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Wei Chen"We must know! We will know!" David Hilbert
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May 30 FoxThe day before yesterday. An early morning, at about 7:30 am， I walked along the side of Jubilee Pool. A red fox was looking for food through the green grass field on the other bank. A duck led her baby geese through ..... That is my life. I am a red fox. 老板那天问我，你来多久了？我这才记起，我来这里有七个多月。流水的时光，感觉在不断地变化。没有融入这里的文化，语言还是有些障碍，研究有了些感觉，日子还在继续..... I am a red fox. The spring of Midland is so good. Good morning, Midland. I am looking for a chance. Chances are not in books. 孔圣人很有道理：学而不思则罔，思而不学则殆。用用你的智慧，你会得道的。 The life of Tsinghua is far away from me. I still miss the swimming pool there. I hope I am a fish, but I am a red fox. 下周去游泳。 我是个幸福的人，读书，思考，看鸭子抢面包吃。 我是个幸运的人，吃饭，睡觉，打桌球。 Go to the hell. I am rubbish. 我永远都学不会，学不会去失落。 Let it be. 我想看看电影！像Cinema De Paradise 那样阳光的电影！ Turn off the light. Let Bethoven on. Relaxing... I am a red fox. Sun rises from northeast at 5:00am. Dear me, go ahead. Smile to your friends. February 19 生亦何欢？死亦何惧？老张说：“人生两大悲剧：心灰意冷，踌躇满志”。 “悲剧中的悲剧”＝“心灰意冷和踌躇满志交替出现”。 This is the regular language corresponding to the automaton of me. (ab)* January 31 DAY 1Reading "the algebra of programming". Tired day.
Meeting: talking something about Generating Functions.
Eating with my friend. Thanks. January 30 DAY 0 At about 17:00, I went to Post Office, sending Provisional Driving License Application Form. Hope everything smooth. I hope it will be quicker, because I sent my passport together with it. I will make travelling plans for UK and EU. That is a good way for me to relax. I should keep the balance between research and relaxation. To take some time travel and talk with my friends is good for my mental health. Good things always happen in good mood. January 13 变则通，通则久2001年, 我在深圳百草园住的时候，百无聊赖，孤单寂寞。那个时候手头有点闲钱，没有不良嗜好，却无处开销。于是，从公司小书店购得些许图书，多半与历史有关。一个人闷在寓所内，任由风景秀丽的百草园随风飘逝，倒是读了不少文字。 想来，这个快要荒芜的小岛，与那时的“白菜园”多有几分相似之处。只是有点夜长，时常有点孤单的心痛之感！ 然，今日浑然之间完全想通！源于《资治通鉴》！ 2007年夏天，离开清华园的时候，冥冥之中，在搜集一些古书的电子版，这也与我平素喜好搜集这些文字有关吧。总之，那时存下了一些上好的影印古书。其中，当属《资治通鉴》和《三国志》为最爱。 不曾想，今日忽然翻出，那些熟悉的古文，跃然屏幕之间。心中顿时坦然。 诚然，2007年的最后几天，心中孤寂的几乎让自己崩溃。 为何不读书呢？ 静静的，漫长的，凄冷的黑夜。此等境地，比起“白菜园”更加适宜修身养性，读书治学。 文以载道，思以载道！ 顺天安命，岂不快哉！ 再无孤寂之时：三更灯火，五更鸡，伴我读书到天明！ 夫人很重要人民网1月12日电 据台媒消息，李登辉昨晚参加台联党的造势场合，炮火猛烈，既批陈水扁，也讽吴淑珍。李登辉说，他在蒋经国时期担任“副总统”的时候，蒋经国曾经告诉他，用人时要先看他的太太，看他太太好不好。“这句话我当12年‘总统’都很小心，如果太太不像样的话，先生也没办法把事情做好。确实是如此，对不对！？” StreamAs for me, yep, it is me. In these weeks, life gradually turned out to be more and more peaceful, sometimes excited, although a little tired. Something, not what you mean, is not what I mean. It is like a stream. I felt that.
2.2Km -- 12/01/2008
Thinking while swimming. January 01 New year!2007--Review
2007-01-01
Having a dinner with Qiweidong, Yangliuchun after snowing in Beijing.
That is my saddest time, but a new beginning. Thanks my friends.
2007-04-21
Travelling to Denmark, France, Germany using money from Fan and Rainy
A good experience. Thanks my friends and parents
2007-06-05
Passing the thesis defence, drunk with Wangjingsong, Wenfei, Chenyinxi, Gongwei, Yangliuchun, Zhenglei
The happiest time in my five years.
