Iulia Feroli
@iuliaferoli.com
👩💻Tech stuff, conferences, ML/AI
🥑Dev Advocate @Elastic 🔎🫎
🥑Dev Advocate @Elastic 🔎🫎
After announcing the @elastic.co Agent Builder on our YouTube and dev (@elastic-dev.bsky.social) channels, I played around with it some more to build a #SpotifyWrapped generator based on a previous blog I wrote! I build my own ES|QL tool and musical agent 🎵
October 23, 2025 at 11:06 AM
After announcing the @elastic.co Agent Builder on our YouTube and dev (@elastic-dev.bsky.social) channels, I played around with it some more to build a #SpotifyWrapped generator based on a previous blog I wrote! I build my own ES|QL tool and musical agent 🎵
Gone from filming in every random corner of my student apartments to finally having a fixed "studio" for my videos. Only took 6 years since the first #youtube video 😅
October 22, 2025 at 10:49 AM
Gone from filming in every random corner of my student apartments to finally having a fixed "studio" for my videos. Only took 6 years since the first #youtube video 😅
@pydata.bsky.social Amsterdam was really fun last week! (selfishly, I also love stocking up on all the @numfocus.bsky.social stickers whenever possible - always a highlight! )
September 30, 2025 at 10:08 AM
@pydata.bsky.social Amsterdam was really fun last week! (selfishly, I also love stocking up on all the @numfocus.bsky.social stickers whenever possible - always a highlight! )
We’re at @pydata.bsky.social #Amsterdam today with @elastic.co. Come by our booth if you wanna chat about AI in search or observability and otel 😉. Or just for some cool stickers and socks 🧦
September 25, 2025 at 10:04 AM
We’re at @pydata.bsky.social #Amsterdam today with @elastic.co. Come by our booth if you wanna chat about AI in search or observability and otel 😉. Or just for some cool stickers and socks 🧦
I've been releasing loads of new content on our @elastic.co YouTube community channel.
Covered #LLMs, #RAG, #agents, #MCP, and the latest on #contextengineering.
Yes, I'm basically playing buzzwords bingo / catch 'em all.
And yes, I've also mastered "YouTube thumbnail posing". #hatethegame
Covered #LLMs, #RAG, #agents, #MCP, and the latest on #contextengineering.
Yes, I'm basically playing buzzwords bingo / catch 'em all.
And yes, I've also mastered "YouTube thumbnail posing". #hatethegame
September 23, 2025 at 10:40 AM
I've been releasing loads of new content on our @elastic.co YouTube community channel.
Covered #LLMs, #RAG, #agents, #MCP, and the latest on #contextengineering.
Yes, I'm basically playing buzzwords bingo / catch 'em all.
And yes, I've also mastered "YouTube thumbnail posing". #hatethegame
Covered #LLMs, #RAG, #agents, #MCP, and the latest on #contextengineering.
Yes, I'm basically playing buzzwords bingo / catch 'em all.
And yes, I've also mastered "YouTube thumbnail posing". #hatethegame
I am sooooo beyond excited to keynote #PyCon Sweden this year!! This is a truly special event with a lovely community in a wonderful city. I am so proud to come back in this role and I hope the talk will be useful or at least interesting to the pythonistas joining ;)
See you on halloween!! pycon.se
See you on halloween!! pycon.se
September 23, 2025 at 10:03 AM
#CDN Romania thank you for an amazing conference experience!
Great crowd and discussions, amazing speakers, lovely organisers, good location and food <3
I was so happy my talk about building @elastic.co analytics dashboards from your data (like an accurate DYI Spotify Wrapped!) was well received!
Great crowd and discussions, amazing speakers, lovely organisers, good location and food <3
I was so happy my talk about building @elastic.co analytics dashboards from your data (like an accurate DYI Spotify Wrapped!) was well received!
May 7, 2025 at 1:58 PM
#CDN Romania thank you for an amazing conference experience!
Great crowd and discussions, amazing speakers, lovely organisers, good location and food <3
I was so happy my talk about building @elastic.co analytics dashboards from your data (like an accurate DYI Spotify Wrapped!) was well received!
Great crowd and discussions, amazing speakers, lovely organisers, good location and food <3
I was so happy my talk about building @elastic.co analytics dashboards from your data (like an accurate DYI Spotify Wrapped!) was well received!
It turns out #PHP is as far away from my familiar safety blanket of #Python as you can get 😅.
I am tracking and notes & journey so far (probably soon to be a blog)
My "WTH is that" list so far: npm, vue, bun, brew, blade, react, mix, vite, herd, inertia, sail, tailwind, nginx.
