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- Hwanjo Yu, Jiawei Han, Kevin Chen-Chuan Chang
- KDD
- 2002

Web page classification is one of the essential techniques for Web mining. Specifically, classifying Web pages of a user-interesting class is the first step of mining interesting information from the Web. However, constructing a classifier for an interesting class requires laborious pre-processing such as collecting positive and negative training examples.… (More)

- Wook-Shin Han, Sangyeon Lee, +4 authors Hwanjo Yu
- KDD
- 2013

Graphs are used to model many real objects such as social networks and web graphs. Many real applications in various fields require efficient and effective management of large-scale graph structured data. Although distributed graph engines such as GBase and Pregel handle billion-scale graphs, the user needs to be skilled at managing and tuning a distributed… (More)

- Hwanjo Yu, Jiong Yang, Jiawei Han
- KDD
- 2003

Support vector machines (SVMs) have been promising methods for classification and regression analysis because of their solid mathematical foundations which convery several salient properties that other methods hardly provide. However, despite the prominent properties of SVMs, they are not as favored for large-scale data mining as for pattern recognition or… (More)

- Hwanjo Yu, Jiawei Han, Kevin Chen-Chuan Chang
- IEEE Transactions on Knowledge and Data…
- 2004

Web page classification is one of the essential techniques for Web mining because classifying Web pages of an interesting class is often the first step of mining the Web. However, constructing a classifier for an interesting class requires laborious preprocessing such as collecting positive and negative training examples. For instance, in order to construct… (More)

- Hwanjo Yu, Xiaoqian Jiang, Jaideep Vaidya
- SAC
- 2006

Traditional Data Mining and Knowledge Discovery algorithms assume free access to data, either at a centralized location or in federated form. Increasingly, privacy and security concerns restrict this access, thus derailing data mining projects. What we need is distributed knowledge discovery that is sensitive to this problem. The key is to obtain valid… (More)

- Chao Liu, Xifeng Yan, Hwanjo Yu, Jiawei Han, Philip S. Yu
- SDM
- 2005

Analyzing the executions of a buggy software program is essentially a data mining process. Although many interesting methods have been developed to trace crashing bugs (such as memory violation and core dumps), it is still difficult to analyze noncrashing bugs (such as logical errors). In this paper, we develop a novel method to classify the structured… (More)

- Jinha Kim, Wook-Shin Han, Sangyeon Lee, Kyungyeol Park, Hwanjo Yu
- SIGMOD Conference
- 2014

Graph triangulation, which finds all triangles in a graph, has been actively studied due to its wide range of applications in the network analysis and data mining. With the rapid growth of graph data size, disk-based triangulation methods are in demand but little researched. To handle a large-scale graph which does not fit in memory, we must iteratively… (More)

- Hwanjo Yu, Jaideep Vaidya, Xiaoqian Jiang
- PAKDD
- 2006

Classical data mining algorithms implicitly assume complete access to all data, either in centralized or federated form. However, privacy and security concerns often prevent sharing of data, thus derailing data mining projects. Recently , there has been growing focus on finding solutions to this problem. Several algorithms have been proposed that do… (More)

- Hwanjo Yu, Jiong Yang, Jiawei Han
- 2003

Support vector machine (SVM) has been a promising method for classification and regression analysis because of its solid mathematical foundation which conveys several salient properties that other methods do not provide. However, despite the prominent properties of SVM, it is not as favored for large-scale data mining as for pattern recognition or machine… (More)

- Jaideep Vaidya, Hwanjo Yu, Xiaoqian Jiang
- Knowl. Inf. Syst.
- 2008