Ding, Bolin. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2007. / Includes bibliographical references (leaves 53-56). / Abstracts in English and Chinese. / Abstract --- p.i / Acknowledgement --- p.ii / Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- Overview of Research --- p.4 / Chapter 1.2 --- Summary of Results and Thesis Outline --- p.6 / Chapter 2 --- Problem Statement --- p.7 / Chapter 3 --- Literature Review --- p.10 / Chapter 3.1 --- Hardness Results --- p.10 / Chapter 3.2 --- Approximation Algorithms --- p.11 / Chapter 3.2.1 --- Spanning and Cleanup --- p.11 / Chapter 3.2.2 --- d-Star Tree or d-Level Tree --- p.11 / Chapter 3.2.3 --- Randomized Rounding --- p.12 / Chapter 3.3 --- Existing Systems --- p.13 / Chapter 3.3.1 --- RIU (Retrieve Information Unit) --- p.14 / Chapter 3.3.2 --- BANKS --- p.14 / Chapter 3.4 --- Summary --- p.16 / Chapter 4 --- Algorithm Based on Height-Bounded Trees --- p.17 / Chapter 4.1 --- Naive Dynamic Programming Algorithm --- p.19 / Chapter 4.2 --- Performance Ratio and Complexity --- p.23 / Chapter 5 --- Best-First Dynamic Programming Algorithm --- p.26 / Chapter 5.1 --- An Efficient Best-First Algorithm --- p.28 / Chapter 5.2 --- Time/Space Complexity --- p.35 / Chapter 5.3 --- Finding Top-k Group Steiner Trees --- p.36 / Chapter 5.4 --- Other Important Issues --- p.38 / Chapter 5.4.1 --- Comparison with an Unpublished Work --- p.39 / Chapter 5.4.2 --- General Cost Functions --- p.40 / Chapter 5.4.3 --- Keyword Queries with Logical Operators --- p.41 / Chapter 5.4.4 --- Handling Directed Graph --- p.42 / Chapter 5.4.5 --- Graph Size and Graph Maintenance --- p.42 / Chapter 5.4.6 --- Indexing and Pruning Strategy --- p.43 / Chapter 6 --- Experimental Studies --- p.45 / Chapter 6.1 --- Exp-1 Scalability --- p.46 / Chapter 6.2 --- Exp-2 Number of Keywords --- p.48 / Chapter 6.3 --- Exp-3 GST-k Testing --- p.49 / Chapter 6.4 --- Exp-4 MDB (A Directed Graph Dataset) --- p.50 / Chapter 7 --- Conclusions --- p.51 / Bibliography --- p.53
| Identifer | oai:union.ndltd.org:cuhk.edu.hk/oai:cuhk-dr:cuhk_326052 |
| Date | January 2007 |
| Contributors | Ding, Bolin., Chinese University of Hong Kong Graduate School. Division of Systems Engineering and Engineering Management. |
| Source Sets | The Chinese University of Hong Kong |
| Language | English, Chinese |
| Detected Language | English |
| Type | Text, bibliography |
| Format | print, vii, 56 leaves : ill. ; 30 cm. |
| Rights | Use of this resource is governed by the terms and conditions of the Creative Commons “Attribution-NonCommercial-NoDerivatives 4.0 International” License (http://creativecommons.org/licenses/by-nc-nd/4.0/) |
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