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I had felt an interestingness when I used the seesmic. I had kept thinking that it is really interesting because its service is cool. But recently, I found that it might be not truth.

I have tried plurk.com since yesterday. It seems to have an interestingness same to what I had felt from seesmic.

And I found the interestingness comes from not its own uniqueness nor good design but from its users. New community site is a meetup place for early adoptors.

They usually add me as a friend even if they don't know about me. And they speak to me friendly. These are all good enough user experience of which I think this service is nice.

posted by Png takiuchi on Tue 3 Jun 2008 at 17:22 with 2 comments

The language is the first tool and is the last shackle.

Or rather, every useful tool easily becomes a shackle. The more useful tool is the stronger shackle. The language is the most useful tool for us mankinds, whether programming languages or natural languages.

posted by Png takiuchi on Sun 4 May 2008 at 11:44

Rails勉強会@東京第29回(The 29th Rails Study Meeing Tokyo)

This is a study meeting of Ruby on Rails which periodically takes place once a month since November of 2005. I have attended for over two years. There are many interesting sessions about Ruby on Rails. The meeting usually has 4 tracks and they are separated into two periods with a break time.

If you happened to be interested, how about joining in?

posted by Png takiuchi on Sat 12 Apr 2008 at 22:26

AWS (Amazon Web Service) including S3 and EC2 had downed again (See here)

We may have a need of balancing our services over the several EC2 clones. Fortunately, there have already been several computing clouds on the Internet. But there are no compatibilities between them. Their interfaces should be standardized. I think that the spec would become similar to EC2 because of its accumulated experiences.

BTW, I can't stop recalling the story of Permutation City of Egan.

posted by Png takiuchi on Tue 8 Apr 2008 at 08:58

Insecure OPs easily bring problems to consumers trusting them. I think that there should be a kind of world wide reliability evaluation system for OPs. Suppose every OPs has its score on the list of OPs and they should make an effort to keep its score high. RPs are able to exploit it to know which OP is trustworthy.

But obviously, the list is centralized. This is the SPoF and is a quite big drawback. It should be kept decentralized as well as OpenID itself.

posted by Png takiuchi on Tue 1 Apr 2008 at 01:39

These days, I have been thinking about OpenID. It is able to gather privacy informations at one place and they would be maintained easily. On the other hand, thus it may become easy to cause a security crisis.

In order to find the solution, I have thought for a while. I think that the secret sharing scheme (SSS) could be useful for solving this problem. In other words, it could be reasonable way for achieving convenience and security to share the encrypted privacy informations between several OIPs by using SSS.

But I have no idea to make it run on the current OpenID spec. Hmm.

posted by Png takiuchi on Tue 25 Mar 2008 at 03:33

I have introduced here(Japanese) how to make your rubygem about a year ago. After that, time has passed quickly and many things have become old. So today I would like to report about followups of that methods.

At first, please recall the methods. First one which Mr. Secondlife had told us here(Japanese) is the method using the NewGem. Second one I told is to use the Hoe. The Hoe is the rubygem which makes a skeleton of gem easily. They are still useful ways.

Finally I found the new hope. That is the cutagem.

cutagem documentation

cutagem (Cut a Gem) is yet another executable for creating gem skelton. This is similar in concept to newgem but more customizable for each user.

This is very simple and able to generate a more customizable Rakefile than the Hoe. It seems very interesting. I will try it for a while.

posted by Png takiuchi on Mon 24 Mar 2008 at 04:26

I am worrying about the future of our natural right on the Internet. Here right I say is for us to be human obviously. In a word, it is becoming harder and harder for computers to distinguish human and bot.

Our activities on the Internet is too simple to recognize ourselves as human beings. There are only click, click, click many clicks and sometimes typings. Needless to say about clicks, nowadays, even typings are easy to be imitated by using algorithms of a sort of Markov-chain.

I think that this problem is worth discussing more. If we lose this identity war, most of internet companies will lose their values brought by advertisements.

I guess that the identity provider such as OpenID Providers becomes very important role in near future. They will become providing not only an identity but human proofs.

posted by Png takiuchi on Fri 21 Mar 2008 at 16:30

This is a free blog system designed for especially engineers. It has following features

  • Mathematical expressions by LaTeX notation

    
L_o(x,\vec{w}) = L_e(x, \vec{w}) +
\int_\Omega f_r(x,\vec{w}',\vec{w})
L_i(x,\vec{w}')(\vec{w}'\cdot\vec{n})d\vec{w}'

  • Highlighting source code
       1  def ruby_method
       2    puts "Hello, world!"
       3  end
    
  • Customizable side bars
  • SPAM-free comments by OpenID
  • Automatic trackback receiving
    • It will be automatically detected if your article got linked.
  • Extended MARKDOWN notation.
  • Ready to OpenSearch

It is ready to be used as we've already done for 4 months. But as you see, this is a REAL beta, because of having nearly no documents.

Please feel free to try it. And any feedback will be appliciated.

posted by Png takiuchi on Thu 20 Mar 2008 at 17:16 with 1 comment

I remember a lot of his works I had read when I was a child. Especially I'd loved "Childhood's End" and "Rendez-Vous With Rama".

I think that his achievement tells us that the science fiction is not only a sort of fictions. It can have a mission of a prediction of the future for us. It may be possible even to make our future if it was written by excellent SF writer such as Arthur C. Clarke.

We engineers have been chasing their works. Sometimes we have achieved or forestalled them even, but yet there are too many things which are waiting for us.

I pray for the future to keep attractive futures.

posted by Png takiuchi on Wed 19 Mar 2008 at 14:03