01
AI Technique
Definition
A method for organizing and using large, changing, or incomplete knowledge so an AI system can solve problems efficiently.
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Agentic AI Glossary
Classical AI, NLP & Linguistics
Classical AI, NLP & Linguistics terms and explanations from the Agentic AI Glossary.
159 terms in this chapter
02
Artificial Environment
Definition
A simulated or software-created setting where an agent acts without directly operating in the physical world.
03
Auditory Learning
Definition
Learning by listening to spoken information, audio examples, or sound-based instruction.
04
Bodily-Kinesthetic Intelligence
Definition
The ability to use body movement or physical control to solve problems or perform skilled tasks.
05
Common Sense Verification
Definition
The task of checking whether a statement or conclusion matches everyday knowledge about how the world works.
06
Deductive Reasoning
Definition
Reasoning that starts from a general rule and applies it to a specific case to reach a logical conclusion.
07
Episodic Learning
Definition
Learning from remembered sequences of events or experiences that occurred over time.
08
Expert Tasks
Definition
AI tasks that require specialized domain knowledge, such as diagnosis, financial analysis, or engineering fault finding.
09
Formal Tasks
Definition
AI tasks based on formal rules or symbols, such as mathematics, logic, games, and theorem proving.
10
Game AI
Definition
AI used to reason about possible moves, strategies, and outcomes in games such as chess, poker, or tic-tac-toe.
11
Human Intelligence
Definition
The natural ability of people to learn, reason, communicate, perceive, remember, and adapt to new situations.
12
Inductive Reasoning
Definition
Reasoning that uses specific observations to form a broader general conclusion that may still be uncertain.
13
Intelligence
Definition
The ability to reason, learn, solve problems, use language, remember information, and adapt to new situations.
14
Intelligent Robot
Definition
A robot that can sense its surroundings, process information, learn from experience, and adapt its actions.
15
Intelligent System
Definition
A computer, robot, or software system that uses AI methods to perceive, reason, learn, or act toward a goal.
16
Interpersonal Intelligence
Definition
The ability to understand other people's emotions, beliefs, intentions, and social signals.
17
Intra-personal Intelligence
Definition
The ability to understand one's own feelings, goals, motivations, and internal mental state.
18
Learning
Definition
The process of gaining knowledge or skill from study, practice, instruction, examples, or experience.
19
Linguistic Intelligence
Definition
The ability to understand and use spoken or written language effectively.
20
Logical-Mathematical Intelligence
Definition
The ability to reason with numbers, relationships, abstractions, and logical structures.
21
Machine Intelligence
Definition
The ability of a machine or software system to perform tasks that normally require human-like reasoning, learning, or perception.
22
Motor Learning
Definition
Learning physical actions or movement patterns through repeated practice and correction.
23
Mundane Tasks
Definition
Everyday tasks such as perception, language use, common sense, and movement that are natural for humans but hard for machines.
24
Musical Intelligence
Definition
The ability to recognize, create, and reason about sound patterns such as pitch, rhythm, and melody.
25
Observational Learning
Definition
Learning by watching another person, agent, or system perform a behavior and imitating it.
26
Perceptual Learning
Definition
Learning to recognize, distinguish, or classify stimuli based on previous sensory experience.
27
Problem Solving
Definition
The process of moving from a current state to a desired goal by choosing actions that overcome obstacles.
28
Relational Learning
Definition
Learning based on relationships among objects or properties rather than isolated features alone.
29
Spatial Intelligence
Definition
The ability to understand, transform, and reason about visual or spatial relationships.
30
Spatial Learning
Definition
Learning from maps, images, layouts, movement paths, or other visual-spatial signals.
31
Stimulus-Response Learning
Definition
Learning to perform a particular behavior when a specific trigger or stimulus appears.
32
Task Classification
Definition
A way to group AI work into categories such as mundane tasks, formal tasks, and expert tasks.
33
Theorem Proving
Definition
The use of logic and search to prove that a mathematical or formal statement follows from known rules or assumptions.
34
Vision System
Definition
An AI system that interprets visual input such as images, scenes, maps, faces, or objects.
35
Crisp Input
Definition
A precise numerical input value before it is converted into fuzzy membership levels.
