日前韩国老师在教数字和日期时提了提11月11日是빼빼로节(빼빼로是类似1字的巧克力棒,빼빼在韩语是干瘦的意思),并说对于这些如春笋般冒起的新节日感到有点难以适从。第一次听到的时候觉得还挺有趣的啊,毕竟巧克力棒的魅力非凡啊!
后来和韩国朋友聊天自以为有趣提起这个属于“他们”的节日时,遭到强烈的反应。这哪是什么节日嘛,不过是商家炒作的结果,而且还是从日本传过去的。原来还有胸罩节(11月8日- 把横卧的8放在11下)呢……至此我才懂这些不过是无聊的节日,都是商家宣传的手段。嗯,我记起了在日韩所谓的“白色情人节”也是70年代日本商家炒作的结果,但到现在已没有几个人懂这节日的由来。
在这个商业盛行泛滥的年代,所谓新起的节日都不过是虚无空洞的节日……背后值得让人纪念或思考的意义一点都没有。我才开始明白为什么他们的反应会如此强烈,因为商业气息太过浓郁的节日让人窒息。记得我刚到新加坡时,家人叮嘱我记得享受一下那里圣诞节的热闹;同样的,在我去香港之前,我也收到了同样的讯息。感受一下绚丽灯光、拥挤人潮的热闹,有什么不好呢?难得的佳节,轻松一下嘛……
可是,在和一些西方朋友谈话过后,我才开始感受圣诞节在他们心中带来的温馨:严冬时一家人聚集在温暖烛光的融洽和快乐。我没经历过严冬的冷酷,也不属于上帝,过什么圣诞节呢?无聊。沉浸在人潮中的狂欢不过是在享受佳节带来的轻松,而不是在欢庆这个节日。那些节日值得欢庆?属于自己原本文化的那些吧,因为只有在拥有那种文化背景才能和节日产生共鸣……其他的全都是“友族的佳节”,属于难得的假日。
所以,与其去欢庆那些不知所谓的节日,倒不如欢庆一下家人朋友的生日,抑或一些世界的重大节日,抑或对自己意义非凡的日期……至少有一点实际意义。
@@@@@@@@@@@@@@ Welcome! 欢迎!@@@@@@@@@@@@@@
Welcome to my virtual home. This is a little private space for me to put my thoughts and share my feelings since 2005. Due to my wide range of interests, there are perhaps too many tags. I would explain some of the less obvious tags:
"About Life" is really about how I have been pondering about life and what enlightenments and paradigm shifts I had experienced.
"About Psi" contains most topics about happiness, optimism vs pessimism,
confidence, comparison, pride and prejudice and other psychological aspects.
"About Logical Thinking" is about my own way of interpretating and explaining
certain issues, aiming to debunk (or create?) superficialness of them.
"About Ideology" is about my thoughts on big concepts like freedom, justice,
fairness in society and religion.
"About Society" is more about my observations about the society, often through interactions with different peoples.
"My Country" reveals my frustration, critics and hope
on my homeland - Malaysia.
"My Little Pieces" has more short posts though mostly are written in Mandarin.
While I do have some posts on book reviews and business, I am planning to
separate them into author-specific and content-specific blogs. Stay tuned.
Enjoy your reading!
Friday, November 17, 2006
虚?实?(1)
Posted by clim at 11:28 PM 0 comments
Labels: About Society | 世事人情
匆匆留笔
谁都懂这是一个资本主义的社会,商业主导一切;但其中变化之复杂和影响的深远没人能看透。如果神存在,神也未必看得透。科技、教育、媒体、文化、以至于政治等各种社会现象都与这基层建筑有关。资讯和知识空前泛滥,但仍不足以解释现今社会过于复杂的变化。不同学说在不同领域对社会各个层面的现象的揭示让人一次又一次地受启发和惊讶,但惊讶过后和一个清晰的总结的距离仍是那么遥远。我们掌握的“真理”和认知的“哲理“并没有比古人少,只是古时社会变化的缓慢足以让一个相对狭窄的事实或哲理被捧上不容被质疑的神殿。但正因为我们知道的越多,我们才懂不知道的更多。知无涯,即使用尽人类可以生存的期限都不能走到尽头,因为没有尽头。其实我们也不需要这尽头,在沿途不断增加的力量(知识即力量)足以让我们持续前进。
只是,这多多少少削薄了知识的实在感。没有一套理论可以放诸四海(任何情况)皆准,在任何阶段都对。到头来可能就是只要你相信的,对你而言就是真的。或许需要摆脱对“一切绝对”的依赖。
最近有很多很多新的想法要整理探讨,但碍于功课和考试的繁忙,只能抽闲匆匆留笔,做一些空洞的概述,实际的内容还需更多的精神酝酿。(原本想要在这篇文章表达的内容和写出来的东西一点关系都没有,真是失败……)
Posted by clim at 1:26 AM 0 comments
Labels: About Society | 世事人情
Thursday, November 16, 2006
行走
Posted by clim at 3:29 AM 0 comments
Labels: About Life | 寻梦之路, My Little Pieces | 心路文影
Friday, November 10, 2006
念虑
Posted by clim at 1:20 AM 0 comments
Labels: My Emotions | 情绪小室
Wednesday, November 8, 2006
Professor & Students
II) Every professor would like all students to attend class and tutorials so that they can been "taught" by them. That's reasonable if their teaching skills are good. But students in general would like to have their own freedom to make their choice. To attend lectures, or to watch lecture recording in room, or to study by themselves, or even don't study.
