Search Results for author: Jinyan Su

Found 9 papers, 4 papers with code

Leveraging Large Language Models for Structure Learning in Prompted Weak Supervision

1 code implementation2 Feb 2024 Jinyan Su, Peilin Yu, Jieyu Zhang, Stephen H. Bach

We propose a Structure Refining Module, a simple yet effective first approach based on the similarities of the prompts by taking advantage of the intrinsic structure in the embedding space.

Adapting Fake News Detection to the Era of Large Language Models

1 code implementation2 Nov 2023 Jinyan Su, Claire Cardie, Preslav Nakov

With the proliferation of both human-written and machine-generated real and fake news, robustly and effectively discerning the veracity of news articles has become an intricate challenge.

Fake News Detection

Fake News Detectors are Biased against Texts Generated by Large Language Models

no code implementations15 Sep 2023 Jinyan Su, Terry Yue Zhuo, Jonibek Mansurov, Di Wang, Preslav Nakov

The spread of fake news has emerged as a critical challenge, undermining trust and posing threats to society.

Misinformation

DetectLLM: Leveraging Log Rank Information for Zero-Shot Detection of Machine-Generated Text

1 code implementation23 May 2023 Jinyan Su, Terry Yue Zhuo, Di Wang, Preslav Nakov

One is called DetectLLM-LRR, which is fast and efficient, and the other is called DetectLLM-NPR, which is more accurate, but slower due to the need for perturbations.

Misinformation

Differentially Private Stochastic Convex Optimization in (Non)-Euclidean Space Revisited

no code implementations31 Mar 2023 Jinyan Su, Changhong Zhao, Di Wang

In this paper, we revisit the problem of Differentially Private Stochastic Convex Optimization (DP-SCO) in Euclidean and general $\ell_p^d$ spaces.

On PAC Learning Halfspaces in Non-interactive Local Privacy Model with Public Unlabeled Data

no code implementations17 Sep 2022 Jinyan Su, Jinhui Xu, Di Wang

In this paper, we study the problem of PAC learning halfspaces in the non-interactive local differential privacy model (NLDP).

PAC learning Self-Supervised Learning

Faster Rates of Private Stochastic Convex Optimization

no code implementations31 Jul 2021 Jinyan Su, Lijie Hu, Di Wang

Specifically, we first show that under some mild assumptions on the loss functions, there is an algorithm whose output could achieve an upper bound of $\tilde{O}((\frac{1}{\sqrt{n}}+\frac{\sqrt{d\log \frac{1}{\delta}}}{n\epsilon})^\frac{\theta}{\theta-1})$ for $(\epsilon, \delta)$-DP when $\theta\geq 2$, here $n$ is the sample size and $d$ is the dimension of the space.

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