36
Crisp Output
Definition
A definite numerical result produced after fuzzy reasoning is converted back into a precise value.
37
Defuzzification
Definition
The process of converting fuzzy output values into a single crisp output value.
38
Defuzzification Module
Definition
The fuzzy-logic component that transforms fuzzy inference results into a usable crisp value.
39
Degree of Membership
Definition
A number between 0 and 1 that shows how strongly an element belongs to a fuzzy set.
40
Fuzzification
Definition
The process of converting crisp inputs into fuzzy sets using membership functions.
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Fuzzification Module
Definition
The fuzzy-logic component that maps precise input values into fuzzy linguistic categories.
42
Fuzzy Inference
Definition
Reasoning over fuzzy inputs and rules to produce fuzzy conclusions.
43
Fuzzy Input
Definition
Input represented with degrees of possibility rather than one exact true-or-false value.
44
Fuzzy Logic
Definition
A reasoning method that handles partial truth and uncertainty instead of only true or false values.
45
Fuzzy Logic System
Definition
A system that uses fuzzy sets, rules, and inference to produce useful outputs from uncertain inputs.
46
Fuzzy Output
Definition
A fuzzy conclusion produced by an inference engine before defuzzification.
47
Fuzzy Rule Base
Definition
A collection of IF-THEN rules used by a fuzzy system to make decisions.
48
Fuzzy Set
Definition
A set where elements can partially belong with membership values between 0 and 1.
49
Gaussian Membership Function
Definition
A smooth bell-shaped membership function used to represent gradual fuzzy categories.
50
IF-THEN Rule
Definition
A rule that connects a condition with an action or conclusion, often used in fuzzy and expert systems.
51
Linguistic Term
Definition
A word or phrase such as cold, warm, or hot that represents a fuzzy category.
52
Linguistic Variable
Definition
A variable whose values are words or phrases instead of only numbers.
53
Membership Function
Definition
A function that assigns each input value a degree of membership in a fuzzy set.
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Singleton Membership Function
Definition
A membership function that assigns membership at a single point or exact value.
55
Trapezoidal Membership Function
Definition
A membership function shaped like a trapezoid, often used for ranges with a flat middle.
56
Triangular Membership Function
Definition
A simple membership function shaped like a triangle, commonly used in fuzzy systems.
57
Universe of Discourse
Definition
The complete range of values over which a fuzzy variable and its membership functions are defined.
58
Context-Free Grammar
Definition
A grammar where each rewrite rule has a single nonterminal symbol on the left side.
59
Discourse
Definition
The way connected sentences or utterances influence the meaning of each other.
60
Discourse Integration
Definition
The NLP step that interprets a sentence using the meaning of surrounding sentences.
61
Lexical Ambiguity
Definition
Uncertainty caused when a word can have multiple meanings or grammatical roles.
62
Lexical Analysis
Definition
The NLP step that breaks text into meaningful units such as paragraphs, sentences, and words.
63
Lexicon
Definition
The collection of words and phrases known in a language or NLP system.
64
Morpheme
Definition
The smallest meaningful unit in a language, such as a root, prefix, or suffix.
65
Morphology
Definition
The study of how words are built from smaller meaningful units.
66
Natural Language Processing
Definition
The AI field that helps computers understand, analyze, generate, or act on human language.
67
Noun Phrase
Definition
A group of words centered on a noun that can act as a subject, object, or complement.
68
Parse Tree
Definition
A tree structure that shows how a sentence is built from grammar rules.
69
Parsing
Definition
The process of analyzing sentence structure according to grammar rules.
70
Phonology
Definition
The study of how speech sounds are organized in a language.
71
Pragmatic Analysis
Definition
The NLP step that interprets what a speaker likely means using situation and world knowledge.
72
Pragmatics
Definition
The study of how context affects the meaning and use of language.
73
Referential Ambiguity
Definition
Uncertainty about what a pronoun or reference points to in a sentence or conversation.
74
Rewrite Rule
Definition
A grammar rule that expands one symbol into a sequence of other symbols.
75
Semantic Analysis
Definition
The NLP step that checks meaning and maps sentence structure to concepts in a domain.
