Search Results for author: Zhiyang Li

Found 5 papers, 1 papers with code

LEGO-GraphRAG: Modularizing Graph-based Retrieval-Augmented Generation for Design Space Exploration

no code implementations6 Nov 2024 Yukun Cao, Zengyi Gao, Zhiyang Li, Xike Xie, S Kevin Zhou

GraphRAG addresses significant challenges in Retrieval-Augmented Generation (RAG) by leveraging graphs with embedded knowledge to enhance the reasoning capabilities of Large Language Models (LLMs).

RAG Retrieval

Discovering Galaxy Features via Dataset Distillation

1 code implementation29 Nov 2023 Haowen Guan, Xuan Zhao, Zishi Wang, Zhiyang Li, Julia Kempe

In many applications, Neural Nets (NNs) have classification performance on par or even exceeding human capacity.

Dataset Distillation

Improvement of Normal Estimation for PointClouds via Simplifying Surface Fitting

no code implementations21 Apr 2021 Jun Zhou, Wei Jin, Mingjie Wang, Xiuping Liu, Zhiyang Li, Zhaobin Liu

Firstly, a dynamic top-k selection strategy is introduced to better focus on the most critical points of a given patch, and the points selected by our learning method tend to fit a surface by way of a simple tangent plane, which can dramatically improve the normal estimation results of patches with sharp corners or complex patterns.

Fast and Accurate Normal Estimation for Point Cloud via Patch Stitching

no code implementations30 Mar 2021 Jun Zhou, Wei Jin, Mingjie Wang, Xiuping Liu, Zhiyang Li, Zhaobin Liu

At the stitching stage, we use the learned weights of multi-branch planar experts and distance weights between points to select the best normal from the overlapping parts.

Retrieval

Reflections in the Sky: Joint Trajectory and Passive Beamforming Design for Secure UAV Networks with Reconfigurable Intelligent Surface

no code implementations21 May 2020 Hui Long, Ming Chen, Zhaohui Yang, Bao Wang, Zhiyang Li, Xu Yun, Mohammad Shikh-Bahaei

This paper investigates the problem of secure energy efficiency maximization for a reconfigurable intelligent surface (RIS) assisted uplink wireless communication system, where an unmanned aerial vehicle (UAV) equipped with an RIS works as a mobile relay between the base station (BS) and a group of users.

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