Seminars & Events for PACM IDeAS

September 19, 2017
2:30pm - 3:30pm
Towards de-mystification of deep learning: function space analysis of the representation layers

PLEASE NOTE DIFFERENT DAY (TUESDAY).  We propose a function space approach to Representation Learning [1] and the analysis of the representation layers in deep learning architectures. We show how to compute a `weak-type'  Besov smoothness index that quantifies the geometry of the clustering in the feature space. This approach was already applied successfully to improve the performance of machine learning algorithms such as the Random Forest [2] and tree-based Gradient Boosting [3]. Our experiments demonstrate that in well-known and well-performing trained  networks, the Besov smoothness of the training set, measured in the corresponding hidden layer feature map representation, increases from layer to layer which relates to the `unfolding' of the clustering in the feature space.

Speaker: Shai Dekel, Tel Aviv University
Location:
Fine Hall 224
September 27, 2017
2:30pm - 3:30pm
TBA - Dmitry Batenkov
Speaker: Dmitry Batenkov, MIT
Location:
Fine Hall 224
October 11, 2017
2:30pm - 3:30pm
TBA - Veit Elser
Speaker: Veit Elser, Cornell University
Location:
Fine Hall 224
October 18, 2017
2:30pm - 3:30pm
Iron Age Hebrew Epigraphy in the Silicon Age - An Algorithmic Approach To Study Paleo-Hebrew Inscriptions

Handwriting comparison and identification, e.g. in the setting of forensics, has been widely addressed over the years. However, even in the case of modern documents, the proposed computerized solutions are quite unsatisfactory. For historical documents, such problems are worsened, due to the inscriptions’ preservation conditions. In the following lecture, we will present an attempt at addressing such a problem in the setting of First Temple Period inscriptions, stemming from the isolated military outpost of Arad (ca. 600 BCE).

Speaker: Barak Sober, Tel Aviv University
Location:
Fine Hall 224
October 25, 2017
2:30pm - 3:30pm
TBA - Nicolas Garcia Trillos
Speaker: Nicolas Garcia Trillos, Brown University
Location:
Fine Hall 224
November 8, 2017
2:30pm - 3:30pm
TBA- Nadav Dym
Speaker: Nadav Dym, Weizmann Institute
Location:
Fine Hall 224
November 15, 2017
2:30pm - 3:30pm
TBA - Gal Mishne
Speaker: Gal Mishne, Yale University
Location:
Fine Hall 224
November 29, 2017
2:30pm - 3:30pm
TBA-Gal Mishne
Speaker: Gal Mishne, Yale University
Location:
Fine Hall 224
December 6, 2017
2:30pm - 3:30pm
TBA-Ti-Yen Lan
Speaker: Ti-Yen Lan, Cornell University
Location:
Fine Hall 224