Everyone and Everything

Google Chrome is just result. Real power is from V8

September 12, 2008 – 12:27 am
People gave a shout of joy to google's new browser 'Chrome'. Chrome has fancy exterior and several fascinating features and the speed is wonderful. Although it has some problems, it must be a dark horse in the world of web browser. However, the hero of this article is V8, not Chrome. The power of chrome is originated from V8 engine. V8 javascript engine has incredible processing power. Below grph shows the benchmark of javascript's processing. Some people sensed the potential of V8. There are a lot of script language in the world. Javascript is ont of them, and many languages have similar features like a Garbage Collection. Ruby is one of them. rbv8 is a ruby vm running on v8. rbv8 shows amazing performance. In some case, rbv8 runs about 10 times faster than official ruby vm. Here is the benchmark of rbv8. Another article talks that V8 is little slower than ...

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Jungmisan Winding

September 7, 2008 – 12:55 am
Jungmisan is one of the favorite places for winding. Usaually, challengers run from Jungmisan observatory to Hanhwa Yangpyong Resort. However, I didn't go to resort because there are many anti-speeding sill and bad surface. Downhill course is a one-lane way. And corner has anti-speeding road. Uphill course is better. Many parts of road is a two-lane way. Challenger also needs to be careful because of several holes at some corners. Today I drive the whole course 8 times. First time, I run slowly to observe the course. I also tried to memory the course. I raise the speed slowly at each turn. I am not a good driver. But I believe that I will be better. I record my run using my windows-mobile phone including GPS. I use tracky. Tracky is a wonderful GPS S/W. I records location, speed, G-force and altitued using tracky. Tracky has track analyzer that presents several parameter's ...

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Yahoo! Research Berkeley

August 11, 2008 – 12:42 am
Recently, I have great interests in Yahoo!. I got to know that Yahoo! invests a lot for LBS. For example, Fire Eagle is representative. In some aspects, they concentrates on LBS more than Google. Yahoo! Research Berkeley is one of the Yahoo!'s research labs. Below is their mission. Yahoo! Research Berkeley's mission is to explore and invent social media and mobile media technology and applications that will enable people to create, describe, share, find and remix media on the web. Our work combines the fields of media technology, social software, context-aware computing, mobile computing with user and design research to help shape the future of Internet media. "Zone Tag" is one of their project. Zone Tag adds tags to photo or recommends tags to user using location info. How can we express location? Location can be easily expressed with map. However, map has several limitation in mobile device. Coordinate is difficult to people. ...

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Seonjeongneung (선정릉)

July 8, 2008 – 11:50 pm
Seonjeongneung is the royal tombs of two king and one queen. The Seolleung (宣陵) is the royal tomb of the 9th King Seongjong (成宗, 1457-1494) of the Joseon Dynasty and his lawful second wife, Queen Jeonghyeon (貞顯王后, 1462-1530), from the Yun family. The Seolleung unusually had a lot of mishaps and suffered an indignity. During the Imjinwaeran (壬辰倭亂, the Japanese invasion of Korea in 1592), the royal tomb was dug up and the Jaegung (a house built next to the tomb for sacrificial rites) was burned. In 1625 (the 3rd year of King Injo), the Jeongjagak (a T-shaped house built for sacrificial rites in front of a tomb) was set on fire and then repaired. In the following year, another fire broke out at the tomb. The Jeongneung (靖陵) is the royal tomb of the 11th King Jungjong (中宗, 1488-1544) of the Joseon Dynasty. Initially, King Injong created the tomb of ...

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Where 2.0 2008

June 29, 2008 – 12:13 am
I participated Oreilly's Where 2.0 2008 conference. It's 4th where 2.0 conference by O'reilly. There are many big sponsors like a Google, Microsoft, Nokia, Yahoo!. There are over 900 participants. I listened 41 sessions and 2 tutorials. The main trends of where 2.0 2008 are summarized like belows. Real World Online: making same virtual world from real world's photo and map Data Visualization: show the several kind datas, like a statistic data, on the map or satellite image. Social Data: making more interesting and useful social networking service using location information. The Need for Standards: Now we need standards about location-based service. Location Sensing: For location-based service, we need to know the location of the someone or something. Positioning technology is essential. It is impossible to introduce all sessions. So I choose 3 topics. First is Fire eagle of Yahoo!. Yahoo! want to be the location information broker. Fire eagle provide open interface for location saving and using. ...

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