Search Results for author: Chen Zheng

Found 28 papers, 9 papers with code

Customized Routing Optimization Based on Gradient Boost Regressor Model

no code implementations28 Oct 2017 Chen Zheng, Clara Grzegorz Kasprowicz, Carol Saunders

Customized routing optimizations are applied to the URNs and results show clear timing improvement and trend to converge toward timing closure.

BIG-bench Machine Learning

Automated Generation and Ensemble-Learned Matching of X-ray Absorption Spectra

no code implementations6 Nov 2017 Chen Zheng, Kiran Mathew, Chi Chen, Yiming Chen, Hanmei Tang, Alan Dozier, Joshua J. Kas, Fernando D. Vila, John J. Rehr, Louis F. J. Piper, Kristin Persson, Shyue Ping Ong

We report the development of XASdb, a large database of computed reference X-ray absorption spectra (XAS), and a novel Ensemble-Learned Spectra IdEntification (ELSIE) algorithm for the matching of spectra.

Materials Science

Machine Learning Based Fast Power Integrity Classifier

no code implementations8 Nov 2017 HuaChun Zhang, Lynden Kagan, Chen Zheng

In this paper, we proposed a new machine learning based fast power integrity classifier that quickly flags the EM/IR hotspots.

BIG-bench Machine Learning

A Deep Learning Approach for Expert Identification in Question Answering Communities

no code implementations14 Nov 2017 Chen Zheng, Shuangfei Zhai, Zhongfei Zhang

This approach uses the convolutional neural network and combines user feature representations with question feature representations to compute scores that the user who gets the highest score is the expert on this question.

Question Answering Sentence

BigDataBench: A Scalable and Unified Big Data and AI Benchmark Suite

no code implementations23 Feb 2018 Wanling Gao, Jianfeng Zhan, Lei Wang, Chunjie Luo, Daoyi Zheng, Xu Wen, Rui Ren, Chen Zheng, Xiwen He, Hainan Ye, Haoning Tang, Zheng Cao, Shujie Zhang, Jiahui Dai

On the basis of our previous work that identifies eight data motifs taking up most of the run time of a wide variety of big data and AI workloads, we propose a scalable benchmarking methodology that uses the combination of one or more data motifs---to represent diversity of big data and AI workloads.

Benchmarking Management

Graph Networks as a Universal Machine Learning Framework for Molecules and Crystals

3 code implementations Chem. Mater. 2018 Chi Chen, Weike Ye, Yunxing Zuo, Chen Zheng, Shyue Ping Ong

Similarly, we show that MEGNet models trained on $\sim 60, 000$ crystals in the Materials Project substantially outperform prior ML models in the prediction of the formation energies, band gaps and elastic moduli of crystals, achieving better than DFT accuracy over a much larger data set.

Drug Discovery Formation Energy Materials Science Computational Physics

RLTM: An Efficient Neural IR Framework for Long Documents

no code implementations22 Jun 2019 Chen Zheng, Yu Sun, Shengxian Wan, dianhai yu

This paper proposes a novel End-to-End neural ranking framework called Reinforced Long Text Matching (RLTM) which matches a query with long documents efficiently and effectively.

Information Retrieval Retrieval +2

Edge AIBench: Towards Comprehensive End-to-end Edge Computing Benchmarking

no code implementations6 Aug 2019 Tianshu Hao, Yunyou Huang, Xu Wen, Wanling Gao, Fan Zhang, Chen Zheng, Lei Wang, Hainan Ye, Kai Hwang, Zujie Ren, Jianfeng Zhan

In edge computing scenarios, the distribution of data and collaboration of workloads on different layers are serious concerns for performance, privacy, and security issues.

Performance Distributed, Parallel, and Cluster Computing

AIBench: An Industry Standard Internet Service AI Benchmark Suite

no code implementations13 Aug 2019 Wanling Gao, Fei Tang, Lei Wang, Jianfeng Zhan, Chunxin Lan, Chunjie Luo, Yunyou Huang, Chen Zheng, Jiahui Dai, Zheng Cao, Daoyi Zheng, Haoning Tang, Kunlin Zhan, Biao Wang, Defei Kong, Tong Wu, Minghe Yu, Chongkang Tan, Huan Li, Xinhui Tian, Yatao Li, Junchao Shao, Zhenyu Wang, Xiaoyu Wang, Hainan Ye

On the basis of the AIBench framework, abstracting the real-world data sets and workloads from one of the top e-commerce providers, we design and implement the first end-to-end Internet service AI benchmark, which contains the primary modules in the critical paths of an industry scale application and is scalable to deploy on different cluster scales.

Benchmarking Learning-To-Rank

Cross-Modality Relevance for Reasoning on Language and Vision

1 code implementation ACL 2020 Chen Zheng, Quan Guo, Parisa Kordjamshidi

This work deals with the challenge of learning and reasoning over language and vision data for the related downstream tasks such as visual question answering (VQA) and natural language for visual reasoning (NLVR).

Question Answering Visual Question Answering +1

Relational Gating for "What If" Reasoning

1 code implementation27 May 2021 Chen Zheng, Parisa Kordjamshidi

We propose a novel relational gating network that learns to filter the key entities and relationships and learns contextual and cross representations of both procedure and question for finding the answer.