2007-07-18
Leaving Tsinghua
I love you. My university. You are the best, always.
2007-09-18
Arriving in this island.
Knew my new freinds: Yanlei, Yaohongjuan, Panyixuan, Qiuyarong, Huixiaojuan, Likuijiang, Liguopeng
We had been a 8-group.
2008--Hope
Complete my RESEARCH PROPOSAL. I need an excellent one. Must be distinguished. That is your responsibility.
Live a good life. Get driving license. Rent a house. Have friends. Maybe a lover.
Travel around Europe and America.
Continued to be healthy.
Thanks, my friends.
You all give me selfishless supports anytime and anywhere.
Best wishes to :
Nanjing-Shanghai-Shenzhen-Guangzhou-NJUST-Huawei-Bell:
(1997-2004: We studied and worked together)
Zhangyang, Qianqun, Fuheping, Jiangdehui, Caojing, Jiangshenquan, Zhangxun, Louxingling, Wangyufen, Chencibai, Wangjing, Songli, Gaoxuelian, Wangtao, Guwei, Maxiaoyan, Qiuping, Huangyi, Limei, Huiguangping, Chenjuan, Zhoufan, Chenhaitao, Liuwei, Pengjiankang, Wuqiong, Xieqing, Sunxiang, Hulei, Gaopeng, Zengdehong, Liuxuefeng, Wanqian, Gutiejun, Sushiying, Lihanfan, Zhangyusi
Beijing-Copenhaven-Britain-Tsinghua-DTU-UN:
(2004-2007: We studied and fighted together.)
Zhanghehua, Hefei, Wanhai, Wangrui, Yangliuchun, Lili, Wenfei, Huangyan, Zhoujun, Zhongpeide, Zhangpin, Wangchunmei, Liyousheng, Yueziyi, Zhenglei, Wangjingsong, Chenyinxi, Liushihai, Xujun, Xushijie, Gongwei, Qiweidong, Guming, Songxiaoyu, Qiuyarong, Panyixuan, Yanlei, Wangchun, Likuijiang, Yaohongjuan, Huixiaojuan, Joao, Roland, Ondraj, Alexandra. December 28 3amWoke up again at 3am. Cannot sleep again at 3am. Why always 3 am? There is something lack at 3am. There is somebody lack before 3am. 3am, you are my soul. Believe me. Love me. Never give up me. Dear 3am. You will never know why. Just go to sleep again. If you could understand Send me an email at 3am. Dear me Never go to hell at 3am Touch my soul before 3am. I will love my future without 3am. God Bless England. God Bless America. Who Bless me? My soul and my spirit. Myself at 3am. SoulMy body is floating in the air. My soul is under ground. Who could touch my soul? Who could feel my heart? She is the one I gonna need. December 23 Lust Caution!Movie, not me: You are my woman whether you are alive or dead. In her heart, all things are whether this man really loves her. Nations, Parties, and hates all disappeared. I must KILL her, even I love her. I am an animal when I am in love with this woman. I am a cruel killer when I am normal. I have no choice. December 22 To the end of 2007 How time fast? I am nearly 28. Another ten-year passed since I knew I existed in this world. I have been learning what is real world and feeling what is real loving within these ten years. The progress is slow. Until three years ago, I didn't really know too much about them. What is the next ten years? What do I want for my future life? FAMILY. I will build and run a family. Compared with software programming, it is harder. But I want to try using part of my life or whole my life. JOB. I really need a job. Do what I want to do. Do what I love to do. Do what I can do. Say goodbye to my past. December 21 "This short part of my life is called happiness"I watched a movie named "The Pursuit of Happyness". Really, here is 'Happyness', not 'Happiness'. That film tells a story about a man, an ordinary black man in San Francisco. This guy failed in his business --- sales a kind of medical machine. His wife left him. His landlord drop them out. He had no friend. He lost everything. There are only 21 dollars left in his wallet. With his son, he must rush everyday to "fight" with others, then get a free bed from Church. He must work hard everyday to learn, then get a chance to enter into a financial investment company. He spent his sleeping time to repair medical machine. At last, he went through his hardest time of his life. When he got a job, when he repaired the machine, when he get some money to raise his son, he said: " THIS SHORT PART OF MY LIFE IS CALLED HAPPINESS". In my memory, I got the almost same status as him, although not worse than his. At that time, I have no money, I lost everything. I must hurried up to read, write, think, and take part in examinations. I went through it. What is happiness? HAPPINESS is you could get bread and bed, while so many persons are still working hard for them. HAPPINESS is you could go through your HARDEST TIME in your life, while so many guys failed. HAPPINESS is you could face to your life with happiness every day. Knowledge is height. Treasury is power. Wisdom is life. Attitude is happiness. November 08 RolandRoland is so smart that, just a glance, he found the key weakness and essence of my unclear and useless description about Torch Problem.
