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Saisai Yang

dblp:273/0473 · DBLP profile ↗
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2ranked-venue papers
0as first author
2since 2021 · last 2023
0000-0003-4461-5990ORCID · corroborated

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

Artificial intelligence and machine learning · 1 · 1 since 2021Databases, data management, data science and information retrieval · 1 · 1 since 2021Applied, interdisciplinary, general and emerging computing · 1 · 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.

Databases, data mining, and information retrieval
1 paper
Data mining · 100%

Topics — the 2 heaviest of 2, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Data mining › feature engineering
automated feature engineering
0.712023
Catch: Collaborative Feature Set Search for Automated Feature Engineering · WWW 2023
Data mining › tabular data
tabular data mining
0.212023
Catch: Collaborative Feature Set Search for Automated Feature Engineering · WWW 2023

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

hierarchical reinforcement learning · 0.7collaborative exploration and exploitation · 0.7
YearPublicationVenuePosition
2023 Catch: Collaborative Feature Set Search for Automated Feature Engineering
abstract
Feature engineering often plays a crucial role in building mining systems for tabular data, which traditionally requires experienced human experts to perform. Thanks to the rapid advances in reinforcement learning, it has offered an automated alternative, i.e. automated feature engineering (AutoFE). In this work, through scrutiny of the prior AutoFE methods, we characterize several research challenges that remained in this regime, concerning system-wide efficiency, efficacy, and practicality toward production. We then propose Catch, a full-fledged new AutoFE framework that comprehensively addresses the aforementioned challenges. The core to Catch composes a hierarchical-policy reinforcement learning scheme that manifests a collaborative feature engineering exploration and exploitation grounded on the granularity of the whole feature set. At a higher level of the hierarchy, a decision-making module controls the post-processing of the attained feature engineering transformation. We extensively experiment with Catch on 26 academic standardized tabular datasets and 9 industrialized real-world datasets. Measured by numerous metrics and analyses, Catch establishes a new state-of-the-art, from perspectives performance, latency as well as its practicality towards production. Source code1 can be found at https://github.com/1171000709/Catch.
Guoshan Lu, Haobo Wang 0001, Saisai Yang, Guozheng Yang, Cheng Zang, Gang Chen 0001, Junbo Zhao 0002
WWW3
2023 Medicine-Shelf matching strategy based on Bayesian convolutional neural network with fuzzy analytic hierarchy process
Saisai Yang, Zhongyu Ma, Chunming Kang
Expert Syst. Appl.2