AI Engineer World's Fair 2026
Keyword Search Is Dying. Is Your Catalog Ready for AI Agents? — PayPal
Slide chapters
16 slide and demo groups · Timestamps are approximate.
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Keyword Search Is Dying. Is Your Catalog Ready for AI Agents?
Nixon Dinh explains how shopping moves from keywords to intent and delegated action, then follows PayPal’s catalog-enrichment experiments to a practical finding: useful product detail improves recommendations, while excess text can make them worse.
From a talk by Nixon Dinh
At a glance
Ideas worth remembering
Intent-driven shopping makes product context more important: agents must connect a shopper’s situation to suitable items, rather than depend only on matching keywords.
Hybrid search combines predictable literal matching with broader meaning-based retrieval; the recording does not disclose PayPal’s ranking implementation.
PayPal’s experiments found the largest enrichment gains in thin catalogs. Product attributes, deeper descriptions, buyer context and reviews can supply information those records lack.
Over-enrichment sometimes increased hallucinations and reduced performance. Assess the starting catalog and add relevant product information rather than boilerplate.
From finding a product to describing a need
A shopper typing “school supplies” has already translated a situation into a search term. A parent explaining that her daughter starts fifth grade in September gives an agent the situation itself. The system now has to connect that need to products. Nixon Dinh, Director of Product for Agentic Commerce at PayPal, uses this change to introduce the catalog problem: merchants need product data that helps an agent understand what an item is useful for.
Commerce has already expanded from physical stores to e-commerce sites, then into email, SMS and social channels. PayPal sees agents as the next step in that progression. The change reaches beyond where a merchant advertises: it changes how the customer searches and how products become candidates for a purchase.
The progression has three stages:
- Search era. The shopper enters keywords and navigates a catalog. Merchants optimize for SEO, while the shopper carries the work of finding a suitable product.
- Intent era. The shopper describes a need in ordinary language. AI must connect that description to relevant products, bringing brands into the interaction.
- Delegation era. As customers come to trust recommendations, PayPal expects them to hand agents more shopping and commerce tasks. This stage is a forecast, and trust is the condition that makes it plausible.
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Discoverability changes before delegation arrives
Dinh cites a Bain & Co. projection that agents will execute 15–25% of all commerce by 2030, alongside a prediction that agents will outnumber humans online within a decade. He also presents expectations of $1 trillion in agentic US retail commerce, $3–5 trillion globally, and more than two billion people starting shopping journeys with AI over the next few years. These are forecasts used to frame the opportunity, rather than measurements of commerce already delegated to agents.
The nearer-term signals concern shopping assistance. PayPal’s consumer studies found that 39% of US shoppers already used AI for shopping, and Dinh reports that businesses saw up to four times higher order-completion conversion when an interaction began with an agent. He connects that result to richer product information available during the interaction. The recording does not establish the study populations or comparison conditions, so the conversion figure is a reported observation rather than a general causal estimate.
For a merchant, each stage introduces a different job. Keyword SEO might make a summer dress discoverable in a search. Intent-driven shopping requires the agent to recognize when that dress fits a customer’s request and represent it usefully. Delegation adds the requirement to turn demand into a transaction safely and in a trusted way. Catalog preparation matters before that final stage: a product cannot become a good recommendation if the agent cannot discover or understand it.
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An advertising feed does not explain product fit
Many merchants already syndicate catalogs to Google, Meta or other advertising platforms. That does not make those catalogs ready for agents. Their specifications were built around existing advertising and human-search workflows, and may provide too little readable context for an agent to discover products or judge their relevance to a request.
There is also no single recommendation system to optimize against. Agents can use different models, ranking methods and recommendation algorithms; Dinh also notes that vector retrieval is not always deterministic. That makes a universal agent-discovery strategy harder to define than a familiar SEO strategy. PayPal’s response was to enrich merchant product data and run experiments on how agents searched and recommended products.
The distinction between keyword and semantic search explains what enrichment can change:
- Keyword matching. In the talk’s simplified example, a search for blue running shoes finds products containing those words. Literal matching is fast, precise and predictable, but “footwear for jogging” may miss the same shoes because the wording differs.
