眼球。事实是最好的证明，就不好说啥了。</li>
<li>有时候被各种打击偶尔难过，对于各种失败可以做到很淡定地接受（也可以说是麻木）。目前对于上一条所谓的指责还是不能做到完全无视，有时不免感到压力很大。以后在半吊子算法能力之外，各方面能力都成长起来，就可以自信一点了。</li>
</ul>
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		<title>[吐槽和感悟一箩筐]关于工作：各奔前程</title>
		<link>http://liulixiang.info/blog/2011/11/13/%e5%90%90%e6%a7%bd%e5%92%8c%e6%84%9f%e6%82%9f%e4%b8%80%e7%ae%a9%e7%ad%90%e5%85%b3%e4%ba%8e%e5%b7%a5%e4%bd%9c%ef%bc%9a%e5%90%84%e5%a5%94%e5%89%8d%e7%a8%8b/</link>
		<comments>http://liulixiang.info/blog/2011/11/13/%e5%90%90%e6%a7%bd%e5%92%8c%e6%84%9f%e6%82%9f%e4%b8%80%e7%ae%a9%e7%ad%90%e5%85%b3%e4%ba%8e%e5%b7%a5%e4%bd%9c%ef%bc%9a%e5%90%84%e5%a5%94%e5%89%8d%e7%a8%8b/#comments</comments>
		<pubDate>Sun, 13 Nov 2011 12:03:00 +0000</pubDate>
		<dc:creator>Lixiang Liu</dc:creator>
				<category><![CDATA[IT Notes]]></category>
		<category><![CDATA[Talk Nocence]]></category>
		<category><![CDATA[找工作]]></category>
		<category><![CDATA[选择]]></category>

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		<description><![CDATA[最近关于工作、关于研究、关于算法和竞赛、关于男女、关于名人过世、关于生活……各种纠结和想吐槽的东西很多，就发一个系列算了。 关于工作：最近是校招高峰期，由于本组5/8明年毕业，所以找工作的气氛就特别浓，简历、笔试面试、公司、户口、工资等成了近两个月的主要话题，另外本科留武大读硕士同学们（不少人）也都是明年毕业，所以不自主地比较关注。 笔试：跟大家讨论笔试题的时候发现这又是一个很多人用纯应试方法准备的热火点。 北京or出国or其它：国家垄断的体制内真是强大啊，性价比和待遇都是超一流的绝对肥差，作为完全不适应体制内的我只能感慨一番了；由于待遇和居住成本等方面的绝对优势甚至环境等因素的考虑，目前看来通过劳务输出至国外看起来是一个比呆国内更好的选择（下面会继续谈）；本科班上留武大读研的同学截止目前还没有准备来北京发展的（即使有拿到北京这边比较好的offer），北京的吸引力下降或大家被迫远离？ 户口：据说北京户口政策继续收缩，另外考虑到限购和摇号等政策，所以很多人对户口比较在乎。 开复：开复不断继续不断忽悠人给创业团队打工，引发了一大段讨论，眼睁睁地看着他的光环也逐渐在褪去；另外，开复同志及其创新工场被北邮人上某版主狠狠地将了一军，一来二去大家对该工厂的认识也更清楚再选择也会更理性一些。 接着谈工资：传说中用二流人才做一流的事情的那家公司的人到处忽悠说工资不重要，其实在同等条件下待遇肯定会成为一个重要因素；李开复在微博上指责国内IT公司开出了远远的工资（当然还有一些人在附和），个人因为各种原因大概了解国内好几家的普通offer情况，把这几年数据对比一下，没见今年相对以往有特别的高。 国外公司的困境：另外要提的是批评国内公司工资偏高的人没见某些国外的公司（如WAP等的40w+ RMB）开始在国内开出global pay，待遇上远远好于国内，要不是想做点事情或者其它的无奈估计极具竞争力（有点像当年的google）；另外吐槽一句我觉得国外的IT公司在中国做不起来的一个原因就是在待遇上的自然下降，这有一点一定程度上体现了不重视或不平等，难怪招不到顶尖的人才从而导致在中国的失败。 选择：最终大家都会有一些选择；每个人都有自己的志向和限制，需要重点考虑的重点也不尽相同，最终都会有自己的追求和要走的路，当然选择要慎重，实在没选好可以考虑再换，改正的机会一般都在。 …… 再这样写下去估计会得罪一大批人，小结一下就是感慨颇多。<table class="wumii-related-items" cellspacing="0" cellpadding="2" border="0" width="100%" style="clear: both;">
    
