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Challenges of Feature Selection for Big Data Analytics
Jundong Li, Huan Liu
We are surrounded by huge amounts of large-scale high dimensional data. It is desirable to reduce the dimensionality of data for many learning tasks due to the curse of dimensional…
SlangSD: Building and Using a Sentiment Dictionary of Slang Words for Short-Text Sentiment Classification
Liang Wu, Fred Morstatter, Huan Liu
Sentiment in social media is increasingly considered as an important resource for customer segmentation, market understanding, and tackling other socio-economic issues. However, se…
Signed Link Analysis in Social Media Networks
Ghazaleh Beigi, Jiliang Tang, Huan Liu
Numerous real-world relations can be represented by signed networks with positive links (e.g., trust) and negative links (e.g., distrust). Link analysis plays a crucial role in und…
Feature Selection: A Data Perspective
Jundong Li, Kewei Cheng, Suhang Wang +4
Feature selection, as a data preprocessing strategy, has been proven to be effective and efficient in preparing data (especially high-dimensional data) for various data mining and…