- Semantic matching. The system converts a query into vectors that represent meaning. A request for something comfortable for marathon training can lead to running shoes even without matching the query’s words literally. This broadens discovery, but introduces fuzzier relationships between the request and the product.
PayPal’s direction is hybrid search: combine literal matching with meaning-based retrieval. The two methods supply different strengths, so improving semantic discovery does not eliminate the usefulness of keywords. Dinh does not specify how PayPal combines scores or ranks the combined results; the claim here is about the complementary approaches, rather than a disclosed ranking implementation.
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Give the running shoe enough detail to match a need
Enrichment starts with the catalog a merchant actually has. A thin catalog and a specification-heavy catalog need different additions. PayPal considered filling missing attributes, deepening descriptions, adding buyer context, including trust signals and clarifying product identity. These are different ways to make a product understandable; adding the same material to every catalog would ignore what is already present.
The running-shoe example makes the change concrete. The original record identifies a blue men’s shoe, model 8543. Its description says blue running shoes are available in multiple sizes, and its attribute identifies the color as blue. That record gives keyword search a few useful terms—blue, running and shoe—but gives semantic retrieval little context about comfort, construction or intended use.
The enriched version describes a men’s lightweight running shoe. The description adds cushioning and breathability; attributes add mesh material and a true-to-size fit; review data supplies another source of product context. Search can now match a broader set of terms, including running, training and mesh. Meaning-based retrieval also has more product characteristics to connect with a shopper’s request.
Why can the same shoe become easier to find after enrichment? The diagram follows the change in its representation. The product has not changed; the catalog has made more of its characteristics available to search. Cushioning and breathability give a comfort-oriented request something relevant to match, while explicit attributes widen literal matches. The example illustrates that connection without reporting a recommendation score for this individual shoe.
The same shoe, with more searchable product information
Read the diagram as text
- Thin shoe record. Blue men’s shoe, model 8543; running shoes in multiple sizes; color: blue.
- Enriched shoe record. Lightweight, cushioned, breathable; mesh material; true-to-size fit; review data.
- Broader keyword matches. retrieval — Search can match running, training and mesh.
- Richer semantic context. retrieval — Comfort and construction details give meaning-based search more context for matching a need.
- Thin shoe record → Enriched shoe record: Add attributes, description detail and reviews.
- Enriched shoe record → Broader keyword matches: Expose more matching terms.
- Enriched shoe record → Richer semantic context: Supply more relevant meaning.
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Enrichment helped; excess context weakened the signal
In PayPal’s head-to-head experiments, enriched product data improved recommendations compared with the unenriched baseline. Merchants with the thinnest catalogs gained the most, and weak product data left the most room for improvement. This was one set of experiments, with no quantified recommendation metric or evaluation protocol provided in the recording; it supports trying enrichment against a merchant’s own baseline rather than assuming a universal gain.
The result depended on what the added content contributed. Product-specific detail gave search more relevant information. Unstructured boilerplate could dilute that signal. A welcome message or a statement that a store is family-owned may describe the merchant, but it does little to explain whether a particular shoe suits a training request. Putting those words into product context adds text without necessarily adding useful evidence of product fit.
In some over-enriched cases, agents hallucinated more and performed worse. That qualifies the positive result: useful enrichment beat sparse records, but continuing to add content was not a reliable improvement strategy. Keyword search benefited from added terms, while semantic retrieval required attention to how meaning was represented and how much irrelevant context entered the record.
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Start with missing product information
The practical starting point is to assess the catalog, then choose an enrichment strategy for its weaknesses. A sparse shoe record may need material, fit and comfort details. A specification-heavy catalog may already have those facts and need a different treatment. The experiments offer a direction—structured, high-quality product content—without a concrete prescription for every business.
“More text isn’t better” is the useful closing rule. Dinh’s view is that content quality will matter more than brand identity in agent discovery, while other trust signals still influence recommendations. Reviews in the running-shoe example show how those concerns can meet: they add context an agent can use alongside the product’s attributes. The merchant’s job is to give an agent enough relevant information to make a recommendation worth trusting.
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Read the complete timestamped transcript
16 slide groups. Extracted from the recording; expand builds to follow changes. Timestamps are approximate.
