Glossary

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Edge Computing(also: Edge AI, Edge Intelligence)

Edge computing is a computing paradigm where data processing occurs on devices physically close to the user rather than in centralized cloud servers. For accessibility applications, edge computing offers important advantages including reduced latency for real-time assistive…

Egocentric Spatial Reasoning(also: First-Person Spatial Understanding, User-Relative Spatial Reasoning)

The ability of a system to understand and describe the spatial positions of objects relative to the user's body and perspective, rather than from a bird's-eye or absolute reference frame. For AI systems assisting blind travelers, egocentric spatial reasoning is critical —…

Embodied Conversational Agent(also: ECA, Virtual Agent, Animated Agent)

A computer-generated animated character designed to interact with human users using multiple simultaneous communication channels — typically speech, eye gaze, facial expression, head and body posture, and hand gestures. ECAs are used in tutoring systems, customer-service agents,…

Emotion Recognition(also: Facial Emotion Recognition, FER, Affect Recognition)

AI technology that attempts to identify human emotional states from facial expressions, voice patterns, body language, or physiological signals. Emotion recognition systems have been widely criticized for poor accuracy, cultural bias, and particular harm to people with…

Engagement Detection(also: Engagement Monitoring, Engagement Recognition)

The use of sensors, computer vision, or other technologies to automatically assess whether a person is actively engaged with a task, device, or activity. Engagement detection systems typically monitor observable behaviours such as gaze direction, touch interaction patterns,…

Epistemic Barrier(also: Knowledge Barrier, Epistemic Divide)

A barrier to collaboration or understanding that arises from fundamental differences in knowledge systems, expertise, values, and ways of knowing between groups. In the context of sign language AI development, epistemic barriers exist between machine learning practitioners (who…

Ethics Washing(also: Ethics-Washing)

The practice of creating the illusion of high ethical standards through superficial transparency efforts, ethics committees, or principles documentation while actual practices do not reflect these stated values. In technology contexts, ethics washing may involve publishing AI…

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