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Peer-to-peer databases. Store and host all of your user data or application data in streams to eliminate centralized database servers, blockchains, or local storage. Streams are a backend replacement for storing user-generated content, user activity and history, application data and state, and much more.


Jul 21, 2021· My company has inserted numerical values for certain keys in string format. They can't be converted to integer format for some business reason. Now coming to the query... I am writing a mongo aggre...


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OOI Beng Chin's Publications

S. Wang, B.C.Ooi, A. Tung, L. Xu: Efficient Skyline Query Processing on Peer-to-Peer Networks. 23rd IEEE International Conference on Data Engineering (ICDE), 2007. Christian Bohm, B.C. Ooi, Claudia Plant, Ying Yan: Efficiently Processing Continuous k-NN Queries on Data Streams. 23rd IEEE International Conference on Data Engineering (ICDE), 2007.


OQL Aggregate Functions. The aggregate functions MIN, MAX, COUNT, COUNT over a DISTINCT expression, SUM, SUM over a DISTINCT expression, AVG, AVG over a DISTINCT expression, and GROUP BY are supported. The following sections provide descriptions and limitations (if any) about the aggregate functions, how do they work and how they can be used.


Home Conferences CIKM Proceedings DOLAP '10 Towards OLAP query reformulation in peer-to-peer data warehousing. research-article . Towards OLAP query reformulation in peer-to-peer data warehousing. Share on.


A Grid-Based Approach for Processing Group Activity Log Files p. 175 Design, Implementation, and Evaluation of a Resource Management Multiagent System for a Multimedia Processing Grid p. 187 Towards a Peer-to-Peer Event Broker Grid in a Hybrid Network Environment p. 198 Bioinformatics Data Access Service in the ProGenGrid System p. 211 MSF: A ...


Apr 24, 2021· Robust and efficient aggregate query processing in peer. Robust and efficient aggregate query processing in peer-to-peer networks A P2P network consists of numerous peer nodes that queries in network monitoring...


Jan 06, 2021· Peer-to-peer streaming with the PXIe-5622 IF digitizer. PXIe-5122 High-Resolution Digitizer: The PXIe-5122 is a 100 MS/s, two-channel, 14-bit digitizer that can produce data at up to 200 /s per channel per stream. For peer-to-peer streaming, the digitizer has two writer endpoints that are located on parallel data paths to the onboard memory.


network effects, legal requirements, and technical limitations. Yet, since the birth of the Internet, there have been periods of intense interest in decentralization, including the peer-to-peer systems bonanza of the early and mid 2000s [57, 90, 107] and the current blockchain boom [39, 94, 113]. A rich set of de-


Mar 31, 2007· After processing the message, the "msg c handler" function decides that it needs to send a "Query Response" message back to Peer 1, so it attempts to connect (step 6). Peer 1's main loop, listening for such connections, accepts the connection and starts its separate handler thread (step 7) to receive the actual message data from Peer 2 (step 8).


Location Based Spatial Query Processing In Wireless Broadcast Environments; ... EFFICIENT APPROXIMATE QUERY PROCESSING IN PEER TO PEER NETWORKS; Digital Image Processing Techniques for the Detection and Removal of Cracks in Digitized Paint; ... Key-Aggregate Cryptosystem for Scalable Data Sharing in Cloud Storage – Data Mining and Cloud ...


Mar 12, 2018· This is a poor answer, but I think the root cause is that the conversion between complex ordered dictionaries and Mongo JSON queries in this particular environment has a little tiny bug that affected this particular query.


Mar 27, 2012· Managing multidimensional historical aggregate data in unstructured p2p networks project explains about implementing Peer to a peer-based framework which will support multidimensional historical data.. This project mainly concentrates on two factors firstly combining the amenities of peer to peer network and compressing of data.


But there is little work on processing such query in distributed, in-network inference, such as sensor network. In sensor network, communication is the primary problem because of …


Java IEEE Projects :-. Intrusion Detection in Homogeneous and Heterogeneous Wireless Sensor Networks. Bandwidth Estimation for IEEE 802.11-Based Ad Hoc Networks. Location Based Spatial Query Processing In Wireless Broadcast Environments. Minimizing File Download Time in Stochastic Peer-to-Peer Networks. Rate & Delay Guarantees Provided By Close ...


