Search Results for author: Yang Xu

Found 75 papers, 28 papers with code

Dataset Management Platform for Machine Learning

no code implementations15 Mar 2023 Ze Mao, Yang Xu, Erick Suarez

Effective dataset management, including tasks such as data cleanup, versioning, access control, dataset transformation, automation, integrity and security, etc., can help improve the efficiency and speed of the machine learning process.


Deep learning for full-field ultrasonic characterization

no code implementations6 Jan 2023 Yang Xu, Fatemeh Pourahmadian, Jian Song, Conglin Wang

This study takes advantage of recent advances in machine learning to establish a physics-based data analytic platform for distributed reconstruction of mechanical properties in layered components from full waveform data.


An Instrumental Variable Approach to Confounded Off-Policy Evaluation

no code implementations29 Dec 2022 Yang Xu, Jin Zhu, Chengchun Shi, Shikai Luo, Rui Song

Off-policy evaluation (OPE) is a method for estimating the return of a target policy using some pre-collected observational data generated by a potentially different behavior policy.

Decision Making Off-policy evaluation

Quantile Off-Policy Evaluation via Deep Conditional Generative Learning

no code implementations29 Dec 2022 Yang Xu, Chengchun Shi, Shikai Luo, Lan Wang, Rui Song

Off-Policy evaluation (OPE) is concerned with evaluating a new target policy using offline data generated by a potentially different behavior policy.

Decision Making Off-policy evaluation

Adaptive Control of Client Selection and Gradient Compression for Efficient Federated Learning

no code implementations19 Dec 2022 Zhida Jiang, Yang Xu, Hongli Xu, Zhiyuan Wang, Chen Qian

Federated learning (FL) allows multiple clients cooperatively train models without disclosing local data.

Federated Learning

MOB-FL: Mobility-Aware Federated Learning for Intelligent Connected Vehicles

no code implementations7 Dec 2022 Bowen Xie, Yuxuan Sun, Sheng Zhou, Zhisheng Niu, Yang Xu, Jingran Chen, Deniz Gündüz

Federated learning (FL) is a promising approach to enable the future Internet of vehicles consisting of intelligent connected vehicles (ICVs) with powerful sensing, computing and communication capabilities.

Federated Learning Trajectory Prediction

Improving Performance of Automatic Keyword Extraction (AKE) Methods Using PoS-Tagging and Enhanced Semantic-Awareness

no code implementations9 Nov 2022 Enes Altuncu, Jason R. C. Nurse, Yang Xu, Jie Guo, Shujun Li

Automatic keyword extraction (AKE) has gained more importance with the increasing amount of digital textual data that modern computing systems process.

Information Retrieval Keyword Extraction +2

ReAFFPN: Rotation-equivariant Attention Feature Fusion Pyramid Networks for Aerial Object Detection

no code implementations17 Oct 2022 Chongyu Sun, Yang Xu, Zebin Wu, Zhihui Wei

This paper proposes a Rotation-equivariant Attention Feature Fusion Pyramid Networks for Aerial Object Detection named ReAFFPN.

object-detection Object Detection

Tracing Semantic Variation in Slang

1 code implementation16 Oct 2022 Zhewei Sun, Yang Xu

However, slang semantic variation is not well understood and under-explored in the natural language processing of slang.

Optimization of rule-based energy management strategies for hybrid vehicles using dynamic programming

no code implementations8 Jul 2022 Di Zhu, Ewan Pritchard, Sumanth Reddy Dadam, Vivek Kumar, Yang Xu

The popular vehicle dynamic model used in many energy management optimization studies does not capture the vehicle dynamics that the in-vehicle measurement system does.

energy management Management

KE-QI: A Knowledge Enhanced Article Quality Identification Dataset

no code implementations15 Jun 2022 Chunhui Ai, Derui Wang, Xu Yan, Yang Xu, Wenrui Xie, Ziqiang Cao

With so many articles of varying qualities being produced every moment, it is a very urgent task to screen outstanding articles and commit them to social media.

