Search Results for author: Renzhi Wu

Found 10 papers, 6 papers with code

Decentralized Personalized Online Federated Learning

no code implementations8 Nov 2023 Renzhi Wu, Saayan Mitra, Xiang Chen, Anup Rao

Therefore, we propose a new learning setting \textit{Decentralized Personalized Online Federated Learning} that considers all the three aspects at the same time.

Federated Learning

Rethinking Similarity Search: Embracing Smarter Mechanisms over Smarter Data

no code implementations2 Aug 2023 Renzhi Wu, Jingfan Meng, Jie Jeff Xu, Huayi Wang, Kexin Rong

In this vision paper, we propose a shift in perspective for improving the effectiveness of similarity search.

Retrieval

Ground Truth Inference for Weakly Supervised Entity Matching

no code implementations13 Nov 2022 Renzhi Wu, Alexander Bendeck, Xu Chu, Yeye He

We also show that a deep learning EM end model (DeepMatcher) trained on labels generated from our weak supervision approach is comparable to an end model trained using tens of thousands of ground-truth labels, demonstrating that our approach can significantly reduce the labeling efforts required in EM.

Learning Hyper Label Model for Programmatic Weak Supervision

1 code implementation27 Jul 2022 Renzhi Wu, Shen-En Chen, Jieyu Zhang, Xu Chu

We train the model on synthetic data generated in the way that ensures the model approximates the analytical optimal solution, and build the model upon Graph Neural Network (GNN) to ensure the model prediction being invariant (or equivariant) to the permutation of LFs (or data points).

Learning to be a Statistician: Learned Estimator for Number of Distinct Values

1 code implementation6 Feb 2022 Renzhi Wu, Bolin Ding, Xu Chu, Zhewei Wei, Xiening Dai, Tao Guan, Jingren Zhou

We derive conditions of the learning framework under which the learned model is workload agnostic, in the sense that the model/estimator can be trained with synthetically generated training data, and then deployed into any data warehouse simply as, e. g., user-defined functions (UDFs), to offer efficient (within microseconds on CPU) and accurate NDV estimations for unseen tables and workloads.

Demonstration of Panda: A Weakly Supervised Entity Matching System

no code implementations21 Jun 2021 Renzhi Wu, Prem Sakala, Peng Li, Xu Chu, Yeye He

Panda's IDE includes many novel features purpose-built for EM, such as smart data sampling, a builtin library of EM utility functions, automatically generated LFs, visual debugging of LFs, and finally, an EM-specific labeling model.

Management

Nearest Neighbor Classifiers over Incomplete Information: From Certain Answers to Certain Predictions

1 code implementation11 May 2020 Bojan Karlaš, Peng Li, Renzhi Wu, Nezihe Merve Gürel, Xu Chu, Wentao Wu, Ce Zhang

Machine learning (ML) applications have been thriving recently, largely attributed to the increasing availability of data.

BIG-bench Machine Learning

Real Time Pattern Matching with Dynamic Normalization

1 code implementation27 Dec 2019 Renzhi Wu, Sergey Sukhanov, Christian Debes

Pattern matching in time series data streams is considered to be an essential data mining problem that still stays challenging for many practical scenarios.

Databases Multimedia

ZeroER: Entity Resolution using Zero Labeled Examples

1 code implementation16 Aug 2019 Renzhi Wu, Sanya Chaba, Saurabh Sawlani, Xu Chu, Saravanan Thirumuruganathan

We investigate an important problem that vexes practitioners: is it possible to design an effective algorithm for ER that requires Zero labeled examples, yet can achieve performance comparable to supervised approaches?

Entity Resolution

GOGGLES: Automatic Image Labeling with Affinity Coding

1 code implementation11 Mar 2019 Nilaksh Das, Sanya Chaba, Renzhi Wu, Sakshi Gandhi, Duen Horng Chau, Xu Chu

We build the GOGGLES system that implements affinity coding for labeling image datasets by designing a novel set of reusable affinity functions for images, and propose a novel hierarchical generative model for class inference using a small development set.

Few-Shot Learning

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