Proceedings of the 20th ACM international conference on Multimedia最新文献_第10页

Visual query attributes suggestion 可视化查询属性建议

Proceedings of the 20th ACM international conference on Multimedia Pub Date : 2012-10-29 DOI: 10.1145/2393347.2396334

Jingwen Bian, Zhengjun Zha, Hanwang Zhang, Q. Tian, Tat-Seng Chua

引用次数: 6

Session details: Full paper session 7: visual search 会议详情:完整的论文会议7:视觉搜索

Proceedings of the 20th ACM international conference on Multimedia Pub Date : 2012-10-29 DOI: 10.1145/3246400

Q. Tian

引用次数: 0

Scenario-driven interactive panorama video delivery: promptly watch and share enjoyable parts of an event 场景驱动的交互式全景视频交付:及时观看并分享活动的精彩部分

Proceedings of the 20th ACM international conference on Multimedia Pub Date : 2012-10-29 DOI: 10.1145/2393347.2396456

D. Ochi, H. Kimata, H. Noto, Akira Kojima

引用次数: 2

Markov-based image forensics for photographic copying from printed picture 基于马尔可夫的图像鉴证技术用于打印照片的摄影复制

Proceedings of the 20th ACM international conference on Multimedia Pub Date : 2012-10-29 DOI: 10.1145/2393347.2396396

Jing Yin, Yanmei Fang

引用次数: 24

Jetway: minimizing costs on inter-datacenter video traffic Jetway:最大限度地降低数据中心间视频流量的成本

Proceedings of the 20th ACM international conference on Multimedia Pub Date : 2012-10-29 DOI: 10.1145/2393347.2393388

Yuan Feng, Baochun Li, Bo Li

{"title":"Jetway: minimizing costs on inter-datacenter video traffic","authors":"Yuan Feng, Baochun Li, Bo Li","doi":"10.1145/2393347.2393388","DOIUrl":"https://doi.org/10.1145/2393347.2393388","url":null,"abstract":"It is typical for video streaming service providers (such as NetFlix) to rely on services from cloud providers (such as Amazon), in order to build a scalable video streaming platform with high availability. The trend is largely driven by the fact that cloud providers deploy a number of datacenters inter-connected by high-capacity links, spanning different geographical regions. Video traffic across datacenters, such as video replication and transit server-to-customer video serving, constitutes a large portion of a cloud provider's inter-datacenter traffic. Charged by ISPs, such inter-datacenter video traffic incurs substantial operational costs to a cloud provider. In this paper, we argue that costs incurred by such inter-datacenter video traffic can be reduced or even minimized by carefully choosing paths, and by assigning flow rates on each inter-datacenter link along every path. We present Jetway, a new set of algorithms designed to minimize cloud providers' operational costs on inter-datacenter video traffic, by optimally routing video flows in an online fashion. Algorithms in Jetway are designed by following a methodical approach based on an in-depth theoretical analysis. As a highlight of this paper, we have built a real-world system framework to implement and deploy Jetway in the Amazon EC2 datacenters. With both simulations and real-world experiments using our implementation, we show that Jetway effectively helps transmitting videos across datacenters with reduced costs to cloud providers and satisfactory real-world performance.","PeriodicalId":212654,"journal":{"name":"Proceedings of the 20th ACM international conference on Multimedia","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134099540","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: 50

Scalable mining of small visual objects 小型可视对象的可扩展挖掘

Proceedings of the 20th ACM international conference on Multimedia Pub Date : 2012-10-29 DOI: 10.1145/2393347.2393431