Text Classification

Crosslinguistic word order variation reflects evolutionary pressures of dependency and information locality

1 code implementation9 Jun 2022 Michael Hahn, Yang Xu

Using data from 80 languages in 17 language families and phylogenetic modeling, we demonstrate that languages evolve to balance these pressures, such that word order change is accompanied by change in the frequency distribution of the syntactic structures which speakers communicate to maintain overall efficiency.

Language Anisotropic Cross-Lingual Model Editing

no code implementations25 May 2022 Yang Xu, Yutai Hou, Wanxiang Che

Model editing aims to make post-hoc updates on specific facts in a model while leaving irrelevant knowledge unchanged.

Noun2Verb: Probabilistic frame semantics for word class conversion

1 code implementation12 May 2022 Lei Yu, Yang Xu

We present a formal framework, Noun2Verb, that simulates the production and comprehension of novel denominal verb usages by modeling shared knowledge of speaker and listener in semantic frames.

Semantically Informed Slang Interpretation

1 code implementation NAACL 2022 Zhewei Sun, Richard Zemel, Yang Xu

Slang is a predominant form of informal language making flexible and extended use of words that is notoriously hard for natural language processing systems to interpret.

Machine Translation Translation

Image Captioning In the Transformer Age

1 code implementation15 Apr 2022 Yang Xu, Li Li, Haiyang Xu, Songfang Huang, Fei Huang, Jianfei Cai

This drawback inspires the researchers to develop a homogeneous architecture that facilitates end-to-end training, for which Transformer is the perfect one that has proven its huge potential in both vision and language domains and thus can be used as the basic component of the visual encoder and language decoder in an IC pipeline.

Image Captioning Self-Supervised Learning

Neural reality of argument structure constructions

1 code implementation ACL 2022 Bai Li, Zining Zhu, Guillaume Thomas, Frank Rudzicz, Yang Xu

Second, in a "Jabberwocky" priming-based experiment, we find that LMs associate ASCs with meaning, even in semantically nonsensical sentences.

Improving short-term bike sharing demand forecast through an irregular convolutional neural network

no code implementations9 Feb 2022 Xinyu Li, Yang Xu, Xiaohu Zhang, Wenzhong Shi, Yang Yue, Qingquan Li

As an important task for the management of bike sharing systems, accurate forecast of travel demand could facilitate dispatch and relocation of bicycles to improve user satisfaction.


HistBERT: A Pre-trained Language Model for Diachronic Lexical Semantic Analysis

1 code implementation8 Feb 2022 Wenjun Qiu, Yang Xu

Contextualized word embeddings have demonstrated state-of-the-art performance in various natural language processing tasks including those that concern historical semantic change.

Language Modelling Word Embeddings +1

ML4CO-KIDA: Knowledge Inheritance in Dataset Aggregation

1 code implementation25 Jan 2022 Zixuan Cao, Yang Xu, Zhewei Huang, Shuchang Zhou

The Machine Learning for Combinatorial Optimization (ML4CO) NeurIPS 2021 competition aims to improve state-of-the-art combinatorial optimization solvers by replacing key heuristic components with machine learning models.

BIG-bench Machine Learning Combinatorial Optimization

Nonlinear Intensity Underwater Sonar Image Matching Method Based on Phase Information and Deep Convolution Features

no code implementations29 Nov 2021 Xiaoteng Zhou, Changli Yu, Xin Yuan, Haijun Feng, Yang Xu

In the field of deep-sea exploration, sonar is presently the only efficient long-distance sensing device.

Breaking the curse of dimensionality with Isolation Kernel

no code implementations29 Sep 2021 Kai Ming Ting, Takashi Washio, Ye Zhu, Yang Xu

The curse of dimensionality has been studied in different aspects.

An unsupervised framework for tracing textual sources of moral change

1 code implementation Findings (EMNLP) 2021 Aida Ramezani, Zining Zhu, Frank Rudzicz, Yang Xu

Morality plays an important role in social well-being, but people's moral perception is not stable and changes over time.

