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    April 30

    C'est difficile...

    刚开始,觉得看paper,整理思路,引证,写essay,是最困难的,花了几个月;后来设计调查问卷,翻译,修改使通顺,进行调查,也是困难的,花了一整个月;现在看来,数据处理,仍然困难。
     
    388份数据,SPSS,PLS,EXCEL,三种软件之间的转换,无数个数字的处理
    Descriptive analysis, factor analysis, Linear Regression, PLS loading and weight, significance, beta,second order factor...
    头大了
     
    所谓academic research原来绝对不是简单的事情,它是脑力与体力的高强度结合...需要researcher全心devote...以后一定只做脑里活,体力活全部交给所谓的Research Fellow or Research Assistant, 欧啦啦
     
    不好的消息是提交给PACIS的其实很不完善的research-in-progress被拒了;好消息是不用因此而去新西兰了,过两天完全写好后再投ICIS说不定就被收了,可以去加拿大了。年轻就是财富,总是充满未知,谁知道呢
    April 25

    .

    白色风车

    词曲:Jay Chou

    白色的风车
    安静地转着
    真实的感觉
    梦境般遥远
    甜甜的海水
    复杂的眼泪
    看你傻笑着
    握住我的手
    梦希望没有尽头
    我们走到这就好
    因为我不想太快走完这幸福
    很可惜没有祝福
    当爱你并不孤独
    不会再让你哭

    我陪你走到最后
    能不能别想太多
    会不会手牵着手
    晚一点再到尽头
    你说不该再相见只为了瞬间
    谢谢你让我听见
    因为我在等待永远

    April 23

    啦啦啦

    今天早上终于结束了操作系统考试
    无语
    关于操作系统,和这门课,和这个lecturer Rolland,实在是让人无话可说。

    Zong Xuanran同学的一个经典评论是:去问问题之前也就只有30%不懂,去问了一下,回来就totally lost了。
    另外Rolland老师尤其善于启发式教学,lecture notes上不是知识点,全是关于这些知识点的问题...全是诸如why not this?why not that? how can we do this ? can or can't? what can be used to do sth?之类的问题,似乎我们是lecturer,他是学生。无奈的是语法错误的运用,有些登峰造极,简单的如单复数还好,最关键的是经常出现逻辑语法错误,比如指代不明之类,概念由于句子省略了某些连词而表意不清之类就彻底没辙了。说到上课的话就更绝了,把notes上的问题再重新表述一遍,然后就差不多下课了。此所谓启发式教学吧


    暂时未经允许,私自贴几张大山哥无敌手机拍摄的照片,就叫《考试众生相》好了:

     

    考场亦如战场

    大山哥(Copyright@2007大山哥)

    仔仔(Copyright@2007大山哥,肖像权@仔仔)

     

    我(Copyright@2007大山哥,肖像权@我) 


    然后,今天晚上办了个傻事
    积累了两个月精华,分门别类、条分缕析地写好了的布满了所有需要用到的公式的统计学help sheet,终于完工了,为了防止丢失和其他意外,专门跑到复印机处复印了三份作为备用。复印完毕后去了一趟洗手间,回来又用了一下图书馆的电脑。回到宿舍以后找不到了,想了想原来是忘在了电脑旁边。

    作为四张手写的纸张,一定已经被大妈们当作别人不文明胡乱扔掉的废纸处理掉了...两个月的努力,哎。
    本来以为这门课用这张攒了许久的help sheet就可以免去再寻找知识点、抄写之苦,这下又要腻歪了

    April 20

    由大山哥的随笔所想到的

    看到大山哥关于某日“平原游击队”三人众促膝夜谈中我所云厦大与国大计算机教育之比较所做的评论,不觉莞尔。大山哥虽平日自恃不学无术,自号懒人一个,不料竟然武侠小说功底颇深,能将一段乏味之教育评论演绎得如此精彩,也是一种实力。

    先看大山哥文章(遵照C语言惯例, ”/* */“之间是我的评论 ):

