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fix(data): merge 651 confirmed monitor near-duplicate records - #333
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Collapse identical re-imports from the amazon-monitor Kaggle dataset where the same physical monitor was ingested many times under different amazonmon-<row> slugs with byte-identical specs. For each (base_model_slug + full spec fingerprint) cluster, keep the lowest source_row as canonical, union source_urls, and delete the redundant files. Also merge one cross-source duplicate (asus-va24ehe rows 60 & 404: same VA24EHE, two title strings) keeping the cleaner title and adopting the more complete adaptive_sync=FreeSync attribute. 882 -> 231 monitor records. Genuine SKU/config variants left unmerged. Refs #296
Regenerate site/public/v1/monitors from the deduplicated data (python -m app.dump): drop the 651 orphaned detail pages for the merged-away records, rebuild the monitors list (882 -> 231), refresh the asus-va24ehe detail page with the merged adaptive_sync attribute, and update the monitor count in the v1 manifest. Scoped to monitor-attributable dump output only. Refs #296
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🔎 Data verification — Tier 0 (offline existence/trust)Scored by 12/12 categories ? 191,168 records ? diff base develop@ea3f31e Changed records in this PR1 record(s) assessed. %%{init: {"theme":"base","themeVariables":{"pie1":"#3fb950","pie2":"#d29922","pie3":"#f85149","pieStrokeWidth":"0px","pieOpacity":"1"}}}%%
pie showData
title Verification bands — all records
"Green" : 0
"Yellow" : 1
"Red" : 0
Full-dataset baseline191168 record(s) assessed. %%{init: {"theme":"base","themeVariables":{"pie1":"#3fb950","pie2":"#d29922","pie3":"#f85149","pieStrokeWidth":"0px","pieOpacity":"1"}}}%%
pie showData
title Verification bands — all records
"Green" : 32772
"Yellow" : 157341
"Red" : 1055
Hard violations (forced red):
green = authoritative source + complete + consistent · yellow = plausible, needs confirmation · red = sparse/weak source or a hard contradiction. Promotion to |
Member
TechEngine change review: PASS12/12 categories ? 191,168 records ? diff base develop@ea3f31e
Changed data
Changed record examplesmonitor modified
monitor deleted
Heuristic review
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Member
TechEngine validation stats: PASS12/12 categories ? 191,168 records ? diff base develop@ea3f31e
Data summary
Warning Tracked verified coverage is below 50% for monitor 0.0% (0/231), software 0.8% (358/42493), laptop 5.3% (105/1995), tablet 8.3% (288/3459), soc 13.4% (284/2117), all 16.9% (32257/191168), smartphone 18.8% (17581/93407), website 19.0% (7635/40084), and 1 more. Validation notes
Key output:
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Continuing the "near-duplicates in other categories not yet scanned" item after the tablet/watch (#324), smartphone (#329) and laptop (#332) passes, I scanned the monitor category. Scope: 882
data/monitor/<brand>/<year>/<base_model_slug>/<slug>.jsonrecords, all sourced from one Kaggle Amazon monitor dataset (amazon-monitor-durjoychandrapaul).Result: 651 confirmed near-duplicate records merged.
882 → 231.Method
Same approach as the prior passes: normalize slugs/names (punctuation- and brand-prefix-agnostic) and cross-check the specs that must be identical for the same physical panel —
release_date,size_inch,resolution,aspect_ratio,refresh_hz,panel_type,ppi, plus the model number embedded inname. The deterministic merge rule: group bybase_model_slug+ a full spec fingerprint (every field exceptvariant,slug,source_urls); for each cluster keep the lowestsource_rowas canonical, unionsource_urls, and delete the rest.Per-pattern results
slugandvariant.source_row. Kept the lowestsource_row, deleted the redundant files;source_urlswere identical so the union was a no-op and no values changed. Breakdown:asus-va329he84→1 (−83)aopen-aopen-by-acer(32SA2QK 4K) 69→1 (−68)acer-cb27263→1 (−62)acer-sh242y60→1 (−59)acer-xb273k60→1 (−59)acer-xz342cu47→1 (−46)acer-kb252q45→1 (−44)acer-sb240y(G0bi) 44→1 (−43)acer-sb272(EBI) 39→1 (−38)acer-xz320qu31→1 (−30)acer-hdr10(31.5" Nitro 240Hz, two byte-identical price clusters) 74→2 (−72)acer-sb27027→1 (−26)acer-kc242y14→1 (−13)acer-xb273u7→1 (−6)dell-u2723qevsu2723qe): none. Every record already lives under a consistent brand-prefixed base dir.asus-va24eherows 60 and 404 are the same ASUS VA24EHE (23.8", 1920×1080, 75 Hz, IPS, $99) imported with two different Amazon title strings. Kept row 60 (cleaner, untruncated title) and adopted the more completefeatures.adaptive_sync = "FreeSync"from row 404 — a real, documented VA24EHE spec (ASUS product page). No other field differed.Left unmerged (genuine distinct SKUs / ambiguous — documented, not guessed)
These share a coarse
base_model_slugbut are different real products, so they were intentionally kept:acer-eda343cur— 100 Hz/$200 vs 180 Hz/$280 (different refresh SKUs)acer-sb240y— G0bi (black, $95) vs G0wi (white, $110)acer-sb242y— EBI (IPS) vs Hbi ($128)acer-sb272— EBI (new) vs "E … (Renewed)" listingaopen-aopen-by-acer— 32SA2QK (31.5" 4K) vs 27E1 (27" FHD)gigabyte-m27q— M27Q vs M27Q PROhp-hp-series-monitor— Series 5 24" vs 524sa bundlelenovo-lenovo-thinkvision-full— ThinkVision M15 (15.6") vs T22i-30 (21.5")lg-lg-digital-signage— 49UH5F-H (49") vs 86UH5E-B (86")lg-lg-ultragear-gaming— 27" QHD 240 Hz vs 27" 5120×1440 165 Hzlilliput-fa1014-np— 1280×800 non-touch vs 1920×1080 touchsamsung-hdr2000— Odyssey Neo G7 vs Neo G8acer-hdr10residual — thehdr10slug is an importer fallback shared by a few genuinely different Nitros (27" WQHD 170 Hz, 27" FHD 240 Hz, and the 31.5" 240 Hz at two prices); left as-is rather than guess.Placeholder / fabricated-defaults check: clean (no bug)
No equivalent of the phone-batch
battery_mah/weight_gstamping. Spec value distributions across distinct base models are organic (27" popular; 1920×1080 common; 100/165/75 Hz common), each spread over many unrelated models — not one value stamped onto unrelated devices. The one systematic artifact isrelease_date = "2023-01-01"on all 882 records, but that is a uniform dataset-wide import placeholder that affects every record equally, so it is not a dedup signal and is out of scope for this merge. Noting it here for the "placeholder dates" tracker item.Verification
python -m app.validate→ Data validation passed (monitor required-field / slug-convention / filename-match / base-dir checks included).python integrity_check.py <data> --strict→ no hard anomalies (structural section clean: no duplicate monitor slugs, no slug/filename mismatches, no verified-without-source); only the pre-existing advisory CPU/GPU ratio outliers print, which the gate treats as review-only.python -m app.dump), scoped to the monitor collection: the 651 orphaned detail pages were pruned,v1/monitors/index.jsonrebuilt (231), theasus-va24ehedetail page picked up the mergedadaptive_sync, and thev1manifest monitor count updated882 → 231. Unrelated pre-existing serialization drift in other collections was deliberately kept out to keep this diff monitor-scoped and reviewable.Closes #296