Wine

Banyuls is a sweet red wine.

Brouilly is a red light fruity wine.

Grains de Giare is a sweet white wine.

Voila,

France-Japan Cultural Gap

This site lists the interesting comparison between France and Japan.

http://koko-hen.jp/archives/2173399.html

Cultural comparison is always interesting. This site describes very well. From my experience, these are considerably right. France and Japan have many common points but if you step back and look at both objectively these two countries are very very different.

The more I stay in France and learn French language, the more I feel I never be able to understand French. But what is important will not be to understand, but to feel home and like it. The reason will come from another source.

Least Square Method (LMS)

I'm currently working on a project which requires least square method, either linear and non linear. there are several ways to use it, like how we define its residual. I was trying to find best answer, but it was hard. In this case, this is a helpful advice.

「・・・これは一つの最小二乗法のやり方であって、他の方法もあるでしょう。

方法が違えば、最適値も違ってくるでしょう。仮定が違えば、値も違うことになりますが、
それはそれでいいんではないかと思います。

そもそも、データー処理の数学は、厳密数学ではありません。

統計数学と同様に、アバウトな数学なのです。」

LSM with weight is needed for robust estimation.

測定誤差はふつう正規分布。最小化したい残差にあたるものに重みをつけると良いのではないか