Proceedings Eighth International Workshop on Research Issues in Data Engineering. Continuous-Media Databases and Applications最新文献

On G-networks and resource allocation in multimedia systems 多媒体系统中的g网络与资源分配

Proceedings Eighth International Workshop on Research Issues in Data Engineering. Continuous-Media Databases and Applications Pub Date : 1998-02-23 DOI: 10.1109/RIDE.1998.658284

E. Gelenbe, H. Shachnai

引用次数: 34

Query by rhythm: an approach for song retrieval in music databases 节奏查询:音乐数据库中歌曲检索的一种方法

Proceedings Eighth International Workshop on Research Issues in Data Engineering. Continuous-Media Databases and Applications Pub Date : 1998-02-23 DOI: 10.1109/RIDE.1998.658288

James C. C. Chen, Arbee L. P. Chen

引用次数: 81

An image retrieval system for distributed environments 分布式环境下的图像检索系统

Proceedings Eighth International Workshop on Research Issues in Data Engineering. Continuous-Media Databases and Applications Pub Date : 1998-02-23 DOI: 10.1109/RIDE.1998.658280

M. Nabil, J. Shepherd, A. Ngu

引用次数: 1

Cost-based media server design 基于成本的媒体服务器设计

Proceedings Eighth International Workshop on Research Issues in Data Engineering. Continuous-Media Databases and Applications Pub Date : 1998-02-23 DOI: 10.1109/RIDE.1998.658281

E. Chang, H. Garcia-Molina

引用次数: 5

Distributed digital library architecture: the key to success for distance learning 分布式数字图书馆架构:远程教育成功的关键

Proceedings Eighth International Workshop on Research Issues in Data Engineering. Continuous-Media Databases and Applications Pub Date : 1998-02-23 DOI: 10.1109/RIDE.1998.658272

W. J. Adams, B. Jansen, Richard Howard

{"title":"Distributed digital library architecture: the key to success for distance learning","authors":"W. J. Adams, B. Jansen, Richard Howard","doi":"10.1109/RIDE.1998.658272","DOIUrl":"https://doi.org/10.1109/RIDE.1998.658272","url":null,"abstract":"Cost cutting and personnel restructuring are forcing organizations to make difficult decisions on where to spend money. Among the areas hit hard by budget cuts are education and training. Academic, industrial, and governmental institutions are all seeking means to leverage technology to improve the timeliness, efficiency, and standardization of their required training. One way to extend budgets while continuing to deliver training is by constructing distributed digital libraries. A distributed digital library consists of material on separate machines connected via a network. The challenge of managing this information is deciding how to store the information and how users will connect, search and retrieve the material. One method, the monolithic library, forces all user interactions through a single, controlling node of the library network. Another is called the distributed library, which hides the actual server architecture by allowing the user to interact with whichever library node is nearest to him. Using the model of the U.S. Army's Army Training Digital Library as an example, this paper discusses challenges and solutions to indexing, searching and retrieving material from globally distributed digital libraries. In particular, this paper compares the costs and benefits of using a monolithic library structure with that of a distributed digital library.","PeriodicalId":199347,"journal":{"name":"Proceedings Eighth International Workshop on Research Issues in Data Engineering. Continuous-Media Databases and Applications","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133498755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

A scalable approach to continuous-media processing 一种可扩展的连续媒体处理方法

Proceedings Eighth International Workshop on Research Issues in Data Engineering. Continuous-Media Databases and Applications Pub Date : 1998-02-23 DOI: 10.1109/RIDE.1998.658282

Dragos Manolescu, K. Nahrstedt

引用次数: 1

Scheduling strategies for mixed workloads in multimedia information servers 多媒体信息服务器中混合工作负载的调度策略

Proceedings Eighth International Workshop on Research Issues in Data Engineering. Continuous-Media Databases and Applications Pub Date : 1998-02-23 DOI: 10.1109/RIDE.1998.658286

