envelopment |
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navigate by keyword : font text brand advertising signage poster presentation logo banner screenshot sign number line label diagram data envelopment analysis blue background method research datum estimation operation signature vessel finger information glasses technology digital cyberspace binary print scan crime authorisation coding system identification code recognition security discovery secure investigation biometric identity authenticate graphic verification futuristic fingerprint contained access concept authentication detective digit safety sphere enclosed captured private electronic computer zero |
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data envelopment analysis on blue background |
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