Evolution of emotion semantics

1 code implementation5 Aug 2021 Aotao Xu, Jennifer E. Stellar, Yang Xu

This consensus may give the impression that their meaning is static, but we propose this is not the case.

Word Embeddings

What do writing features tell us about AI papers?

1 code implementation13 Jul 2021 Zining Zhu, Bai Li, Yang Xu, Frank Rudzicz

As the numbers of submissions to conferences grow quickly, the task of assessing the quality of academic papers automatically, convincingly, and with high accuracy attracts increasing attention.

Measuring Financial Time Series Similarity With a View to Identifying Profitable Stock Market Opportunities

1 code implementation7 Jul 2021 Rian Dolphin, Barry Smyth, Yang Xu, Ruihai Dong

Forecasting stock returns is a challenging problem due to the highly stochastic nature of the market and the vast array of factors and events that can influence trading volume and prices.

Future prediction Stock Prediction +1

SIMPL: Generating Synthetic Overhead Imagery to Address Zero-shot and Few-Shot Detection Problems

1 code implementation29 Jun 2021 Yang Xu, Bohao Huang, Xiong Luo, Kyle Bradbury, Jordan M. Malof

Recently deep neural networks (DNNs) have achieved tremendous success for object detection in overhead (e. g., satellite) imagery.

Few-Shot Learning object-detection +1

A diachronic evaluation of gender asymmetry in euphemism

no code implementations ACL (LChange) 2021 Anna Kapron-King, Yang Xu

We assembled a list of 106 euphemism-taboo pairs to analyze their relative use through time by each gender in the corpora.

How is BERT surprised? Layerwise detection of linguistic anomalies

1 code implementation ACL 2021 Bai Li, Zining Zhu, Guillaume Thomas, Yang Xu, Frank Rudzicz

Transformer language models have shown remarkable ability in detecting when a word is anomalous in context, but likelihood scores offer no information about the cause of the anomaly.

Density Estimation

Integration of Unpaired Single-cell Chromatin Accessibility and Gene Expression Data via Adversarial Learning

no code implementations26 Apr 2021 Yang Xu, Andrew Jeremiah Strick

Deep learning has empowered analysis for single-cell sequencing data in many ways and has generated deep understanding about a range of complex cellular systems.

Data Integration Domain Adaptation

A Computational Framework for Slang Generation

1 code implementation3 Feb 2021 Zhewei Sun, Richard Zemel, Yang Xu

Slang is a common type of informal language, but its flexible nature and paucity of data resources present challenges for existing natural language systems.

Contrastive Learning

Self Sparse Generative Adversarial Networks

no code implementations26 Jan 2021 Wenliang Qian, Yang Xu, WangMeng Zuo, Hui Li

In this work, we propose a Self Sparse Generative Adversarial Network (Self-Sparse GAN) that reduces the parameter space and alleviates the zero gradient problem.

Image Generation

LayoutLMv2: Multi-modal Pre-training for Visually-Rich Document Understanding

5 code implementations ACL 2021 Yang Xu, Yiheng Xu, Tengchao Lv, Lei Cui, Furu Wei, Guoxin Wang, Yijuan Lu, Dinei Florencio, Cha Zhang, Wanxiang Che, Min Zhang, Lidong Zhou

Pre-training of text and layout has proved effective in a variety of visually-rich document understanding tasks due to its effective model architecture and the advantage of large-scale unlabeled scanned/digital-born documents.

Document Image Classification Document Layout Analysis +4

Semantic coordinates analysis reveals language changes in the AI field

no code implementations1 Nov 2020 Zining Zhu, Yang Xu, Frank Rudzicz

Semantic shifts can reflect changes in beliefs across hundreds of years, but it is less clear whether trends in fast-changing communities across a short time can be detected.

A robust low data solution: dimension prediction of semiconductor nanorods

no code implementations27 Oct 2020 Xiaoli Liu, Yang Xu, Jiali Li, Xuanwei Ong, Salwa Ali Ibrahim, Tonio Buonassisi, Xiaonan Wang

Deep neural network is further applied to develop regression model which demonstrated the well performed prediction on both the original and generated data with a similar distribution.


