Search Results for author: Lina Mezghani

Found 6 papers, 2 papers with code

Think Before You Act: Unified Policy for Interleaving Language Reasoning with Actions

no code implementations18 Apr 2023 Lina Mezghani, Piotr Bojanowski, Karteek Alahari, Sainbayar Sukhbaatar

The success of transformer models trained with a language modeling objective brings a promising opportunity to the reinforcement learning framework.

Language Modelling

Learning Goal-Conditioned Policies Offline with Self-Supervised Reward Shaping

1 code implementation5 Jan 2023 Lina Mezghani, Sainbayar Sukhbaatar, Piotr Bojanowski, Alessandro Lazaric, Karteek Alahari

Developing agents that can execute multiple skills by learning from pre-collected datasets is an important problem in robotics, where online interaction with the environment is extremely time-consuming.

Continuous Control Self-Supervised Learning

Walk the Random Walk: Learning to Discover and Reach Goals Without Supervision

no code implementations23 Jun 2022 Lina Mezghani, Sainbayar Sukhbaatar, Piotr Bojanowski, Karteek Alahari

Finally, we train a goal-conditioned policy network with goals sampled from the goal memory and reward it by the reachability network and the goal memory.

Continuous Control

Learning to Visually Navigate in Photorealistic Environments Without any Supervision

no code implementations10 Apr 2020 Lina Mezghani, Sainbayar Sukhbaatar, Arthur Szlam, Armand Joulin, Piotr Bojanowski

Learning to navigate in a realistic setting where an agent must rely solely on visual inputs is a challenging task, in part because the lack of position information makes it difficult to provide supervision during training.

Navigate Position

Understanding Image Quality and Trust in Peer-to-Peer Marketplaces

no code implementations26 Nov 2018 Xiao Ma, Lina Mezghani, Kimberly Wilber, Hui Hong, Robinson Piramuthu, Mor Naaman, Serge Belongie

In this work, we conducted a large-scale study on the quality of user-generated images in peer-to-peer marketplaces.

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