classifier
gb/klˈæsɪfˌaɪɚ/ us/klˈæsɪfˌaɪɚ/
C1
English
osztályozó, klasszifikátor, osztályozószó
NOUN
C1
TECHNICAL
1
osztályozó
C1
Usage pattern:
[type] classifier; classifier for [task]; train/build/evaluate a classifier
The email filter uses a classifier to label messages as spam or not spam.
Az e-mail-szűrő egy osztályozó segítségével spamnek vagy nem spamnek jelöli az üzeneteket.
We trained a classifier to distinguish images of cats from images of dogs.
Betanítottunk egy osztályozót, hogy megkülönböztesse a macskákról készült képeket a kutyákról készült képektől.
A good classifier needs representative training data and clear category labels.
Learner examples
The classifier puts each photo into a group.
Az osztályozó minden képet egy csoportba sorol.
This classifier can find spam emails.
Ez az osztályozó képes felismerni a spam e-maileket.
Common mistake:
Do not use classifier for a model that predicts a number; that is usually called a regressor.
Meaning
model that assigns categories
Collocations
binary classifier
|multiclass classifier
|train a classifier
|build a classifier
|evaluate a classifier
|classifier accuracy
|classifier output
|supervised classifier
|probabilistic classifier
|neural classifier
Synonyms
classification model (Standard technical synonym in machine learning.)
|
categorizer (Less formal; emphasizes putting items into categories.)
Antonyms
regressor (A model that predicts continuous numerical values rather than categories.)
Themes
technology
|data_science
|ai
|statistics
Definition
A computer model that decides which group something belongs to.
An algorithm or statistical model that assigns data items to one of a set of predefined classes or categories.
NOUN
C1
2
osztályozó
B2
Usage pattern:
classifier of [things]; classifier for [things]
Each volunteer acted as a classifier, assigning the survey answers to broad topics.
Minden önkéntes osztályozóként működött, és a kérdőív válaszait tág témakörökbe sorolta.
The archive uses a simple classifier to group documents by subject and date.
Az archívum egy egyszerű osztályozót használ arra, hogy a dokumentumokat tárgy és dátum szerint csoportosítsa.
A trained classifier checked whether each sample belonged in the high-risk group.
Learner examples
The classifier sorts the cards by color.
Az osztályozó szín szerint rendezi a kártyákat.
She worked as a classifier for the research project.
A kutatási projektben osztályozóként dolgozott.
Common mistake:
Classifier names the person or tool; classification is the process or system.
Meaning
person or thing that sorts
Collocations
automatic classifier
|human classifier
|document classifier
|image classifier
|text classifier
|topic classifier
|data classifier
|content classifier
Synonyms
sorter (More everyday; often used for physical objects or simple grouping.)
|
categorizer (Close in meaning; emphasizes assigning categories.)
Themes
organization
|information
|work
Definition
Someone or something that sorts things into groups.
A person, organization, device, or system that classifies things by putting them into groups according to a rule or scheme.
NOUN
C1
TECHNICAL
3
Usage pattern:
classifier + noun; number + classifier + noun
In Mandarin, the classifier běn is used with many words for books and bound items.
A mandarinban a běn osztályozószót sok, könyveket és más kötött tárgyakat jelölő szóval használják.
Many classifier languages require a classifier in phrases like "three books" or "that animal."
Sok osztályozós nyelvben kötelező osztályozószót használni az olyan kifejezésekben, mint a „három könyv” vagy „az az állat”.
The teacher explained that the choice of classifier can depend on the shape or type of the noun.
Learner examples
Chinese uses classifiers when people count many nouns.
A kínai sok főnév megszámlálásakor osztályozószavakat használ.
The classifier comes between the number and the noun.
Az osztályozószó a számnév és a főnév közé kerül.
Common mistake:
Do not confuse a classifier with an adjective; it is a grammatical marker, not usually a descriptive word.
