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Monthly Archives: April 2010

Zamanda yolculuk (henüz) mümkün olmasa da…


Serin bir avludaki şadırvanın parıltılı sesini dinleyip nargilesini çekerken konuşmaya başladı yavaş yavaş: “Ebedi istirahatgâhına varmadan önce karar vermelisin, turist mi olacaksın yoksa bir gezgin mi hayat denen bu güzergahta…”

Küllerini güzel Europa‘nın üzerine savuran dev Eyjafjallajökull‘un gazabına aldırmayan Zeus güneydeki halklara güneşli bir gün sunarken, o topraklardaki yeni gezginlerden biri olarak aylaklık etmeye karar verdim ve yol ortağımla birlikte eski ayin ve pazar yerine vardık. Zihnimde org çalmayı seven bir bilgenin nadide eserlerinden birinden birkaç düşünce dolaşıyor, hayal meyal hatırladığım bir cümle ise aklımı kurcalıyordu: “Klasikler herkesin bildiği ama hemen hiç kimsenin okumadığı eserlerdir.”

500-600 yıllık taş binaların gölgesindeki dingin şekilleri takip ederek yürürken aklıma Vespucci‘nin ismiyle taçlandırılmış topraklarda yaşayan bir dostumun yarattığı eserler geldi. Yakut güzelliğindeki gelenekleri harmanlayan bu dostumun paylaştığı tınılar beni ‘carillon‘ denen dünyanın en büyük müzik enstrümanını biraz daha tanımaya sevk etmişti. Tüm bunların başlangıcı belki de aylar öncesinde tanık olduğum ve beni şaşırtıp sevindiren bir deneyime dek uzanıyordu: Tek bir nota ile, monoton olarak duymaya alıştığım kilise çanlarını bir anda çok tanıdık bir melodi icrası için kullanılırken duymuştum. Önce kulaklarıma inanamamıştım, ses hayaletleri bana bir oyun oynuyor sanmıştım ancak dinlemeye devam edince Verdi‘nin en meşhur eserlerinden birinin katedralin kulesindeki çanlardan çıkıp tüm meydanı doldurduğunu idrak edebilmiştim…

1500lerden kalma bir vleeshuis

1500'lerden kalma bir 'vleeshuis'

İnsan tüm kalbi ile bir çocuk gibi bir şeyi merak ederse acaba görünmez bir kuvvet alanı tarafından tıpkı demirin mıknatısa sürüklendiği gibi arzuladığı cevaplara ve heyecanlara doğru sürüklenir mi? Buna belki yer altındaki cinlerin dilini sökmeye çalışan gezginler bir gün cevap bulabilir ancak o güne dek ben bu soruyu göğsümdeki ocakta pişirmeye devam edeceğim ve dün başıma gelen olayı böyle anlamlandıracağım: “Gel bir bakalım şu ara sokaklarda neler varmış hele, belki güzel bir şeyler keşfederiz,” cümlesi dudaklarımdan döküldükten birkaç dakika sonra kendimizi 1500 yılından kalma bir binanın önünde bulduk. Şimdilerde müze olarak kullanılan binadaki serginin ismi içeri girmek için fazlası ile yeterli bir sebepti: ‘Klank van de Stad‘ yani ‘şehrin sesi’. 600 yıllık müzikal bir yolculuğa çıkmak o günkü planlarımda yoktu ama açık denizlere direnemeyen denizciler gibi ben de daha önce duymadığım seslerin cazibesine kapılmıştım bir kere. Müzenin sessiz sakin koridorlarına ilk adımlarımızı atarken az önce meydanda duyup kaydettiğim melodinin seslendirilmesinde kullanılmış olan ‘carillon’ denen enstrümanın burada yine karşıma çıkması belki de o kadar şaşırtıcı olmamalıydı. Yine de tıpkı bir ‘carillonneur’ gibi (küçük de olsa) bir ‘carillon’un başına geçip bir şeyler çalabileceğimi hiç düşünmemiştim.
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Posted by on April 19, 2010 in Music

 

Live Carillon Performance from Antwerp Cathedral


A carillon is a musical instrument that is usually housed in a free-standing bell tower, or the belfry of a church or other municipal building. The greatest concentration of carillons is still found in the Netherlands, Belgium, and Northern France, where they were symbols of civic pride and status. Some of the most spectacular are now protected by UNESCO as part of the world heritage site the Belfries of Belgium and France.

Taking these information into account I decided to record the live performance of a carillonneur as I was spending my Sunday afternoon at the center of the city of Antwerp. Forget the video part but concentrate on the audio! Every Sunday some carillonneurs play wonderful compositions using very big church bells and suddenly you can find yourself accompanying a tune, such as an opera aria from Verdi. This is an important part of the spirit of Antwerp, Belgium.

Live Carillon Performance from Antwerp Cathedral from Emre Sevinc on Vimeo.

 
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Posted by on April 18, 2010 in Music

 

Moodle hacking: MAGPIE_FETCH_TIME_OUT from 5 seconds to 20 seconds


Being open source and providing some documentation are not enough to achieve high quality software. Moodle e-learning system is open source down to its roots, got lots of documentation, too. However that did not help today much as I was trying to pinpoint a problem regarding adding RSS feeds.