I am tracking and notes & journey so far (probably soon to be a blog)
My "WTH is that" list so far: npm, vue, bun, brew, blade, react, mix, vite, herd, inertia, sail, tailwind, nginx.
February 4, 2025 at 9:23 AM
Talk about dramatic rockstar entrances 🤩🤩☄️☄️🎇🎇🎇
Laracon knows how to make an impression 🙌🏼🙌🏼
Laracon knows how to make an impression 🙌🏼🙌🏼
February 3, 2025 at 2:01 PM
Talk about dramatic rockstar entrances 🤩🤩☄️☄️🎇🎇🎇
Laracon knows how to make an impression 🙌🏼🙌🏼
Laracon knows how to make an impression 🙌🏼🙌🏼
At #laracon EU today in Amsterdam with our elastic booth. Come say hi if you’re around! Seeing a lot of great use cases especially with our open telemetry integrations for monitoring and observably w/ the laravel ecosystem
February 3, 2025 at 10:59 AM
At #laracon EU today in Amsterdam with our elastic booth. Come say hi if you’re around! Seeing a lot of great use cases especially with our open telemetry integrations for monitoring and observably w/ the laravel ecosystem
Now to look at what days this gets back, and check what the sleep scores for those days was.
Surprise, surprise. It's pretty much the same dates we got in the initial query.
This confirms that the intuition/hypothesis was pretty much spot on and I can "predict" my sleep score with simple math
Surprise, surprise. It's pretty much the same dates we got in the initial query.
This confirms that the intuition/hypothesis was pretty much spot on and I can "predict" my sleep score with simple math
January 29, 2025 at 3:19 PM
Now to look at what days this gets back, and check what the sleep scores for those days was.
Surprise, surprise. It's pretty much the same dates we got in the initial query.
This confirms that the intuition/hypothesis was pretty much spot on and I can "predict" my sleep score with simple math
Surprise, surprise. It's pretty much the same dates we got in the initial query.
This confirms that the intuition/hypothesis was pretty much spot on and I can "predict" my sleep score with simple math
Finally, the experiment. Can it be as simple as just making a basic formula around sleeping times and heart rate?
I build a query looking at deep sleep over 1.5 hours, heart rate under 60, and sorting by highest REM time:
I build a query looking at deep sleep over 1.5 hours, heart rate under 60, and sorting by highest REM time:
January 29, 2025 at 3:16 PM
Finally, the experiment. Can it be as simple as just making a basic formula around sleeping times and heart rate?
I build a query looking at deep sleep over 1.5 hours, heart rate under 60, and sorting by highest REM time:
I build a query looking at deep sleep over 1.5 hours, heart rate under 60, and sorting by highest REM time:
Looking a bit deeper at these days, and at the fields I already suspect had a pretty high influence on the scores, we notice some consistent values:
January 29, 2025 at 3:15 PM
Looking a bit deeper at these days, and at the fields I already suspect had a pretty high influence on the scores, we notice some consistent values:
Now comes our tiny data science experiment or hypothesis.
I gathered the days with the highest sleep scores with a simple sort on the score field.
sort="readiness.score:desc"
I gathered the days with the highest sleep scores with a simple sort on the score field.
sort="readiness.score:desc"
January 29, 2025 at 3:14 PM
Now comes our tiny data science experiment or hypothesis.
I gathered the days with the highest sleep scores with a simple sort on the score field.
sort="readiness.score:desc"
I gathered the days with the highest sleep scores with a simple sort on the score field.
sort="readiness.score:desc"
Step 2: we need a few lines to add the new data into an elasticsearch index so we can look through it easily. This was also super easy - as it tends to be with json files - so we didn't need any additional mapping or data processing steps.
January 29, 2025 at 3:12 PM
Step 2: we need a few lines to add the new data into an elasticsearch index so we can look through it easily. This was also super easy - as it tends to be with json files - so we didn't need any additional mapping or data processing steps.
First up I found the Oura developer API and got a quick dump of my activity/sleep data.
Oura itself seems to have the most restrictive native way to look at your data (vs fitbit or garmin) so this is already a great find/idea if you want some more insights!
Oura itself seems to have the most restrictive native way to look at your data (vs fitbit or garmin) so this is already a great find/idea if you want some more insights!
January 29, 2025 at 3:10 PM
First up I found the Oura developer API and got a quick dump of my activity/sleep data.
Oura itself seems to have the most restrictive native way to look at your data (vs fitbit or garmin) so this is already a great find/idea if you want some more insights!
Oura itself seems to have the most restrictive native way to look at your data (vs fitbit or garmin) so this is already a great find/idea if you want some more insights!
Today I dove into my activity tracker data; specifically, the sleep score that Oura calculates daily.