- 0:12
Hi, everyone. Um, welcome. I, I'm Nixon Dinh. I'm the Director of Product for Agentic Commerce at PayPal, and what that really means is I lead a lot of our efforts on how AI agents are reshaping shopping and payments. Um, and, you know, most of my career has been on commerce and payments, and right now I'm really excited about helping merchants navigate this shift, uh, towards, like, agent-driven commerce. And specifically, what we're gonna talk about today is, um, the catalog piece and it
- 0:42
being agentic-ready and sharing some of our learnings on this, on this journey.
Catalog Intelligence for AI Agents
Nixon Dinh introduces PayPal’s work on making merchant catalogs ready for AI agents.
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PayPal Catalog Intelligence for AI Agents July 2026 © 2026 PayPal Inc. Interface text: CC
A fundamental shift in how consumers shop
Commerce moves from in-person shopping through websites, email/SMS and social to agentic commerce. Product discovery shifts from keyword and click-based search to natural language, while consumers begin to trust AI agents for daily tasks.
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A fundamental shift in how consumers shop is underway In-person commerce E-commerce (websites) Email/SMS Social Agentic Product discovery is moving from keyword and click-based search to natural language. Consumers are beginning to trust AI agents for daily tasks. Interface text: CC
- 0:50
So I think it's very important we just kinda level set a little bit. When we look at the evolution of commerce, we've seen it transform from, you know, in-store brick-and-mortar transactions to the advent of e-commerce, where this started off quite linear. Um, a user would simply search and buy from e-commerce sites. And then through, like, Internet 2.0, uh, we've seen that transform further into more complex, uh, channels that involve email, SMS, and, like now, social commerce. For us, like,
- 1:20
we see AI as the next evolution in that journey, and with any evolution, we know two things to be true. The first, like all change, it can seem like a threat to a business, um, but on the flip side of that, it can also be seen as a big opportunity. And the second thing that we know is that whenever we have seen consumer behavior change because of a new technology, commerce tends to evolve alongside with it. And so we are starting to see that now with agentic,
- 1:50
where not only is the new-- this is a new channel that's enabling, uh, merchants to engage with customers in a very deeply personalized way, but also how customers are searching and finding products is changing. And, uh, now is really the time that merchants are starting to look to invest on how to, to change with, with their customers and, and, uh, succeed in the agentic era.
How shopping behavior is evolving
Shopping moves from keyword searches and browsing to describing needs in natural language. PayPal expects shoppers to delegate purchases to agents as trust in their recommendations grows.
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How shopping behavior is evolving Today: Search I look for products School supplies • Keywords (browser) • Browsing • Clicking through Transitioning to: Intent I describe what I need Find back-to-school clothes and supplies for the twins • Natural language (LLM) • Specific context • Guided discovery Next wave: Delegation I tell it what to do Get the back-to-school shopping done. Keep it under $300. • AI selects and completes purchases for you © 2026 PayPal Inc.
- 2:18
So earlier, I touched on how the consumer behavior is starting to change. Um, but I just wanna dive deeper a little bit on this. So we, you know, when we first, uh... when we think about, uh, consumer shopping, that behavior up until today has been now what we're calling the search era. Um, it goes through a, a phase where, like, it's keywords. You're navigating a catalog. There's SEO strategies,
- 2:48
and this is what most businesses have optimized towards over the last decade. And while for many businesses this worked, this model put the burden on the shopper to really find what they needed.
- 3:02
Um, now what we're seeing is that we're moving into this phase called the intent era. So instead of typing keywords like, "I want school supplies," um, I might say something like, you know, "My daughter's starting school in September in fifth grade, and I need, uh, to, to shop back to school." And that's a very completely different interaction. Um, so you are now expressing your needs in your own words, and AI is now asked to meet you where you are.
- 3:32
And so the brands are coming to you instead of you having to go find them, and that's a very, very different interaction model. Um, and most businesses now are starting to find that they need to set themselves up for this interaction model.
- 3:47
Um, so
- 3:52
what we believe will happen next is, after we go through the intent era, what will have to happen is customers need to start trusting the recommendations that they're getting from the, from the agents. And once that trust starts to build, we do start to believe that they will start delegating more and more actions to the agents, and that's also where w- as PayPal, we're building towards is, um, h- continue to build on that trust and move into a world where humans start to delegate more and more of their tasks in commerce and shopping to their agents.