76
Semantics
Definition
The study of word and sentence meaning.
77
Sentence Planning
Definition
The NLG step that selects words, phrasing, tone, and sentence organization.
78
Speaker-Dependent Speech Recognition
Definition
Speech recognition that is trained or tuned for a particular speaker's voice.
79
Speaker-Independent Speech Recognition
Definition
Speech recognition designed to work across many speakers without speaker-specific training.
80
Speech
Definition
Spoken language used as input to or output from an AI or NLP system.
81
Speech Recognition
Definition
The process of identifying what words were spoken from an audio signal.
82
Syntactic Ambiguity
Definition
Uncertainty caused when a sentence can be parsed into more than one structure.
83
Syntactic Analysis
Definition
The NLP step that checks grammar and the structural relationships among words.
84
Syntax
Definition
The rules for arranging words into valid phrases and sentences.
85
Terminal Symbol
Definition
A grammar symbol that appears in the final sentence and is not expanded further.
86
Text Planning
Definition
The NLG step that decides what content should be included in the generated text.
87
Text Realization
Definition
The NLG step that turns a sentence plan into actual sentence structure and wording.
88
Top-Down Parser
Definition
A parser that starts with a high-level grammar symbol and rewrites it until it matches the input sentence.
89
Translation Engine
Definition
A system component that converts text from a source language into a target language.
90
Verb Phrase
Definition
A group of words centered on a verb that describes an action, state, or event.
91
Voice Recognition
Definition
The process of identifying who is speaking from characteristics of a voice.
92
World Knowledge
Definition
General knowledge about people, objects, events, and situations used to interpret language.
93
Written Text
Definition
Language represented as characters or words rather than speech audio.
94
Backward Chaining
Definition
An inference strategy that starts with a possible conclusion and works backward to find supporting facts.
95
Blackboard
Definition
A shared memory area used by cooperating expert systems or components to exchange information.
96
Declarative Knowledge
Definition
Knowledge that states facts, relationships, or truths about a domain.
97
Domain Expert
Definition
A person with deep practical knowledge in the problem area an expert system is designed to solve.
98
Domain Knowledge
Definition
Specialized knowledge about a particular field, task, or problem area.
99
Expert System
Definition
A computer application that solves complex domain problems using expert-level knowledge and inference rules.
100
Expert System Development Environment
Definition
The hardware, programming tools, languages, and databases used to build an expert system.
101
Explanation Facility
Definition
An expert-system feature that explains how a recommendation or conclusion was reached.
102
Factual Knowledge
Definition
Domain information that is widely accepted as true by experts or scholars.
103
Forward Chaining
Definition
An inference strategy that starts from known facts and applies rules forward to reach conclusions.
104
Heuristic Knowledge
Definition
Practical rule-of-thumb knowledge based on experience, judgment, evaluation, or experimentation.
105
Heuristics
Definition
Experience-based rules or shortcuts that guide problem solving when exact methods are costly or unavailable.
106
Human Expert
Definition
A knowledgeable person whose expertise is captured or consulted when building an expert system.
107
Inference Engine
Definition
The expert-system component that applies rules to facts and knowledge to derive conclusions.
108
JESS
Definition
Java Expert System Shell, a Java-based shell used to build rule-based expert systems.
109
Knowledge Acquisition
Definition
The process of gathering domain knowledge from experts, documents, cases, or observations for an expert system.
110
Knowledge-Based Expert System
Definition
An expert system that uses a knowledge base and inference engine to solve domain-specific problems.
111
Knowledge Engineer
Definition
A specialist who collects, organizes, and encodes expert knowledge for an AI or expert system.
112
Knowledge Engineering
Definition
The discipline of acquiring, structuring, and representing expert knowledge for AI systems.
113
Knowledge Representation
Definition
The method used to organize knowledge so an AI system can reason over it.
114
LISP
Definition
A symbolic programming language historically used for building AI and expert-system applications.
115
Procedural Knowledge
Definition
Knowledge about how to perform steps, methods, or procedures to complete a task.
116
PROLOG
Definition
A logic programming language historically used for rule-based reasoning and AI applications.
117
Prototype
Definition
An early working version of a system used for testing, feedback, and refinement.