    “ 2007-04-11 23:50

     昨晚和厦大的张耀,川大的雷铮蒙同学从晚上10点一口气聊到7点天亮。交流了不少,学到很多东西,也了解了很多以前所不知的。

    /*这里面故事可多了,竟然被大山哥一笔带过。。。
    话说当天下午收到大山哥短信,问能否借我的笔记本用两天,盖因为是双核速度远快于其破本本之故,而大山哥两天后要向导师展示这一学期所做的关于图像识别方面研究的成果。
    此前我们曾经多次向大山哥要求给我们展示一下他对图像识别的研究,满足一下我们的好奇心。无奈这人总以各种原因推托,以致于我们对图像识别越来越觉神秘莫测。直到那天才终于真相大白,原来大山哥的图像识别的成果当时为止落实了的成果就是:摄像头装在电脑上安好驱动以后可以拍照了。。。
     
    于是大山哥需要在两天之内通宵赶完所有的事情,以应对两天后的成果展示。出于对图像识别技术之崇拜和对其之深切同情,遂答应借出本本,交接时间是晚上,PGP某自习室。按照计划,交接结束后大山哥就在自习室通宵搞”图像识别技术“。
    话说当天晚上,大山哥带了三个饭盒如期赴约,内装有Shears夜宵两份,于是又叫来铮蒙,三人开始大嚼,之后开始饭后小聊,然后小聊演化成彻夜长谈

    作为平原游击队成员,一直并肩战斗在操作系统这门课写”任务管理器(Task Scheduler)“ 的学期assignment的第一线上,三人本就相处甚笃,有如此机会,自然不会放过。于是天南海北,大山哥看破红尘地把图像识别统统抛开了,我们也把任务管理器抛开了。
    一夜长谈。。。
    此处省去关于未来一年机密作战计划之商议内容无数

    天很快亮了

    */

    其中有一点让我印象很深。张耀对比国大和厦大的计算机科学教育。 在国大的计算机科学,大一只要学简单的微积分,线性,离散,还有大二学一下概率,所有的数学就这些。大一学习一门主攻编程语言,大二两个学期学习四门主课:软件工程,操作系统,计算机网络,数据库。大三开始从算法,人工智能,计算机语言等中选修。大四做毕业论文。这样出来的学生,在计算机领域一专多能,可以做到独当一面,自立门派,仿佛金庸小说中的掌门一样,厉害的就算华山,嵩山掌门,威震江湖,次点的管个泰山,衡山还是绰绰有余的。

    /*

    国大的计算机教育在这个意义上讲是相当成功的
    总结起来: 实用至上,产业为先
    力求培养出来的人马上可以投入产业搞开发,所以教育结构大概如此:
    大一:Java 基础-->数据结构(based on Java)
    大二:软件工程(Java),数据库,操作系统,网络
    大三:可以根据兴趣主攻算法, 人工智能,软件工程开发之类
    大四:Honor Year Project
    除了教育体制如此之外,国大计算机教育的质量也是相当好。穿插在课程中的各种需要三四个人一学期团队合作来完成的Project或Assignmet的运用是其最精彩的一部分。Project的内容一般与课程紧密挂钩,但很有挑战性,大部分需要团队合作。如此为之,既在Learn-By-Doing的过程中极大地加深了对这门课的理解,而不是像国内教育般流于形式和考试,又在实战中培养团队协作能力,此则更为未来成功之必备素质。

    所以培养出来的人,强者巨强,或投身产业实干,或前往美国大学,加入更强者行列;弱者历经无数次准实战之浴血洗礼,对计算机产业、开发、应用理解亦不弱,投身产业,仍可有所作为。

    */


    而对比国内,情况就大不一样了,张耀他们大一大二两年,全是数学,而且是极其高深的那种,计算机的课却只学了一门C。大部分的人没能幸免于数学~~到了大三大四,也不过是些数据库,软件工程一类在国大大二的课。然后,没有然后了,大学就毕业了。这样出来的人,大部分,据估计80%以上没能过数学关,后面一路颓势,出来自然啥都做不了。而那不到20%呢,直接出来仍然啥都不行。仿佛金庸小说中的虚竹一般,纵有天下绝顶的内力,可是不会一招一式,还是打不了人的。另一方面,虚竹有潜质,一旦经高人指点(读研读博),弹出个松球就能致一般的武林高手于非命,这又是绝大多数门派掌门所望尘莫及的......