The case was that I was trying to add an RSS feed for a course that used Moodle (version 1.9.x) but getting an error message like

“There was an error loading this rss feed. You may want to verify the url you have specified before using it.”

And then the page automatically redirected to Add Rss Feed page. My debugging efforts would be much shorter if Moodle did the following things:
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Posted by on April 16, 2010 in e-Learning, Linux, Programlama

 

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Two short articles in the intersection of NLP, Computational Linguistics and Psychology


I just read 2 short articles in the intersection of NLP, classical linguistics and psychology. They bring up some critical and important points and I think we’re going to see more articles similar to them in the upcoming years:

- “What Computational Linguists Can Learn from Psychologists (and Vice Versa)“, Emiel Krahmer, Tilburg Centre for Creative Computing, Communication and Cognition, Tilburg University, The Netherlands.

- “What Science Underlies Natural Language Engineering?“, Shuly Wintner, Department of Computer Science, University of Haifa.

 
 

What does Google think about your name?


A short excerpt from a non-existent book that may be titled ‘Virtues of statistical natural language processing’:

According to Google, my name ‘Emre’ (in Turkish) is ‘Chris’ in English: http://translate.google.com/#tr|en|%27Emre%27

According to Google, Turkish name ‘Burak’ is ‘John’ in English: http://translate.google.com/#tr|en|%27Burak%27

According to Google, Dutch name ‘Frederik’ is ‘Sam’ in English: http://translate.google.com/#nl|en|%27Frederik%27

According to Google, Turkish name ‘Ece’ is ‘James’ in English: http://translate.google.com/#tr|en|%27Ece%27

According to Google, Turkish name ‘Gökhan’ is ‘Jennifer’ in English: http://translate.google.com/#tr|en|%27G%C3%B6khan%27

 
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Posted by on April 14, 2010 in Linguistics, Programlama

 

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3rd European Lisp Symposium


3rd European Lisp Symposium – May 6-7, 2010, Fundacao Calouste Gulbenkian, Lisbon, Portugal

Scope and Programme Highlights

The purpose of the European Lisp Symposium is to provide a forum for the discussion of all aspects of the design, implementation and application of any of the Lisp dialects. We encourage everyone interested in Lisp to participate.

As well as presentations of the accepted technical papers and tutorials, the programme features the following highlights:

- Kent Pitman of HyperMeta Inc. will offer reflections on Lisp Past, Present and Future;

- Pascal Costanza will lead a tutorial session on Parallel Programming in Common Lisp;

- Matthias Felleisen of PLT will talk about languages for creating programming languages;

- there will be opportunities for attendees to give lightning talks and demos of late-breaking work.
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Posted by on April 14, 2010 in Lisp, Programlama

 

Shirts for Internet programmers from the Turkish company Hatemoğlu: HTML


This is my candidate for the geek shirt of the year. It is produced by Hatemoğlu, a famous Turkish company.

HTML shirt

HTML shirt

When I entered one of the shops in Istanbul and the salesman saw my ‘Rock Your Firefox‘ t-shirt he asked me if I was a computer programmer and then naturally offered me this HTML shirt ;-)

HTML shirt for programmers

HTML shirt for programmers

As you have already guessed I could not resist and bought 3 different designs (at a bargain price).

 
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Posted by on April 13, 2010 in komik

 

ssl for Apache 2 on linode


A short list of URLs that I found useful as I tried to set up an SSL enabled web site for my linode virtual private server:

- https://help.ubuntu.com/8.04/serverguide/C/certificates-and-security.html

- https://help.ubuntu.com/8.04/serverguide/C/httpd.html

- http://www.linode.com/wiki/index.php/Apache2_SSL_in_Ubuntu

- http://ubuntuforums.org/archive/index.php/t-4466.html

 
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Posted by on April 13, 2010 in Linux, sysadmin

 

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fail2ban: timezone problems


Just a short note for fail2ban users (and me) which is already stated at the end of FAQ:

“So, check that all your logs are synchronized: all logs files (auth.log, syslog,..) must use the same time reference (if your server is not very busy, there will probably be an important difference between the output of date command and the last event logged in syslog. You can force to generate a log in syslog using the logger command and check then with the output of date command)”


# date
Wed Nov 28 13:49:02 CET 2007
# tail -2 /var/log/auth.log
Nov 28 13:39:12 sudo: pam_unix(sudo:session): session opened for user root by user(uid=0)
Nov 28 13:39:12 sudo: pam_unix(sudo:session): session closed for user root

If time reference is not the same everywhere, then fail2ban won’t ban any IP!

That means if you somehow played with your timezone (e.g. ran dpkg-reconfigure tzdata command) and the time information from your auth.log and date does not match anymore then fail2ban is not going to block / ban the IP addresses that it should even though it matched them perfectly.

 
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Posted by on April 12, 2010 in Linux, security, sysadmin

 

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Multi-lingual sites with Drupal


I’ve been using Drupal for a project related to language learning / teaching so I had to discover the multi-language features of Drupal for building sites that can serve the same content in different languages.

Short notes for future reference:

Important and useful URLs:
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Posted by on April 9, 2010 in Linux, Programlama

 

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