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Ziqi Yao

dblp:351/4605 · DBLP profile ↗
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1ranked-venue papers
1as first author
1since 2021 · last 2024
0009-0009-5651-1831ORCID · reported

Domains — the database's venue-derived domains; a paper can count in several

Artificial intelligence and machine learning · 1 · 1 first-author · 1 since 2021Databases, data management, data science and information retrieval · 1 · 1 first-author · 1 since 2021

Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.

Theoretical computer science
1 paper
Algorithms and data structures · 70% Computational complexity · 30%

Topics — the 4 heaviest of 4, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Computational complexity › algebraic complexity › matrix multiplication
approximate matrix multiplication
0.812024
Approximate Matrix Multiplication over Sliding Windows · KDD 2024
Algorithms and data structures › data streams › streaming algorithms
sliding window model
0.812024
Approximate Matrix Multiplication over Sliding Windows · KDD 2024
Algorithms and data structures › data streams
streaming algorithms
0.812024
Approximate Matrix Multiplication over Sliding Windows · KDD 2024
Algorithms and data structures › numerical linear algebra › matrix factorization
singular value decomposition
0.212024
Approximate Matrix Multiplication over Sliding Windows · KDD 2024

Methods — techniques the papers use, named apart from their topics

deterministic algorithm · 0.8approximate singular value decomposition · 0.8
YearPublicationVenuePosition
2024 Approximate Matrix Multiplication over Sliding Windows
abstract
Large-scale streaming matrix multiplication is very common in various applications, sparking significant interest in develop efficient algorithms for approximate matrix multiplication (AMM) over streams. In addition, many practical scenarios require to process time-sensitive data and aim to compute matrix multiplication for most recent columns of the data matrices rather than the entire matrices, which motivated us to study efficient AMM algorithms over sliding windows. In this paper, we present two novel deterministic algorithms for this problem and provide corresponding error guarantees. We further reduce the space and time costs of our methods for sparse matrices by performing an approximate singular value decomposition which can utilize the sparsity of matrices. Extensive experimental results on both synthetic and real-world datasets validate our theoretical analysis and highlight the efficiency of our methods.
Ziqi Yao, Lianzhi Li, Mingsong Chen 0001, Xian Wei, Cheng Chen 0015
KDD1