prefiltering
Initial data culling
Prefiltering is screening or processing data before the main filtering step.
In image processing and signal work, prefiltering removes artifacts or prepares data for downsampling.
In search systems, prefiltering narrows candidates before applying expensive operations: Prefiltering by date made the full-text search much faster.
The term appears wherever a coarse first pass improves efficiency of a finer second pass.
Particles settling in liquid
- coagulationLiquid solidifying into mass
- flocculationParticles clumping into aggregates
- strainingExerting intense effort
- clarificationMaking meaning plain
decantation · settling · skimming · sieving · mesh · strainer · barrier · centrifugation
Evaluative selection process
- validationConfirming truth or accuracy
- preprocessingInitial data preparation steps
- cleansingRemoving dirt or toxins
- normalizationAdjusting to a standard
deduplication · sanitization · thresholding · exclusion · inclusion · criteria · rules · conditions
Standards for judgment
- screeningEvaluative selection process
- narrowingReduction in width
- shortlistingNarrowing to finalists
- cullingSelective population reduction
elimination · triage · candidates · threshold · cutoff · qualifying · disqualifying · winnowing
Substances for chemical analysis
- dilutionReduction in concentration
- centrifugeSpinning density-separation device
- pipettingMeasured liquid transfer
- calibrationAdjusting for measurement accuracy
standards · controls · specimen · protocol · aliquot · buffer · extraction · purification
sedimentation
Particles settling in liquid
- coagulationLiquid solidifying into mass
- flocculationParticles clumping into aggregates
- strainingExerting intense effort
clarification · decantation · settling · skimming · sieving · mesh · strainer · barrier · centrifugation · particulate
screening
Evaluative selection process
- validationConfirming truth or accuracy
- preprocessingInitial data preparation steps
- cleansingRemoving dirt or toxins
normalization · deduplication · sanitization · thresholding · exclusion · inclusion · criteria · rules · conditions · constraints
criteria
Standards for judgment
- screeningEvaluative selection process
- narrowingReduction in width
- shortlistingNarrowing to finalists
culling · elimination · triage · candidates · threshold · cutoff · qualifying · disqualifying · winnowing · sorting
reagents
Substances for chemical analysis
- dilutionReduction in concentration
- centrifugeSpinning density-separation device
- pipettingMeasured liquid transfer
calibration · standards · controls · specimen · protocol · aliquot · buffer · extraction · purification · contamination
prefilter, prefilters, prefiltered, filter, filters, filtered, filtering, filterer, filtrate