Search Results for author: Xuan He

Found 18 papers, 7 papers with code

CovNet: Covariance Information-Assisted CSI Feedback for FDD Massive MIMO Systems

no code implementations17 Dec 2024 Jialin Zhuang, Xuan He, Yafei Wang, Jiale Liu, Wenjin Wang

In this paper, we propose a novel covariance information-assisted channel state information (CSI) feedback scheme for frequency-division duplex (FDD) massive multi-input multi-output (MIMO) systems.

Is Locational Marginal Price All You Need for Locational Marginal Emission?

no code implementations18 Nov 2024 Xuan He, Danny H. K. Tsang, Yize Chen

Growing concerns over climate change call for improved techniques for estimating and quantifying the greenhouse gas emissions associated with electricity generation and transmission.

Guiding Through Complexity: What Makes Good Supervision for Hard Reasoning Tasks?

1 code implementation27 Oct 2024 Xuan He, Da Yin, Nanyun Peng

Specifically, training on hard task supervision with the same outcome error rates but disparate step-wise error rates can lead to a 30\% accuracy gap on MATH benchmark.

Data Augmentation Math

MEGA-Bench: Scaling Multimodal Evaluation to over 500 Real-World Tasks

1 code implementation14 Oct 2024 Jiacheng Chen, Tianhao Liang, Sherman Siu, Zhengqing Wang, Kai Wang, YuBo Wang, Yuansheng Ni, Wang Zhu, Ziyan Jiang, Bohan Lyu, Dongfu Jiang, Xuan He, YuAn Liu, Hexiang Hu, Xiang Yue, Wenhu Chen

We evaluate a wide variety of frontier vision-language models on MEGA-Bench to understand their capabilities across these dimensions.

Efficient Unit Commitment Constraint Screening under Uncertainty

no code implementations9 Aug 2024 Xuan He, Honglin Wen, Yufan Zhang, Yize Chen, Danny H. K. Tsang

We verify the proposed method's performance on a variety of UC setups and uncertainty situations.

Load Forecasting

MMLU-Pro: A More Robust and Challenging Multi-Task Language Understanding Benchmark

1 code implementation3 Jun 2024 YuBo Wang, Xueguang Ma, Ge Zhang, Yuansheng Ni, Abhranil Chandra, Shiguang Guo, Weiming Ren, Aaran Arulraj, Xuan He, Ziyan Jiang, Tianle Li, Max Ku, Kai Wang, Alex Zhuang, Rongqi Fan, Xiang Yue, Wenhu Chen

In the age of large-scale language models, benchmarks like the Massive Multitask Language Understanding (MMLU) have been pivotal in pushing the boundaries of what AI can achieve in language comprehension and reasoning across diverse domains.

MMLU Multi-task Language Understanding

Expert-Token Resonance: Redefining MoE Routing through Affinity-Driven Active Selection

no code implementations24 May 2024 Jing Li, Zhijie Sun, Dachao Lin, Xuan He, Yi Lin, Binfan Zheng, Li Zeng, Rongqian Zhao, Xin Chen

(3) Theoretical derivation and experimental evidence of reduced expert capacity bounds under dynamic token distribution evolution.

Computational Efficiency

MANTIS: Interleaved Multi-Image Instruction Tuning

1 code implementation2 May 2024 Dongfu Jiang, Xuan He, Huaye Zeng, Cong Wei, Max Ku, Qian Liu, Wenhu Chen

We further evaluate Mantis on single-image benchmarks and demonstrate that Mantis also maintains a strong single-image performance on par with CogVLM and Emu2.

Real-time Transformer-based Open-Vocabulary Detection with Efficient Fusion Head

2 code implementations11 Mar 2024 Tiancheng Zhao, Peng Liu, Xuan He, Lu Zhang, Kyusong Lee

End-to-end transformer-based detectors (DETRs) have shown exceptional performance in both closed-set and open-vocabulary object detection (OVD) tasks through the integration of language modalities.

Open Vocabulary Object Detection Real-Time Object Detection +1

EchoTrack: Auditory Referring Multi-Object Tracking for Autonomous Driving

2 code implementations28 Feb 2024 Jiacheng Lin, Jiajun Chen, Kunyu Peng, Xuan He, Zhiyong Li, Rainer Stiefelhagen, Kailun Yang

This paper introduces the task of Auditory Referring Multi-Object Tracking (AR-MOT), which dynamically tracks specific objects in a video sequence based on audio expressions and appears as a challenging problem in autonomous driving.

Autonomous Driving Object +1

LocMoE: A Low-Overhead MoE for Large Language Model Training

no code implementations25 Jan 2024 Jing Li, Zhijie Sun, Xuan He, Li Zeng, Yi Lin, Entong Li, Binfan Zheng, Rongqian Zhao, Xin Chen

However, the performance of MoE is limited by load imbalance and high latency of All-to-All communication, along with relatively redundant computation owing to large expert capacity.

Language Modeling Language Modelling +1

Long-Term Carbon-Efficient Planning for Geographically Shiftable Resources: A Monte Carlo Tree Search Approach

no code implementations11 Dec 2023 Xuan He, Danny H. K. Tsang, Yize Chen

In this paper, we propose a novel planning and operation model minimizing the system-level carbon emissions via sitting and operating geographically shiftable resources.

Beam-Delay Domain Channel Estimation for mmWave XL-MIMO Systems

no code implementations10 Dec 2023 Hongwei Hou, Xuan He, Tianhao Fang, Xinping Yi, Wenjin Wang, Shi Jin

This paper investigates the uplink channel estimation of the millimeter-wave (mmWave) extremely large-scale multiple-input-multiple-output (XL-MIMO) communication system in the beam-delay domain, taking into account the near-field and beam-squint effects due to the transmission bandwidth and array aperture growth.

Fast Constraint Screening for Multi-Interval Unit Commitment

no code implementations12 Sep 2023 Xuan He, Jiayu Tian, Yufan Zhang, Honglin Wen, Yize Chen

Extensive simulations on both specific load samples and load regions validate the proposed technique can screen out more than 80% constraints while preserving the feasibility of multi-interval UC problem.

S$^3$-MonoDETR: Supervised Shape&Scale-perceptive Deformable Transformer for Monocular 3D Object Detection

no code implementations2 Sep 2023 Xuan He, Jin Yuan, Kailun Yang, Zhenchao Zeng, Zhiyong Li

These methods typically use visual and depth representations to generate query points on objects, whose quality plays a decisive role in the detection accuracy.

Monocular 3D Object Detection object-detection

SSD-MonoDETR: Supervised Scale-aware Deformable Transformer for Monocular 3D Object Detection

1 code implementation12 May 2023 Xuan He, Fan Yang, Kailun Yang, Jiacheng Lin, Haolong Fu, Meng Wang, Jin Yuan, Zhiyong Li

To tackle this problem, this paper proposes a novel "Supervised Scale-aware Deformable Attention" (SSDA) for monocular 3D object detection.

Monocular 3D Object Detection Object +1

Enabling Fast Unit Commitment Constraint Screening via Learning Cost Model

no code implementations1 Dec 2022 Xuan He, Honglin Wen, Yufan Zhang, Yize Chen

Unit commitment (UC) are essential tools to transmission system operators for finding the most economical and feasible generation schedules and dispatch signals.

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