GCF: Generalized Causal Forest for Heterogeneous Treatment Effect Estimation Using Nonparametric Methods

no code implementations29 Sep 2021 Shu Wan, Chen Zheng, Zhonggen Sun, Mengfan Xu, Xiaoqing Yang, Jiecheng Guo, Hongtu Zhu

Heterogeneous treatment effect (HTE) estimation with continuous treatment is essential in multiple disciplines, such as the online marketplace and pharmaceutical industry.

GCF: Generalized Causal Forest for Heterogeneous Treatment Effect Estimation in Online Marketplace

no code implementations21 Mar 2022 Shu Wan, Chen Zheng, Zhonggen Sun, Mengfan Xu, Xiaoqing Yang, Hongtu Zhu, Jiecheng Guo

We show the effectiveness of GCF by deriving the asymptotic property of the estimator and comparing it to popular uplift modeling methods on both synthetic and real-world datasets.

Causal Inference Decision Making

Relevant CommonSense Subgraphs for "What if..." Procedural Reasoning

1 code implementation21 Mar 2022 Chen Zheng, Parisa Kordjamshidi

We study the challenge of learning causal reasoning over procedural text to answer "What if..." questions when external commonsense knowledge is required.

Long-term Causal Effects Estimation via Latent Surrogates Representation Learning

1 code implementation9 Aug 2022 Ruichu Cai, Weilin Chen, Zeqin Yang, Shu Wan, Chen Zheng, Xiaoqing Yang, Jiecheng Guo

Estimating long-term causal effects based on short-term surrogates is a significant but challenging problem in many real-world applications, e. g., marketing and medicine.

Marketing Representation Learning +1

Dynamic Relevance Graph Network for Knowledge-Aware Question Answering

1 code implementation COLING 2022 Chen Zheng, Parisa Kordjamshidi

DRGN operates on a given KG subgraph based on the question and answers entities and uses the relevance scores between the nodes to establish new edges dynamically for learning node representations in the graph network.

Question Answering

Point-Voxel Adaptive Feature Abstraction for Robust Point Cloud Classification

1 code implementation27 Oct 2022 Lifa Zhu, Changwei Lin, Chen Zheng, Ninghua Yang

Specifically, the proposed framework iteratively voxelize the point cloud and extract point-voxel feature with shared local encoding and Transformer.

Classification Point Cloud Classification

GLUECons: A Generic Benchmark for Learning Under Constraints

1 code implementation16 Feb 2023 Hossein Rajaby Faghihi, Aliakbar Nafar, Chen Zheng, Roshanak Mirzaee, Yue Zhang, Andrzej Uszok, Alexander Wan, Tanawan Premsri, Dan Roth, Parisa Kordjamshidi

Recent research has shown that integrating domain knowledge into deep learning architectures is effective -- it helps reduce the amount of required data, improves the accuracy of the models' decisions, and improves the interpretability of models.

Improving the Generalization Ability in Essay Coherence Evaluation through Monotonic Constraints

no code implementations25 Jul 2023 Chen Zheng, huan zhang, Yan Zhao, Yuxuan Lai

To address these concerns, we propose a coherence scoring model consisting of a regression model with two feature extractors: a local coherence discriminative model and a punctuation correction model.

Coherence Evaluation regression +1

Balancing Specialized and General Skills in LLMs: The Impact of Modern Tuning and Data Strategy

no code implementations7 Oct 2023 Zheng Zhang, Chen Zheng, Da Tang, Ke Sun, Yukun Ma, Yingtong Bu, Xun Zhou, Liang Zhao

This paper introduces a multifaceted methodology for fine-tuning and evaluating large language models (LLMs) for specialized monetization tasks.

A Self-enhancement Approach for Domain-specific Chatbot Training via Knowledge Mining and Digest

no code implementations17 Nov 2023 Ruohong Zhang, Luyu Gao, Chen Zheng, Zhen Fan, Guokun Lai, Zheng Zhang, Fangzhou Ai, Yiming Yang, Hongxia Yang

This paper introduces a novel approach to enhance LLMs by effectively extracting the relevant knowledge from domain-specific textual sources, and the adaptive training of a chatbot with domain-specific inquiries.

Chatbot Text Generation

ICE-GRT: Instruction Context Enhancement by Generative Reinforcement based Transformers

no code implementations4 Jan 2024 Chen Zheng, Ke Sun, Da Tang, Yukun Ma, Yuyu Zhang, Chenguang Xi, Xun Zhou

The emergence of Large Language Models (LLMs) such as ChatGPT and LLaMA encounter limitations in domain-specific tasks, with these models often lacking depth and accuracy in specialized areas, and exhibiting a decrease in general capabilities when fine-tuned, particularly analysis ability in small sized models.

Balancing Enhancement, Harmlessness, and General Capabilities: Enhancing Conversational LLMs with Direct RLHF

no code implementations4 Mar 2024 Chen Zheng, Ke Sun, Hang Wu, Chenguang Xi, Xun Zhou

This process often leads to issues such as forgetting or a decrease in the base model's abilities.

Relevant CommonSense Subgraphs for “What if...” Procedural Reasoning

no code implementations Findings (ACL) 2022 Chen Zheng, Parisa Kordjamshidi

We study the challenge of learning causal reasoning over procedural text to answer “What if...” questions when external commonsense knowledge is required.

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