CEP and Analytics Post: 302226599

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Special Forums News, Links, Events and Announcements Complex Event Processing RSS News CEP and Analytics Post 302226599 by Linux Bot on Tuesday 19th of August 2008 10:10:03 AM

08-19-2008

Registered User

CEP and Analytics

Tim Bass
08-19-2008 07:09 AM
Peter Lin comments*in A Complex Event = Sum (Events) + Situational Knowledge,*continuing*the discussion by asking*”What is the definition of analytics? Is it purely a calculation, or something else?”

A good place to being to look for clues to an answer is Wikipedia, where the opinion of the author there is,

*”A simple and practical definition, however, would be how an entity (i.e., business) arrives at an optimal or realistic decision based on existing data.”

Quoting your Wikipedia author(s) further,

“Common applications of Analytics include the study of business data using statistical analysis in order to discover and understand historical patterns with an eye to predicting and improving business performance in the future. Also, some people use the term to denote the use of mathematics in business. Others hold that field of analytics include the use of Operations Research, Statistics and Probability. However, it would be erroneous to limit the field of analytics to only statistics and mathematics.”

The Wikipedia author(s) goes on to further discuss analytics, as follows;

“Analytics closely resembles statistical analysis and data mining, but tends to be based on modeling involving extensive computation. Some fields within the area of analytics are enterprise decision management, marketing analytics, predictive science, strategy science, credit risk analysis and fraud analytics.”

All of these topics*above are CEP-related areas involving complex events and situations based on the need for optimal and reliable real-time capabilities to make meaningful (business) decisions.*

Simple pattern matching, event mediation and routing, and basic mathematical calculations do not really fall into the realm of complex event processing.* Instead, CEP is real-time decision support based on modeling*and “extensive” computation.* In a nutshell, complex events and situations*require analytical models that are non-trivial and that is why without analytics, there is no true “complex event processing.”

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dat_evd_clear_unwaitable

dat_evd_clear_unwaitable(3DAT)			     Direct Access Transport Library Functions			    dat_evd_clear_unwaitable(3DAT)

NAME

       dat_evd_clear_unwaitable - transition the Event Dispatcher into a waitable state

SYNOPSIS

       cc [ flag... ] file... -ldat [ library... ]
       #include <dat/udat.h>

       DAT_RETURN
	   dat_evd_clear_unwaitable(
	   IN	 DAT_EVD_HANDLE    evd_handle
	   )

PARAMETERS

       evd_handle    Handle for an instance of Event Dispatcher.

DESCRIPTION

       The  dat_evd_clear_unwaitable() transitions the Event Dispatcher into a waitable state. In this state, calls to dat_evd_wait(3DAT) are per-
       mitted on the EVD. The actual state of the Event Dispatcher is accessible through dat_evd_query(3DAT) and  is  DAT_EVD_WAITABLE	after  the
       return of this operation.

       This  call does not affect a CNO associated with this EVD at all. Events arriving on the EVD after it is set waitable still trigger the CNO
       (if appropriate), and can be retrieved with dat_evd_dequeue(3DAT).

RETURN VALUES

       DAT_SUCCESS	     The operation was successful.

       DAT_INVALID_HANDLE    The evd_handle parameter is invalid.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard: uDAPL, 1.1, 1.2    |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       dat_evd_dequeue(3DAT), dat_evd_query(3DAT), dat_evd_set_unwaitable(3DAT), dat_evd_wait(3DAT), libdat(3LIB), attributes(5)

SunOS 5.11							    16 Jul 2004 				    dat_evd_clear_unwaitable(3DAT)