Ivan’s private site

December 26, 2007

Very deep is the well of the past…

Filed under: General,Private — Ivan Herman @ 16:53
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“Very deep is the well of the past. Should we not call it bottomless?”

This is how the prelude of Thomas Mann’s wonderful novel “Joseph and his brothers” begins. I remembered this sentence while reading Lin Yutang’s novel “Moment in Peking”. Published in 1939, the novel is a typical “family novel”: it traces the history of two Chinese families in Beijing, Hangzhou, and elsewhere in the first half of the 20th century. History against the background of tumultuous and tragic events in China, starting by the boxer rebellion until the Japanese wars in 1937-38.

Why that quote? Because books like this may be essential in trying to understand a country. The ups and downs of today’s China cannot be understood without understanding the history of the past 15-20 years, both within and outside of China. But for that one should have a clear idea of the horrors of the Cultural Revolution, and of the abyss of Mao’s reign. However, it would be way too easy to explain those years by referring to one person, or even to a small clique of persons only. No, understanding that requires an insight into what happened in the first part of the 20th century, how a reign of corruption and chaos followed the collapse of the traditional, imperial China at the turn of the century, a system that tragically outlived its time; how the opium trade ravaged part of the country, or how the Japanese armies were the responsible for indescribable horrors during their invasion of China. And, of course, one should go back in time, understand the 19th century and the 18th,… Indeed, very deep is the well of the past.

Nobody can claim to have a clear view of all history, not even those whose profession is to understand it. But books like the “Moment in Peking” are at least of some help to get a glimpse into that well. A long book, but if you are interested in the history of China (but even if not particularly…), it is well worth reading it.

December 22, 2007

Amsterdam in Winter

Filed under: General,Private — Ivan Herman @ 17:48
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The past few days were quite unique in Amsterdam (and the Netherlands in general). It was dry and cold. But this is the Netherlands, which means that in winter the air is always a bit humid; the result is that white frost covered all the trees (and vegetation in general) all around the country. Yesterday it was misty, too, which added to the very special atmosphere; but today it was also sunny, with beautiful blue sky.

The result was quite amazing and beautiful. The scenery (eg, in one of the big parks of Amsterdam called Beatrixpark where we walked around today) was really like from a Christmas postcard!

Merry Christmas everyone!


Beatrixpark, Amsterdam

December 21, 2007

Binding your flickr profile to foaf

Filed under: Semantic Web,Work Related — Ivan Herman @ 10:47

A friend and colleague of mine drew my attention to Alexandre Passant’s service to extract your flickr profile in RDF (and, possibly, bind it to FOAF). Nice stuff. The only small caveat I ran into is related to the terminology used by flickr. Naïvely, I believed that the name I use on flickr (ivan_herman) is my UID. So I went to Alexandre’s service, and generated:

http://apassant.net/home/2007/12/flickrdf/data/people/ivan_herman

which is practically empty. However, Alexandre helped my out here (thanks!), telling me that what flickr calls a UID is a pretty cryptic stuff (26226551@N00 in my case…) that one can find out, for example, by looking at:

http://www.flickr.com/services/api/explore/?method=flickr.people.getInfo

And, indeed, that worked well: I can get to my flickr profile via

http://apassant.net/home/2007/12/flickrdf/data/people/26226551@N00

and I can bind to my foaf file by adding

<owl:sameAs rdf:resource="http://apassant.net/home/2007/12/flickrdf/data/people/26226551@N00"/>

Cool! The extra nice aspect of this is that it is not a one-time action, but a stable URI. What I mean is: if I change my profile in flickr, the RDF extraction will reveal the new information right away. This is better than, say, the facebook foaf generator of Matthew Rowe that does a one time conversion of your facebook data, but that you have to repeat every time you do a change in facebook. (No critique on Matthew. I can very well imagine that setting up a full service like Alexandre’s is trickier in the case of facebook. This should really be a ground service by facebook itself…)

December 20, 2007

Schengen (non–)borders

Filed under: General,Hungary,Private — Ivan Herman @ 10:16
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As a child, I used to travel every year from Budapest, Hungary, to France by train. One of the crucial moments of the trip was the arrival to the station of the border town between Hungary and Austria, namely Hegyeshalom (don’t worry about the pronunciation…).

These were the 60’s, ie, the glorious days of the cold war. As the train rolled into the station, soldiers surrounded the train: one guard for each door of each carriage on both sides, all armed with Kalashnikovs; others walking around the station grounds with guard dogs. Officers boarded the train, thoroughly checked the passport of each and every one. Their behaviour was based on the assumption that we were all suspects and guilty, and treated as such, until proven otherwise. Then it was the turn of the customs officers, opening luggages, looking for either forbidden books, journals, newspapers, or simply (when coming back to Hungary) some Western goods that were considered as luxury in Hungary and were therefore to be taxed. For the child of around 10 that I was at the time these were fairly chilling moments… I must admit those images have become encrusted in my mind forever.

Of course, as years went by, things eased a bit: guard dogs disappeared (I guess in the 70’s), there were fewer soldiers (only one on each side of a carriage, not two; what a major improvement that was!), they stopped having Kalashnikovs in favour of just hand guns, the custom controls became sloppier… But the system itself was around in some way or other up until the 80’s.

Why do I write this now? Because Hungary joined the Schengen Agreement a few years ago and, tomorrow, all border control will disappear between Hungary and most of its European Union neighbours (the only exception is Romania, and that exception will also disappear in a few years’ time). One can drive by train or by car from Budapest to Amsterdam or, for that matter, to Nancy (the target city of my childhood trips) without being asked for identity papers, passports, anything; without even seeing a border control post. Actually, I expect that some trains would not even stop at Hegyeshalom any more. Western Europeans take this for granted already (do you think about this when taking a train to Brussels from Amsterdam or Paris?) but it was a long road for a country like Hungary. The world has definitely changed.

There is hope.

December 10, 2007

Semantic Web stuffs at WWW2008

Filed under: Semantic Web,Work Related — Ivan Herman @ 14:14
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Of course, the refereed paper program for WWW2008 is still under review, but some other elements of the week begin to take shape. There will be some interesting entries for people interested in the Semantic Web, too. Not only will Tim give a keynote at the core conference, there will be some related workshops and tutorials, too.

The workshops include:

Although not labeled as “Semantic Web” either, I expect the Web Science Workshop to be of a primary interest, too.

As for the tutorials, the list includes:

  • A Semantic Multimedia Web: Create, Annotate, Present and Share your Media
  • Interlinking Online Communities and Enriching Social Software with the Semantic Web
  • RDFa: Extensible Structured Data in HTML
  • Introduction to the Semantic Web

I am sure that refereed paper track as well as the developers’ track will also include good stuff! This will be an interesting week…

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