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N Siddharth

6 accepted papers

2020

Multitask Soft Option Learning

UAI 2020poster

We present Multitask Soft Option Learning (MSOL), a hierarchical multitask framework based on Planning as Inference. MSOL extends the concept of options, using separate variational posteriors for each task, regularized by a shared prior. This “soft” version of options avoids several instabilities du…

2019

Disentangling Disentanglement in Variational Autoencoders

ICML 2019oral

We develop a generalisation of disentanglement in variational autoencoders (VAEs)—decomposition of the latent representation—characterising it as the fulfilment of two factors: a) the latent encodings of the data having an appropriate level of overlap, and b) the aggregate encoding of the data confo…

2019

Revisiting Reweighted Wake-Sleep for Models with Stochastic Control Flow

UAI 2019poster

Stochastic control-flow models (SCFMs) are a class of generative models that involve branching on choices from discrete random variables. Amortized gradient-based learning of SCFMs is challenging as most approaches targeting discrete variables rely on their continuous relaxations—which can be intrac…

Cited by 54SourcePDFScholar
2019

Structured Disentangled Representations

AISTATS 2019poster

Deep latent-variable models learn representations of high-dimensional data in an unsupervised manner. A number of recent efforts have focused on learning representations that disentangle statistically independent axes of variation by introducing modifications to the standard objective function. Thes…

2018

FlipDial: A Generative Model for Two-Way Visual Dialogue

CVPR 2018poster

We present FlipDial, a generative model for Visual Dialogue that simultaneously plays the role of both participants in a visually-grounded dialogue. Given context in the form of an image and an associated caption summarising the contents of the image, FlipDial learns both to answer questions and put…

Cited by 48SourcePDFScholar