    反观厦大计算机教育,每每与人谈起自己大一大二所学,对方总惊诧于我们的教育结构:
    大一:高等数学(微积分高阶版)一年;高等代数一年(线性代数高阶版);物理,电路;
    大二:常微分方程;空间解析几何;数学分析;物理;逻辑电路;数字逻辑;C语言
    大三:数理逻辑;数值分析;数据结构;算法;变异原理;
    大四:软件工程;数据库;网络

    大一大二出来以后即便成绩如我偏于中上者亦有恍如隔世,不知所学之感,更何况那些成绩不好的人?

    以致于来了国大以后不得不从一只菜鸟开始上人家一年级的课,然后去抢人家A+的名额....到了人家二年的课的时候就有点力不从心了:经过几年积累下来,这些人的程序素养的确不是盖的

    至于要为这种教育体制辩护的话,只能差强定位其为“精英教育”,以培养计算机学术人才为目标,要求出来的人苦练内力,拥有极强的数学、物理、逻辑功底,可以顺利为将来在计算机科学学术领域开疆拓土打下极好基础。

    如果进一步说开去,这便是大国与小国的差别。
    小国人少国富,人均经济力量颇强,人才却相对匮乏,所以投入大量人力物力再教育,培养人才也讲求短平快,产业为先;即便长期技术创新不足,因为开放程度高的缘故,引进国外先进技术与人才可以迅速对本国产业链进行革新,推动其发展,“关键技术掌控在外国人手中的说法”也不会像在大国中那样影响深远,关系民族经济危亡, 所以教育可以实用主义至上,为产业发展培养人才;
    大国产业整体庞大,革新和引智产生效果周期太长,又不可放弃关键技术,所以一定万事考虑长远,不以短期为计较,而务必以十年甚而百年为远景,长远规划。之于本来就远远落后于国外之计算机教育,即为暂时牺牲部分人利益,全力培养高端科研人才,作为长远之助推剂;同时不断改革教育,引入先进力量,强弱坚固,平衡差距,慢慢赶上国外先进。此与改革开放先富沿海再深入内地的思想相像,均为大国迎头赶上之哲学。 */

    //END

     
    澄清(补记):大山哥绝对不是不学无术之徒,否则也不能在两天内搞定图像识别技术了。给导师展示完当天,正好吃饭时遇到,于是终于也给我们战士了一下他的成果(隐去隐讳高深名词若干):先用摄像头给每个人照相,把我们的照片输入到自建的数据库中;然后再从另外的角度和距离,对作出不同表情的我们拍照,然后一张一张输入电脑;计算机会根据数据库中已经存在的照片辨认刚刚输入的照片,然后输出数据库里面跟这张照片最相近的一张的图片的名字。
    比如先给我,大山哥,铮蒙拍照,三张照片分别以我们的名字为文件名输入数据库; 然后从另外一个角度给大山哥拍一张,输入程序,程序会分析这张照片,然后去数据库里找对应的最像的照片,然后输出“大山哥”。
    结论: 大山哥不是不学无术之徒,是”天使与魔鬼的结合体“(参见小朋友的论证)


    第一次在峥蒙的Mac上写东西,不太会用,格式不对,后用我的DELL更正
    还是Windows习惯

     

    贴几张平原游击队在Lab通宵写程序时为放松精神振奋士气留作永久纪念而拍的照片

    左到右:   大山哥,小虎子,翠翠

     

     

    April 16

    写完睡觉去~

    颇有种好几天没睡过觉的感觉
    其实是好几天没怎么睡过觉了
    看谁比谁更拼命,看谁比谁更出色 
     
     
    PS:奉劝所有学弟学妹,除非对CS超感兴趣甚至有天分这样子,谁也别进School of Computing,否则即所谓“死无葬身”
     
