Search Results for author: Xiaochen Wang

Found 14 papers, 4 papers with code

Sentence-Level Resampling for Named Entity Recognition

1 code implementation NAACL 2022 Xiaochen Wang, Yue Wang

As a fundamental task in natural language processing, named entity recognition (NER) aims to locate and classify named entities in unstructured text.

Data Augmentation named-entity-recognition +3

PeriodicLoRA: Breaking the Low-Rank Bottleneck in LoRA Optimization

no code implementations25 Feb 2024 Xiangdi Meng, Damai Dai, Weiyao Luo, Zhe Yang, Shaoxiang Wu, Xiaochen Wang, Peiyi Wang, Qingxiu Dong, Liang Chen, Zhifang Sui

Although LoRA fine-tuning is effective, there is still a performance gap compared to full fine-tuning, since its weight update is limited to low-rank matrices.

CoRelation: Boosting Automatic ICD Coding Through Contextualized Code Relation Learning

no code implementations24 Feb 2024 Junyu Luo, Xiaochen Wang, Jiaqi Wang, Aofei Chang, Yaqing Wang, Fenglong Ma

Automatic International Classification of Diseases (ICD) coding plays a crucial role in the extraction of relevant information from clinical notes for proper recording and billing.

Relation

Recent Advances in Predictive Modeling with Electronic Health Records

no code implementations2 Feb 2024 Jiaqi Wang, Junyu Luo, Muchao Ye, Xiaochen Wang, Yuan Zhong, Aofei Chang, Guanjie Huang, Ziyi Yin, Cao Xiao, Jimeng Sun, Fenglong Ma

This survey systematically reviews recent advances in deep learning-based predictive models using EHR data.

Mitigating Pooling Bias in E-commerce Search via False Negative Estimation

no code implementations11 Nov 2023 Xiaochen Wang, Xiao Xiao, Ruhan Zhang, Xuan Zhang, Taesik Na, Tejaswi Tenneti, Haixun Wang, Fenglong Ma

Efficient and accurate product relevance assessment is critical for user experiences and business success.

Hierarchical Pretraining on Multimodal Electronic Health Records

1 code implementation11 Oct 2023 Xiaochen Wang, Junyu Luo, Jiaqi Wang, Ziyi Yin, Suhan Cui, Yuan Zhong, Yaqing Wang, Fenglong Ma

Pretraining has proven to be a powerful technique in natural language processing (NLP), exhibiting remarkable success in various NLP downstream tasks.

MedDiffusion: Boosting Health Risk Prediction via Diffusion-based Data Augmentation

no code implementations4 Oct 2023 Yuan Zhong, Suhan Cui, Jiaqi Wang, Xiaochen Wang, Ziyi Yin, Yaqing Wang, Houping Xiao, Mengdi Huai, Ting Wang, Fenglong Ma

Health risk prediction is one of the fundamental tasks under predictive modeling in the medical domain, which aims to forecast the potential health risks that patients may face in the future using their historical Electronic Health Records (EHR).

Data Augmentation

Abnormal Event Detection via Hypergraph Contrastive Learning

no code implementations2 Apr 2023 Bo Yan, Cheng Yang, Chuan Shi, Jiawei Liu, Xiaochen Wang

AEHCL designs the intra-event and inter-event contrastive modules to exploit self-supervised AHIN information.

Contrastive Learning Event Detection

Statistical Dataset Evaluation: Reliability, Difficulty, and Validity

no code implementations19 Dec 2022 Chengwen Wang, Qingxiu Dong, Xiaochen Wang, Haitao Wang, Zhifang Sui

Taking the Named Entity Recognition (NER) datasets as a case study, we introduce $9$ statistical metrics for a statistical dataset evaluation framework.

named-entity-recognition Named Entity Recognition +1

BoXHED: Boosted eXact Hazard Estimator with Dynamic covariates

1 code implementation ICML 2020 Xiaochen Wang, Arash Pakbin, Bobak J. Mortazavi, Hongyu Zhao, Donald K. K. Lee

BoXHED 1. 0 is a novel tree-based implementation of the generic estimator proposed in Lee, Chen, Ishwaran (2017), which was designed for handling time-dependent covariates in a fully nonparametric manner.

Open-Ended Question Answering Survival Analysis

Modeling cell migration regulated by cell-ECM micromechanical coupling

no code implementations16 May 2019 Yu Zheng, Hanqing Nan, Qihui Fan, Xiaochen Wang, LiYu Liu, Ruchuan Liu, Fangfu Ye, Bo Sun, Yang Jiao

During migration, individual cells can generate active pulling forces via actin filament contraction, which are transmitted to the ECM fibers through focal adhesion complexes, remodel the ECM, and eventually propagate to and can be sensed by other cells in the system.

Course Concept Extraction in MOOCs via Embedding-Based Graph Propagation

no code implementations IJCNLP 2017 Liangming Pan, Xiaochen Wang, Chengjiang Li, Juanzi Li, Jie Tang

Massive Open Online Courses (MOOCs), offering a new way to study online, are revolutionizing education.

Fast Top-k Area Topics Extraction with Knowledge Base

no code implementations13 Oct 2017 Fang Zhang, Xiaochen Wang, Jingfei Han, Jie Tang, Shiyin Wang, Marie-Francine Moens

We leverage a large-scale knowledge base (Wikipedia) to generate topic embeddings using neural networks and use this kind of representations to help capture the representativeness of topics for given areas.

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