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			<content:encoded><![CDATA[<blockquote><p><font style="background-color: #ffffff">最近关于工作、关于研究、关于算法和竞赛、关于男女、关于名人过世、关于生活……各种纠结和想吐槽的东西很多，就发一个系列算了。</font></p>
</blockquote>
<p><strong><font color="#ff0000">关于工作：</font></strong>最近是校招高峰期，由于本组5/8明年毕业，所以找工作的气氛就特别浓，简历、笔试面试、公司、户口、工资等成了近两个月的主要话题，另外本科留武大读硕士同学们（不少人）也都是明年毕业，所以不自主地比较关注。</p>
<ul>
<li>笔试：跟大家讨论笔试题的时候发现这又是一个很多人用纯应试方法准备的热火点。</li>
<li>北京or出国or其它：国家垄断的体制内真是强大啊，性价比和待遇都是超一流的绝对肥差，作为完全不适应体制内的我只能感慨一番了；由于待遇和居住成本等方面的绝对优势甚至环境等因素的考虑，目前看来通过劳务输出至国外看起来是一个比呆国内更好的选择（下面会继续谈）；本科班上留武大读研的同学截止目前还没有准备来北京发展的（即使有拿到北京这边比较好的offer），北京的吸引力下降或大家被迫远离？</li>
<li>户口：据说北京户口政策继续收缩，另外考虑到限购和摇号等政策，所以很多人对户口比较在乎。</li>
<li>开复：开复不断继续不断忽悠人给创业团队打工，引发了一大段讨论，眼睁睁地看着他的光环也逐渐在褪去；另外，开复同志及其创新工场被北邮人上某版主狠狠地将了一军，一来二去大家对该工厂的认识也更清楚再选择也会更理性一些。</li>
<li>接着谈工资：传说中用二流人才做一流的事情的那家公司的人到处忽悠说工资不重要，其实在同等条件下待遇肯定会成为一个重要因素；李开复在微博上指责国内IT公司开出了远远的工资（当然还有一些人在附和），个人因为各种原因大概了解国内好几家的普通offer情况，把这几年数据对比一下，没见今年相对以往有特别的高。</li>
<li>国外公司的困境：另外要提的是批评国内公司工资偏高的人没见某些国外的公司（如WAP等的40w+ RMB）开始在国内开出global pay，待遇上远远好于国内，要不是想做点事情或者其它的无奈估计极具竞争力（有点像当年的google）；另外吐槽一句我觉得国外的IT公司在中国做不起来的一个原因就是在待遇上的自然下降，这有一点一定程度上体现了不重视或不平等，难怪招不到顶尖的人才从而导致在中国的失败。</li>
<li>选择：最终大家都会有一些选择；每个人都有自己的志向和限制，需要重点考虑的重点也不尽相同，最终都会有自己的追求和要走的路，当然选择要慎重，实在没选好可以考虑再换，改正的机会一般都在。</li>
<li>……</li>
</ul>
<p>再这样写下去估计会得罪一大批人，小结一下就是感慨颇多。</p>
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		<title>[折腾]最终决定将博客迁移到子目录</title>
		<link>http://liulixiang.info/blog/2011/11/02/%e6%8a%98%e8%85%be%e6%9c%80%e7%bb%88%e5%86%b3%e5%ae%9a%e5%b0%86%e5%8d%9a%e5%ae%a2%e8%bf%81%e7%a7%bb%e5%88%b0%e5%ad%90%e7%9b%ae%e5%bd%95/</link>
		<comments>http://liulixiang.info/blog/2011/11/02/%e6%8a%98%e8%85%be%e6%9c%80%e7%bb%88%e5%86%b3%e5%ae%9a%e5%b0%86%e5%8d%9a%e5%ae%a2%e8%bf%81%e7%a7%bb%e5%88%b0%e5%ad%90%e7%9b%ae%e5%bd%95/#comments</comments>
		<pubDate>Wed, 02 Nov 2011 14:38:00 +0000</pubDate>
		<dc:creator>Lixiang Liu</dc:creator>
				<category><![CDATA[Software & Library]]></category>
		<category><![CDATA[未分类]]></category>
		<category><![CDATA[折腾，搬家]]></category>

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                        <font size="-1" color="#333333" style="line-height: 1.65em; font-size: 12px !important;">搬到新宿舍(@北京的第5个停留点)</font>
