Category: Sensor Fusion

A US Constitutional Failure Regarding Our Protection

Posted on 01/01/10 No Comments

Like most of you, I am still in complete shock over Northwest Flight 253 and how our government still cannot connect-the-dots in simple intelligence matters to protect us from harm. In this case, the well-respected father of a radical-Islamic Nigerian named Umar Farouk Abdulmutallab reached out to the US Embassy and other organizations in an [...]

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GeoIP and Geo-Targeting

Posted on 09/08/09 No Comments

Lately I have been busy with a web-based geo-targeting project.   For those of you not familiar with geo-targeting, the deeper you get into geo-targeting, the more you realize how important and interesting it is. Geo-targeting is used for fraud detection, personalization, ad-targeting, content-delivery, and more.   In addition, the same basic concept is used [...]

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Processing Complex Events at the Large Hadron Collider (LHC)

Posted on 06/10/09 4 Comments

Here is an excellent Google TechTalk by Dr. Majorie Shapiro (LBL & LHC ATLAS), June 18, 2007, on processing complex events at the LHC called, Supersymmetry, Extra Dimensions and the Origin of Mass: Exploring the Nature of the Universe Using PetaScale Data Analysis. This is really what I would call “real-time CEP.”  Bean collisions at [...]

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Real CEP News: Amazon Announces Elastic MapReduce

Posted on 04/02/09 4 Comments

Yesterday Amazon announced the public beta of Amazon Elastic MapReduce, a web-based service that enables businesses, researchers, data analysts, and developers to easily and cost-effectively process vast amounts of data.  Amazon Elastic MapReduce utilizes a hosted Hadoop framework running on the web-scale infrastructure of Amazon Elastic Compute Cloud (Amazon EC2) and Amazon Simple Storage Service [...]

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A Review of Zabbix – Zabbix Rules! (Part 2)

Posted on 03/23/09 2 Comments

In A Review of Zabbix – Zabbix Rules! (Part 1) we provided a brief introduction to Zabbix in the context of network and security management.  In this post I will discuss Zabbix as an event processing platform. Zabbix is like most event processing platforms.  Zabbix provides both agent-initiated events as well as server-requested events.  In [...]

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Real-Time Predictive Analytics for Web Servers

Posted on 03/02/09 6 Comments

We recently made the decision to move to Zabbix to monitor one of our busy production Apache web servers.  One of the things we need to do in the future is try to predict system outages and take corrective actions before the system actually goes down. For example, recently a busy server experenced an outage [...]

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Peter Lin on Situational Awareness and CEP

Posted on 03/01/09 14 Comments

Recently Peter Lin was kind enough to stop by and post this comment to our post, CEP Software Saves the Universe! Here’s my [Peter Lin's] bias perspective as a user and developer of expert system shell[s]. A business rule engine, expert system shell or CEP engine at best provide[s] a foundation for creating an expert [...]

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Real-Time, Online and Offline Complex Event Processing

Posted on 02/08/09 No Comments

Using NIST as computer science reference, an online algorithm is an algorithm that processes data (including events) element-by-element (and event-by-event), serially without having the entire problem space available from the beginning.  In contrast, an offline algorithm is provided the entire problem set from the start. Hence, real-time event processing applications generally involve online processing.  Offline processing is useful when creating [...]

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Apache Mahout: Real-Time Decisioning in the MapReduce Framework

Posted on 01/14/09 2 Comments

Here is a bit of good news for the complex event processing space.  Folks on the Apache Mahout developers mailing list are showing an accelerated interest in topics related to real-time decision-making, starting with a Markov decision process. The Hidden Markov Model (HMM) is listed under “non map-reduce algorithms” on the Mahout wiki.  The developer’s [...]

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Complex Systems and CEP

Posted on 11/30/08 1 Comment

A complex system is defined as a system composed of related components that as a whole exhibit one or more properties not obvious from the easily observed properties of the individual parts.  This is certainly true of the CEP notion of the “event cloud” in network systems.   A modern energy or telecommunications network is [...]

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