data loss; missing data; data unavailability
Technical computing term for situations where data is missing, unavailable, or insufficient, often due to corruption, incomplete collection, or transmission errors.
データ欠損が発生したため、解析を中断した。
The analysis was suspended because data loss occurred.
この調査ではデータ欠損が多いため、信頼性
This survey has low reliability due to a lot of missing data.
Compound of データ (data, from English) and 欠損 (deficiency, defect). The exact origin is uncertain, but it likely arose in technical computing contexts.