The present invention is directed to a system and method for administering Peer to Peer (P2P) query messages within a P2P network. The present invention collects a plurality of metrics for each host that it is aware of in a P2P network, most often by a host information or query hit message. The metrics collected aid in determining a set of P2P hosts best able to fulfill a …


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Scattered Code

12 min read Gossip Protocols Gossip protocols, also known as infection or epidemic protocols, are a category of protocols used for peer-to-peer communication that provide additional information about the network which they know about and accept but aren't the authoritative source of. Some distributed systems use peer-to-peer gossip to ensure that information is …


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Staff Profile - USTC

1) Zhen Liao, Daxin Jiang, Enhong Chen, Jian Pei, Huanhuan Cao, Hang Li,Mining Concept Sequences from Large-Scale Search Logs for Context-Aware Query Suggestion, ACM Trans. on Intelligent Systems and Technology, 2011, 9(4) 2) Benefit based cache data placement and update for mobile peer to peer networks, World Wide Web, 2011, 14(3)


1 · mongo aggregate group, match, project, count. 0. I am trying to get an aggregate work Here is a simple json structure. // this is the format of the collection { groupId, timestamp, userId, platform, apiDataId, type, data }


aggregate query processing in peer to peer source code in the code project. ... south deep gold mine owners ... XML Database Migration Is A Project Source Code | 1000 Projects :: download XML Database Migration is a project base paper pdf, source code in .net and project report with ppt.which is ...


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About Us – IJERT

About Us. International Journal of Engineering Research & Technology (IJERT) – registered with ISSN: 2278-0181, is a peer-reviewed, Open Access journal that publishes original research articles as well as review articles monthly – emphasize all major engineering and science aspects that can equally serve all branches of engineering and ...


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Modbus Protocol Specification

provided to allow concurrent processing of master and slave transactions. At the message level, the Modbus protocol still applies the master-slave principle even though the network communication method is peer-to-peer. If a controller originates a message, it does so as a master device, and expects a response from a slave device.


An aggregate interface group uses IEEE 802.1AX link aggregation to combine multiple Ethernet interfaces into a single virtual interface that connects the firewall to another network device or another firewall. An aggregate group increases the bandwidth between peers by load balancing traffic across the combined interfaces.


Astrolabe is implemented using a peer-to-peer protocol, and uses a restricted form of mobile code based on the SQL query language for aggregation. This protocol gives rise to a …


aggregate query processing in peer to peer networks 2013 Peer-to-peer - Wikipedia, the free encyclopedia. A peer-to-peer (P2P) network is a type of decentralized and distributed network architecture in which individual ...


the query source through a wireless ad-hoc peer-to-peer net-work. From the database point of view, the data being col- ... The study of aggregate query processing and mobile ob-jects tracking in sensor networks [2, 4, 7] is very related to ... With our sensor network, snapshot density queries can be periodically initiated from a processing node ...


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WebRTC samples

The code for all samples are available in the GitHub repository. Most ... Controlling peer connectivity. Basic peer connection demo; ... API for processing media. End to end encryption using WebRTC Insertable Streams (Experimental)


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Bitbus

By not supporting the "r" query, Bitbus does not suffer from unnecessary computation, therefore can provide higher quality service. aggregate queries: aggregate queries are not supported since you can crawl to your local machine and run your processing logic there. Again, not supporting this feature helps with the overall performance of Bitbus.


– Exception: peer-to-peer memcopies •cudaSetDevice() sets the current GPU •Current GPU can be changed while async calls (kernels, memcopies) are running – It is also OK to queue up a bunch of async calls to a GPU and then switch to another GPU – The following code will have both GPUs executing concurrently: cudaSetDevice( 0 );


In this work we present in-network techniques to improve the efficiency of spatial aggregate queries. Such queries are very common in a sensornet setting, demanding more targeted techniques for their handling. Our approach constructs and maintains multi-resolution cube hierarchies inside the network, which can be constructed in a distributed fashion. In case of …


Aug 01, 2009· Distributed uniform sampling in unstructured peer-to-peer networks. In HICSS, 2006. Google Scholar Digital Library; B. A. Bash, J. W. Byers, and J. Considine. Approximately uniform random sampling in sensor networks. In DMNS, 2004. Google Scholar Digital Library; S. Datta and H. Kargupta. Uniform data sampling from a peer-to-peer network. In ...


Meridian is a peer-to-peer overlay network for performing location-aware node and path selection in large-scale distributed systems. It is simple to deploy, robust to churn, and can accurately find the nearest node, pick the most centrally placed node, and find a node that fits latency constraints.