SECAI Core · phase 1 of 15 · noun
Machine learning
A component of AI that enables a machine to develop strategies for solving a task given a labeled dataset where features have been manually identified but without further explicit instructions.
The Explain card
- Plain English
- Machine learning is the part of AI where a machine works out its own strategy for a task from a labeled dataset, with humans picking out the features but not writing the rules.
- Example
- A spam filter is fed thousands of emails marked "spam" or "not spam", with features like sender domain and link count identified by engineers. It learns the weighting itself.
- Why it matters
- If the model learns from data, then whoever controls or poisons that data shapes the model's behaviour. Data quality and data security become model security.
- Hook
- Humans label the ingredients, the machine writes the recipe.
Word knowledge
How the word is built, where it came from, and what it sits beside in memory.
In a sentence
Engineers train a machine learning classifier on labeled process trees, then the endpoint agent scores each new process before it can encrypt files.
Why these words
- machine Latin machina, device, from Greek mēkhanē, via Middle French machine supplies the apparatus half, so the learning hangs on a device rather than a person
- learning Old English leornung, the act of getting knowledge names the classroom activity the phrase assigns to that apparatus
Where it came from
- Origin
- English coinage by Arthur Samuel, from Latin machina, device (Greek mēkhanē), via Middle French machine, and Old English leornung, the act of getting knowledge
- Entered the language
- 1959
- What changed
- Machine had meant a structure, then an engine, then any computing apparatus. Learning had meant a person acquiring knowledge. Samuel joined the pair in a 1959 checkers paper, and the compound became the ordinary name for systems trained on examples.
How it is spelled
- Pattern
- ch spells /ʃ/ in French loans, with no t sound
- Pattern
- -ine is a two-syllable ending from Latin -ina
- Pattern
- -ing turns a verb into a noun of activity
- Breaks the pattern
- the noun phrase stays two words; the hyphen appears only when it modifies another noun
- Breaks the pattern
- machine keeps the French ch of chef, not the ch of chair
Spelled like
- chef
- marine
- training
Broken into chunks
-
mach
- machinery
- machinist
- machination
-
ine
- marine
- routine
- medicine
-
learn
- learner
- unlearn
- relearn
-
ing
- training
- computing
- reasoning
What it sits beside
Same subject
- artificial intelligence
- deep learning
- supervised learning
- neural network
Same shape
- machine translation
- machine vision
- deep learning
- statistical learning
Core AI paradigms
Machine compounds
- machine translation
- machine vision
- machine code
Learning compounds
Where it sits in the deck
Phase 1: What AI Is: Core Concepts and Paradigms
You cannot secure, govern, or attack something you cannot define — establish what AI actually is before any other concept can land.