The intuition/assumption about it is pretty simple - more deep sleep and lower heart rate correlate with better scores. Is it that simple?
Let's take a look in a quick data science experiment
The intuition/assumption about it is pretty simple - more deep sleep and lower heart rate correlate with better scores. Is it that simple?
Let's take a look in a quick data science experiment
January 29, 2025 at 3:07 PM
Today I dove into my activity tracker data; specifically, the sleep score that Oura calculates daily.
The intuition/assumption about it is pretty simple - more deep sleep and lower heart rate correlate with better scores. Is it that simple?
Let's take a look in a quick data science experiment
The intuition/assumption about it is pretty simple - more deep sleep and lower heart rate correlate with better scores. Is it that simple?
Let's take a look in a quick data science experiment
This can also become an unofficial Taylor Swift specific era dashboard 😂 (if you get your hands on your swiftie friends’ data)
January 7, 2025 at 2:16 PM
This can also become an unofficial Taylor Swift specific era dashboard 😂 (if you get your hands on your swiftie friends’ data)
New year new project. I've been seeing lots of comments about the ~accuracy~ of spotify wrapped at the end of 2024 - so I've decided to build my own with #elasticsearch
It's actually super easy to put together and you can do way more drilling into your trends/taste over time <3
Blog coming soon!
It's actually super easy to put together and you can do way more drilling into your trends/taste over time <3
Blog coming soon!
January 7, 2025 at 12:42 PM
New year new project. I've been seeing lots of comments about the ~accuracy~ of spotify wrapped at the end of 2024 - so I've decided to build my own with #elasticsearch
It's actually super easy to put together and you can do way more drilling into your trends/taste over time <3
Blog coming soon!
It's actually super easy to put together and you can do way more drilling into your trends/taste over time <3
Blog coming soon!
Let's keep it positive. First dig into "starter pack" since I think it's such a cool feature on bsky!
These are some of the most positive posts about it so far. Curious to get some aggregations on most popular starter pack topics 💭🤔
These are some of the most positive posts about it so far. Curious to get some aggregations on most popular starter pack topics 💭🤔
December 5, 2024 at 3:16 PM
Let's keep it positive. First dig into "starter pack" since I think it's such a cool feature on bsky!
These are some of the most positive posts about it so far. Curious to get some aggregations on most popular starter pack topics 💭🤔
These are some of the most positive posts about it so far. Curious to get some aggregations on most popular starter pack topics 💭🤔
and if anyone was wondering:
puppies ---> 😐
puppies!!! ---> 🥳
puppies ---> 😐
puppies!!! ---> 🥳
December 4, 2024 at 2:28 PM
and if anyone was wondering:
puppies ---> 😐
puppies!!! ---> 🥳
puppies ---> 😐
puppies!!! ---> 🥳
For balance sake, here are some positive-sentiment posts around twitter as well 😁
December 4, 2024 at 2:09 PM
For balance sake, here are some positive-sentiment posts around twitter as well 😁
Started playing with huggingface and elasticsearch and I found this really cool dataset of 2M bluesky posts. I can now *factually* confirm that a lot of people just use bluesky to talk about twitter 😅
Starting to look into the sentiment of these posts next.
I'll share any interesting insights 😉
Starting to look into the sentiment of these posts next.
I'll share any interesting insights 😉
December 4, 2024 at 1:07 PM
Started playing with huggingface and elasticsearch and I found this really cool dataset of 2M bluesky posts. I can now *factually* confirm that a lot of people just use bluesky to talk about twitter 😅
Starting to look into the sentiment of these posts next.
I'll share any interesting insights 😉
Starting to look into the sentiment of these posts next.
I'll share any interesting insights 😉
If this doesn’t fully embody the spirit of “devs will just find a way to make it work” DYI vibes, I don’t know what does 😂
This is my 4k vlogging camera we duct taped to a wall. Aka our top of the line conference recording system.
You can always find a way. 🎥🩵
This is my 4k vlogging camera we duct taped to a wall. Aka our top of the line conference recording system.
You can always find a way. 🎥🩵
November 26, 2024 at 3:32 PM
If this doesn’t fully embody the spirit of “devs will just find a way to make it work” DYI vibes, I don’t know what does 😂
This is my 4k vlogging camera we duct taped to a wall. Aka our top of the line conference recording system.
You can always find a way. 🎥🩵
This is my 4k vlogging camera we duct taped to a wall. Aka our top of the line conference recording system.
You can always find a way. 🎥🩵
Elastic founder Shay Banon and Search general manager Steve Kearns running the “ask me anything” at #elasticon
November 26, 2024 at 10:20 AM
Elastic founder Shay Banon and Search general manager Steve Kearns running the “ask me anything” at #elasticon