Forecasts for AI agents and commerce
Bain projects agents will execute 15% to 25% of commerce by 2030. A second forecast predicts agents will outnumber humans online within a decade.
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Agents may execute 15% to 25% of commerce in 2030¹ Agents are predicted to outnumber humans in 10 years² ¹ Bain & Company, [illegible] ² Fortune, [illegible] © 2026 PayPal Inc.
- 4:26
So although we talk about this delegation era, and we think it sounds like it's so far into the future, you might be asking, like, why this matters now. And so we have a couple of re- pretty big data points that we want to share to really underscore why this matters. The first is, uh, through a study at Bain & Co. Um, they project that by twenty-thirty, fifteen to twenty-five percent of all commerce will be executed by an agent. And furthermore, within a decade, agents are predicted to
- 4:56
outnumber humans online. And so these numbers don't just indicate that this is, like, not meaningful now. It is a very marginal shift that, you know, businesses can't ignore and that this is a very structural transformation happening in the entire e- entire e-commerce ecosystem.
Agentic commerce market opportunity by 2030
The slide presents a 2030 agentic commerce opportunity of $1T in US B2C retail and ~$3T–$5T globally, alongside 2+ billion active users across AI platforms.
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Agentic Commerce Market Opportunity by 2030 2+ Billion Active users across ChatGPT, Google Gemini, Microsoft Copilot, Meta, Amazon & beyond $1T B2C Retail US ~$3T-$5T B2C Global Projections Source: McKinsey, “The agentic commerce opportunity,” October 2025
- 5:19
So to go further, I think it's very good to understand why PayPal feels like we are bullish on this opportunity. Um,
- 5:30
as a industry, we expect, uh, to be some very tangible opportunities coming forward. We expect one point-- one trillion dollars of, uh, commerce to happen, uh, in US retail to be agentic, and then we expect that to be three to five trillion globally. And what we've have seen is that there are over two billion users, um, projected to use, like, AI to start their shopping journey over the next few years.
Creating new commerce opportunities for merchants
AI referral traffic to retail sites grew 693% in the 2025 holiday season versus 2024. The slide also reports 4X higher conversion when shoppers engage with AI during their visit.
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Creating new commerce opportunities for merchants 693% YoY growth in AI referral traffic to retail sites (2025 holiday season vs. 2024)¹ 39% of US consumers already use AI for shopping¹ 4X higher conversion when shoppers engage with AI during their visit² ¹ Adobe, (2026, Jan), [illegible] ² [illegible] Purchase Complete White hoodie - M Qty 1 Tomorrow, May 16 $49.50 Manage Order Subtotal $49.50 Total $49.50 USD Success, I’ve placed your order with your Visa x6505 to arrive at your home tomorrow. Would you like to track your package? Yes please Ask anything
- 5:57
And so
- 6:00
when we think through this, what does this actually mean for businesses and merchants? When we talk to our customers and what we talk to our partners, what we've seen is six-- they-- that what they've re-reported is that over six hundred and ninety-three percent, uh, referral traffic from AI engines. And when we did consumer studies, we found that thirty-nine percent of US shoppers are already using AI for shopping today. Um, and I'm sure many of you have probably defaulted to that pattern today. And what we
- 6:30
have found also is that when you do start and interact with an agent first, businesses have tend to see f- up to four times higher conversion on a completion of an order because now they can get more rich and in-depth data on a product.
What that means for merchants
As consumers move from search to intent and delegation, merchants shift from SEO and apps to AI discoverability, then to converting demand through conversational experiences.
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What that means for merchants Today: Search Transitioning to: Intent Next wave: Delegation Consumer Today: I search and browse to find products and checkout by clicking Intent: I describe what I need and get guided results Delegation: I expect AI to help make decisions for me Merchant Today: I invest in SEO and my app to capture demand Intent: I must be discoverable where AI is driving demand Delegation: I must convert demand through conversational experiences © 2026 PayPal Inc.
