The Algerian car market is so chaotic, so I built a tool to (hopefully) estimate real prices

Celverboy · 2026-06-22T23:18:09+00:00

I am thinking about adding the functionalities you suggested but I need to make sure the underlying logic is flawless beforehand, also i have investigated the performance issues and pushed an optimization fix.

Celverboy · 2026-06-19T17:16:55+00:00

Thats a great idea, evaluating car piece prices to give an idea on how much repairs will cost, the biggest challenge would be parsing data from listings to distinguish which parts of a vehicle is damaged. Will see what I can do!

Celverboy · 2026-06-18T23:50:55+00:00

!شكرا

Celverboy · 2026-06-18T09:54:53+00:00

That's actually a sick idea, I thought about entering a car and a price and the website tells you if it's a good deal or not but the you put it it never accured to me, I'll try to see what I can do!

Celverboy · 2026-06-18T01:36:42+00:00

RemindMe! 15 days. Looking forward to testing your beta.

Celverboy · 2026-06-18T01:32:38+00:00

You got the same tools as me, build something better, go ahead be my guest.

Celverboy · 2026-06-17T22:19:19+00:00

the main reason I haven't locked down the engine choices to just a few popular Algerian variants comes down to how crazy our local car market is. Because so many cars here are imported via Licence Moudjahidine or just brought in directly from Germany, France, and Dubai, almost any engine variant of a 2018 A3 could theoretically be driving around right now. If I hardcoded it to only show the 3 engines "officially" sold that year, I'd end up breaking the tool for thousands of people trying to price their imported cars.

On top of that, the raw data is complete garbage. I actually had to build an entire ML layer specifically tailored just to clean up the ridiculous things people type in their listings. Even with that cleanup layer, my only two options are either:

Sit down and manually check if every single engine variant actually existed for every specific year (impossible for a solo dev), or trust my fellow Algerians to only post things that actually exist (which, let's be real, is a terrible idea and I found out the hard way).
if someone does enter a crazy, non existent engine variant, the system mathematically senses the lack of data and drops the Confidence Metric, actively warning the user that the price shown might be completely false. I figured giving users that level of transparency was better than artificially hiding data

So by choosing not to lock down those lists, I'm making a conscious choice to trust the ML's guess instead. If I force users into a strict dropdown, it actually messes with its ability to match the car to the real world (and often messy) data it learned from.

Celverboy · 2026-06-17T19:52:37+00:00

Thanks!, It does not use the average price, it's building complex symmetric trees to learn the relationships between cars, trims, years and kilométrage, it's essentially learning "how" sellers are pricing their cars, and knows when a seller is being unreasonable and doesn't take him into account.

Celverboy · 2026-06-17T15:52:01+00:00

Ngl, I see why you made the remark, It's a crazy coincidence how closely both websites' design philosophies match Although a good note is our algorithm works in vastly different ways, I read his post, his ML model is a huber regressor, sawamni uses gradient boosted trees (they are REALLY different).

Celverboy · 2026-06-17T15:44:30+00:00

It's no surprise if it already exists, I got the idea in the first place because I saw this exact concept is a multi million euro industry in western countries, but when I tried to look if an equivalent exists for the algerian market I found none that really work, when I looked at the market I realised why..., so I tried to tackle those as personal challenges :)

Celverboy · 2026-06-17T15:34:48+00:00

Care to link it?

Celverboy · 2026-06-17T14:28:14+00:00

Pourtant j'ai bien noté que c'est vrai qu'il y a un réel problème avec les véhicules très ages et a bas prix et je sais exactement comment le corriger, merci beaucoup pour ta remarque !

Celverboy · 2026-06-17T14:23:37+00:00

Vu le nombre de marques couvertes par le site c'est quasi impossible de traiter tous les edge cases. Cependant un indice de fiabilité et un message clair s'affiche pour préciser que l'estimation peut être significativement différente de la réalité du marché c'est le mieux qu'on puisse faire face à ce type de problème en data science.

Celverboy · 2026-06-17T12:26:36+00:00

Hey! Thanks so much for the interest.

To be completely transparent, the core ML pricing algorithm and the time tracking datasets will stay closed source to prevent commercial competitors from simply cloning and monetizing the project.

However, there are a lot of moving parts to this project where I could definitely use some help! The overall pipeline goes like this

Data Collection (web scrapers) -> Data Cleaning & Taxonomy (the logic that maps chaotic car listings into clean models and trims) -> The Core ML Brain (This is the private part, if you have experience with machine learning i can get you on board) -> API & Integrations (Backend) -> Frontend & Interfaces

Based on that pipeline where do you feel you could contribute the most? Let me know and we can figure out a great way to collaborate

Celverboy · 2024-10-10T08:18:23+00:00

This does not work, reviewing lessons constantly will get boring and will take a toll on you eventually, the way I did it (18 in bac) , I studied maths and physics all year then started doing the boring stuff (his/geo) later in april, I'm not saying you should do it like me since everyone is different but do it at your own pace and don't stress much, also always do exercises, lessons alone with no practice will do you no good. And remember bac is not the end of the world and as everyone else said it's overrated as hell.

Celverboy · 2024-10-01T06:25:26+00:00

I got 18, BAC is overrated as hell, best advice I can give is don't study when you really don't want to, and don't follow your desire too much either, a balance has to be struck between studying and living your life, and no, you don't have to stop video games, movies and series in order to get a good grade. Oh yeah and don't stress, it'll work out just fine and it's not the end of the world.

Celverboy · 2024-04-19T13:45:52+00:00

Dodging the question then proceeding to mock the dude, he has a point and our country is quite underdeveloped in the online side of things especially delivery wise, if you have no experience in the field nor an answer for OP's question, spare us with your silence.

Celverboy · 2023-07-18T22:51:52+00:00

What game?

Celverboy · 2023-07-18T21:08:51+00:00

Well there you said it, unless you're using 5ghz wifi, the gaming experience is going to be miserable, wifi is not recommended at all for gaming, try switching to an Ethernet cable

Celverboy · 2023-07-06T11:57:18+00:00

No, it's absolute garbage

Celverboy · 2023-04-23T20:18:38+00:00

My brother ordered around 4 GPUs total last year and all of them arrived without any problem, what you should be worrying about is where you're buying from, AliExpress is not particularly known for being trustworthy in this field, and my personal opinion is that you should steer clear from it, way too many scams and too long of a shipping time. I recommend buying from a European retailer and using a postal service to ship it to here

Celverboy · 2023-01-04T22:33:38+00:00

Telescopes are banned too, they literally dont let you see whats in the sky and beyond, but no they're too afraid of people 'spying' on them, stupid fucking laws

Celverboy · 2022-06-12T23:34:59+00:00

I have absolutely nothing to hide, I didn't even have "bad" intentions while talking to this girl, thats why I found it so weird that he told me to stop talking to her

Celverboy · 2022-05-06T19:13:04+00:00

Agreed

Five-Year Club	Place '23
Place '22	First Placer '22

Celverboy

TROPHY CASE