That's amazing.
What I learned?
Algebaric properties are important to figure a problem out.
That is a basic method to conquer algorithmic problem.
So, try to express your ideas clearly using algebraic expressions.
What I am astonished?
Roland can touch the essence of a problem so deeply, quickly, and clearly.
I want to know how to become the same smart person as Roland.
:-)
My friends, give me an answer.
No?
I will ask Roland by myself. November 05 ThinkingsIt takes me ten years to understand the principles of swimming.
It will take me twenty years to understand the principles of computation.
And all my life to understand the principles of being a kind man. November 03 Some new plansFor every month, I will:
Read an English Book (histories, novels, fictions, politics, poems, or religions).
Do a mathematical book. ( math is not been read)
Recite a classcial Chinese poem or bible.
Recite a classical article in English.
Write a summary about my life, thinkings, and what I learned. Accomplish a little research aim.
Write working diary everyday.
Listen to BBC news everyday. Remember, you should remember forever:
You are from Tsinghua University.
The best university for this great country.
Every Tsinghua Student has responsibility to his country.
Fight for freedom, fight for county, fight for your loving, fight for science.
You guys are the cornerstones of the future of your motherland. October 31 ThinkingsNever run if you cannot walk.
Never know what is running if you never try to run.
Most people just walk for all life.
Life is like a flower.
Most of time for it, is preparing for an instant bloom.
The rest time of it, is recalling that instant.
For most lives, there is no bloom. Some aspects about my loving.What is loving? I don't know. Why do I use this title? I am meant to use it as a representation of the abstract concept which we all know, but cannot clearly describe it or figure it out from other feelings. Admittedly, I am an emotional guy. But, for a long time, I don't know what I want from loving. Up to now, I still donnot know the answer to this question. I am an independent man. I deal with almost everything by myself. For the most time, I like staying alone and keep quiet. I will be sensitive to the changes of weather. I am happy with raining as well as sunshine. I am not alone, great mathematicians and computer scientists, great old Chinese philosophers and poets, and movies and music composed of histories, realties, and ideals, accompanying me as my mental leaders. I am happy with exploring the essence of computation and life. Romanticism occupies main partition of my psychological world. I could take care myself well. My requirement to life is little. Food, clothes, and accommodations are enough for me. Career objective is also not very important for me, althought a not bad job is necessary. I have some friends. Some of them are very good friends. Most of them are female.
It seems that loving is unnecessary for me. Why do I need loving? I make a mistake. I just give my caring to some persons, I think, who are kind to me. But, I don't know, what I want to get from loving. Either warm caring or heart-touching is what I want to get. If you want to get caring, what is the difference between caring from relatives and that from lovers. If you just want to get the feeling of heart-touching, how do you feel when you get the feeling of heart-hurting when you break down with you lover. Loving is some kind of posion. Loving is some sort of warm feeling. However, this is not the real loving what I want. What do I want? Calm down and think carefully using your intuition and experiences. Loving should be something of belief and believing, not just caring and feeling, whether you get or pay. Belief makes loving become a wish for your future life. Believing makes your loving stable and long-term run. At last, loving turns out to be suffering from losing each other some day. Loving changes to be part of each other's body. This loving will have eternal life. This is real loving what I understand.
In the real world, loving becomes complex, because of the intricate relationships between us with the unstablility of loving incurred by new lovers and different backgrouds. Remember, this is an impefect world. But I insist on the belief that real loving exists, just like essence of nature, waiting us to discover. Wisdom, passion, and patience, with some strategies and tactics, are needed on the route to find paritial resolution to this puzzle.
Good luck with you. October 30 Some aspects about my researchWhen I entered into Tsinghua University, I almost knew nothing about how to do research. My brain was filled with all kinds of naive thinkings. To do great research or build a completely new theoretical framework for computation was my extremely naive idea at that time. After three years research self-training and struggling in piles of theoretical computer science and mathematical literature, I realized that doing research is to make little original improvement to some thoery in computer science.
Specifically speaking, my research as a PhD student here is to develop some kind of algebra for isomorphisms of types, objects, or categoires. This algebra is based on generating functions and polynomials in several variables, which will be considered as a connection between algebra, analysis, enumerative combinatorics, type theory, and category theory. In this perspective, my research has a clear but a little big aim. Until now, this is the insight into my research which I acquired from papers reading in this field. In the future month, literature reading about recursive type, subtype, distributive categories, Cartesian closed categories, and Grobner Bases with generating functions, is my main work. As a result, there will be a presentation on TMC about all things in this reasearch subfield at the end of November. I believe, at that time or some time at the beginning of December, I will make more practical and reasonable objective and plans.
