I am an associate professor of Computer Engineering at Koç University in Istanbul working at the Artificial Intelligence Laboratory. Previously I was at the MIT AI Lab and later co-founded Inquira, Inc. My research is in natural language processing and machine learning. For prospective students here are some research topics, papers, classes, blog posts and past students.
Koç Üniversitesi Bilgisayar Mühendisliği Bölümü'nde öğretim üyesiyim ve Yapay Zeka Laboratuarı'nda çalışıyorum. Bundan önce MIT Yapay Zeka Laboratuarı'nda çalıştım ve Inquira, Inc. şirketini kurdum. Araştırma konularım doğal dil işleme ve yapay öğrenmedir. İlgilenen öğrenciler için araştırma konuları, makaleler, verdiğim dersler, Türkçe yazılarım, ve mezunlarımız.

May 17, 2017

Congratulations to the Koç parsing team

Our neural net based dependency parser was number 7 overall out of 33 teams participating in the CoNLL 2017 Shared Task "Multilingual Parsing from Raw Text to Universal Dependencies" in which participating teams had to parse 68 corpora in 50 languages. I would like to thank Ömer Kırnap and Berkay Furkan Önder for their contributions and all-nighters.
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April 28, 2017

The third deep learning revolution

The first revolution took place 1958-1969.
  • We figured out how to train perceptrons.
  • We proved the perceptron convergence theorem.
  • Interest waned after a book (Perceptrons) written by mathematicians.
The second revolution took place 1986-1995.
  • We figured out how to train multi-layer perceptrons.
  • We proved the universal approximation theorem.
  • Interest waned after a book (SLT) written by mathematicians.
The third revolution started in 2012.
  • We figured out how to train deep nets.
  • A mathematician will write a book around 2022.
  • The fourth revolution will not start until 2036 :)

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February 22, 2017

Overfitting, underfitting, regularization, dropout

Here is an IJulia notebook demonstrating overfitting, underfitting, regularization and dropout in Knet for my machine learning class.
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December 19, 2016

Julia ve Knet ile Derin Öğrenmeye Giriş

21 Aralık 2016 Çarşamba 19:30'da Data İstanbul'da "Julia ve Knet ile Derin Öğrenmeye Giriş" sunumu yapacağım.

Bir önceki sunum: ODTÜ Yapay Öğrenme ve Bilgi İşlemede Yeni Teknikler Yaz Okulu, 6-9 Eylül, 2016, ODTÜ, Ankara. (URL, Sunum,Video)


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