Kostas Xirogiannopoulos

Research Scientist @ Meta. Databases and Data Management

[Rotational Labs @rotationalio]

🔍Seeking a fresh approach to #MLOps ? Join @RebeccaBilbro & @bbengfort for MLOps101: A Fresh Approach to Managing Models with Event Streams 🌊📊. Explore the power of event streams for #data storage, reproducibility & reliability. Register now! #LevelUp https://t.co/NSN7a4er4l

[GRADES-NDA Workshop at ACM SIGMOD/PODS '25 @gradesnda]

The proceedings of the GRADES-NDA workshop at @SIGMODConf are available on the @ACMDL now:
https://t.co/Mt1ifXoGN0

[Peter Boncz @peterabcz]

@cwi_da is working on graph support in @duckdb with the new Property Graph Query (PGQ) syntax in SQL:2023. In my keynote for https://t.co/Dwzm2zU9Zp there is a concise description of this project and of the new SQL/PGQ language (slides with speaker notes): https://t.co/hyhEpKwm4u

[Andy Pavlo (@andypavlo.bsky.social) @andy_pavlo]

I forgot to mention that we discussed in class how this tweet is yet another example of someone foretelling the inevitable death of SQL and the relational model.
My man should ask the CODASYL, ER, semantic, OO, XML, and NoSQL DB proponents how their same predictions worked out...

[Matei Zaharia @matei_zaharia]

Data query languages as shoes, a 🧵.

SQL: comfortable, highly supported, a bit bulky.
https://t.co/LZC9lz9lSg

[gaut @0xgaut]

the last standing Twitter engineer when Elon asks him to change the icon to a Doge

[AI at Meta @AIatMeta]

Today we're releasing the Segment Anything Model (SAM) — a step toward the first foundation model for image segmentation.

SAM is capable of one-click segmentation of any object from any photo or video + zero-shot transfer to other segmentation tasks ➡️ https://t.co/qYUoePrWVi

[Kostas Xirogiannopoulos @kxirog]

Check out our new paper on the current state of our presto deployment at Meta -- apart from scalability and latency, we also talk about how we enable ML feature engineering, as well as graph querying on top of presto!

[Presto @prestodb]

In this paper, we discuss several successful evolutions that have improved @prestodb latency as well as scalability in production at @Meta (ACM Special Interest Group on Management of Data) https://t.co/rckHdU9RML

[ACM SIGMOD/PODS (@sigmodconf.bsky.social) @SIGMODConf]

🔥🔥🔥 Excited to share that the first keynote speaker of #SIGMOD2023 will be Don Chamberlin (co-inventor of #SQL). In his keynote on "49 years of Queries", Don will be sharing stories from the early days of relational #DBMS technology. Register now! https://t.co/lhYJibEeLJ

[Brad Stulberg @BStulberg]

Let's address three topics that are trending in the so-called health, wellness, and performance space:

1) Cold plunges
2) Eliminating coffee
3) Cutting out alcohol

As always, no hype or motivated reasoning. Just the facts.

Buckle up:

[Kostas Xirogiannopoulos @kxirog]

@MKBHD We love our M1 Max Macs

[Kostas Xirogiannopoulos @kxirog]

@jon_prosser That wwwdc fake leak was clearly planned so that you muddy the waters.

[ceej @dickerdness]

Tiny shedding gecko looks like he’s wearing a tiny gecko costume

[Kostas Xirogiannopoulos @kxirog]

@Chris_Stuckmann would love to hear your take on “Horse Girl” if you got the chance to see it and found it interesting! :)

[Marques Brownlee @MKBHD]

Alright, it's true. I have an extra pair of these AirPods Pro to give away. Just RT and you're in. Will pick a winner in 24 hours. Good luck!

[Kostas Xirogiannopoulos @kxirog]

These slides by @definekuujo on getting started with @ApacheCalcite are super useful (especially the last 10 slides that show how you put everything together).
https://t.co/65UT0sGLO7

[John P Dickerson @johnpdickerson]

This morning:
1) On the sidewalk, hit from behind by a (rented) Bird scooter driven by somebody texting.
2) The very next block, watched a (rented) Revel electric scooter pull an illegal u-turn and run into a parked car, fall over.

This is not the dystopian future I expected.

[Daniel Abadi @daniel_abadi]

New post on my blog when I discuss correctness/time-travel anomalies in serializable database systems. https://t.co/gEafLP0A4Z

[Kostas Xirogiannopoulos @kxirog]

@krismicinski @EngineeringSU Congrats Kris!