Another part of my research is about problem solving. Elegent programs and algorithms make me excited, especially, the feelings I got from Roland's lectcures about algorithms. Some kind of mathematical philosophy behind alogrithm design is revealed, which cannot be awared from an "introduction to algorithms" course. On the other hand, this philosophy cannot be understood if you never take any course similar to the mentioned. Rigour, beauty, and grace of mathematics are demostrated in some very simple and intiutive algorithms, such as, simple sorting algorithm. To find algorithmic or constructive solutions and proofs for problems or puzzles is the basic route for this research field. Some words appear, e.g., intuitionistic logic, constructive logic, when I use this viewpoint to see algorithms.
That is my elementary understanding about my research until now.
The reading list is as follows:
Books:
Conceptual Mathematics (category theory)
Ideals, Variaties, and Algorithms (commutative algebra)
Theories of Programming Languages (type theory)
Isomorphisms of Type (type theory)
Generatingfunctionology (generating functions)
Concrete Mathematics (generating fucntions)
The art and craft of problem solving
Algorithmic Problem Solving
Papers:
Isomorphisms of Generic Recursive Polynomail Types. (Kenerl Paper)
Objects of Categories as Complex Numbers. (Important Paper)
with some papers about subtyping and isomorphisms of types using algebraic methods and categorical views.
Some aspects on how to be accustomed to the new environmentThe new environment is a challenge for everyone overseas. How to adjust yourself to live with the new environment is a vital course for us.
The first thing, in my opinion, is to adapt your attitude and make pychological adjustment. Don't be afraid or shy. That is very common to feel uncomfortable when you are placed in an alien culture. Every overseas student has the same feeling as you. You are not alone. You should believe yourself. You could and must survive through this hard time.
Language is another main factor which affects your mentality. You may not understand what the lecturer said completely. You may feel embarrassed when you cannot express your ideas clearly. Forget it. Just try to catch every chance to make you progress everyday. For instance, you should listen to BBC news 24 everyday, and try to express your ideas with accurate and suitable vacabularies and sentences, when you are chatting with your friends on the Internet or writing this sort of blog. To think and record your ideas in English is another good and gradual method to improve your English thinking. Don't be afraid to make mistakes, speak aloud and clearly. Another important thing we could do is to make good preparation for lectures, presentations, seminars, and group discussions. No pains, no gains.
Loneliness will make you sad for a very long time. Almost every weekend, you are alone. Try to enjoy lonely time and make yourself calm down. Noisy is unhelpful for defend the sudden attack of bad emotions, caused by bad weather, homesick, or breakdown with your boyfriend or girlfriend. Friends are good medicines to help you go through the sadness forest. In my view, parties, societies, and similar activities are little helpful to change pessimism. Building confidence to your new environment is based on the improvement of your adaptation abilities, including language, attitudes, and something about life philosophies.
Please forget what I said. When I completely forget about these things, I succeed in my overseas life. October 26 A little sunshine in cloudy sky.For one month I had been here. From the bottom of my heart, I love the life here, my new friends, my supervisor and members of our group, although sometimes I cannot completely understand what they said. I am very lucky. Life is random. Some time is up, some time is down, just like the sea waves. This is a really unperfect world. What we will do is just to obey the laws of nature.
I woke up. Walking in the light just before daybreak, made me recall my primary school time. Everyday morning, my parents woke me up and hurried me go to school. Now, I hurried myself write this blog. Quiet makes me calm down.
I am not smart, just know accumulation is vital.
Make progress everyday. October 25 Cloudy.First English Poem:
0.There is a kind of missing is not loving.
1.There is a kind of caring is not just caring.
2.Among us relations are becoming blurring.
3.Among us thirsties are red wine and dancing.
At that time, in Tsinghua University,
I got some time to think about
my life, my furture, my loving, and my emotions.
I wrote something in Chinese poems.
Today, here, I got some different feeling,
when I was enjoying my breakfast in this cloudy UK morning.
Some deep sadness flew out my heart
through my brain
into the clouds in the sky.
My morning are beginning with Binomial Coefficients and Generating Functions.
My morning are beginning with light missing for my lovings and my homeland.
5.You are my loving which makes me suffering.
6.You are my suffering which turns out to be loving.
7.God arrange everything.
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