Search Results for author: Kaixun Hua

Found 5 papers, 2 papers with code

A GPU-Accelerated Moving-Horizon Algorithm for Training Deep Classification Trees on Large Datasets

no code implementations12 Nov 2023 Jiayang Ren, Valentín Osuna-Enciso, Morimasa Okamoto, Qiangqiang Mao, Chaojie Ji, Liang Cao, Kaixun Hua, Yankai Cao

Decision trees are essential yet NP-complete to train, prompting the widespread use of heuristic methods such as CART, which suffers from sub-optimal performance due to its greedy nature.

Multilingual Lexical Simplification via Paraphrase Generation

1 code implementation28 Jul 2023 Kang Liu, Jipeng Qiang, Yun Li, Yunhao Yuan, Yi Zhu, Kaixun Hua

After feeding the input sentence into the encoder of paraphrase modeling, we generate the substitutes based on a novel decoding strategy that concentrates solely on the lexical variations of the complex word.

Lexical Simplification Machine Translation +3

A Global Optimization Algorithm for K-Center Clustering of One Billion Samples

no code implementations30 Dec 2022 Jiayang Ren, Ningning You, Kaixun Hua, Chaojie Ji, Yankai Cao

This paper presents a practical global optimization algorithm for the K-center clustering problem, which aims to select K samples as the cluster centers to minimize the maximum within-cluster distance.

Clustering

Deep Learning-based Predictive Control of Battery Management for Frequency Regulation

1 code implementation4 Jan 2022 Yun Li, Yixiu Wang, Yifu Chen, Kaixun Hua, Jiayang Ren, Ghazaleh Mozafari, Qiugang Lu, Yankai Cao

The design procedure of the proposed scheme consists of two sequential processes: (1) the SL process, in which we first run a simulation with an MPC embedding a low-fidelity battery model to generate a training data set, and then, based on the generated data set, we optimize a DNN-approximated policy using SL algorithms; and (2) the RL process, in which we utilize RL algorithms to improve the performance of the DNN-approximated policy by balancing short-term economic incentives and long-term battery degradation.

Management Model Predictive Control +1

Data ultrametricity and clusterability

no code implementations28 Aug 2019 Dan Simovici, Kaixun Hua

The increasing needs of clustering massive datasets and the high cost of running clustering algorithms poses difficult problems for users.

Clustering

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