How does DealTracker find the best second-hand deals?

How does DealTracker automatically find the best deals on the second-hand market?

Our method consists of 3 steps:

1. Finding ads selling the same product using artificial intelligence.
2. Analyzing prices to establish a reliable reference and detecting the best deals.
3. Comparing and filtering ads to show you the best offers on the market.

For example, if we see that the usual price for an item is €200, we will highlight ads selling that item for a lower price (€100 or less). These are likely to be great deals!

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How do we use artificial intelligence?

We use artificial intelligence to accurately identify ads selling the same item. Through a detailed analysis of the images in the ads, we can:

• Identify ads even if the seller did not mention the exact name of the product they are offering, ensuring that no interesting offer is missed.
• Exclude ads from the analysis that mention a product without actually selling it, thus guaranteeing more relevant and targeted results.

Naturally, this method is not infallible, and we might occasionally confuse one item with another that closely resembles it. However, our recognition system continuously learns from its mistakes to improve its future performance.

Note: DealTracker is evolving by incorporating new product categories over time. We follow a methodical approach to ensure that our system is as accurate as possible in these new categories, providing a superior quality service.

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How do we highlight certain ads?

After identifying the products sold in the ads, we carry out an in-depth analysis of price trends to determine a reliable reference price for each item across different regions. This approach allows us to provide buyers with valuable information for their purchasing decisions.

We then decide which ads to highlight based on several key criteria:

• The difference between the ad price and the reference price for that item, to prioritize the best deals.
• The publication date of the ad, giving priority to the most recent listings.

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... And what's next?

Recent advances in artificial intelligence open up many possibilities for analyzing the second-hand market and enhancing your shopping experience! We have many ideas and are excited to implement them.