Search Results for author: Weicheng Ma

Found 21 papers, 4 papers with code

Dartmouth at SemEval-2022 Task 6: Detection of Sarcasm

no code implementations SemEval (NAACL) 2022 Rishik Lad, Weicheng Ma, Soroush Vosoughi

This paper introduces the result of Team Dartmouth’s experiments on each of the five subtasks for the detection of sarcasm in English and Arabic tweets.

Data Augmentation Sarcasm Detection

Joint Latent Topic Discovery and Expectation Modeling for Financial Markets

no code implementations1 Jun 2023 Lili Wang, Chenghan Huang, Chongyang Gao, Weicheng Ma, Soroush Vosoughi

In the pursuit of accurate and scalable quantitative methods for financial market analysis, the focus has shifted from individual stock models to those capturing interrelations between companies and their stocks.

Graph-Level Embedding for Time-Evolving Graphs

no code implementations1 Jun 2023 Lili Wang, Chenghan Huang, Weicheng Ma, Xinyuan Cao, Soroush Vosoughi

We evaluate our proposed model on five publicly available datasets for the task of temporal graph similarity ranking, and our model outperforms baseline methods.

Anomaly Detection Graph Representation Learning +4

EnCBP: A New Benchmark Dataset for Finer-Grained Cultural Background Prediction in English

no code implementations Findings (ACL) 2022 Weicheng Ma, Samiha Datta, Lili Wang, Soroush Vosoughi

While cultural backgrounds have been shown to affect linguistic expressions, existing natural language processing (NLP) research on culture modeling is overly coarse-grained and does not examine cultural differences among speakers of the same language.

Cultural Vocal Bursts Intensity Prediction Language Modelling +5

Embedding Node Structural Role Identity Using Stress Majorization

no code implementations14 Sep 2021 Lili Wang, Chenghan Huang, Weicheng Ma, Ying Lu, Soroush Vosoughi

In this paper, we present a novel and flexible framework using stress majorization, to transform the high-dimensional role identities in networks directly (without approximation or indirect modeling) to a low-dimensional embedding space.

Node Classification

GradTS: A Gradient-Based Automatic Auxiliary Task Selection Method Based on Transformer Networks

no code implementations EMNLP 2021 Weicheng Ma, Renze Lou, Kai Zhang, Lili Wang, Soroush Vosoughi

Compared to AUTOSEM, a strong baseline method, GradTS improves the performance of MT-DNN with a bert-base-cased backend model, from 0. 33% to 17. 93% on 8 natural language understanding (NLU) tasks in the GLUE benchmarks.

Multi-Task Learning Natural Language Understanding

Contributions of Transformer Attention Heads in Multi- and Cross-lingual Tasks

no code implementations ACL 2021 Weicheng Ma, Kai Zhang, Renze Lou, Lili Wang, Soroush Vosoughi

Through extensive experiments, we show that (1) pruning a number of attention heads in a multi-lingual Transformer-based model has, in general, positive effects on its performance in cross-lingual and multi-lingual tasks and (2) the attention heads to be pruned can be ranked using gradients and identified with a few trial experiments.

XLM-R

BigGreen at SemEval-2021 Task 1: Lexical Complexity Prediction with Assembly Models

1 code implementation SEMEVAL 2021 Aadil Islam, Weicheng Ma, Soroush Vosoughi

This paper describes a system submitted by team BigGreen to LCP 2021 for predicting the lexical complexity of English words in a given context.

Feature Engineering Lexical Complexity Prediction

Improvements and Extensions on Metaphor Detection

no code implementations ACL (unimplicit) 2021 Weicheng Ma, Ruibo Liu, Lili Wang, Soroush Vosoughi

Finally, we clean up the improper or outdated annotations in one of the MD benchmark datasets and re-benchmark it with our Transformer-based model.

Natural Language Understanding

Towards Improved Model Design for Authorship Identification: A Survey on Writing Style Understanding

no code implementations30 Sep 2020 Weicheng Ma, Ruibo Liu, Li-Li Wang, Soroush Vosoughi

While other tasks based on linguistic style understanding benefit from deep learning methods, these methods have not behaved as well as traditional machine learning methods in many authorship-based tasks.

BIG-bench Machine Learning Natural Language Understanding

Emoji Prediction: Extensions and Benchmarking

1 code implementation14 Jul 2020 Weicheng Ma, Ruibo Liu, Lili Wang, Soroush Vosoughi

In this paper, we extend the existing setting of the emoji prediction task to include a richer set of emojis and to allow multi-label classification on the task.

Benchmarking Multi-Label Classification

ChiMed: A Chinese Medical Corpus for Question Answering

1 code implementation WS 2019 Yuanhe Tian, Weicheng Ma, Fei Xia, Yan Song

Question answering (QA) is a challenging task in natural language processing (NLP), especially when it is applied to specific domains.

Question Answering

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