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			<content:encoded><![CDATA[<blockquote><p>对liulixiang.info进行了迁移，&#8221;IT·行·思·录&#8221;下移至blog子目录，在liulixiang.info后插入&#8221;/blog&#8221;即可访问原链接。</p></blockquote>
<p>很早就打算把“IT·行·思·录”当作一部分而不是整体存在于liulixiang.info，所以先将对应的blog文件从根目录放入子目录进行重定向（方法见<a href="http://codex.wordpress.org/Giving_WordPress_Its_Own_Directory">URL</a>），坚持了一段时间，今天迈出了最后一步。</p>
<p>&nbsp;</p>
<p>将近两年了，回顾下<a href="http://liulixiang.info/wiki/index.php?title=Liulixiang.info%E5%A4%A7%E4%BA%8B%E8%AE%B0">从建这个站开始到目前进行的各种折腾</a>：</p>
<ul>
<li>2009-11-25 【IT：行思录】在[rawroot.wordpress.com]落户</li>
<li>2010-5-15 在Godaddy拿下liulixiang.info域名</li>
<li>2010-5-16 在戈戈主机购得空间</li>
<li>2010-5-17 blog.csdn.net/littlekid全面停止更新，liulixiang.info成为个人唯一更新博客</li>
</ul>
<ul>
<li>2010-5-17 从rawroot.wordpress.com导入博文内容至新空间，【IT：行思录】正式迁入空间并成为独立博客</li>
<li>2010-5-18 加入Google Analystics、百度统计代码</li>
<li>2010-5-20 定制Google站内搜索</li>
<li>2010-8-8 定制博客手机版，访问地址<a href="http://liulixiang.wirenode.mobi/">http://liulixiang.wirenode.mobi</a></li>
<li>2010-9-20 Wiki上线(MediaWiki)，地址<a href="http://liulixiang.info/wiki">http://liulixiang.info/wiki</a></li>
<li>2010-10-8 开通网易企业邮局，域名个性邮箱@liulixiang.info上线,登录地址[mail.liulixiang.info]</li>
<li>2010-10-27 改名为“<strong>IT·行·思·录</strong>”</li>
<li>2010-11-22 liulixiang.info加入Google Adsense广告</li>
<li>2010-12-2 wiki左侧加入Google Adsense广告</li>
<li>2010-12-3 使用模版将wiki首页变成分栏模式</li>
<li>2010-12-8 wiki logo上线（牢记搜寻绿色植物的Eve——毕竟WALL-E、R2D2是做清理和修复工作的）</li>
<li>2010-12-26 更换主题至suffusion，开始慢慢摸索suffusion的各种设置;添加无觅插件</li>
<li>2011-2-24 添加Wordpress手机版插件WPtouch</li>
</ul>
<ul>
<li>2011-5-7 域名和主机都续了一年（目前事多，暂时懒得折腾）</li>
<li>2011-5-18 添加<a href="http://liulixiang.info/delicious">http://liulixiang.info/delicious</a> 页面，内容为抓取我的delicious</li>
<li>2011-5-29 添加了某插件</li>
<li>2011-6-6 将csdn上的一些文章搬过来了，主要是一些当时比较重要的想法，留下本科的一些印记</li>
</ul>
<ul>
<li>2011-10-6 <a href="http://liulixiang.info/ac">AC is a lifestle</a>上线：补习算法&amp;夯实基础的那些事儿</li>
<li>2011-11-2 迁移博客目录，至<a href="http://liulixiang.info/blog">http://liulixiang.info/blog</a></li>
</ul>
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