Search Results for author: Zhixin Zhou

Found 8 papers, 1 papers with code

Proximity Graph Maintenance for Fast Online Nearest Neighbor Search

no code implementations22 Jun 2022 Zhaozhuo Xu, Weijie Zhao, Shulong Tan, Zhixin Zhou, Ping Li

Given a vertex deletion request, we thoroughly investigate solutions to update the connections of the vertex.

Quantization Recommendation Systems

Rate-Optimal Subspace Estimation on Random Graphs

no code implementations NeurIPS 2021 Zhixin Zhou, Fan Zhou, Ping Li, Cun-Hui Zhang

We show that the performance of estimating the connectivity matrix $M$ depends on the sparsity of the graph.

Estimate the Implicit Likelihoods of GANs with Application to Anomaly Detection

1 code implementation20 Apr 2020 Shaogang Ren, Dingcheng Li, Zhixin Zhou, Ping Li

The thriving of deep models and generative models provides approaches to model high dimensional distributions.

Anomaly Detection

On Efficient Retrieval of Top Similarity Vectors

no code implementations IJCNLP 2019 Shulong Tan, Zhixin Zhou, Zhaozhuo Xu, Ping Li

Retrieval of relevant vectors produced by representation learning critically influences the efficiency in natural language processing (NLP) tasks.

BIG-bench Machine Learning Representation Learning +1

Fast Binary Functional Search on Graph

no code implementations27 Sep 2018 Shulong Tan, Zhixin Zhou, Zhaozhuo Xu, Ping Li

As Approximate Nearest Neighbor Search (ANNS) techniques have specifications on metric distances, efficient searching by advanced measures is still an open question.

Open-Ended Question Answering

Optimal Bipartite Network Clustering

no code implementations15 Mar 2018 Zhixin Zhou, Arash A. Amini

The provable algorithm is derived from a general class of pseudo-likelihood biclustering algorithms that employ simple EM type updates.

Clustering Community Detection +1

Analysis of spectral clustering algorithms for community detection: the general bipartite setting

no code implementations12 Mar 2018 Zhixin Zhou, Arash A. Amini

We consider spectral clustering algorithms for community detection under a general bipartite stochastic block model (SBM).

Clustering Community Detection +1

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