Search Results for author: Shimin Di

Found 8 papers, 5 papers with code

Single-Cell RNA-seq Synthesis with Latent Diffusion Model

no code implementations21 Dec 2023 YiXuan Wang, Shuangyin Li, Shimin Di, Lei Chen

The single-cell RNA sequencing (scRNA-seq) technology enables researchers to study complex biological systems and diseases with high resolution.

Learning from Emergence: A Study on Proactively Inhibiting the Monosemantic Neurons of Artificial Neural Networks

no code implementations17 Dec 2023 Jiachuan Wang, Shimin Di, Lei Chen, Charles Wang Wai Ng

We validate our conjecture that monosemanticity brings about performance change at different model scales on a variety of neural networks and benchmark datasets in different areas, including language, image, and physics simulation tasks.

Search to Fine-tune Pre-trained Graph Neural Networks for Graph-level Tasks

1 code implementation14 Aug 2023 Zhili Wang, Shimin Di, Lei Chen, Xiaofang Zhou

Given a pre-trained GNN, we propose to search to fine-tune pre-trained graph neural networks for graph-level tasks (S2PGNN), which adaptively design a suitable fine-tuning framework for the given labeled data on the downstream task.

Noise2Info: Noisy Image to Information of Noise for Self-Supervised Image Denoising

1 code implementation ICCV 2023 Jiachuan Wang, Shimin Di, Lei Chen, Charles Wang Wai Ng

However, such a method is highly sensitive to the standard deviation \sigma_n of noises injected to clean images, where \sigma_n is inaccessible without knowing clean images.

Image Denoising

AutoGEL: An Automated Graph Neural Network with Explicit Link Information

1 code implementation NeurIPS 2021 Zhili Wang, Shimin Di, Lei Chen

However, existing AutoGNN works mainly adopt an implicit way to model and leverage the link information in the graphs, which is not well regularized to the link prediction task on graphs, and limits the performance of AutoGNN for other graph tasks.

Graph Classification Link Prediction +1

Message Function Search for Hyper-relational Knowledge Graph

no code implementations29 Sep 2021 Shimin Di, Lei Chen

In this paper, we first unify a search space of message functions that enables both structures and operators to be searchable.

Efficient Relation-aware Scoring Function Search for Knowledge Graph Embedding

3 code implementations22 Apr 2021 Shimin Di, Quanming Yao, Yongqi Zhang, Lei Chen

The scoring function, which measures the plausibility of triplets in knowledge graphs (KGs), is the key to ensure the excellent performance of KG embedding, and its design is also an important problem in the literature.

AutoML Knowledge Graph Embedding +2

Searching to Sparsify Tensor Decomposition for N-ary Relational Data

1 code implementation21 Apr 2021 Shimin Di, Quanming Yao, Lei Chen

Recently, tensor decomposition methods have been introduced into N-ary relational data and become state-of-the-art on embedding learning.

Neural Architecture Search Tensor Decomposition

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