Search Results for author: Xiangyu Yang

Found 6 papers, 1 papers with code

imec-ETRO-VUB at W-NUT 2020 Shared Task-3: A multilabel BERT-based system for predicting COVID-19 events

no code implementations EMNLP (WNUT) 2020 Xiangyu Yang, Giannis Bekoulis, Nikos Deligiannis

To mitigate the noisy nature of the Twitter stream, our system makes use of the COVID-Twitter-BERT (CT-BERT), which is a language model pre-trained on a large corpus of COVID-19 related Twitter messages.

Event Extraction Language Modelling

A Screening Strategy for Structured Optimization Involving Nonconvex $\ell_{q,p}$ Regularization

no code implementations2 Aug 2022 Tiange Li, Xiangyu Yang, Hao Wang

In this paper, we develop a simple yet effective screening rule strategy to improve the computational efficiency in solving structured optimization involving nonconvex $\ell_{q, p}$ regularization.

Computational Efficiency

Traffic Event Detection as a Slot Filling Problem

no code implementations13 Sep 2021 Xiangyu Yang, Giannis Bekoulis, Nikos Deligiannis

In particular, we experiment with several models to identify (i) whether a tweet is traffic-related or not, and (ii) in the case that the tweet is traffic-related to identify more fine-grained information regarding the event (e. g., the type of the event, where the event happened).

Event Detection slot-filling +4

An Iteratively Reweighted Method for Sparse Optimization on Nonconvex $\ell_{p}$ Ball

no code implementations7 Apr 2021 Hao Wang, Xiangyu Yang, Wei Jiang

Specifically, if the current iterate is in the interior of the feasible set, then the weighted $\ell_{1}$ ball is formed by linearizing the $\ell_{p}$ norm at the current iterate.

Towards An Efficient Approach for the Nonconvex $\ell_p$ Ball Projection: Algorithm and Analysis

3 code implementations5 Jan 2021 Xiangyu Yang, Jiashan Wang, Hao Wang

This paper primarily focuses on computing the Euclidean projection of a vector onto the $\ell_{p}$ ball in which $p\in(0, 1)$.

Sparse Optimization for Green Edge AI Inference

no code implementations24 Feb 2020 Xiangyu Yang, Sheng Hua, Yuanming Shi, Hao Wang, Jun Zhang, Khaled B. Letaief

By exploiting the inherent connections between the set of task selection and group sparsity structural transmit beamforming vector, we reformulate the optimization as a group sparse beamforming problem.

Combinatorial Optimization Edge-computing

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