Posted by clim at 9:27 PM 0 comments
Labels: My Emotions | 情绪小室, University | 学云彩絮
Conflicts solved?
Dear Choon Lim, The test is only 40 minutes. Basically, it is about the same as one question in the final examination. The topics covered in test 2 include Dear Prof, I feel nothing after sending this email. I just want to convey my message clearly about the format of quiz and I wouldn't have expected any changes. But other requests from classmates had somehow finally changed something. There maybe another quiz for those who want to take it and prove themselves. Conflict solved? I think it is solved since both sides can accept the suggestion. I think neither side were right nor wrong, because it's conflict of interests. But does this show the importance of voice out, communication & compromise? :)
1. circular convolution
2. implementation of linear convolution by circular convolution
3. DFT matrix
4. Forward transform as dot product between basic vector and signal vector
These are the topics that we covered in recent 3 weeks.
The first time I taught random processes was almost twenty years ago. I started teaching DSP about ten years ago. I fully understand that both random processes and DSP are difficult. One professor equates DSP to quantum mechanics on the depth of the subjectc. On the other hand, they are the keystones of many other subjects like communications.
The major difficulty is that they are abstract. Also, some time, students do not know why the subjects are important and so they lose
motivation to learn.This difficulty is being tackled by using examples and relating the theory to objects in real life like archery, telephone lines and TV reception.
Another problem is that a student will have great difficulty at the later part of the course if he/she does not have a good understanding of the concept taught at the begining. In fact, students will have problem if they do not have a good understanding of signal and systems or they have not taken erg2030.
That is why I always stay behind after classes to answer students' questions. Also, Lawrence's revision should be useful. I heard good
comments about his tutorials.
For the last 5 years, my effort toward this course has never stopped and the effort is devoted to making this course easier to understand instead of making it more advanced.
On the other hand, I need your cooporation. Talk to me after the lectures if you have problems. Some did and I am sure they are all happy and have their problems solved.
It's weird as I was only focus on the quiz and didn't attack on him personally but he replied in so many lines to defend himselves. Well, it's good to enhances my understanding about his qualification and perseverance, and about the background of DSP. But I think he misunderstood some of my points and shifted away from the topic: quiz. Communication gap huh?
Thank you for your reply. I appreciate your efforts in past years to try to make this subject easy to understand and clear. Personally, I think your lecture notes are well-written and organized. However, I still feel that the scope of the tests should be defined clearer. Since there are two tests, i think it's good to separate one test for one major part of the course. (e.g. First quiz for random processes, second quiz for DSP) instead of stating "lecture notes covered up to what date...".
I suppose the logic of revision of some of the students (like me) goes like this: In the first quiz, only definitons of random processes are tested. Means, variance, autocorrelation & autocovariance, 2-D joint density function & 2-D joint distribution function are not tested. Hence, we would expect some part of these come out in the exam, since it's included in "materials covered up to last lecture". If there are 20-30% of the quiz is allocated for these topics, I think all of us would have no complaint at all.
And if the purpose of the test is to test "purely on" whether student have good understanding about DFT, convolution e.t.c, I think it's
better to inform all of us that the scope is from DSP's part materials. Of course there are some students solved it happily during the exam because they have prepared for that part. But that doesn't justify that these quizzes are "fair" in my opinion. A better quiz would be either of wider scope or clearer scope. I understand students and professor have different point of view and interests, but I sincerely hope you can understand where our frustation comes from.
Thank you very much.
Regards,
Choon Lim.
Posted by clim at 8:59 PM 0 comments
Labels: My Emotions | 情绪小室, University | 学云彩絮
Student's Response
I feel frustrated after finishing today's test2.
- the questions b,c are quite similar, but it already counts 60% of the test.
- none of the tutorial cover the content of the test.
- the examples in lecture notes are not sufficient.
- the difficulty and format are too different with test1.
I don't think it made a fair assessment on students' effort. Therefore, I suggest that this 20% test should be slightly adjusted to 10 -
15%. Thankyou very much for your kind attention.
students' abilities.
It's hard to get a good result no matter how much time you spend....
- Lect, tuto notes and ass solutions are posted late.
- Quizzes are making fool of us, and never reflect students' efforts.
- Assignments are so poorly designed that it hardly helps us to understand the most basic concepts, but to frustrate us and make us lose
- Newsgroup is left deserted. Students attend class just for the damned pop quizzes.
- The professor is always making fun of us: "It is very easy, right?" He thinks these words can make us relaxed, or boost our
- The lecture makes no sense. It just makes the simplest things in the world extremely complicated to show off his knowledge, to build
Let it go and the world is beautiful.