Inferring symmetry in natural language

1 code implementation Findings of the Association for Computational Linguistics 2020 Chelsea Tanchip, Lei Yu, Aotao Xu, Yang Xu

Our results show that a hybrid transfer learning model that integrates linguistic features with contextualized language models most faithfully predicts the empirical data.

Transfer Learning

Word class flexibility: A deep contextualized approach

2 code implementations EMNLP 2020 Bai Li, Guillaume Thomas, Yang Xu, Frank Rudzicz

Word class flexibility refers to the phenomenon whereby a single word form is used across different grammatical categories.

Word Embeddings

Contextualized moral inference

no code implementations25 Aug 2020 Jing Yi Xie, Graeme Hirst, Yang Xu

Our methodology builds on recent work in contextualized language models and textual inference of moral sentiment.

Word Embeddings

Improving probability selecting based weights for Satisfiability Problem

no code implementations30 Jul 2020 Huimin Fu, Yang Xu, Jun Liu, Guanfeng Wu, Sutcliffe Geoff

SelectNTS is an improved probability selecting based local search algorithm for SAT problem.

Variable Selection

A Unified Single-loop Alternating Gradient Projection Algorithm for Nonconvex-Concave and Convex-Nonconcave Minimax Problems

no code implementations3 Jun 2020 Zi Xu, Huiling Zhang, Yang Xu, Guanghui Lan

Moreover, its gradient complexity to obtain an $\varepsilon$-stationary point of the objective function is bounded by $\mathcal{O}\left( \varepsilon ^{-2} \right)$ (resp., $\mathcal{O}\left( \varepsilon ^{-4} \right)$) under the strongly convex-nonconcave (resp., convex-nonconcave) setting.

MultiXNet: Multiclass Multistage Multimodal Motion Prediction

no code implementations3 Jun 2020 Nemanja Djuric, Henggang Cui, Zhaoen Su, Shangxuan Wu, Huahua Wang, Fang-Chieh Chou, Luisa San Martin, Song Feng, Rui Hu, Yang Xu, Alyssa Dayan, Sidney Zhang, Brian C. Becker, Gregory P. Meyer, Carlos Vallespi-Gonzalez, Carl K. Wellington

One of the critical pieces of the self-driving puzzle is understanding the surroundings of a self-driving vehicle (SDV) and predicting how these surroundings will change in the near future.

motion prediction

The Typology of Polysemy: A Multilingual Distributional Framework

no code implementations2 Jun 2020 Ella Rabinovich, Yang Xu, Suzanne Stevenson

Lexical semantic typology has identified important cross-linguistic generalizations about the variation and commonalities in polysemy patterns---how languages package up meanings into words.

Corpus of Chinese Dynastic Histories: Gender Analysis over Two Millennia

no code implementations LREC 2020 Sergey Zinin, Yang Xu

Chinese dynastic histories form a large continuous linguistic space of approximately 2000 years, from the 3rd century BCE to the 18th century CE.

Multi-Feature Discrete Collaborative Filtering for Fast Cold-start Recommendation

no code implementations24 Mar 2020 Yang Xu, Lei Zhu, Zhiyong Cheng, Jingjing Li, Jiande Sun

Additionally, we develop a fast discrete optimization algorithm to directly compute the binary hash codes with simple operations.

Collaborative Filtering Quantization

A Computational Investigation on Denominalization

1 code implementation13 Feb 2020 Zahra Shekarchi, Yang Xu

Language has been a dynamic system and word meanings always have been changed over times.

Application of Pre-training Models in Named Entity Recognition

no code implementations9 Feb 2020 Yu Wang, Yining Sun, Zuchang Ma, Lisheng Gao, Yang Xu, Ting Sun

Then, we apply these pre-training models to a NER task by fine-tuning, and compare the effects of the different model architecture and pre-training tasks on the NER task.

named-entity-recognition Named Entity Recognition +1

Slang Detection and Identification

no code implementations CONLL 2019 Zhengqi Pei, Zhewei Sun, Yang Xu

The prevalence of informal language such as slang presents challenges for natural language systems, particularly in the automatic discovery of flexible word usages.