Meaning
grammar word for counting nouns
Collocations
noun classifier
|numeral classifier
|classifier language
|classifier system
|classifier marker
|use a classifier
|Mandarin classifier
|Japanese classifier
|measure classifier
|classifier phrase
Synonyms
measure word (Common learner term, especially for Chinese; sometimes narrower than classifier.)
|
numeral classifier (More specific term for a classifier used with numbers.)
Themes
linguistics
|grammar
|languages
Definition
A grammar word used with nouns in some languages when you count or point to things.
In grammar, a word or morpheme, used especially with numbers or demonstratives in some languages, that marks the type or counting unit of a noun.
NOUN
C2
TECHNICAL
4
Usage pattern:
ASL classifier; classifier for [object/person/vehicle]
In ASL, a classifier can show a car moving down a road or a person standing in a room.
Az ASL-ben egy klasszifikátor megmutathatja, hogy egy autó halad az úton, vagy hogy egy ember áll egy szobában.
The students practiced using classifiers to describe the layout of furniture.
A diákok klasszifikátorok használatát gyakorolták a bútorok elhelyezkedésének leírására.
Some teachers now prefer the term depicting construction for what older ASL materials call a classifier.
Learner examples
The classifier shows a car moving.
A klasszifikátor egy autó mozgását mutatja.
We learned classifiers in ASL class.
Az ASL-órán klasszifikátorokat tanultunk.
Common mistake:
Not every handshape in a sign language is a classifier; the term refers to a particular grammatical use.
Meaning
sign-language class handshape
Collocations
ASL classifier
|classifier handshape
|classifier construction
|classifier predicate
|use classifiers
|spatial classifier
|handling classifier
|entity classifier
Synonyms
depicting sign (Often used in newer sign-linguistics terminology; not identical in every teaching tradition.)
|
classifier handshape (Emphasizes the handshape used as the classifier.)
Themes
sign_language
|linguistics
|grammar
|communication
Definition
In a sign language, a handshape that can stand for a type of thing and show where it is or how it moves.
In sign linguistics and sign-language teaching, a handshape or sign element that represents a class of things and can show their movement, position, size, shape, or handling.
NOUN
C2
TECHNICAL
5
osztályozó
C1
Usage pattern:
[material] classifier; classifier for [particles/materials]
The plant uses a classifier to separate fine powder from larger particles.
Az üzemben egy osztályozó választja el a finom port a nagyobb szemcséktől.
Oversized material is returned to the mill after it leaves the classifier.
A túl nagy szemcseméretű anyagot azután visszavezetik a malomba, hogy elhagyja az osztályozót.
An air classifier sorts particles by using a controlled stream of air.
Learner examples
The classifier separates the powder.
Az osztályozó szétválasztja a port.
Small particles leave the classifier first.
A kisebb szemcsék hagyják el először az osztályozót.
Common mistake:
In everyday English, separator is usually more understandable than this technical use of classifier.
Meaning
machine separating materials
Collocations
air classifier
|powder classifier
|particle classifier
|spiral classifier
|hydraulic classifier
|classifier mill
|classifier wheel
|mineral classifier
Synonyms
separator (Broader and more common; may separate things by many methods.)
|
sizer (Used when the main purpose is sorting by size.)
Themes
engineering
|manufacturing
|mining
|materials
Definition
A machine that separates material into different groups, such as large and small pieces.
A machine or component that separates particles or materials into classes, especially by size, weight, or density.
Grammar
Dictionary form
classifier
IPA
GB/klˈæsɪfˌaɪɚ/
US/klˈæsɪfˌaɪɚ/
Syllables & stress
clas - si - fi - er (4 syllables)
Stress on 1st syllable (clas)
Word forms
Noun
- Base: classifier
- Plural: classifiers
Expressions
binary classifier
1/bˈaɪnɚi klˈæsɪfˌaɪɚ/
fixed phrase
technical
two-category classification model
A model that chooses between two groups.
