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研究生:李建億
研究生(外文):Lee, Chien-I
論文名稱:多媒體資料庫中連續媒體資料的儲存管理之設計與分析
論文名稱(外文):Design and analysis of continuous media storage management for multimedia databases
指導教授:楊維邦楊維邦引用關係
指導教授(外文):Yang Wei-Pang
學位類別:博士
校院名稱:國立交通大學
系所名稱:資訊科學學系
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:1997
畢業學年度:86
語文別:中文
論文頁數:143
中文關鍵詞:資料放置策略連續性媒體磁碟組
外文關鍵詞:data placement strategycontinuous mediamulti-disk drive
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多媒體資料乃是包含文字,影像,動畫,聲音與視訊等各式的集合。而多
媒體資料庫管理系統則是來管理這些多媒體資料。為了提昇資料擷取的效
能,設計良好的儲存結構將是必須的。其設計的重點包括:資料儲存放置
策略以及相關播放動作的建立。"連續性媒體",例如:視訊,需要很大的
頻寬與儲存空間且只有在它被及時地播放時,其蘊含的資訊才有意義。所
以,針對連續性媒體,如何提供連續擷取,隨機存取與互動瀏覽,將是極
大的挑戰。首先﹐我們提出一種無需重組資料的"碰撞解除"法以保證資料
連續擷取的特性。進而﹐為降低資料搬動成本﹐我們改良此法並提出兩
種"延遲"法: 一為"先解決碰撞"法﹐一為"後解決碰撞"法。其次﹐我們提
出一種無需額外資源的"多重取樣"策略以提供隨選視訊系統互動式瀏覽的
需求﹐此法乃是延伸"段落取樣"策略以提供多重物件以不同的速度播放。
再則﹐對一個互動式播放的應用﹐系統必須提供使用者隨時隨意地選擇播
放的內容﹐即使是系統正在播放中。對此﹐我們提出一種僅需記錄少許擷
取資訊的"滑動視窗"法。進而﹐為提供線上互動式播放﹐我們提出了"動
態滑動視窗"法。最後﹐對一些應用﹐諸如: "自我學習"系統﹐使用者可
能快速地瀏覽其所熟悉的部份而緩慢地學習其所不熟的部份。在如此的系
統中﹐所有的資料都是重要且不能被漏失的。因此﹐我們提出一種有效率
的方法以支援此種動態需求頻寬的狀況。
A multimedia database management system manages multimedia data,
where multimedia data is defined as any combination of data in
the form of text, image, animation, sound and video. To improve
the performance for efficient dataaccess in a multimedia
database system, the design of a multimedia storage server,
including storage placement strategies and the implementation of
related operations, is required. A continuous media, like video,
requires high bandwidth and large storage space and conveys
meaning only when presented in time. Therefore, how to support
continuous retrieval, random access and interactive browsing
of multimedia data at its required bandwidth is a challenging
task. First, to guarantee the property of continuous retrieval,
we propose a conflict-resolution approach to supporting random
access without reorganization of the whole data. Moreover, a
deferring approach is proposed to reduce those additional
movement cost at the cost of an additional buffer. Based on this
approach, we develop two strategies: the conflict-resolved-
first-deferring approach and the conflict-resolved-last-
deferring strategy. Second, to support interactive browsing
functions such as the fast forward function in a Video-On-
Demand system, we propose a multi-sampling strategy, which
generalizes the approach of the segment-sampling strategy to
support continuous display of multiple objects at different
display speed rates, simultaneously, without any additional
resources. Third, for an interactive display application, a
system must support users to make any choice of objects for
display even when display has started. To achieve this goal, we
propose a sliding window approach to supporting interactive
display for continuous media, in which we only record a little
necessary information of retrieval of the following subobjects
for display in a sliding window. To further support on-line
interactive display, in which the combination of objects for
display and the branch points for choices are dynamically
determined, we extend the sliding window approach to the dynamic
sliding approach. Finally, for some applications, such as self-
learning system, users may quickly browse some familiar objects
while they will slowing scan some unfamiliar objects. To
completely support such a learning system, no subobjects of the
objects can be omitted and the required bandwidth of each object
must be dynamically increased or decreased depending on the
user''s requirement. Therefore, we propose an efficient approach
to supporting continuous retrieval with dynamic required
bandwidths without reorganizing the whole striped object.
cover
ABSTRACT
TABLE OF CONTENTS
LIST OF FIGURES
Chapter I INTRODUCTION
1.1 Multimedia Storage Server
1.2 Motivations and Contributions
1.3 Organization of the Dissertation
Chapter II A SURVEY OF MULTIMEDLA STORAGE SERVER
2.1 Continuous Retrieval of Multimedia Data
2.2 Random Accesses on Continuous Multimedia Data
2.3 Interactive Browsing on Continuous Multimedia Data
2.4 Buffering
Chapter III A CONFLICT-RESOLUTION APPROACH TO SUPPORTING RANDOM ACCESS
3.1 The Conflict-Tesolution Approach
3.2 Performance Analysis and Simulation Results
3.3 The Deferring Approach
3.4 An Interesting Observation
3.5 The CRFD Strategy
3.6 The CRLD Strategy
3.7 Performance Analysis in the CRLD strategy
3.8 Simulation Results
3.9 Summary
Chapter IV THE MULTI-SAMPLING STRATEGY FOR BROWS-ING DISPLAY
4.1 Background
4.2 The Multi-Sampling Strategy
4.3 Correctness
4.4 Simulation Results
4.5 Summary
Chapter V THE SLIDING WINDOW APPROACH TO SUP-PORTING INTERACTIVE DISPLAY
5.1 The Sliding- Window Approach
5.2 Simulation Results
5.3 Analysis of an Sliding Window Size
5.4 The Dynamic Sliding Window Approach
5.5 Summary
Chapter VI AN EFFICIENT APPROACH TO SUPPORTING DYNAMIC REQUIRED BANDWIDTH
6.1 The Proposed Approach
6.2 Performance Analysis
6.3 Simulation Results
6.4 Summary
Chapter VII CONCLUSIONS
7.1 Summary
7.2 Future Research Directions
BIBLIOGRAPHY
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