G. Nerjes, Peter Muth, M. Paterakis, Y. Romboyannakis, P. Triantafillou, G. Weikum

引用次数: 20

Query processing techniques for multimedia presentation graphs 多媒体表示图的查询处理技术

Proceedings Eighth International Workshop on Research Issues in Data Engineering. Continuous-Media Databases and Applications Pub Date : 1998-02-23 DOI: 10.1109/RIDE.1998.658287

Taekyong Lee, G. Özsoyoglu

引用次数: 4

Scene break detection: a comparison 场景中断检测:一个比较

Proceedings Eighth International Workshop on Research Issues in Data Engineering. Continuous-Media Databases and Applications Pub Date : 1998-02-23 DOI: 10.1109/RIDE.1998.658276

G. Lupatini, C. Saraceno, R. Leonardi

{"title":"Scene break detection: a comparison","authors":"G. Lupatini, C. Saraceno, R. Leonardi","doi":"10.1109/RIDE.1998.658276","DOIUrl":"https://doi.org/10.1109/RIDE.1998.658276","url":null,"abstract":"The automatic organization of video databases according to the semantic content of data is a key aspect for efficient indexing and fast retrieval of audio-visual material. In order to generate indices that can be used to access a video database, a description of each video sequence is necessary. The identification of objects present in a frame and the track of their motion and interaction in space and time, is attractive but not yet very robust. For this reason, since the early 90's, attempts have been applied in trying to segment a video in shots. For each shot a representative frame of the shot, called k-frame, is usually chosen and the video can be analyzed through its k-frames. Even if abrupt scene changes are relatively easy to detect, it is more difficult to identify special effects, such as dissolve, that were operated in the editing stage to merge two shots. Unfortunately, these special effects are normally used to stress the importance of the scene change (from a content point of view), so they are extremely relevant, therefore they should not be missed. It is very important to determine precisely the beginning and the end of the transition in the case of dissolves and fades. In this work, two new parameters are proposed. These characterize the precision of boundaries of special effects when the scene change involves more than two frames. They are combined with the common recall and precision parameters. Three types of algorithms for cut detection are considered: histogram-based, motion-based and contour-based. These algorithms are tested and compared on several video sequences. Results show that the best performance is achieved by the global histogram-based method which uses color information.","PeriodicalId":199347,"journal":{"name":"Proceedings Eighth International Workshop on Research Issues in Data Engineering. Continuous-Media Databases and Applications","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131476776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 91

Performance enhancement using intra-server caching in a continuous media server 在连续媒体服务器中使用服务器内缓存进行性能增强

Proceedings Eighth International Workshop on Research Issues in Data Engineering. Continuous-Media Databases and Applications Pub Date : 1998-02-23 DOI: 10.1109/RIDE.1998.658279

C. Srinilta, A. Choudhary

{"title":"Performance enhancement using intra-server caching in a continuous media server","authors":"C. Srinilta, A. Choudhary","doi":"10.1109/RIDE.1998.658279","DOIUrl":"https://doi.org/10.1109/RIDE.1998.658279","url":null,"abstract":"Continuity of stream playback is the crucial constraint in designing a continuous media server. From a distributed memory architectural model developed earlier, we found that there were many points where the stream capacity of the server could be improved. The stream capacity was usually limited by the storage bottlenecks. Serving streams from memory cache eliminates disk accesses and data transfers between nodes which, in turn, helps relieve those bottlenecks. However, the capacity of the server ultimately depends on client access patterns. Client request assignment has an impact on cache hit ratio as well as workload distribution. It is also the major factor reflecting the server performance. In some cases where lower playback quality at some point in time is acceptable, delays can be added to improve the missed packet rate. This paper proposes various techniques to enhance the server performance and shows their reflections under different circumstances. Some techniques work well together. The best combination improves the capacity of the server by approximately 30%.","PeriodicalId":199347,"journal":{"name":"Proceedings Eighth International Workshop on Research Issues in Data Engineering. Continuous-Media Databases and Applications","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132760032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5