Totally agree, Jon. We gave up on discussing this distinction a long time ago, because there isn't a meaningful one. It's purely academic, because there's...
Dear All, ESP is the EDA application of data stream processing (DSP) to events with a primary application toward high-speed straight-through processing of...
Dear All, We read interesting discussions in the CEP and ESP market regarding terms like "clouds" and "streams". Sometimes we observe folks talking about...
Tim-san, ... I'd like to note that many data stream research projects and commercial products deal with out-of-order (from a temporal perspective) problem. For...
Dear Morishita-san, Thanks for the note and nice to see you in Tokyo at GMAC! The motivation of my post was to review the underlying set theory of events. For...
I find it quite humorous that were this kind of editorial to come from an academian, we would be lambasted for pontificating. But it's great to see this kind...
To join Tim's fan club, please contact Candyce Edelen at Kaskad Technology... J Congratulations Tim - I think that's the nicest thing anyone has said to anyone...
I’m confused by several of the recent postings that talk about trying to compare CEP to ESP or distill the differences between the two. Isn’t this like...
We might start by defining ESP in the glossary. Has anyone defined that yet? I didn't see it in the glossary. Kaskad has a fairly strict definition, at least...
Colin, ESP is defined in the glossary. You can still comment on it and I would urge you to do so since the glossary is under revision for final version take...
Dear David, Perhaps I did misread (1) and (2). I did say, though, that I don't know of any systems that have the following three properties: events must be...
Jon, Here is what I did say: "ESP is much more specialized processing than just one-at-a-time. Perhaps there are three assumptions in ESP. (a) The event input...
David, I thought an example of where Kaskad plays might be of interest. In dealing with very high rates of data transmission, feeds are typically split into...
Colin, Thanks for that dose of reality. Your example needs some further thought. Meanwhile, let me point out that in the post #1210 that Jon referred to, I...
David, If you would define the terms reliability and certainty within your context, I will do my best to answer. Regards, Colin P. Clark Chief Technology...
Dr Luckham, When you say: "Out-of-order event input means that assumption (c) is not valid. Then there are various strategies for compensating for 'stream...
Hi Jack, I would like to add something again to the discussion. Handling out of order doesn't necessarily slow the system down depending on how one defines...
From post 1210 (David L.) and subsequent posts: Out-of-order event input means that assumption (c) is not valid. Then there are various strategies for...
Colin, I owe you an apology. ESP is NOT defined in the current take-13 of the glossary, even though CEP and "event stream" are. Unbelievable. So here's a...
Tim-san, Thanks for your comment! It was great that we could have a discussion at GMAC! One of the motivation of my post was to clarify the fact that the ...
Dear Morishita-san, Hi! My apologies! I am a bit busy completing TIBCO client meetings in Tokyo at the moment and must be in Lisbon next week; and just found...
Hello David, I've developed an RDBMS based Event Processor called StreamCruncher (http://www.streamcruncher.com <http://www.streamcruncher.com> ). Have a look...
Hi! I am wondering if there is any CEP/ESP platform out there that is capable to import an existing XSD-Schemadescription to define the internal event-Schema?...
Not sure exactly what you are looking for - but AptSoft Director for CEP supports importing Web Services(WSDL) where the parameters are all definted as XSD...
does not sound exactly what I am looking for... I try to explain it a little bit better: most CEP/ESP platforms have capabiliies to define, how the event or ...
Coral8 does not support importing schema from XSD to define internal schema. The main reason is that the complexity of an XSD converter would be huge. However,...
Hi Chris, The Esper engine can do load an XSD schema and base it's event model on the data read from the schema. Event instances for such schemas use the...
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