Category Archives: talks

PG Conf NYC 2020 reminder!

For those who are considering attending PG Conf NYC 2020: the last Day of the EarlyBird discount is January 31! The program (or at least most of it:)) is up, so you can decided which day(s) you want to attend in can’t make it for the whole week. There will be tons of interesting talks, I am already upset I won’t be able to be it three different rooms at the same time 🙂

For those who is interested in my presentations, here is the most complete information so far:

  • Boris and I will be doing the same Ultimate Optimization Training as we presented in Chicago in December. The even was sold out than, but it is not sold out yet in NYC :). Our training will be on the last day of the conference, Friday March 27
  • I will be presenting the talk about building local communities (specifically, how to build a Postgers User Group) on the second day of the conference
  • I won’t be presenting neither bitemporal library, nor NORM, but I was invited to talk at another event during the same week, where I will present the NORM talk (extended from my Cyprus presentation). I will publish all the details as soon as it will be finalized

Once again – there will be an amazing number of interesting presentations, and many experienced people to talk to (I already have a list of twenty:)), so please consider attending!

2 Comments

Filed under events, news, talks

More on our Presentation at SOFSEM 2020: NORM Goest Live!

My friends and colleagues who follow me for a while are well aware of the fact that my papers about ORIM/ORM were rejected at several conferences. Also, it’s a known fact that this kind of submissions is not welcomed at the conferences in general. My recent work, which was implemented at Braviant Holding with what I would call a smashing success, was only presented at the Postgres conferences. Our three attempts to submit it to any CS/Academic conferences failed. At some point, it became a matter of principle.


We submitted the new version to SOFSEM 2020 in the hope that at DB/SE conference, the topic could feel more appealing. The submissions formate required us to reduce the size of the paper almost twice, but we were still hopeful we would be able to convey a message.
That ended up being only a partial success. The paper was accepted, however, only as a short paper. Reading the reviews, we realized that none of the reviewers understood what it was about (in fact, we got much better reviews fro VLDB, were we got weak accept, which ended up being not enough). To make the paper even shorter, we had to remove all the actual work from the body:), leaving there only the motivation and the conclusion. But as I said, it was the matter of principle.

Then we spend quite a bit of time reworking the presentation. First, Boris wanted it to look more academic, that my older Postgres presentations. But then we started to change it back to more and more visual since we realized that the topic, the motivation, and the reality are pretty much unknown to our audience. Besides, my Postgres presentations were 40-50 minutes long, and here we had only 30 minutes, including questions. I tried very hard to get it to 23-25 minutes.

The last blow came two days before the conference when we were told that the presentations for short papers should be 18 minutes long, including questions, which meant I had only 15 minutes to present. That did not sound feasible, and we were desperate. Boris tried to negotiate our twelve minutes back with the organizers:).

But then a sort of miracle happened. Right before our session began, it turned out that the first person didn’t show up, and I claimed all the time I could. Unfortunately, I already cut several slides out of my presentation (I put them pack in the pdf, which I previously published here). After all, I was able to bring my point across, and I think that everybody present there, enjoyed the presentation. How I wish I won’t be presenting on the first day because then I `would convince more people to come. But in any case, I hope that now we will be able to publish a full version of the paper somewhere.

Leave a comment

Filed under events, talks

Our Presentation at SOFSEM 2020

A preface: as it usually happens with my favorite topic, neither database conferences, nor software engineering conference acknowledge that kind of research. Thereby, when although the paper got accepted, it was accepted as a short paper (because nobody understood what it was about :)).

Moreover, two days before the conference we were asked to shorten the presentation to 15 minutes. Fortunately for me, there was one no-show at our session, so I was able to present in full. Below is a full presentation version including two slides which were not in today’s presentation.

NORM – SOFSEM2020

2 Comments

Filed under events, talks

Chicago PUG January Meetup – Great Start for 2020

It has been for three years now, that Bravinat is hosting Chicago PUG meetups. Today we’ve rung in 2020 with two excellent presentations and very productive follow-up discussions.


I want to thank one more time all the user group members who joined us today.

Looking forward to another great year ahead!

Engaged audience
Our speakers

1 Comment

Filed under events, SQL, talks

Next Ultimate Optimization Training is Coming Up in March

For those who didn’t get a chance to get to our Ultimate Optimization Training in December: we are doing it again at PG Conf New York March 23-27. This is definitely not the only reason to attend the conference, but somewhat an extra bonus :). Please go to the conference page for the details: PG Conf 2020

Leave a comment

Filed under events, talks

Last Night at Chicago PUG

Chicago PUG November meetup, which took place on November 12, was a highlight of my career as a Chicago PUG co-organizer. We had both Magnus Hagander and Devrim Gündüz speaking at one event! The attendance was great, and I am very thankful for both Magnus and Devrim for agreeing to speak, as well as for Sri, who talked them into it :).

1 Comment

Filed under events, People, talks

Finally – Accepted Paper!

Last week I had the first acceptance of my paper to the real Computer Science conference for a very long time (since 2015!). Many things make this acceptance very meaningful for me. 

First, as I said, it’s the first one after four and a half years. 

Second, this is my first acceptance for the scientific conference since I joined Braviant Holdings. When I spoke at ICDE 2016, I was already with Braviant Holding, but the work was done, and the paper was submitted during my Enova tenure.

Third, the topic of the paper is ORIM, which is very difficult to sell to both the academic community and industry alike, and we already had two rejections of the earlier version of this paper.

And the last – this is the paper Boris and I submitted together since I can’t remember how long (I want to say – since 1995 :)). OK, the first accepted paper together:)

We will be presenting at the SOFSEM 2020 conference in January. So yes, this is also my birthday present 🙂

Leave a comment

Filed under events, news, research, talks