     
    另看到某小孩博客上几句话很精辟,在此引用一下:
     
    .... 
    (此处省去回忆美好的高中生活之文字几句)
    ....
    于是一晃五十年过去了
     
    "
    正所谓简短有力,发人深思
    April 09

    加油加油加油

    很久没有像今天这样一整天只做一件事情了
     
    睡觉时候总是做噩梦写essay
    所以早上七点就起床开始写essay,一直到现在,01:45, 一整天,19个小时
    除了吃饭,玩了一小会儿游戏之外,跟小朋友发发短信之外
    全部是在自己的一尺书桌的电脑上写essay和do questionnair design
     
    腰酸,背痛,头晕,眼花
    颇有些老了的迹象...
     
    然,
    XX老矣,尚能饭~~
     
    我要拼命,拼命尽快完善survey,尽快发出去,收集数据,分析
    我要拼命在走之前利用这边的一切国内拿不到的资源尽量多地跟导师合作,完成这篇处子作的paper大作
    (回去之后才能逍遥自在一小段时间~)
    坚信这篇paper之于其涉及到的领域的独特性、创新性和重要性
    坚信即便它无法在新西兰的PACIS发表,也必将能够在国际刊物上发表
    因为
    我站在巨人的肩上
    有最锐利的武器(Google Scholar, NUS Digital Library)
    最强悍的战友(导师,朋友们)
    和自己的大脑,钻研
     
    还有两周就要考试,另外还有一对乱七八糟的小事
    总是无法抽出大块的时间很专心的继续essay
    没关系
    是凛冽的北极寒风造就了维京人
    那就让暴风雨来得更猛烈些吧
     
    加油加油加油
    April 08

    Executive Case Summary 7, regarding to the Case “The FBI and Digital Surveillance: How Far Should It Go?”

    Ethical concerns about FBI’s authorized and influential power have never been quiet down and have become even more controversial after 2001. Under the Patriot Act put into place after the September 11 attacks, FBI has gained more and broader influences on the surveillances of potential criminals and terrorists to enforce the country’s security.

     

    Both FBI and the US citizens are in ethical dilemmas for this issue because the trade offs between national security and individual privacy is never easy to obtain. It is indispensable for FBI to monitor information flow of potential terrorists or criminals, but under current limitations, their activities fail to fulfill their responsibility while satisfy the public’s needs for privacy. For the U.S. citizens, while they realize the necessity of FBI’s actions to enforce their security, they are also concerned in problems such as over surveillance and intentional or unintentional misuse of its power to intrude individual privacy. Their conflicts mainly come from the trade off between and different evaluations of security and privacy and this is worsened by some of FBI’s failure or scandals, either technically or politically. And the use of electronic surveillance and national security letter are the two issues been brought to attention.

     

    There are various options to deal with the dilemma. One feasible option is to require changes in law to limit FBI’s power on certain actions but this could lead to the loose of national security. Another possible option is to make FBI’s work more transparent to at least the top officers in the federal government which would lower the risk of misusing but may result in inflexibility and over intervenes from the top. Other options include internal improvement of FBI’s working procedures and methods, trying to balance the two sides. In practical, a combination of the options mentioned above from both internal and external perspectives to make FBI’s job more acceptable may be a proper solution.

     

    Ethical and social impacts of the use of modern technology could be significant. Even when it comes to pivotal domain like national security, citizens’ are still concerned of their privacy. Thus for IS managers, it is important to carefully evaluate the ripple effects of IT and perform the ethical principles to be ethically and morally right when adopting technologies.

    Executive Case Summary 6, regarding to the case “Knowledge Management 2.0” by S. Spanbauer (December 1, 2006) in CIO Magazine (http://www.cio.com/archive/120106/fea_tec.html)

    Newly developed knowledge management (KM) tools based on Web2.0 are now available and may become a reasonable choice. They adopted ideas like blog, RSS to encourage and foster knowledge sharing, without additional work and much money. In contrast, “traditional” KM tools failed to be widely applied because of its high cost, complexity, and unfriendly user interface.

