red1xe/kumtel-appliance-search-tr

Kumtel Appliance Search Relevance (TR)

A small, fully-judged Turkish e-commerce search benchmark in the home appliance domain, labelled with the four ESCI classes used by Trendyol/TY-ecomm-asure-relevance (relevant, substitute, complementary, irrelevant).

Built to answer one question: how well do Trendyol's open e-commerce search models handle Turkish appliance queries — including need-based phrasing, typos, missing Turkish characters and English?

Products (corpus)	117 Kumtel / Zenon products from the public kumtel.com catalogue, 42 categories
Queries	83 (head 26 · attribute 26 · need/intent 22 · model code 2 · noisy/cross-lingual 7)
Judgements	9,711 — every query × every product (no pooling bias)
Label mix	245 relevant · 566 substitute · 165 complementary · 8,735 irrelevant

Files

catalog.jsonl — one product per line

{"id": "p047", "title": "Kumtel LX-3575 45 Litre Beyaz Turbo Mini Fırın", "brand": "Kumtel",
 "category_key": "firin_mini", "category": "elektrikli ev aletleri / fırın / mini fırın",
 "sellers": ["Kumtel"], "attributes": {"renk": "beyaz", "hacim": "45 l", "fan": "var", "model": "LX-3575"},
 "url": "https://www.kumtel.com/...",
 "document": "title: kumtel lx-3575 45 litre beyaz turbo mini fırın\ncategory: ...\n..."}

document is pre-rendered in the exact 7-field format expected by TY-ecomm-asure-relevance (title / category / brand / gender / age_group / marketplace_sellers / attributes, lowercased, NFC).

queries.jsonl — {"query_id": "q001", "query": "ankastre set", "type": "head"}

qrels.jsonl — {"query_id": "q001", "product_id": "p001", "label": "relevant"}

Labelling

Labels come from explicit, reviewable per-query rules (category + title constraints), applied to the full catalogue, then spot-corrected by hand (overrides.csv in the source repo). Priority is relevant > substitute > complementary > irrelevant. Conventions used:

• relevant – satisfies the query's product type and every stated attribute (colour, size, capacity…).
• substitute – same or neighbouring product type that misses an attribute (e.g. a 40 L mini oven for "45 litre mini fırın", a quartz heater for "fanlı ısıtıcı").
• complementary – used together with the query product (e.g. a hood for an induction-hob query, individual built-in pieces for a built-in-set query, the V60 brewing scale for a filter coffee machine).
• irrelevant – everything else.

Suggested metrics

nDCG@10 with ESCI gains (E=1, S=0.1, C=0.01, I=0), Recall@10 and MRR on relevant, plus 4-way classification accuracy / macro-F1 for cross-encoders. Reference script: run_eval.py.

Results

See results.md (filled in after running the models).

Limitations

• Small corpus (117 products) from a single brand — good for error analysis, not for leaderboard claims.
• One annotator; rule-based labels encode that annotator's judgement of "substitute" vs "complementary".
• Product titles only (no descriptions / images); attributes are regex-extracted from titles.
• Snapshot of the public catalogue on 2026-09-25; prices intentionally omitted.

Source & licence

Product titles, categories and URLs are from the public kumtel.com website. Queries and labels are original. Released under CC BY 4.0 — confirm with Kumtel before publishing.