118
Rapid Prototyping
Definition
A development approach that quickly builds working models so users and engineers can refine requirements.
119
Rule
Definition
A knowledge representation pattern that links conditions to conclusions or actions, often written as IF-THEN-ELSE.
120
Rule-Based Expert System
Definition
An expert system that reasons by repeatedly applying IF-THEN rules to facts.
121
Rule Conflict
Definition
A situation where multiple expert-system rules apply at the same time and the inference engine must choose among them.
122
Shell
Definition
An expert-system framework that provides inference, interface, and explanation features without domain knowledge.
123
User Interface
Definition
The part of an expert system that lets users ask questions, provide inputs, and receive explanations.
124
Vidwan
Definition
An expert-system shell developed in India for encoding knowledge as IF-THEN rules.
125
Analog Signal
Definition
A continuous signal, such as speech waveform or image data, used as raw input in robotic systems.
126
Autonomous Robot
Definition
A robot that can operate independently without direct external control.
127
Ball Wheel
Definition
An omnidirectional spherical wheel that can move in multiple directions.
128
Biometrics
Definition
The use of measurable human traits such as face, fingerprint, or voice for identification.
129
Camera Sensor
Definition
A vision sensor that captures images or video so a robot can perceive visual information.
130
Castor Wheel
Definition
A wheel that rotates around both its axle and an offset steering joint for easier turning.
131
Computer Vision
Definition
The AI field that extracts, analyzes, and understands useful information from images or video.
132
Electric Motor
Definition
A robotic actuator that converts electrical energy into rotational movement.
133
Estimating Position
Definition
A computer-vision task that determines an object's position relative to a camera or scene.
134
Face Detection
Definition
A computer-vision task that locates human faces in images or video.
135
Gait
Definition
A repeated pattern of leg movements used by a walking robot to move.
136
Gesture Analysis
Definition
A computer-vision task that interprets human body or hand movements.
137
Image Acquisition Device
Definition
Hardware such as a camera that captures visual input for a computer-vision system.
138
Legged Locomotion
Definition
Robot movement using one or more legs, often useful on uneven terrain.
139
Mechanical Construction
Definition
The physical form, structure, and mechanical design of a robot.
140
Muscle Wire
Definition
A wire actuator that contracts when electric current passes through it.
141
Object Recognition
Definition
A computer-vision task that identifies objects in images or video.
142
OCR
Definition
Optical character recognition, the process of converting scanned or image-based text into editable text.
143
Omni-Wheel
Definition
A wheel with rollers that allows sideways or multidirectional movement.
144
Piezo Motor
Definition
A motor that uses piezoelectric materials to create precise motion.
145
Pneumatic Air Muscle
Definition
A soft actuator that contracts when air pressure changes.
146
Power Supply
Definition
The battery, solar, hydraulic, pneumatic, or electrical source that powers a robot.
147
Remote Sensing
Definition
Collecting information about an object or area from a distance using sensors or imaging devices.
148
Robot
Definition
An artificial agent that acts in the physical world through sensors, computation, and effectors.
149
Robot Locomotion
Definition
The mechanism that enables a robot to move through its environment.
150
Robot Program
Definition
The software logic that determines what a robot does, when it acts, and how it performs actions.
151
Robotics
Definition
The AI and engineering field focused on designing, building, and controlling robots.
152
Slip/Skid Locomotion
Definition
Robot movement using tracks or skid steering, often seen in tank-like vehicles.
153
Standard Wheel
Definition
A wheel that rotates around its axle and supports straightforward rolling motion.
154
Swedish Wheel
Definition
An omni-wheel design with angled rollers that supports multidirectional movement.
155
Tactile Sensor
Definition
A sensor that detects touch, pressure, or contact forces.
156
Tracked Locomotion
Definition
Robot movement using continuous tracks for stability and traction.
157
Ultrasonic Motor
Definition
A motor that uses ultrasonic vibration to produce motion, often for precise positioning.
158
Vision Sensor
Definition
A sensor that captures visual data, allowing a robot or AI system to perceive its surroundings.
159
Wheeled Locomotion
Definition
Robot movement using wheels, usually more power-efficient and easier to implement than legged motion.
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