Sentiment Analysis

Treat the Word As a Whole or Look Inside? Subword Embeddings Model Language Change and Typology

1 code implementation WS 2019 Yang Xu, Jiasheng Zhang, David Reitter

We use a variant of word embedding model that incorporates subword information to characterize the degree of compositionality in lexical semantics.

Fourier-based Rotation-invariant Feature Boosting: An Efficient Framework for Geospatial Object Detection

no code implementations27 May 2019 Xin Wu, Danfeng Hong, Jocelyn Chanussot, Yang Xu, Ran Tao, Yue Wang

To this end, we propose a novel and efficient framework for geospatial object detection in this letter, called Fourier-based rotation-invariant feature boosting (FRIFB).

object-detection Object Detection

Automated Essay Scoring based on Two-Stage Learning

2 code implementations23 Jan 2019 Jiawei Liu, Yang Xu, Yaguang Zhu

Current state-of-art feature-engineered and end-to-end Automated Essay Score (AES) methods are proven to be unable to detect adversarial samples, e. g. the essays composed of permuted sentences and the prompt-irrelevant essays.

Automated Essay Scoring

C2TCP: A Flexible Cellular TCP to Meet Stringent Delay Requirements

2 code implementations29 Oct 2018 Soheil Abbasloo, Yang Xu, H. Jonathan Chao

Since current widely available network protocols/systems are mainly throughput-oriented designs, meeting stringent delay requirements of new applications such as virtual reality and vehicle-to-vehicle communications on cellular network requires new network protocol/system designs.

Networking and Internet Architecture

Incorporating Image Matching Into Knowledge Acquisition for Event-Oriented Relation Recognition

no code implementations COLING 2018 Yu Hong, Yang Xu, Huibin Ruan, Bowei Zou, Jianmin Yao, Guodong Zhou

In particular, we incorporate image processing into the acquisition of similar event instances, including the utilization of images for visually representing event scenes, and the use of the neural network based image matching for approximate calculation between events.

Cellular Controlled Delay TCP (C2TCP)

1 code implementation7 Jul 2018 Soheil Abbasloo, Tong Li, Yang Xu, H. Jonathan Chao

To cope with these challenges, we present C2TCP, a flexible end-to-end solution targeting interactive applications requiring high throughput and low delay in cellular networks.

Networking and Internet Architecture

Spectral Analysis of Information Density in Dialogue Predicts Collaborative Task Performance

no code implementations ACL 2017 Yang Xu, David Reitter

We propose a perspective on dialogue that focuses on relative information contributions of conversation partners as a key to successful communication.

Redefinition of the concept of fuzzy set based on vague partition from the perspective of axiomatization

no code implementations27 Jan 2017 Xiaodong Pan, Yang Xu

Based on the in-depth analysis of the essence and features of vague phenomena, this paper focuses on establishing the axiomatical foundation of membership degree theory for vague phenomena, presents an axiomatic system to govern membership degrees and their interconnections.

Implicitly Incorporating Morphological Information into Word Embedding

no code implementations10 Jan 2017 Yang Xu, Jiawei Liu

In this paper, we propose three novel models to enhance word embedding by implicitly using morphological information.

Word Similarity

Graph Regularized Non-negative Matrix Factorization By Maximizing Correntropy

no code implementations9 May 2014 Le Li, Jianjun Yang, Kaili Zhao, Yang Xu, Honggang Zhang, Zhuoyi Fan

Non-negative matrix factorization (NMF) has proved effective in many clustering and classification tasks.

Image Clustering

Inference and communication in the game of Password

no code implementations NeurIPS 2010 Yang Xu, Charles Kemp

Second, we predict that speakers and hearers are calibrated, and that both make accurate assumptions about the strategy used by the other.

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