I had the chance to stay in Takayama, a lovely town in mountainous central Japan for three days during a business trip attending a scientific meeting there. Already on the train from Nagoya I noticed that quite a few foreign…
See more ›
Monthly Archives: October 2011
Tourist invasion in Takayama
No hair – no pain
Last weekend I hurt one muscle in my right hand (just around the palm) and since I wanted to accelerate the healing process I went to a drug store and bought this plaster which contains Menthol and vitamin E. I…
See more ›
Merging my homepage and this blog
For long time I was keeping my homepage up-do-date and I have been posting on this blog. More than half a year ago I ported my homepage to Drupal and thought that things become more easy, but it turned out…
See more ›
Tagged with: Blog software, Content management systems, Drupal, WordPress
Posted in computer, programming
Posted in computer, programming
Yes we can (use chopsticks)
I am here in Japan for five years and at almost every social event (office party, year end party, private dinner, etc.) I hear something like “Oh, you can handle the chopsticks very well”. I talked with several other foreigners…
See more ›
Formal errors of bilinear interpolation
The bilinear interpolation is a quite useful mathematical approach when it comes to interpolation in a two- or higher-dimensional regular grid. Other than a nearest neighbour approach or simple block averaging, this method provides a somewhat “continuous” field. Thereby, one…
See more ›
Tagged with: Bilinear interpolation, Interpolation, Linear interpolation
Posted in computer, math, programming
Posted in computer, math, programming
Running event entry slots
Yesterday I got an email saying that my number was not drawn in the lottery of the Tokyo Marathon 2012 (chances were around 10% or less to get one of the slots for that event). As I already expected this…
See more ›
The impact of constraints on linear least-squares problems
OK, this post is going to be a little bit longer than the usual article which I am writing here. First, I was thinking to summarize my thoughts in a short note, but why not post it here directly? So…
See more ›
Tagged with: Estimation theory, Least squares, Linear least squares, Mathematical optimization, Normal distribution, Standard deviation, Statistics, Weighted mean
Posted in math, programming
Posted in math, programming
Applying the KLT to my blog stats
A few months ago I wrote about the Karhunen-Loève Transform (KLT) which could be an interesting alternative for continuous wavelet transforms. I almost forgot about that topic, but today I stumbled over it again. Thus I applied it to my…
See more ›
Tagged with: Digital signal processing, Karhunen–Loève theorem, KLT, Mathematical analysis, Mathematics, Numerical analysis, Wavelet
Posted in computer, math, programming
Posted in computer, math, programming
Sailing against the wind – or how Japan invests in its future
In times of budget cuts, efforts to save public spending and provision of funds for re-construction and clean-up after this year’s Earthquake, tsunami and nuclear accident, Japan seems to do the right thing and invest into its future. As this…
See more ›
Euro/Yen exchange rate
This morning I checked the Euro/Yen exchange rate on XE and saw that it is coming closer to 100 Yen. This magically boarder is maybe surpassed this afternoon. If I remember correctly, the exchange rate was somewhere around 145 Yen…
See more ›
Tagged with: Currency, Economics, Euro, exchange rate, Foreign exchange market, Japan, Japanese yen, JPY, Money
Posted in Japanese
Posted in Japanese
- book (5)
- computer (147)
- Drink (55)
- Food (73)
- GPS (18)
- handy phone (6)
- ionosphere (1)
- Japanese (177)
- math (57)
- paper (26)
- physics (19)
- programming (81)
- Spicy recommendation (30)
- sports (30)
- travel (81)
- Uncategorized (95)