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- Tam T. Nguyen, Siu Cheung Hui, Kuiyu Chang
- Expert Syst. Appl.
- 2012

Mathematical (or math) search is a challenging problem as math expressions are highly symbolic and structured. The vast majority of math search systems that adopt conventional text retrieval… (More)

- Tam T. Nguyen, Kuiyu Chang, Siu Cheung Hui
- CIKM
- 2012

We propose a math-aware search engine that is capable of handling both textual keywords as well as mathematical expressions. Our math feature extraction and representation framework captures the… (More)

- Guimei Liu, Tam T. Nguyen, +6 authors Wei Chen
- KDD
- 2016

A large number of new buyers are often acquired by merchants during promotions. However, many of the attracted buyers are one-time deal hunters, and the promotions may have little long-lasting impact… (More)

- Tam T. Nguyen, Kuiyu Chang, Siu Cheung Hui
- PAKDD
- 2012

We propose a two-view online learning algorithm that utilizes two different views of the same data to achieve something that is greater than the sum of its parts. Our algorithm is an extension of the… (More)

- Tam T. Nguyen, Kuiyu Chang, Siu Cheung Hui
- ECML/PKDD
- 2012

Text categorization has been a popular research topic for years and has become more or less a practical technology. However, there exists little research on math topic classification. Math documents… (More)

- Tam T. Nguyen, Kuiyu Chang, Siu Cheung Hui
- Knowledge and Information Systems
- 2012

In this paper, we study the theoretical properties of the class feature centroid (CFC) classifier by considering the rate of change of each prototype vector with respect to individual dimensions… (More)

- Tam T. Nguyen, Kuiyu Chang, Siu Cheung Hui
- IJCAI
- 2011

We propose a family of Passive-Aggressive Mahalanobis (PAM) algorithms, which are incremental (online) binary classifiers that consider the distribution of data. PAM is in fact a generalization of… (More)

- Tam T. Nguyen, Kuiyu Chang, Siu Cheung Hui
- Proceedings of IEEE International Conference on…
- 2011

Vector space text classification is commonly used in intelligence applications such as email and conversation analysis. In this paper we propose a supervised term weighting scheme called tƒ × KL… (More)

- Tam T. Nguyen, Kuiyu Chang, Siu Cheung Hui
- IEEE 11th International Conference on Data Mining
- 2011

In centroid-based classification, each class is represented by a prototype or centroid document vector that is formed by averaging all member vectors during the training phase. In the prediction… (More)

- Hawre Hosseini, Tam T. Nguyen, Ebrahim Bagheri
- IEEE/ACM International Conference on Advances in…
- 2018

The systematic linking of explicitly-observed phrases within a document to entities of a knowledge base has already been explored in a process known as entity linking. The objective of this paper,… (More)