Pierre Letessier, Olivier Buisson, A. Joly

{"title":"Scalable mining of small visual objects","authors":"Pierre Letessier, Olivier Buisson, A. Joly","doi":"10.1145/2393347.2393431","DOIUrl":"https://doi.org/10.1145/2393347.2393431","url":null,"abstract":"This paper presents a scalable method for automatically discovering frequent visual objects in large multimedia collections even if their size is very small. It first formally revisits the problem of mining or discovering such objects, and then generalizes two kinds of existing methods for probing candidate object seeds: weighted adaptive sampling and hashing-based methods. The idea is that the collision frequencies obtained with hashing-based methods can actually be converted into a prior probability density function given as input to a weighted adaptive sampling algorithm. This allows for an evaluation of any hashing scheme effectiveness in a more generalized way, and a comparison with other priors, e.g. guided by visual saliency concerns. We then introduce a new hashing strategy, working first at the visual level, and then at the geometric level. This strategy allows us to integrate weak geometric constraints into the hashing phase itself and not only neighborhood constraints as in previous works. Experiments conducted on a new dataset introduced in this paper will show that using this new hashing-based prior allows a drastic reduction of the number of tentative probes required to discover small objects instantiated several times in a large dataset.","PeriodicalId":212654,"journal":{"name":"Proceedings of the 20th ACM international conference on Multimedia","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123886004","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: 32

Human action recognition and retrieval using sole depth information 基于深度信息的人体动作识别与检索

Proceedings of the 20th ACM international conference on Multimedia Pub Date : 2012-10-29 DOI: 10.1145/2393347.2396381

Yan-Ching Lin, Min-Chun Hu, Wen-Huang Cheng, Yung-Huan Hsieh, Hong-Ming Chen

引用次数: 86

Memorable basis: towards human-centralized sparse representation 可记忆基础:向以人为中心的稀疏表示方向发展

Proceedings of the 20th ACM international conference on Multimedia Pub Date : 2012-10-29 DOI: 10.1145/2393347.2396306

Xiaoshuai Sun, H. Yao

引用次数: 0

Propagation-based social-aware replication for social video contents 基于传播的社交视频内容社交意识复制

Proceedings of the 20th ACM international conference on Multimedia Pub Date : 2012-10-29 DOI: 10.1145/2393347.2393359

Zhi Wang, Lifeng Sun, Xiangwen Chen, Wenwu Zhu, Jiangchuan Liu, Minghua Chen, Shiqiang Yang

{"title":"Propagation-based social-aware replication for social video contents","authors":"Zhi Wang, Lifeng Sun, Xiangwen Chen, Wenwu Zhu, Jiangchuan Liu, Minghua Chen, Shiqiang Yang","doi":"10.1145/2393347.2393359","DOIUrl":"https://doi.org/10.1145/2393347.2393359","url":null,"abstract":"Online social network has reshaped the way how video contents are generated, distributed and consumed on today's Internet. Given the massive number of videos generated and shared in online social networks, it has been popular for users to directly access video contents in their preferred social network services. It is intriguing to study the service provision of social video contents for global users with satisfactory quality-of-experience. In this paper, we conduct large-scale measurement of a real-world online social network system to study the propagation of the social video contents. We have summarized important characteristics from the video propagation patterns, including social locality, geographical locality and temporal locality. Motivated by the measurement insights, we propose a propagation-based social-aware replication framework using a hybrid edge-cloud and peer-assisted architecture, namely PSAR, to serve the social video contents. Our replication strategies in PSAR are based on the design of three propagation-based replication indices, including a geographic influence index and a content propagation index to guide how the edge-cloud servers backup the videos, and a social influence index to guide how peers cache the videos for their friends. By incorporating these replication indices into our system design, PSAR has significantly improved the replication performance and the video service quality. Our trace-driven experiments further demonstrate the effectiveness and superiority of PSAR, which improves the local download ratio in the edge-cloud replication by 30%, and the local cache hit ratio in the peer-assisted replication by 40%, against traditional approaches.","PeriodicalId":212654,"journal":{"name":"Proceedings of the 20th ACM international conference on Multimedia","volume":"83 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127971252","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: 87

Parsing collective behaviors by hierarchical model with varying structure 用变结构的层次模型解析集体行为

Proceedings of the 20th ACM international conference on Multimedia Pub Date : 2012-10-29 DOI: 10.1145/2393347.2396389

Cong Zhang, Xiaokang Yang, Jun Zhu, Weiyao Lin

引用次数: 5