- 6:50
And so
- 6:53
with that all happening and the traffic moving, we wanna break this down further onto, like, what this really means acr- uh, uh, deeper for merchants. In the search era, this was very, like, SEO-based, and you might optimize for, like, a summer dress. In the intent era, you have to think through, "How do I be discoverable for where an agent is representing my, my business?" And then in the delegation era, we need to think through, uh, how I
- 7:23
can convert that demand safely and trusted-- in a trusted way.
The challenge
As commerce moves to AI agents, merchants need to stay visible wherever consumers interact.
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The challenge As commerce moves to AI agents, merchants need to be visible wherever consumers interact. © 2026 PayPal Inc. Interface text: CC
- 7:31
And so the challenge becomes to think through is, like, as commerce moves to AI agents, how do you as a business be visible where the consumers interact?
Catalogs were built for humans
AI agents route shoppers to products, but catalogs were designed for human search and advertising feeds. The slide also says merchants lack a standard way to verify or compare AI discoverability.
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But Catalogs weren’t built for Agents. They were built for humans. AI agents are how people discover products now ChatGPT Shopping, Perplexity Pro, Google Gemini these route to a product, not a page. Catalogs were built for human search Keyword-stuffed descriptions. Proprietary IDs. Schema designed for Google Shopping feed, not AI retrieval. There is no standard for “discoverable” Every enrichment method claims “AI-discoverable.” But we have no way to verify and no easy way to compare methodology. 6
- 7:45
The issue with this is that catalogs weren't really built for agents. Um, most merchants today, uh, maybe advertise on Google. Um, they have a catalog they syndicate to there or maybe to Meta or Facebook or other advertising platforms. But the spec wasn't built for agents. And so agents now, um, uh, c- you know, if you... Uh, it's not optimized for agents to discover products. Um, it's not as readable for agents as well, and they're really just built for humans search.
Agents’ models are still a black box
Changing models, unclear ranking methods and retrieval that is not always deterministic make it hard for businesses to choose what to optimize for. The slide cautions against relying on one AI retrieval pattern.
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Agents’ models are still a black box Agents use changing models to make decisions Vector database retrieval is not deterministic or explainable Models’ methods of ranking and recommendations are unclear We do not want to over-index on just one AI retrieval pattern Interface text: 15
- 8:18
And then to compound that even more, the models that agents use are still, for the most part, a, a black box. Agents can use different varying models to make their decisions. Um, different models use different ranking and recommendations a-and, and, uh, algorithms to, to determine their recommendation. Uh, vector database retrieval is also not always deterministic. And because of all of this, how do you decide as a business what model do you, do you
- 8:48
optimize for? In the old SEO world, there was a clear strategy. In this new world, the strategies are still remain largely unclear.
We ran experiments
The team enriched merchant product data to test how agents searched for and recommended products across enrichment strategies and models.
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We ran experiments We enriched merchant product data to see how agents performed against different enrichment strategies and models.
- 8:58
And so what do you do when you don't know? You run experiments. And so we, we ran some experiments. We enriched, uh, some of our merchant product data, and we ran experiments to see how agents, uh, uh, searched, uh, and, and recommended products.
Keyword vs Semantic
Keyword search matches literal words, while semantic search uses vectors to match meaning and intent. Keyword matching can miss synonyms; a vector representing too much text can lose focus. The speaker advocates combining both.
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Keyword vs Semantic Keyword Search (BM25) Semantic Search (Embedding/Vector) How it matches Keyword: Matches the literal words in the query to words in your product text Semantic: Converts query and products to vectors. Matches by meaning and intent Example Keyword: “Blue running shoes” – only listings containing those words Semantic: “Something comfortable for marathon training” > finds running shoes even without those words Strength Keyword: Precise, fast, predictable Semantic: Understands intent, synonyms, context Blind Spot Keyword: Misses synonyms & intent e.g. footwear for jogging may return nothing Semantic: Loses focus when one vector represents too much text
- 9:18
And before I get into the experiments that we ran, um, I think very good to level set with everyone how, like, the differences between keyword and semantic search. And then it, it trickles through to the things I've talked through earlier with keyword search being, you know, very matching the, the search that a user's entering in. So in a classic search, it might la-match literal words. Um, for example, I'm searching for blue running shoes, and you only get results that contain those words.
