FAR

The False Accept Rate or FAR (similar to the False Match Rate or FMR) is a measurement of the accuracy of biometric data being recorded by a given system. By its very nature biometric data is organic in origin, and organic data is subject to considerable variance between both individuals and sessions.

With both interface and security-based biometrics, FAR is referred to as the accuracy of the data being checked. A high FAR indicates that there is a wide margin for error in the data being checked, such that whilst it is possible to pick up all variations an individual might use – differences in their gait for example – opening the net that far may incorrectly identify other individuals as being that person.

On the other hand, narrowing the margin for error too much, will effectively lock out an authorised person who maybe has a sore ankle that day, and is walking slightly differently.

With interface biometrics, the situation is a little different. Here biometrics are usually neural codes or EMG readings of muscle potential. A high false accept rate here means that there is a high potential that the neural code will be misread, and an action other than what was intended, triggered. As an extreme example, the person meant to raise their hand with the beer glass in it, but the system falsely interpreted that as another command instead, opening the hand so the beer glass fell to the floor and smashed.

See Also: Biometric, Biometrics, Neural Code, False Match Rate, FMR, False Reject Rate, False Non-Match Rate, EMG

Below, we offer a selection of links from our resource databases which may match this term.

Adaptive Resolution Aerial Perspective Ambient Occlusion Map Axon Tip BAT CAVE Battlespace BeiDou Navigation Satellite System Bone Level Of Detail Bot Bounding Box Bounding Ellipsoid Bounding Swept Sphere Bring Your Own Group BYOG C3 Clipping Control Sensitivity Crowd Simulation Dynamic Hard Shadow ECoG Electrocorticography Exoskeleton False Accept Rate False Match Rate FAR FMR Fog Gradient Foglet Swarm FSAA Full Scene Anti-Aliasing GNSS Goblin Tactics Gold Farming GPS HDI HDRI HEG

Hemoencephalography Hierarchical Radiosity Algorithm High Dynamic Range Imaging Horizontal Field of View HRA Human-Equivalent AI Interactive Dynamic Response Interpupilary Distance Invasive BCI Invasive BMI IPD Layered Construction Lifelogger Lighting Pass LOD Geometry Mana sink Multiple Textures Naive realism Natural Language Answering Netizen Neural Network Nociceptor Passive Marker MoCap Path In The Sky Phase Lag Powerlevel Powerleveling Quantified Self Render Layer Repetitive Strain Injury Rigid Object Animation RSI Sensor Fusion Shadow Pass Shard

Shards Skeletal Animation System Soft Robotics Solid State Photomultiplier SSS Stereoscopic Stereoscopy Subsurface scattering Swarming Synthetic Vision System Tactile Texture Compression Texture Gradient The Bazaar Model The Fresnel Effect Thin Data Stream Time modulated active marker MoCap Track Turing Test Two Handed Input Universe Utility Fog Video Eyewear View Distance Fogging View Frustum Virtual PA Virtual Personal Assistant Volume Raycasting Waldo Whole Body Emulation Zerging Zergling

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