Examples
- The team built a binary classifier to identify transactions as fraudulent or legitimate.
- A spam filter is often treated as a binary classifier: spam or not spam.
- The binary classifier performed well on positive cases but missed many negative ones.
Learner examples
- The binary classifier chooses yes or no.
- This binary classifier finds spam emails.
classifier construction
1/klˈæsɪfˌaɪɚ kənstɹˈʌkʃən/
fixed phrase
technical
sign-language depicting structure
A sign-language structure that uses a classifier handshape to show what something is like or how it moves.
Examples
- The ASL lesson focused on classifier constructions for vehicles moving through space.
- A classifier construction can show where a cup is placed on a table.
- Students used classifier constructions to describe the shape and movement of animals.
Learner examples
- The classifier construction shows movement.
- We practiced classifier constructions in ASL class.
decision-tree classifier
1/dɪsˈɪʒən tɹˈi klˈæsɪfˌaɪɚ/
fixed phrase
technical
tree-based classification model
A model that asks a series of questions to choose a group.
Examples
- A decision-tree classifier is easy to explain because each branch shows a rule.
- The decision-tree classifier first checked the user's age and then the purchase amount.
- They compared a decision-tree classifier with a logistic regression model.
Learner examples
- The decision-tree classifier follows simple rules.
- Each branch helps the model choose a class.
k-nearest-neighbor classifier
1/kˈeɪ nˈɪɹɪst nˈeɪbɚ klˈæsɪfˌaɪɚ/
fixed phrase
technical
neighbor-based classification model
A model that looks at the most similar examples and chooses the most common group.
Examples
- A k-nearest-neighbor classifier labels a point by looking at nearby labeled points.
- The k-nearest-neighbor classifier became slow as the training set grew.
- Changing k from 3 to 7 improved the classifier's accuracy.
Learner examples
- The k-nearest-neighbor classifier checks nearby examples.
- The value of k can change.
multiclass classifier
1/mˈʌltɪkləs klˈæsɪfˌaɪɚ/
fixed phrase
technical
many-category classification model
A model that chooses one group from three or more groups.
Examples
- The app uses a multiclass classifier to identify bird species from photos.
- A multiclass classifier must choose among categories such as politics, sports, business, and entertainment.
- They converted the problem from binary classification to a multiclass classifier with five labels.
Learner examples
- The multiclass classifier chooses one of five animals.
- This model is a multiclass classifier.
naive bayes classifier
1/nˌaɪˈiv bˈeɪz klˈæsɪfˌaɪɚ/
fixed phrase
technical
Bayesian probabilistic classifier
A simple probability-based model often used for text classification.
Examples
- A Naive Bayes classifier can work surprisingly well for spam detection.
- The course used a Naive Bayes classifier as an introduction to probabilistic models.
- The Naive Bayes classifier estimated the most likely topic for each document.
Learner examples
- The Naive Bayes classifier is useful for text.
- It uses probabilities to choose a class.
random forest classifier
1/ɹˈændəm fˈɔɹɪst klˈæsɪfˌaɪɚ/
fixed phrase
technical
many-tree classification model
A model that uses many decision trees and combines their answers.
Examples
- The random forest classifier gave more stable results than a single decision tree.
- They used a random forest classifier to predict whether a customer would cancel a subscription.
- Feature importance scores from the random forest classifier helped the team understand the model.
Learner examples
- The random forest classifier uses many trees.
- It combines many answers into one class.
support vector machine classifier
1/səpˈɔɹt vˈɛktɚ məʃˈin klˈæsɪfˌaɪɚ/
fixed phrase
technical
margin-based classification model
A model that tries to draw the best boundary between groups.
Examples
- The support vector machine classifier handled the small dataset better than the neural network.
- They trained a support vector machine classifier to separate positive and negative reviews.
- A linear support vector machine classifier can be effective when the classes are nearly separable.
Learner examples
- The support vector machine classifier draws a boundary.
- People often call it an SVM.