I agree with the Quizzes are not the most effective way to evaulate our knowledge on this course after taking 2 tests.
The marks of these two tests do not really reflect our ability.
We may get high mark when we fulfil either conditions
1)very very well-prepared
2)very lucky
3)always study the last chapter of the note for test
I do not think we only learnt DFT or definition of random process only in 3410.This two quizzes really "天堂與地獄", really "random".
If we study hard autocorrelation these chapters in second quiz, we still fail in the test, but the material studyed is also the core part of the
course.
以上只是身為一個學生的小小見意,亦可當作course's evaluation comment.
Thanks for consideration.
I have something to say as well. I think quiz generally shouldn't be set like this. It shouldn't include only one topic but should include few topics in all previous lectures. If this "style" is going to be continued, it would only encourage student to spot topic (latest one) instead of revising most of the topics. This quiz is not reflecting the knowledge of students, nor strengthening the understanding of students. It is destroying the self-esteem of student and driving them into the fear of failing this subject.
You could say that these are just irrational responses from a despair student, and I admit I did extremely poor on both quizzes. But this is really what I feel after 3 days of hardwork, revising on all previous materials up to random processes. I think I am stupid not to cover up all
materials but I think it's ridiculous none of the these parts are tested in a "test". I feel shocked!
I acknowledge that professor has the right to set the question paper in any style, but I guess most of us don't like this style. It's not that the question is extremely difficult and beyond our comprehension. If the topic (DFT) is told prior to exam, I think all of us can do it. If the scope is not specified, then by common sense the quiz shouldn't only include DFT. Same goes to the first quiz. I don't think the mean of around 30 marks really reflects the standard of student.
Of course nothing could be done now, but I would really hope professor and tutors take some time to think about our responses. After all, we are just students.
Regards,
Choon Lim.
Posted by clim at 1:00 AM 0 comments
Labels: My Emotions | 情绪小室, University | 学云彩絮
Tuesday, November 7, 2006
挑战
Posted by clim at 1:50 AM 0 comments
Labels: My Emotions | 情绪小室, University | 学云彩絮
Sunday, November 5, 2006
杂文重整
每个人都活在群体中,但又必须在群体当中找寻自己。不是应该自个在深山独处才能找到自己么?不是,因为没有比较。阅人无数,方能懂最适合自己的性格是什么;阅历丰富,才能更容易找到自我。无怪乎,即便圣人如孔子也要活到七十才知天命。我想,自我是分散躲藏在各种生活经验角落当中的,因为人在对不同的人、事、物上都有不同的反应,只有把这些反应集合起来做一个合理的分析,才能对自我窥知一二。
在很多情况下,本性真的很难移,即便你以为自己和以往不同了,其实也不过是换个姿势在原地踏步而已。但话说回来,如果不是极端的罪恶,为什么有必要在另一天就把自己变成另一个人呢?又不是患了人格分裂症。矛盾吧!或许我想要表达的是:往好的方向改变并不是一朝一夕的事,在瞬间的所谓“往好的改变”往往经不过时间的考验。因为,骤变含有太多的感性成分,通常都不太理性。欲速则不达,持续缓慢的前进难道不比短暂的急速冲击有效么?
与其花时间去祷告,不如花时间去思考。宗教典籍藏有非常深邃的智慧,是拿来启发思考的,不是拿来当饲料喂进每个人的口的。不肯尽信经典的人其实才是最具智慧的人。尽信书不如无书,如果智慧就是背诵一本经典这么简单,那记忆大师必然是无上的智者。可惜许多宗教就像个大钟罩,不让人四处寻找智慧,反而把人困在里面,教条般灌输其一面的“真理”,没有教导出智者,反而教育出许多偏激的笨钟人。多么伟大的反讽!你越能确信的东西,越可能让你陷入死胡同,如果你不仔细思量的话。我不认为“世界末日”的来临有多么恐怖,反倒是如果有一天全世界的人都只聆听一个“神”的声音,那将是世界的灾难。
视野啊!视野!眼睛的视野可以用人工的360度代表,心灵的视野不可能被代表。正因为大脑思维和情绪世界的复杂,世上才有数千种语言的存在,每一种语言的每一个字都有各自的内涵和外延,都是脑里某几条线的连接。语言帮助讯息的传达,也同时塑造着思维的方向。诚然弱势语言的消失让人惋惜,但我们不能不承认,根据自然法则,我们生活在一个弱肉强食的社会。当你惋惜吹捧英语削弱了普通话的影响力的时候,别忘了推行普通话的政策削弱了粤语的影响力,也别忘了粤语的强势削弱了广州内其他方言的影响力。
Posted by clim at 11:41 AM 0 comments
Labels: About Ideology | 理念思考, About Language | 语文天地, About Life | 寻梦之路, About Psi | 精神世界, About Society | 世事人情
Wednesday, November 1, 2006
北京游
Posted by clim at 12:19 AM 0 comments
Labels: My Trips | 逍遥游踪
