Search Results for author: Yihan Zhang

Found 10 papers, 1 papers with code

On the Communication Complexity of Decentralized Bilevel Optimization

no code implementations19 Nov 2023 Yihan Zhang, My T. Thai, Jie Wu, Hongchang Gao

To the best of our knowledge, this is the first time achieving these theoretical results under the heterogeneous setting.

Bilevel Optimization

Spectral Estimators for Structured Generalized Linear Models via Approximate Message Passing

no code implementations28 Aug 2023 Yihan Zhang, Hong Chang Ji, Ramji Venkataramanan, Marco Mondelli

Our methodology is general, and opens the way to the precise characterization of spiked matrices and of the corresponding spectral methods in a variety of settings.

Can ChatGPT Pass An Introductory Level Functional Language Programming Course?

no code implementations29 Apr 2023 Chuqin Geng, Yihan Zhang, Brigitte Pientka, Xujie Si

The recent introduction of ChatGPT has drawn significant attention from both industry and academia due to its impressive capabilities in solving a diverse range of tasks, including language translation, text summarization, and computer programming.

Text Summarization

RAFT: Reward rAnked FineTuning for Generative Foundation Model Alignment

1 code implementation13 Apr 2023 Hanze Dong, Wei Xiong, Deepanshu Goyal, Yihan Zhang, Winnie Chow, Rui Pan, Shizhe Diao, Jipeng Zhang, Kashun Shum, Tong Zhang

Utilizing a reward model and a sufficient number of samples, our approach selects the high-quality samples, discarding those that exhibit undesired behavior, and subsequently enhancing the model by fine-tuning on these filtered samples.

Ethics

Precise Asymptotics for Spectral Methods in Mixed Generalized Linear Models

no code implementations21 Nov 2022 Yihan Zhang, Marco Mondelli, Ramji Venkataramanan

In a mixed generalized linear model, the objective is to learn multiple signals from unlabeled observations: each sample comes from exactly one signal, but it is not known which one.

Retrieval

Environment Sensing Considering the Occlusion Effect: A Multi-View Approach

no code implementations2 Jul 2022 Xin Tong, Zhaoyang Zhang, Yihan Zhang, Zhaohui Yang, Chongwen Huang, Kai-Kit Wong, Merouane Debbah

In this paper, we consider the problem of sensing the environment within a wireless cellular framework.

Mean Estimation in High-Dimensional Binary Markov Gaussian Mixture Models

no code implementations6 Jun 2022 Yihan Zhang, Nir Weinberger

In this model, an estimator observes $n$ samples of a $d$-dimensional parameter vector $\theta_{*}\in\mathbb{R}^{d}$, multiplied by a random sign $ S_i $ ($1\le i\le n$), and corrupted by isotropic standard Gaussian noise.

Vocal Bursts Intensity Prediction

Zero-Error Communication over Adversarial MACs

no code implementations29 Jan 2021 Yihan Zhang

In particular, the treatment of marginal confusability does not follow from the point-to-point results by Wang et al. Our achievability results follow from random coding with expurgation.

Information Theory Information Theory

MG-GCN: Fast and Effective Learning with Mix-grained Aggregators for Training Large Graph Convolutional Networks

no code implementations17 Nov 2020 Tao Huang, Yihan Zhang, Jiajing Wu, Junyuan Fang, Zibin Zheng

To tackle the dilemma between accuracy and efficiency, we propose to use aggregators with different granularities to gather neighborhood information in different layers.

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