(taken from here) 

Computing in the 21st Century Conference, jointly hosted by National Natural ScienceFoundation Commission, Microsoft Research Asia (MSRA) and Peking University will be held on November 4th, 2008. Thousands of professors and students from colleges all around Beijing will gather in Peking University’s Centennial Hall for this grand event. Masters in computer research throughout the country and from around the world will be given the opportunity to meet face to face with Chinese students and scholars, delivering keynote speeches and sharing their achievements in computer science research. On November 7th, the conference will then be held in Singapore, expanding the influence of world’s top research results to the Asia-Pacific region.

Under the theme of “New Horizon of Computing”, Computing in the 21st Century Conference will review the history of computer development, and look ahead to the new world of future computing. The speakers include Turing Award (which is recognized as the “Nobel Prize of computing”) recipients Dr. Raj Reddy, Dr. Butler Lampson, Dr. Tony Hoare, Dr. Rick Rashid, Senior Vice President of Microsoft Corporation, Dr. Harry Shum, Corporate Vice President of Microsoft Corporation and Dr. Hsiao-Wuen Hon, Managing Director of Microsoft Research Asia. We hope the conference will inspire young students and scholars with new angles, arouse their interest in computer science, and further enhance the development of related research fields in China and Asia Pacific.

(more…)

For some reasons, my topic for URECA was changed. It is now “An approach of evolutionary and local search for solving job shop optimization”. A co-supervisor also involved now, he is Dr. Ho Nhu Binh from SIMTech. So, mainly, now I’m dealing with memetic algorithm (evolutionary algorithm + local search). In a way, it’s a totally new thing for me. Somehow it changes “my belief”, from the one who usually dealing with something can be proven mathematically into something which can not be proven mathematically. So, it’s like a magic (from the amazing natural world behaviour) which just do thing better in average. I’m open for discussion with everyone who also interested in this field.

Here is a photo taken from “meet and greet” TOKI 2008. It was in Sakae Sushi at Changi Airport, just after TOKI 2008 grabbed 1 gold and 3 bronzes from IOI on Egypt. There were 4 students (Irvan, Adhit, Risan, Gogo), 7 coaches (me, Prima, Bram, Felix, Mr.Adi, Mr.Julio, Mr.Suryana). It was a nice experience, although I have to travel for almost 3,5 hours (round-trip) to go there from my campus.

(from left to right : Brian Marshal, Mr. Adi Mulyanto, Mr. Julio Adi S, Risan, Prima Chairunnanda, Mr. Suryana Setiawan) 

(from left to right : Bramandia Ramadhana, Listiarso Wastuargo, Felix Halim, Irvan Jahja, Reinardus Surya P) 

Finally, I’ve decided my topic for URECA. It is “Bee Colony Optimization : Travelling Salesman and Jobshop Scheduling” under Asst Prof Yoke Hean Low, Malcolm.

Mainly, I will studying some meta-heuristics algorithm for some operational-research problems. Specifically, I will do some investigation on bee colony optimization (which just popularized this year) for solving some benchmark problem in operational-research (i.e. Travelling Salesman and Jobshop Scheduling, as the title state).

I hope I can get some extra-ordinary experiences, knowledges, and adventures doing this one-year-project.

related news :

http://www.toki.or.id/newsdetail.php?newsid=222 

http://fauzanjs.multiply.com/journal/item/9/Kado_Ulang_Tahun_RI_ke_63 

(English version will be overtaken)

Sekedar refresh sepak terjang TOKI selama 14 tahun terakhir di International Olympiad in Informatics (IOI)

1995 Eindhoven, Belanda : 1 PERAK (one man only, first medal)
1996 Veszprem, Hongaria : -
1997 Cape Town, Afrika Selatan : 1 EMAS + 1 PERUNGGU (first gold)
1998 Setubal, Portugal : 2 PERAK + 1 PERUNGGU
1999 Antalya, Turki : -
2000 Beijing, China : 2 PERUNGGU
2001 Tempere, Finland : 1 PERUNGGU
2002 Yong-In, Korea : 1 PERAK + 1 PERUNGGU
2003 Kenosha, Wisconsin, USA : - (no visa)
2004 Athens, Greece : 2 PERAK + 1 PERUNGGU
2005 Nowy Sacz, Poland : 2 PERAK + 1 PERUNGGU
2006 Merida, Mexico : 1 PERAK
2007 Zagreb, Croatia : 4 PERUNGGU (first full medals)
2008 Cairo, Egypt : 1 EMAS + 3 PERUNGGU (second full medals + secondgold)

Kalau dilihat-lihat, berarti perolehan tahun ini adalah prestasiterbaik TOKI. Semoga ke depannya makin baik lagi!

Sekali lagi selamat kepada empat besar dan para pembina TOKI 2008!

(English version will be overtaken)
CONGRATZ! SELAMAT!

(Hadiah untuk Kemerdekaan Indonesia yang ke-63)

Setelah deg-degan menunggu hasil berjam-jam bersama beberapa alumni lainnya, berikut hasil (99% resmi) mengenai perolehan medali TOKI di IOI 2008:

Irvan Jahja - 361 - Medali Emas
Reinardus Surya Pradhitya - 213 - Medali Perunggu
Risan - 184 - Medali Perunggu
Listiarso Wastuargo - 153 - Medali Perunggu

Batas nilai terendah untuk medali perunggu : 127
Batas nilai terendah untuk medali perak : 230
Batas nilai terendah untuk medali emas : 360

(hasil 99% resmi untuk semua peserta IOI 2008 dapat dilihat di http://snarknews.info/, bagi yang kesulitan membacanya, silakan gunakan translate.google.com untuk russia to english)

Hal yang cukup mengejutkan, sudah lama batas nilai terendah untuk medali IOI tidak serendah ini, yang artinya soal tahun ini memang lebih sulit dibanding beberapa tahun terakhir.

Tentunya, TOKI 2008 sudah menunjukkan performa terbaiknya dengan memberikan kemajuan yang sangat siginifikan dibanding 4 medali perunggu pada IOI 2007 dan 1 medali perak pada IOI 2006, terutama Irvan Jahja yang memecahkan rekor 10 tahun TOKI tanpa emas (FYI, terakhir kali TOKI mendapat medali emas adalah a.n. Andy Kurnia pada IOI 1997). Walau mepet sekali dengan batas bawah medali emas, perolehan ini sangat menggembirakan karena bahkan lebih tinggi dari perolehan beberapa peserta unggulan dari negara pendominasi seperti Cina, Polandia, USA, dll.

Sekali lagi selamat. Kepada Reinardus dan Risan, masih ada kesempatan tahun depan untuk menyusul Irvan memberikan emas lainnya untuk TOKI.

Viva TOKI!

Here is, TOKI 2008 results (out of 300):

Irvan Jahja = 235
Reinardus Surya Pradhitya = 81
Risan = 37
Listiarso Wastuargo = 27

Until this post published, I haven’t read any problems from day 1, so I don’t know whether it is easy, medium, or difficult on average.

Here is, TOKI 2008 results (out of 300):

Irvan Jahja 100 + 26 + 0 = 126
Reinardus Surya Pradhitya 100 + 22 + 10 = 132
Risan 100 + 40 + 7 = 147
Listiarso Wastuargo 100 + 26 + 0 = 126

For myself, the result is quite surprising, however it is good enough (as Ilham said in his blog). These points show that they weren’t feeling too nervous (at least not as bad as last year’s day 1, hehe… how stupid i was). Well, from my experience, I think I can predict that they will all get medals (at least).