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NullVoid » Life NullVoid » Life

Life

A Message from a Student

Monday, May 21st, 2012 -- By ET

Dear Prof. Zhang,

I thoroughly enjoyed your isom 2010 course this semester! I have been so inspired by you and this course has made me more of a proactive and outside the box thinker! I had joined the uni with the ambition of hopefully becoming an entrepreneur pursuing econ and finance as a major but now face a dilemma because this course has sparked my interest in Information systems due to not only the knowledge learned but also the skills gained! Thank you so much!

TINTIN!

Tuesday, October 4th, 2011 -- By ET

Blue

Wednesday, August 24th, 2011 -- By ET

Colors

Wednesday, August 24th, 2011 -- By ET

Boat & Books

Wednesday, August 24th, 2011 -- By ET

The Myth

Thursday, June 16th, 2011 -- By ET







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My Myth

 

Many ions ago there lived a powerful and beautiful goddess
called Claudia. Claudia was gentle and kind and she lives in a village full of
gods that sat on top of a cloud which floated about in the turquoise blue sky.  Claudia was the goddess of weather so she
controlled the wind, sun and the clouds. Every morning she would go to the
middle of the village and make the sun rise, and then she would decide what
weather she wanted.

 

Meanwhile in the underground was Zeuseus, a big and evil dragon
with eyes as black as coal. Zeuseus lived in a castle that looked like haunted
house. Zeuseus was mad that no flowers ever grew in the underground even after
he planted some seeds because there was no water in the underground.

 

One day Zeuseus flew out of the underworld went to fly around
the forest he saw a poster stuck on a bark of a tree. On it said:

 

Servants needed, please call Claudia The Weather God at
456123789 or email a message before 30th January Thank You!

 

Just after Zeuseus read the poster on
the bark of the tree he reached out and grabbed the poster of the tree, and
flew back to his house.

 

When Zeuseus went back home he wrote down his evil plan to steal
the rain clouds from Claudia into his notebook this is what he wrote:

             
    Plan to steal the rain
clouds

 

Dress up as a god and call Claudia to say I take the job to be a
servant.

Then when she’s not looking I will coax the clouds to follow me
or I pretend I need to borrow the rain clouds but never give the rain clouds
back.

 

  

When he finished writing his plan he stepped back to admire his
work then he remembered the purpose of writing the notes.

 

Zeuseus disguised himself with his magic, called Claudia and
flew of to Claudia’s palace in the village of gods floating in the clouds.

 

Zeuseus was warmly welcomed when he arrived at the palace, and
just as he hoped he was working in the room with the balcony where the rain
clouds hanged about and there were all asleep! Zeuseus couldn’t believe his
luck.

 

 When he made sure no
one was looking he changed back to his real form, grasped onto the clouds and
flew back to his underground home.

 

When Zeuseus got home he tried to make the clouds to do what he
wanted them to do but the clouds always refused and did the opposite of what
Zeuseus wanted them to do.

 

Just as Zeuseus was about to give up, a letter slipped in from
the Mail box hole, Zeuseus picked it up and opened it:

 

Dear Zeuseus,

I know that you stole my rain clouds and I would like to have
them back. You could borrow them for nine months if you would not cause any
more trouble with the weather.

                 
Thank you!!!

                
Claudia

 

Zeuseus wrote a letter back:

 

Dear Claudia,

 

I would not like to borrow your clouds because they wouldn’t
listen to me!!!!!!!!!!
    

            
Zeuseus

 

After Zeuseus finished writing the letter he sent the clouds and
the letter to Claudia.

 

And that is how sunny days and rainy days were created.

                 
 

                        
The
end

 

Best Birthday Gift

Friday, June 3rd, 2011 -- By ET

It was my birthday on June 1 (yes, the children’s day, that’s why I don’t get old).

My friend John was visiting, he was bored so dragged me to watch the Horse Race in Happy Valley.

The point is really not watching horse. We were busy checking the statistics of the horses and played a few hands. I typically don’t do gambling because I always believe it is a form of “stupidity tax”. This time, however, I played. Of course, we lost.

Just before we were ready to leave, I got the email (can’t imagine the days without iphone). It was the acceptance letter of my paper by Management Science.

So I guess this is the best birthday gift ever. I started working on that paper in 2003, then presented it in 2005. Presented it as my job market paper around the world (literally), and it won me quite a number of great job offers. However, it was such a long journey to publish it. It stayed at one particular journal for 18 months before I got two very irresponsible reviews.

Probably we were one of the first to write on the topic, when we first submitted it in 2006/2007 the reviewers could hardly understand what we were talking about. After several years of extensive study by many other colleagues, finally the value of the paper gets recognized. When we submitted it to MS in 2010, one of the reviewers said:”This is a very timely study to look at dynamic features of keyword auctions, while the majority of the literature still relies on static models.”

Some friends asked me if the reviewers knew the “inside information” of my birthday. I guess not, even if they do, it would be hard to coordinate so that the editors can send out the notification exactly on that day.

For the record, my dear reviewers, please do not wait to surprise me only on my birthdays. Surprise me now! Surprise me any time!

Thoughts on Survival of the Fittest

Wednesday, March 30th, 2011 -- By ET

The theory of the survival of the fittest suggests that species adapt to the environment to survive. For example, insects may develop colorful patterns on their wings to scare off potential predators. The biological foundation for such changes and adaptations can be gene mutation.

Then a question arises: suppose mutation can trigger some effects so that an animal suddenly becomes poisonous. Why the poisonous feature cannot stay like the colorful pattern on insects? Fortunately not, if yes, then many things we see today will be poisonous!

One explanation is that the colorful patterns are salient features, so they can immediately be effective to protect the insects. In the long run, this feature can be passed onto future generations. The poisonous feature is not salient. So a wolf will continue to eat that poisonous rabbit and there is no chance for the poor rabbit to pass on this great feature.

In a sense, these poisonous rabbits are like experience goods. Before you consume them, there is no way for you to know their quality. You only learn about their quality after you eat them, but then it is often too late for you to regret. It is a blessing for us that there is no review systems (e.g., those similar to Yahoo movies, Yelp, etc.) in nature. If yes, then the poisonous rabbits can pass on the feature and today we will have to face many more poisonous animals.

My Social Graph on Facebook

Sunday, February 13th, 2011 -- By ET

My Kung Fu Daughter

Saturday, November 27th, 2010 -- By ET

Took when she was 1 week old.

[youtube]http://www.youtube.com/watch?v=t06PeqoZHH0[/youtube]


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