Proceedings Seventeenth IEEE Symposium on Reliable Distributed Systems (Cat. No.98CB36281)最新文献

The relative overhead of piggybacking in causal message logging protocols 因果消息日志协议中承载的相对开销

Proceedings Seventeenth IEEE Symposium on Reliable Distributed Systems (Cat. No.98CB36281) Pub Date : 1998-10-20 DOI: 10.1109/RELDIS.1998.740522

K. Bhatia, K. Marzullo, L. Alvisi

引用次数: 15

An active transcoding proxy to support mobile web access 支持移动web访问的活动转码代理

Proceedings Seventeenth IEEE Symposium on Reliable Distributed Systems (Cat. No.98CB36281) Pub Date : 1998-10-20 DOI: 10.1109/RELDIS.1998.740482

H. Bharadvaj, A. Joshi, S. Auephanwiriyakul

引用次数: 158

An object relational database for brain aging research 一个用于脑老化研究的对象关系数据库

Proceedings Seventeenth IEEE Symposium on Reliable Distributed Systems (Cat. No.98CB36281) Pub Date : 1998-10-20 DOI: 10.1109/RELDIS.1998.740544

Taehyung Wang, P. Sheu, Brian J Cummings, C. Cotman

引用次数: 0

Survivable consensus objects 可生存的共识对象

Proceedings Seventeenth IEEE Symposium on Reliable Distributed Systems (Cat. No.98CB36281) Pub Date : 1998-10-20 DOI: 10.1109/RELDIS.1998.740509

D. Malkhi, M. Reiter

引用次数: 12

Pixel level interleaving schemes for robust image communication 鲁棒图像通信的像素级交错方案

Proceedings Seventeenth IEEE Symposium on Reliable Distributed Systems (Cat. No.98CB36281) Pub Date : 1998-10-20 DOI: 10.1109/RELDIS.1998.740540

R. Hasimoto-Beltrán, A. Khokhar

{"title":"Pixel level interleaving schemes for robust image communication","authors":"R. Hasimoto-Beltrán, A. Khokhar","doi":"10.1109/RELDIS.1998.740540","DOIUrl":"https://doi.org/10.1109/RELDIS.1998.740540","url":null,"abstract":"Interleaving schemes have proven to be an important mechanism in reducing the effect of network errors on image transmission. Current interleaving schemes spatially decorrelate neighboring image blocks by putting them into packets that are a long way apart from each other in the transmission sequence. Most of the existing schemes, while achieving good performance on random packet losses, do not work well in the case of bursty packet losses. In this paper, we propose two interleaving schemes where the decorrelation process is applied not only at the block level but also at the pixel or coefficient level (i.e. on the information within the blocks) in the compressed domain. The decorrelation is achieved via a k-way shuffle of pixels among the blocks and by using the spatial properties of different space-filling curves, where k depends on the total number of blocks in the image. Our results show that in spite of the decorrelation of coefficients in the triangular interleaving scheme, the compression ratio is within 92% to -98% of JPEG standard compression. We also show that, when compared with existing interleaving schemes, our techniques provide improved image quality and a low mean square error in the transmitted images in the presence of random as well as bursty packet losses in networks.","PeriodicalId":376253,"journal":{"name":"Proceedings Seventeenth IEEE Symposium on Reliable Distributed Systems (Cat. No.98CB36281)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127644277","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: 10

Managing network security-a pragmatic approach 管理网络安全——务实的方法

Proceedings Seventeenth IEEE Symposium on Reliable Distributed Systems (Cat. No.98CB36281) Pub Date : 1998-10-20 DOI: 10.1109/RELDIS.1998.740530

R. Falk, Markus Trommer

引用次数: 3

Extending the Coda File System to handle cache misses on isolated clients 扩展Coda文件系统以处理孤立客户端的缓存丢失

Proceedings Seventeenth IEEE Symposium on Reliable Distributed Systems (Cat. No.98CB36281) Pub Date : 1998-10-20 DOI: 10.1109/RELDIS.1998.740519

H. Inamura

引用次数: 2

A data allocation algorithm for distributed hypermedia documents 分布式超媒体文档的数据分配算法

Proceedings Seventeenth IEEE Symposium on Reliable Distributed Systems (Cat. No.98CB36281) Pub Date : 1998-10-20 DOI: 10.1109/RELDIS.1998.740543

Siu-Kai So, I. Ahmad, K. Karlapalem

{"title":"A data allocation algorithm for distributed hypermedia documents","authors":"Siu-Kai So, I. Ahmad, K. Karlapalem","doi":"10.1109/RELDIS.1998.740543","DOIUrl":"https://doi.org/10.1109/RELDIS.1998.740543","url":null,"abstract":"A major cost in executing queries in a distributed database system is the data transfer cost incurred in transferring relations (fragments) accessed by a query from different sites to the site where the query is initiated. The objective of a data allocation algorithm is to locate the fragments at different sites so as to minimize the total data transfer cost incurred in executing a set of queries. This is equivalent to minimizing the average query execution time, which is of primary importance in a wide class of distributed systems. The data allocation problem, however, is NP-complete, and thus requires fast heuristics to generate efficient solutions. The problem becomes more complex in the context of hypermedia documents (Web pages), within which the multimedia data objects (MDOs) need to be synchronized during presentation to the end users. Since the basic problem of data allocation in distributed database systems is NP-complete, we need heuristics which can generate near-optimal MDO allocations. In this paper, we propose a navigational model to represent hypermedia documents and their access behaviour from end users. We also formulate the problem by developing a base-case cost model for the response time, and we design an algorithm to find near-optimal solutions for allocating MDOs of the hypermedia documents while adhering to the synchronization requirements. We compare the algorithmic solution with an exhaustive solution over a set of experiments.","PeriodicalId":376253,"journal":{"name":"Proceedings Seventeenth IEEE Symposium on Reliable Distributed Systems (Cat. No.98CB36281)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132351841","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

Safe and efficient active network programming 安全高效的主动网络编程

Proceedings Seventeenth IEEE Symposium on Reliable Distributed Systems (Cat. No.98CB36281) Pub Date : 1998-10-20 DOI: 10.1109/RELDIS.1998.740484

Scott Thibault, C. Consel, Gilles Muller

引用次数: 63

ROI: an invocation mechanism for replicated objects ROI:用于复制对象的调用机制

Proceedings Seventeenth IEEE Symposium on Reliable Distributed Systems (Cat. No.98CB36281) Pub Date : 1998-10-20 DOI: 10.1109/RELDIS.1998.740471

F. D. Muñoz-Escoí, Pablo Galdámez, J. Bernabéu-Aubán

引用次数: 8