     

    EMS Documentum is a large set of software which helps manage all kinds of content across multiple departments within a unified platform. Through various software under the same platform, it enables enterprises to manage and share content within organizations and with outsiders. Tangible costs includes large amount of funds to buy the software from EMS and additional IT hardware, maintenance and technical support will be required. Intangible costs consist of efforts on employee persuasion and training on the new system, and long term incentive to encourage knowledge sharing. Although expensive, complicated and not user friendly, the Documentum system is now well established and has been adopted and tested by many large enterprises. EMS also gets a whole basket of services and solutions to help address problems, as long as you have enough money. The newly developed “KM 2.0” tools are web-based, inexpensive and more user-involved because of its Web2.0 features. But they are new and therefore lack of further testing which may lead to privacy, security pitfalls.

     

    The decision on adopting a KM system should be consistent with the business needs. A KM system may contribute to knowledge sharing but it should be people-centric and more attention should be put on the business strategy and the corporate culture. Several factors would be addressed when evaluating the two kinds of KM systems. Whether and to what extent a KM system contributes to the organization’s comparative advantages should be first evaluated. Then whether we have enough funds to buy the Documentum system and related services is important. Further, whether the corporate culture encourages knowledge sharing should be considered because if not, the adoption of a Documentum system would require much political efforts and incentives to get employees on board and then a KM2.0 system is more attractive because of its grass root features.

    The biggest challenge of KM initiative is to get employees engaged in knowledge sharing. It requires clear incentives and rewards. Employees need to feel beneficial from the process. T-shaped managers can be adopted to foster collaboration and interactions among different units to further assure successful KM.

    Executive Case Summary 5, regarding to the case “NIBCO’s BIG BANG” by C.V. Brown and I. Vessey (2001) in Communications of Association for Information Systems

    Implementing a new enterprise-wide system maybe beneficial but risky as well. More attention on strategy and immense efforts aligning the enterprise resources are needed, to smoothly develop and implement the new system to leverage its benefits.

     

    NIBCO adopted Application Packages from a vendor as its ISD approach. Generally speaking, since the vendor provides the complete set of applications which might have been existed and used for similar problems elsewhere, if the system is installed properly, companies can save time and win substantial payback. However, the disadvantages are also significant. Risks of failure or delaying or beyond budget are high because of the system’s large size and complexity. Companies may have to compromise and change their way of doing business to balance with the new system. There are also problems like vendor switch, lack of intimate knowledge of the system, etc. In initiation, large numbers of business men were involved and 14 months were spent, all in the purpose of identifying the core business processes and problems. SAP trainings were conducted to make team members familiar with the system. Incentive pay bonus and stock options were granted to encourage the team members to work hard and quickly. In development and implementation, business teams, IS department and Change Management cooperated closely to customize the system, build IT infrastructure, and improve communication within the organization. Long hours of training to the employees were delivered. Budget was carefully evaluated throughout the process.

     

    In order to implement quickly to satisfy business demand and avoid suspending without fully applying the systems, NIBCO chose the big bang approach. The challenge was that since they would convert to the new system all in one shot, they need to quickly address and fix problems emerged and help the staff run the systems smoothly. The Go Live date was set shortly before the New Year’s holiday, which would allow more flexibility and time for adjustment. New tactical teams were formed to handle heading up risky areas such as data, customization, helpdesk, etc. Critical success factors: Senior management’s consensus and support; close alignment of business and IT; proper champion involved.

     

    Recommendations: Carefully evaluate whether to reinvent or not; consider whether they can devote sufficient resources and accept the opportunity cost during the implementation; a team of closely cooperated business people, IS staff and proper champion should be formed; prepare to modify organizational structure to accommodate the new system.

