Search Results for author: Xuan Wu

Found 18 papers, 9 papers with code

A Gaussian Process Based Method with Deep Kernel Learning for Pricing High-dimensional American Options

no code implementations13 Nov 2023 Jirong Zhuang, Deng Ding, Weiguo Lu, Xuan Wu, Gangnan Yuan

In this work, we present a novel machine learning approach for pricing high-dimensional American options based on the modified Gaussian process regression (GPR).

GPR regression +1

An Efficient 1 Iteration Learning Algorithm for Gaussian Mixture Model And Gaussian Mixture Embedding For Neural Network

no code implementations18 Aug 2023 Weiguo Lu, Xuan Wu, Deng Ding, Gangnan Yuan

We propose an Gaussian Mixture Model (GMM) learning algorithm, based on our previous work of GMM expansion idea.

Youku-mPLUG: A 10 Million Large-scale Chinese Video-Language Dataset for Pre-training and Benchmarks

1 code implementation7 Jun 2023 Haiyang Xu, Qinghao Ye, Xuan Wu, Ming Yan, Yuan Miao, Jiabo Ye, Guohai Xu, Anwen Hu, Yaya Shi, Guangwei Xu, Chenliang Li, Qi Qian, Maofei Que, Ji Zhang, Xiao Zeng, Fei Huang

In addition, to facilitate a comprehensive evaluation of video-language models, we carefully build the largest human-annotated Chinese benchmarks covering three popular video-language tasks of cross-modal retrieval, video captioning, and video category classification.

Cross-Modal Retrieval Language Modelling +3

Shape-Aware Fine-Grained Classification of Erythroid Cells

1 code implementation28 Dec 2022 Ye Wang, Rui Ma, Xiaoqing Ma, Honghua Cui, Yubin Xiao, Xuan Wu, You Zhou

BMEC contains 5, 666 images of individual erythroid cells, each of which is extracted from the bone marrow erythroid cell smears and professionally annotated to one of the four types of erythroid cells.

Classification Image Classification

Differentiable Fuzzy $\mathcal{ALC}$: A Neural-Symbolic Representation Language for Symbol Grounding

no code implementations22 Nov 2022 Xuan Wu, Xinhao Zhu, Yizheng Zhao, Xinyu Dai

DF-$\mathcal{ALC}$ unifies the description logic $\mathcal{ALC}$ and neural models for symbol grounding; in particular, it infuses an $\mathcal{ALC}$ knowledge base into neural models through differentiable concept and role embeddings.

New Coresets for Projective Clustering and Applications

1 code implementation8 Mar 2022 Murad Tukan, Xuan Wu, Samson Zhou, Vladimir Braverman, Dan Feldman

$(j, k)$-projective clustering is the natural generalization of the family of $k$-clustering and $j$-subspace clustering problems.

Clustering regression

Incorporating Surprisingly Popular Algorithm and Euclidean Distance-based Adaptive Topology into PSO

1 code implementation25 Aug 2021 Xuan Wu, Jizong Han, Di Wang, Pengyue Gao, Quanlong Cui, Liang Chen, Yanchun Liang, Han Huang, Heow Pueh Lee, Chunyan Miao, You Zhou, Chunguo Wu

While many Particle Swarm Optimization (PSO) algorithms only use fitness to assess the performance of particles, in this work, we adopt Surprisingly Popular Algorithm (SPA) as a complementary metric in addition to fitness.

Single Particle Analysis

Neural Architecture Search based on Cartesian Genetic Programming Coding Method

no code implementations12 Mar 2021 Xuan Wu, Linhan Jia, Xiuyi Zhang, Liang Chen, Yanchun Liang, You Zhou, Chunguo Wu

To evolve the architectures under the framework of CGP, the operations such as convolution are identified as the types of function nodes of CGP, and the evolutionary operations are designed based on Evolutionary Strategy.

BIG-bench Machine Learning Neural Architecture Search +2

Coresets for Gaussian Mixture Models of Any Shape

no code implementations12 Jun 2019 Dan Feldman, Zahi Kfir, Xuan Wu

For example, for any input set $D$ whose coordinates are integers in $[-n^{100}, n^{100}]$ and any fixed $k, d\geq 1$, the coreset size is $(\log n)^{O(1)}/\varepsilon^2$, and can be computed in time near-linear in $n$, with high probability.

Clustering

Coresets for Ordered Weighted Clustering

1 code implementation11 Mar 2019 Vladimir Braverman, Shaofeng H. -C. Jiang, Robert Krauthgamer, Xuan Wu

We design coresets for Ordered k-Median, a generalization of classical clustering problems such as k-Median and k-Center, that offers a more flexible data analysis, like easily combining multiple objectives (e. g., to increase fairness or for Pareto optimization).

Data Structures and Algorithms

Wasserstein Identity Testing

no code implementations28 Oct 2017 Shichuan Deng, Wenzheng Li, Xuan Wu

In this paper, we propose the Wasserstein identity testing problem (Identity Testing in Wasserstein distance).

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