Joonseok Lee, Mingxuan Sun, Guy Lebanon. PREA: Personalized Recommendation Algorithms Toolkit, Journal of Machine Learning Research (JMLR) 13:2699-2703, 2012. [BibTex] Joonseok Lee, Mingxuan Sun, Guy Lebanon. A Comparative Study of Collaborative Filtering Algorithms, ArXiv Report arXiv:1205.3193, 2012.
Gossip-based Membership Serf relies on an efficient and lightweight gossip protocol to communicate with nodes. The Serf agents periodically exchange messages with each other in much the same way that a zombie apocalypse would occur: it starts with one zombie but soon infects everyone. In practice, the gossip is very fast and extremely efficient. Failure Detection Serf is able to quickly detect fai
Buyer Protection Program When you buy a domain name at Dan.com, you’re automatically covered by our unique Buyer Protection Program. Read more about how we keep you safe on our Trust and Security page. Next to our secure domain ownership transfer process, we strictly monitor all transactions. If anything looks weird, we take immediate action. And if the seller doesn't deliver on their part of the
Availability is in some sense a much wider concept than uptime, since the availability of a service can also be affected by, say, a network outage or the company owning the service going out of business (which would be a factor which is not really relevant to fault tolerance but would still influence the availability of the system). But without knowing every single specific aspect of the system, t
This document provides an overview of stream data processing from an academic perspective. It discusses key concepts like continual queries and windows. Important stream processing systems are mentioned like STORM, Norikra, Jubatus, CEP, and DSMS. Technologies like FPGA, GPU, and MIC for high performance hardware are also covered. Applications discussed include algorithm trading, fraud detection,
Do you know any hidden or little-known nice feature of macOS (née Mac OS X)? It doesn't matter what it is—maybe just a short terminal command or a keyboard shortcut. Share your experiences on hidden Mac OS X features with us.. Please post one tip per answer. Please also check to see if your answer has already been posted - duplicate answers will be deleted. To search answers for this question use
Peter Bailis :: Highly Available, Seldom Consistent Data management, distributed systems, and beyond Non-blocking Transactional Atomicity 28 May 2013 tl;dr: You can perform non-blocking multi-object atomic reads and writes across arbitrary data partitions via some simple multi-versioning and by storing metadata regarding related items. N.B. This is a long post, but it’s comprehensive. Reading the
June 2, 2013 Volume 11, issue 5 PDF Proving the Correctness of Nonblocking Data Structures Nonblocking synchronization can yield astonishing results in terms of scalability and realtime response, but at the expense of verification state space. Mathieu Desnoyers, EfficiOS So you've decided to use a nonblocking data structure, and now you need to be certain of its correctness. How can this be achiev
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Many probability distributions that are important in theory or applications have been given specific names. Discrete distributions[edit] Binomial distribution Degenerate distribution With finite support[edit] The Bernoulli distribution, which takes value 1 with probability p and value 0 with probability q = 1 − p. The Rademacher distribution, which takes value 1 with probability 1/2 and value −1 w
The TLA+ Proof System (TLAPS) mechanically checks TLA+ proofs. TLA+ is a general-purpose formal specification language that is particularly useful for describing concurrent and distributed systems. The TLA+ proof language is declarative, hierarchical, and scalable to large system specifications. It provides a consistent abstraction over the various “backend” verifiers. The current release of TLAPS
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