Data Management for Sensor Networks最新文献_第2页

A substrate for in-network sensor data integration 用于网络内传感器数据集成的基板

Data Management for Sensor Networks Pub Date : 2008-08-24 DOI: 10.1145/1402050.1402059

Svilen R. Mihaylov, Marie Jacob, Z. Ives, S. Guha

引用次数: 24

Probabilistic processing of interval-valued sensor data 区间值传感器数据的概率处理

Data Management for Sensor Networks Pub Date : 2008-08-24 DOI: 10.1145/1402050.1402060

S. Evers, M. Fokkinga, P. Apers

引用次数: 4

An energy-efficient data-driven power management for wireless sensor networks 无线传感器网络的节能数据驱动电源管理

Data Management for Sensor Networks Pub Date : 2008-08-24 DOI: 10.1145/1402050.1402056

Mingjian Tang, Jinli Cao

引用次数: 1

The d-hop k-data coverage query problem in wireless sensor networks 无线传感器网络中d跳k数据覆盖查询问题

Data Management for Sensor Networks Pub Date : 2008-08-24 DOI: 10.1145/1402050.1402054

Maria Kontaki, Dimitrios Katsaros, Y. Manolopoulos

引用次数: 0

Stream-based macro-programming of wireless sensor, actuator network applications with SOSNA 基于流的无线传感器宏编程，执行器网络应用与SOSNA

Data Management for Sensor Networks Pub Date : 2008-08-24 DOI: 10.1145/1402050.1402061

M. Karpinski, V. Cahill

引用次数: 10

Dynamic balanced storage in wireless sensor networks 无线传感器网络中的动态均衡存储

Data Management for Sensor Networks Pub Date : 2007-09-24 DOI: 10.1145/1286380.1286383

Yongxuan Lai, Hong Chen, Yufeng Wang

{"title":"Dynamic balanced storage in wireless sensor networks","authors":"Yongxuan Lai, Hong Chen, Yufeng Wang","doi":"10.1145/1286380.1286383","DOIUrl":"https://doi.org/10.1145/1286380.1286383","url":null,"abstract":"Data-centric storage is an effective and important technique in the wireless sensor networks. It stores the sensing data according to their values by mapping them to some point in the network in order to avoid routing all the values outside the network and flooding the queries. However, in most data-centric storage schemes, there is a \"hotspot\" problem due to the skewness of data and randomness of the mapping functions. Large number of sensor readings (events) may be routed to the same point by the predefined hashed function. In this paper, we propose a new Dynamic BAlanced data-centric Storage (DBAS) scheme, a cooperative strategy between the base station and the in-network processing in wireless sensor network. Our scheme, which utilizes the rich resources in the base station and is aware of the data distributions of the network, dynamically adjusts the mappings from readings to the storage points to balance the storage and workload in the network, as well as to reduce the cost of storing these readings. Moreover, it takes advantage of perimeter routing algorithm of the GPSR routing protocol to store multiple copies of readings to improve the robustness of the network with little overhead. Simulation results show that DBAS is more balanced and energy efficient than the traditional data-centric storage mechanism in wireless sensor network.","PeriodicalId":281465,"journal":{"name":"Data Management for Sensor Networks","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122449131","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: 17

Declarative temporal data models for sensor-driven query processing 用于传感器驱动的查询处理的声明性时态数据模型

Data Management for Sensor Networks Pub Date : 2007-09-24 DOI: 10.1145/1286380.1286390

Yanif Ahmad, U. Çetintemel

引用次数: 7

A graph-based approach to vehicle tracking in traffic camera video streams 交通摄像机视频流中基于图形的车辆跟踪方法

Data Management for Sensor Networks Pub Date : 2007-09-24 DOI: 10.1145/1286380.1286386

H. H. Shahri, Galileo Namata, Saket Navlakha, A. Deshpande, N. Roussopoulos

{"title":"A graph-based approach to vehicle tracking in traffic camera video streams","authors":"H. H. Shahri, Galileo Namata, Saket Navlakha, A. Deshpande, N. Roussopoulos","doi":"10.1145/1286380.1286386","DOIUrl":"https://doi.org/10.1145/1286380.1286386","url":null,"abstract":"Vehicle tracking has a wide variety of applications from law enforcement to traffic planning and public safety. However, the image resolution of the videos available from most traffic camera systems, make it difficult to track vehicles based on unique identifiers like license plates. In many cases, vehicles with similar attributes are indistinguishable from one another due to image quality issues. Often, network bandwidth and power constraints limit the frame rate, as well. In this paper, we discuss the challenges of performing vehicle tracking queries over video streams from ubiquitous traffic cameras. We identify the limitations of tracking vehicles individually in such conditions and provide a novel graph-based approach using the identity of neighboring vehicles to improve the performance. We evaluate our approach using streaming video feeds from live traffic cameras available on the Internet. The results show that vehicle tracking is feasible, even for low quality and low frame rate traffic cameras. Additionally, exploitation of the attributes of neighboring vehicles significantly improves the performance.","PeriodicalId":281465,"journal":{"name":"Data Management for Sensor Networks","volume":"123 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121587155","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: 11

Imagers as sensors: correlating plant CO2 uptake with digital visible-light imagery 作为传感器的成像仪:将植物二氧化碳吸收与数字可见光图像相关联

Data Management for Sensor Networks Pub Date : 2007-09-24 DOI: 10.1145/1286380.1286387

Josh Hyman, E. Graham, Mark H. Hansen, D. Estrin

引用次数: 7

Data Management for Sensor Networks Pub Date : 2007-09-24 DOI: 10.1145/1286380.1286382

Shili Xiang, H. Lim, K. Tan, Yongluan Zhou

{"title":"Similarity-aware query allocation in sensor networks with multiple base stations","authors":"Shili Xiang, H. Lim, K. Tan, Yongluan Zhou","doi":"10.1145/1286380.1286382","DOIUrl":"https://doi.org/10.1145/1286380.1286382","url":null,"abstract":"In this paper, we consider a large scale sensor network comprising multiple, say K, base stations and a large number of wireless sensors. Such an infrastructure is expected to be more energy efficient and scale well with the size of the sensor nodes. To support a large number of queries, we examine the problem of allocating queries across the base stations to minimize the total data communication cost among the sensors. In particular, we examine similarity-aware techniques that exploit the similarities among queries when allocating queries, so that queries that require data from a common set of sensor nodes are allocated to the same base stations. We first approximate the problem of allocating queries to K base stations as a max-K-cut problem, and adapts an existing solution to our context. However, the scheme only works in a static context, where all queries are known in advance. In order to operate in a dynamic environment with frequent query arrivals and termination, we further propose a novel similarity-aware strategy that allocates queries to base stations one at a time. We also propose several heuristics to order a batch of queries for incremental allocation. We conducted experiments to evaluate our proposed schemes, and our results show that our similarity-aware query allocation schemes can effectively exploit the sharing among queries to greatly reduce the communication cost.","PeriodicalId":281465,"journal":{"name":"Data Management for Sensor Networks","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114606152","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: 7