- 9:49
The good part about this, it's very precise, it's fast, it's predictable. But the downside is it misses intent. And so if you ever search footwear for jogging, it may not even return those shoes.
- 10:03
Uh, and that's only simply because the words don't match. Whereas with semantic search, it matches based off meaning. Um, what it does is it converts the query into vectors that create, um, meanings of intent. And so you might type something, "Oh, s- I'm searching for something comfortable for marathon training," and you might find your running shoes even though none of those words exist in the search query. Um, so the good part about the-- that is it broadens in
- 10:33
how you can search. But the downside is if you inject too much meaning, it can lose focus and hallucinate. So there is a balance of how much you want to enrich and how much you want to inject into your enrichment. So to sum it up, keyword search is quite precise. It's, it's very literal. Semantic search is just-- it's smart, but it's very fuzzy. And realistically, the real answer isn't an either/or. It's, it's combining both, which is exactly what our hybrid
- 11:03
approach does. Um, and that's kind of where we're headed next.
Five data enrichment dimensions
The experiment compares five enrichment patterns by catalog fit: attribute fill suits thin-spec catalogs, buyer context suits lifestyle products, and trust signals suit durable goods.
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The enrichment experiment grouped solutions into 5 different data dimensions Attribute Fill PATTERN Required spec & cat-specific attributes FITS Thin-spec catalogs, small merchants WEAK FOR Already-rich feeds Description Depth PATTERN Rich product narrative + use-case framing FITS Generic-titled SKUs, commodity goods WEAK FOR Tight, structured catalogs Buyer Context PATTERN Persona, occasion, scenario tags FITS Lifestyle, gifting, fashion WEAK FOR Pure-spec products Trust Signals PATTERN Reviews, brand-PDP, ratings & sentiment FITS Furniture, durable goods, electronics WEAK FOR Time-sensitive deals & fashion Product Identity PATTERN Canonical entity, group-level IDs FITS Multi-variant, multi-channel WEAK FOR One-off SKUs
- 11:08
So now that we understand what semantic search is, it's important to highlight that there is no singular way to really enrich product data for semantic search. I think it's really important for you as a business to understand the kind m- kind of catalog data you already have. Um, do you have a thin catalog? Do you have a catalog of products that are more spec-heavy? Depending on where your business is today, you should think through what y-you might want to enrich. And so for the experiment though, we thought through different
- 11:38
patterns of enrichment. Um, and I won't go through all of them in detail, but th-things around, like, filling attributes, making sure there's description depth, um, make sure there's buyer context and trust signals and even some product identity.
- 11:52
I think the main takeaway from this slide is that enrichment isn't one size fits all. The right approach really depends on the catalog you're starting with, and that's the framing we'll build on next.
Enrichment in Action
A running-shoe example adds use, fit, material and reviews to a sparse listing, giving keyword search more terms to match and semantic search more context for a marathon-training query.
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Enrichment in Action Before – Raw Catalog Listing Title Men’s Shoe 8543, Blue Description Blue Running Shoe. Available in Multiple sizes Attributes Color: Blue WHAT SEARCH SEES Keyword: Matches only “Blue”, “running”, “shoe” Semantic: Too little context. Weak generic match After – Enriched Enlisting Title Men’s lightweight running shoe. Breathable Mesh, Blue. Description Cushioned, breathable running shoe built for long distance training and daily jogging. Lightweight mesh keeps feet cool Attributes Use: running marathon training. Fit: True to size Feel: Cushioned Material: Mesh Reviews: 4.6 Stars (1,240 reviews) WHAT SEARCH SEES Keyword: Matches running, training, mesh, lightweight, cushioned Semantic: Rich meaning found for “comfortable shoes for marathon training”
- 12:03
And so here's just an example of enrichment in action for us. Um- Example on where, we're starting, we have men's, uh, men's shoe model 8543 that's blue. And then the description will be, uh, blue running shoes, um, available in multiple sizes. There's an attribute that's blue. Keyword matches may be blue, running, or shoe. And then, um, the semant- for semantic there's, you know, very little context for that. When you enrich,
- 12:34
there, now we might have the title as a men's lightweight running shoe. Um, the description now more enrich, like it's cushioned, it's breathable. Uh, there are further attributes we've pumped into that as well. So there's like true to size, it's, it's, the material's mesh. Um, we also put in some reviews here as well, so e-e-enrich that with some review data. And now what the search sees is, um, it matches running, it matches training, it matches mesh. There's, there's a lot more that it matches. So with semantic, there's a lot of rich meaning that's put there,
- 13:04
uh, to kind of enhance the search.
