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  1. No Access

    Article

    Optimal location query based on k nearest neighbours

    Optimal location query in road networks is a basic operation in the location intelligence applications. Given a set of clients and servers on a road network, the purpose of optimal location query is to obtain ...

    Yubao Liu, Zitong Chen, Ada Wai-Chee Fu in Frontiers of Computer Science (2021)

  2. No Access

    Chapter and Conference Paper

    LSimRank: Node Similarity in a Labeled Graph

    The notion of node similarity is useful in many real-world applications. Many existing similarity measurements such as SimRank and its variants have been proposed. Among these measurements, most capture the st...

    Yang Wu, Ada Wai-Chee Fu, Cheng Long, Zitong Chen in Web and Big Data (2020)

  3. No Access

    Reference Work Entry In depth

    Query by Humming

    Yingyi Bu, Raymond Chi-Wing Wong, Ada Wai-Chee Fu in Encyclopedia of Database Systems (2018)

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    Chapter and Conference Paper

    Counting Edges and Triangles in Online Social Networks via Random Walk

    Online social network (OSN) analysis has attracted much attention in recent years. Edge and triangle counts are both fundamental properties in OSNs. However, for many OSNs, one can only access parts of the net...

    Yang Wu, Cheng Long, Ada Wai-Chee Fu, Zitong Chen in Web and Big Data (2017)

  5. No Access

    Living Reference Work Entry In depth

    Query by Humming

    Yingyi Bu, Raymond Chi-Wing Wong, Ada Wai-Chee Fu in Encyclopedia of Database Systems

  6. No Access

    Chapter and Conference Paper

    Community Based Information Dissemination

    Given a social network, we study the problem of finding \(k\) seeds that maximize the dissemination of information. B...

    Zhengwei Yang, Ada Wai-Chee Fu, Yanyan Xu, Silu Huang in Databases Theory and Applications (2015)

  7. No Access

    Article

    Maximizing bichromatic reverse nearest neighbor for L p -norm in two- and three-dimensional spaces

    Bichromatic reverse nearest neighbor (BRNN) has been extensively studied in spatial database literature. In this paper, we study a related problem called MaxBRNN: find an optimal region that maximizes the size...

    Raymond Chi-Wing Wong, M. Tamer Özsu, Ada Wai-Chee Fu, Philip S. Yu in The VLDB Journal (2011)

  8. No Access

    Article

    STAIRS: Towards efficient full-text filtering and dissemination in DHT environments

    Nowadays “live” content, such as weblog, wikipedia, and news, is ubiquitous in the Internet. Providing users with relevant content in a timely manner becomes a challenging problem. Differing from Web search te...

    Weixiong Rao, Lei Chen, Ada Wai-Chee Fu in The VLDB Journal (2011)

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    Article

    Fast graph query processing with a low-cost index

    This paper studies the problem of processing supergraph queries, that is, given a database containing a set of graphs, find all the graphs in the database of which the query graph is a supergraph. Existing works ...

    James Cheng, Yi** Ke, Ada Wai-Chee Fu, Jeffrey Xu Yu in The VLDB Journal (2011)

  10. No Access

    Chapter

    Other Data Types

    In addition to relational tables and graphs, there are other kinds of data such as spatial and transactional data. In this chapter, we describe privacy models and anonymization techniques over theses data types.

    Raymond Chi-Wing Wong, Ada Wai-Chee Fu in Privacy-Preserving Data Publishing (2010)

  11. No Access

    Chapter

    Introduction

    Privacy preservation has become a major issue in many data mining applications. When a data set is released to other parties for data mining, privacy-preserving techniques are often required to reduce the poss...

    Raymond Chi-Wing Wong, Ada Wai-Chee Fu in Privacy-Preserving Data Publishing (2010)

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    Chapter and Conference Paper

    Mining N-most Interesting Itemsets

    Previous methods on mining association rules require users to input a minimum support threshold. However, there can be too many or too few resulting rules if the threshold is set inappropriately. It is difficu...

    Ada Wai-chee Fu, Renfrew Wang-wai Kwong, Jian Tang in Foundations of Intelligent Systems (2010)

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    Chapter

    Graph Data

    In previous chapters, we studied the privacy issues of publishing relational tables. In this chapter, we consider the same issues in publishing graph data. Graph data has emerged as a significant topic in rece...

    Raymond Chi-Wing Wong, Ada Wai-Chee Fu in Privacy-Preserving Data Publishing (2010)

  14. No Access

    Chapter

    Future Research Directions

    Privacy-preserving data publishing is a promising research area since individual privacy has become a major concern. In this book, we first discussed a variety of anonymization techniques over traditional rela...

    Raymond Chi-Wing Wong, Ada Wai-Chee Fu in Privacy-Preserving Data Publishing (2010)

  15. No Access

    Chapter

    Fundamental Concepts

    In this chapter, we discuss some fundamental concepts used in anonymizing data. In order to better describe the concepts, we illustrate them using the relational model of data.

    Raymond Chi-Wing Wong, Ada Wai-Chee Fu in Privacy-Preserving Data Publishing (2010)

  16. No Access

    Chapter

    Multiple-Time Data Publishing

    In the previous chapter, we studied how to anonymize data when they are published only once. However, in practice, a data owner typically publishes data repeatedly over time. One straightforward method to addr...

    Raymond Chi-Wing Wong, Ada Wai-Chee Fu in Privacy-Preserving Data Publishing (2010)

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    Book

  18. No Access

    Chapter

    One-Time Data Publishing

    In Chapter 2, we discussed some fundamental concepts of data publishing. In this chapter, we describe the details of one-time data publishing based on these concepts.

    Raymond Chi-Wing Wong, Ada Wai-Chee Fu in Privacy-Preserving Data Publishing (2010)

  19. No Access

    Reference Work Entry In depth

    Query by Humming

    Yingyi Bu, Raymond Chi-Wing Wong, Ada Wai-Chee Fu in Encyclopedia of Database Systems (2009)

  20. Chapter and Conference Paper

    Workshop Organizers’ Message

    International Workshop on Privacy-Preserving Data Analysis (PPDA) 2009 took place at Brisbane, Australia on 21st April, 2009. There were two sessions for this workshop with 2 paper presentations in the first s...

    Raymond Chi-Wing Wong, Ada Wai-Chee Fu in Database Systems for Advanced Applications (2009)

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