Search Results for author: Sungyoon Kim

Found 3 papers, 2 papers with code

Stitching Sub-Trajectories with Conditional Diffusion Model for Goal-Conditioned Offline RL

1 code implementation11 Feb 2024 Sungyoon Kim, Yunseon Choi, Daiki E. Matsunaga, Kee-Eung Kim

In this paper, we propose SSD (Sub-trajectory Stitching with Diffusion), a model-based offline GCRL method that leverages the conditional diffusion model to address these limitations.

Offline RL

Convex Relaxations of ReLU Neural Networks Approximate Global Optima in Polynomial Time

no code implementations6 Feb 2024 Sungyoon Kim, Mert Pilanci

In this paper, we study the optimality gap between two-layer ReLU networks regularized with weight decay and their convex relaxations.

Isotropic Representation Can Improve Dense Retrieval

1 code implementation1 Sep 2022 Euna Jung, Jungwon Park, Jaekeol Choi, Sungyoon Kim, Wonjong Rhee

In particular, many of the high-performing dense retrieval models evaluate representations of query and document using BERT, and subsequently apply a cosine-similarity based scoring to determine the relevance.

Re-Ranking Retrieval

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