- 13:08
And so here, the, the, uh, some of the examples we've used was attribute filling or buyer context or even, uh, the trust signals around the reviews as well.
- 13:20
And so ultimately at the end of the experiment, um, you know, our thesis was generally speaking, does enrichment help boost, uh, recommendations? And at, and it's called yes it does. Um, what we saw was an unenriched baseline, like when it went head-to-head, um, it just completely underperformed. We found that merchants with the thinnest catalogs tend to gain the most. Uh, merchants with weak product data also had the most room to improve.
- 13:50
Um, but I think what we needed to also understand is that it's more about content quality that drives the results, and it's not the schema that actually... and actually piling on, you know, unstructured data can actually dilute the signal as well. And so what do we mean by, like, unstructured data? Like we just don't wanna stuff the, the context of anything or any words we want. We don't wanna put any boilerplate messaging around, um, potential, like, you know, "Welcome to our store.
- 14:20
We're a family-owned business." Those things are irrelevant to an agent at times. And so how you enrich what you structure into the data really, really matters as well.
Enrichment and retrieval learnings
In one set of experiments, BM25 retrieved more enriched products at every top-k position; semantic retrieval sometimes retrieved fewer. The slide suggests a single vector can lose focus when long text covers many topics.
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Our learnings: Enrichment helps keyword search. Semantic retrieval requires a different data structure. FINDING 1 ✓ Enrichment HELPS BM25 retrieval. BM25 Top 10 Legend: Unenrich = 4.27; Enrich = 8.89 Y-axis ticks: 0, 500, 1000, 1500, 2000 X-axis ticks: 0.0, 2.5, 5.0, 7.5, 10.0 More enriched products are retrieved at every top k positions. Lift comes from: → Longer text hits more keywords → Term diversity in long descriptions → Image-derived attributes & sections Implication: More enrichment helps product retrieval if it matches the search query well FINDING 2 ⚠ Traditional enrichment strategies alone are insufficient for semantic retrieval Semantic Top 10 Legend: Unenrich = 6.09; Enrich = 3.87 Y-axis ticks: 0, 200, 400, 600, 800, 1000, 1200 X-axis ticks: 0.0, 2.5, 5.0, 7.5, 10.0 Sometimes fewer enriched products are retrieved. Why it happens: → Long text conveys many topics → Single semantic vector loses focus when representing all information Design implication: Agentic product discovery pipeline must use additional techniques to take full advantage of product enrichment. © 2024 PayPal Inc.
- 14:31
And so just general speaking, a sum up of our learnings was enrichment helps keyword search. Semantic retrieval requires a very different set of data structures. But there is a balance to how much you want to enrich, uh, to improve semantic retrieval. And while this is only one set of experiments, we did find that enriching just, yeah, head-to-head always improved recommendations. Um, what we had found in some cases when we
- 15:01
over-enriched, the agent tended to hallucinate more and it underperformed. Um, and we don't have a con-concrete recommendation for every business, but a good place to start is just assess your catalog and then figure out the right strategy for that.
Recap & Learnings
In this experiment, enrichment improved recommendations, but over-enrichment sometimes increased hallucinations and hurt performance. Assess the catalog and prioritize structured, quality content.
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Recap & Learnings Enrichment works All data points show it improves rankings. Assess your catalog structure Explore different enrichment methods to optimize More text isn’t better Structured quality content wins out. AI rewards content quality, not vendor brands.
- 15:17
Um, and so just to wrap up, you know, enrichment works, assess your catalog structure, and more text isn't better. Um, structured quality content, structured quality content is the one thing that wins out, and AI will reward content quality and not brands. Um, but it does optimize for other trust signals as well.
- 15:41
So thank you, everyone. Uh, if you want to learn more about PayPal's Agentic Commerce services, please visit our booth at P-eleven.