Date: August 8, 2008 5:57:20 PM EDT (CA)
Subject: Predoc oral de Dumitru Erhan
Bonjour.
Vous êtes tous cordialement invités au predoc oral
de Dumitru Erhan (dont le directeur de these est Yoshua Bengio)
au DIRO, le jeudi 14 aout a 15:00 en salle 3195
(Pavillon Aisenstadt).
Voici le titre de sa presentation:
"Heuristics for Optimizing Deep Architectures
Deep architectures are viewed by many as an efficient new way of
tackling difficult Artificial Intelligence problems, such as vision or
natural language processing. A flurry of models and algorithms to
efficiently train them have sprung over the last several years. The key
ingredient seems to be greedy, layer-wise initialization of such
models. I will review the state-of-the-art and identify some of the
open issues with deep architectures. I will then present our work that
tackled some of these issues and propose a series of theoretical
extensions and experimental work that suggest new directions for
research on deep architectures --- such as learning multimodal
representations of visual, textual and musical data as well as
collective training of networks. I argue that tackling these problem
will give us new insights into the inner workings of these models and
could help the optimization process of deep architectures. "
Max Mignotte