     

    April 03

    忙里偷闲Sentosa

    真是不容易,在快要期末考试的时候
    有机会纠集一批人出来休一天假
    可以暂时放下闷在手中一学期的的一切陈腐
    暂时忘记一切忧愁烦恼
    全然无我地漂浮在海水中
     
     
    叫上阿浩,Zhang Hu,又见到野猪、文文,而且终于见到了SMU交流的Lin Yan同学
    Sentosa的沙滩 阳光
    于是完美的周末,就这样成型~
     
    真该以此为引子,写篇《周末是怎样炼成的》~
     

     
     Sentosa外景
     

     
                第一张集体照,一位印度大叔的杰作...
     
     
     
     
    曾经梦里的狮子
     

     装一幅一本正经的样子~嘿嘿
     
    文文

    实验杰青

     

    耶稣受难像最后变成了XXY超人...这些人的思想太不可就要了

     
    哈哈,Linyan造的小城堡还不错吧
    虽说我一直觉得是口井...
     
     

     
    这是谁的杰作?
     
     
    生活更多是一种态度
     
     
     
     

    April 01

    当我们还年轻

     
    最近可能由于接触了一帆小朋友的缘故
    于是常常在想自己已经变老的事情和事实
    虽然小朋友在space自称老孙,却依然还是小朋友 ^ ^
     
    前两天翻出来走之前给囊萤杂志写的那篇关于“人生起飞”的稿件
    开头第一句话是
    “我们最大的资本是年轻,有大量的时间可支配”
    第二句话是
    “做任何事情都有时间成本”
     
    那个时候仍然还有着充足的牛犊精神,作为一个年轻之为学弟者,
    蔑视一切年长于我之为学生及其他年长有成就者
    自信凭己之努力,给定还有的时间,必然可以胜过一切那些所谓某某的某某
     
    这种信心源于年轻,正如老毛所言,
    “一张白纸,没有负担,正好写上最美的文字,好画上最美的图画”
     
     
    大一结束了,自己成了学长
    每每被学弟学妹们唤作学长,往往并无特别的想法
     
    大二结束了,尚未更加体会到年老的学长的滋味,就来了这里
    因为同辈人都在year 2和自己竟然还学了三门year 1的课的缘故,始终未有年老之感(潜意识里有装嫩之嫌,但既然为潜意识,自非自我意识所控)
     
    大三快要结束了,遇到了Zhang Hu和一帆小朋友,
    开始准备回去和毕业之后的事情也开始陆续受到些厦大的学弟学妹们询问来交流的事情
    终于才开始极度地感受到身为学长而从更年轻一代人身上所获得的压力
     
    他们的白纸上,尚未有任何负担,还有机会写上最美的文字
    而我们的呢
     
    于是在挑战前行者的同时,
    又不断implicitly受到后来者的挑战
     
    于是偶尔会想有一天自己老到动不了,是不是会依然没有任何成就
    偶尔会考虑,自己把过去的年华,当作机会成本,终究是换回了什么
    偶尔想想,原来年轻一代,毕竟还是比年长者厉害
     
     
     
    当然考虑这些并非仅仅在空叹时光如梭,岁月蹉跎
    对自己更多是一种激励
     
     
    看了很多小朋友的文字
    却未曾留言
    因为未敢以己之已然经历时间浸染之言,
    玷污一尘不染之莲
     
    出淤泥而不染,
    濯清涟而不妖
     
    才是人之至高境界一种
    而我已然已无法做到
    也已然有了从现实的理想主义者
    向现实的现实主义者转变的迹象
     
    我先前所蔑视的一切
    似乎竟毫不留情的开始发生在自己身上
     
     
     
     
    所幸,虽然未比年轻者年轻,
    却尚未比年长者年长
     
     
    写到上一句突然想到韩愈《祭十二郎文》结尾的感叹
    呜呼哀哉!尚飨
     
    想到原来这篇文章的目的,
    竟终究在于祭奠已经逝去的年华
     
    然而讽刺之至,这又是某种成长的代价
    做一切事情都要冠上种种堂而皇之的理由
    以致最终忘了最初作事情的本意
     
     
     
    我又开始有些蔑视现在的自己了
    这正是改变的开始
     
     
     
     
     
    PS:望小朋友勿见怪