Search Results for author: Haipeng Zhang

Found 13 papers, 5 papers with code

Decision-Oriented Learning for Future Power System Decision-Making under Uncertainty

no code implementations8 Jan 2024 Ran Li, Haipeng Zhang, Mingyang Sun, Fei Teng, Can Wan, Salvador Pineda, Georges Kariniotakis

This paper first elaborates on the mismatch between more accurate forecasts and more optimal decisions in the power system caused by statistical-based learning (SBL) and explains how DOL resolves this problem.

Decision Making Decision Making Under Uncertainty

Adaptive Decision-Objective Loss for Forecast-then-Optimize in Power Systems

no code implementations21 Dec 2023 Haipeng Zhang, Ran Li, Mingyang Sun, Teng Fei

However, the implementation of decision loss in power systems faces challenges in 1) accommodating multi-stage decision-making problems where upstream optimality cannot guarantee final optimality; 2) adapting to dynamic environments such as changing parameters and nature of the problem like continuous or discrete optimization tasks.

Decision Making

Multiple Instance Learning for Uplift Modeling

no code implementations15 Dec 2023 Yao Zhao, Haipeng Zhang, Shiwei Lyu, Ruiying Jiang, Jinjie Gu, Guannan Zhang

Uplift modeling is widely used in performance marketing to estimate effects of promotion campaigns (e. g., increase of customer retention rate).

Marketing Multiple Instance Learning

It Ain't That Bad: Understanding the Mysterious Performance Drop in OOD Generalization for Generative Transformer Models

1 code implementation16 Aug 2023 Xingcheng Xu, Zihao Pan, Haipeng Zhang, Yanqing Yang

Specifically, these models map unseen OOD inputs to outputs with equivalence relations in the ID domain.

Where Did the President Visit Last Week? Detecting Celebrity Trips from News Articles

1 code implementation17 Jul 2023 Kai Peng, Ying Zhang, Shuai Ling, Zhaoru Ke, Haipeng Zhang

Although news articles contain travel information of celebrities, it is not possible to perform large-scale and network-wise analysis due to the lack of automatic itinerary detection tools.

SIMPLE: Specialized Model-Sample Matching for Domain Generalization

1 code implementation International Conference on Learning Representations 2023 Ziyue Li, Kan Ren, Xinyang Jiang, Yifei Shen, Haipeng Zhang, Dongsheng Li

Moreover, our method is highly efficient and achieves more than 1000 times training speedup compared to the conventional DG methods with fine-tuning a pretrained model.

Domain Generalization

Risk-Aware Objective-Based Forecasting in Inertia Management

no code implementations21 Mar 2023 Haipeng Zhang, Ran Li, Yan Chen, Zhongda Chu, Mingyang Sun, Fei Teng

The objective-based forecasting considers the asymmetric and non-linear impacts of forecasting errors on decision objectives, thus improving the effectiveness of its downstream decision-making process.

Decision Making Management

For the Underrepresented in Gender Bias Research: Chinese Name Gender Prediction with Heterogeneous Graph Attention Network

1 code implementation1 Feb 2023 Zihao Pan, Kai Peng, Shuai Ling, Haipeng Zhang

We open-source a more balanced multi-character dataset from an official source together with our code, hoping to help future research promoting gender equality.

Gender Prediction Graph Attention

SANE: Specialization-Aware Neural Network Ensemble

no code implementations29 Sep 2021 Ziyue Li, Kan Ren, Xinyang Jiang, Mingzhe Han, Haipeng Zhang, Dongsheng Li

Real-world data is often generated by some complex distribution, which can be approximated by a composition of multiple simpler distributions.

Ensemble Learning

Knowledge Graph Enhanced Event Extraction in Financial Documents

no code implementations6 Sep 2021 Kaihao Guo, Tianpei Jiang, Haipeng Zhang

Event extraction is a classic task in natural language processing with wide use in handling large amount of yet rapidly growing financial, legal, medical, and government documents which often contain multiple events with their elements scattered and mixed across the documents, making the problem much more difficult.

Event Extraction

Graph Neural Network Based VC Investment Success Prediction

no code implementations25 May 2021 Shiwei Lyu, Shuai Ling, Kaihao Guo, Haipeng Zhang, Kunpeng Zhang, Suting Hong, Qing Ke, Jinjie Gu

Predicting the start-ups that will eventually succeed is essentially important for the venture capital business and worldwide policy makers, especially at an early stage such that rewards can possibly be exponential.

Representation Learning

Sill-Net: Feature Augmentation with Separated Illumination Representation

1 code implementation6 Feb 2021 Haipeng Zhang, Zhong Cao, Ziang Yan, ChangShui Zhang

For visual object recognition tasks, the illumination variations can cause distinct changes in object appearance and thus confuse the deep neural network based recognition models.

Few-Shot Image Classification Object +2

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