Pragmatics
in Computational Linguistics
1. Introduction
Language does not fully express everything we mean. The
actual intention of a speaker is much deeper than the literal words spoken.
According to Levinson, an utterance is not a perfect snapshot of the scene it
describes, but only a sketch of the speaker’s intention.
This difference between what is said and what is meant, and
how listeners fill the gap using context, forms the basis of Pragmatics.
In simple words:
Pragmatics is the study of how meaning changes depending on
context, intentions, shared knowledge, and social situations.
Thus, pragmatics explores:
·
Why
we often mean more than we say
·
How
listeners understand the hidden meanings
·
How
context shapes interpretation
2. Modeling Context –
Common Ground
Pragmatics depends on a shared understanding between the speakers
and the listeners called common ground or conversational record, introduced by
Stalnaker .
What is Common Ground?
The common ground is
the set of propositions that all participants agree are true for the sake of
the conversation.
It includes:
·
World
knowledge (facts, culture)
·
Information
about speakers (identity, relations)
·
Physical
& situational context (time, place, objects present)
·
Previous
utterances in the conversation
Stalnaker explains that language updates the common ground,
and the common ground guides the interpretation of language. They affect each
other continuously.
3. Context Dependence
Many linguistic expressions change meaning with the
situation. For example, the words - I, here, now, she, tomorrow. Their meaning
depends on who speaks, when, and where.
Example
“I am feeding the dogs now.”
To interpret this, we must know:
· Who is “I” (a common man, an actor, a
prime minister)
· What location counts as “here” (where
food is a scarcity?)
· What time is “now” (when the dog is
hungry?)
Thus, context controls interpretation. This makes pragmatics
essential.
4. Gricean Pragmatics –
Cooperative Principle
H. P. Grice explained that conversations work because both
listener and speaker cooperate to understand each other. He defined the
Cooperative Principle, supported by four conversational maxims. Grice said that
conversation works smoothly because speakers and listeners cooperate.
Even when we do not say everything directly, we assume the other person is
trying to be helpful and meaningful.
Grice explained this cooperation through four conversational
maxims – Quality, Quantity, Relation, Manner.
1. Maxim of Quality (Truth)
Rule: Do
not say what you believe is false or for which you have no evidence.
Example (Following the maxim):
A: “Is it raining outside?”
B: “Yes, I just came in and it’s raining.”
Example (Violating the maxim):
B: “Yes, it’s raining.” (when it
is actually sunny)
Meaning: We expect speakers to tell
the truth.
2. Maxim of Quantity (Information)
Rule: Say as much as needed—no
more, no less.
Example (Following the maxim):
A: “Where do you live?”
B: “In Ahmedabad.”
Too little information:
B: “Somewhere in Gujarat.”
Too much information:
B: “In Ahmedabad, near the river, third
floor, blue building…”
Meaning: Give exactly the required
amount of information.
3. Maxim of Relation (Relevance)
Rule: Be relevant to the topic.
Example (Following the maxim):
A: “Did you finish the assignment?”
B: “Yes, I submitted it this morning.”
Violating the maxim:
A: “Did you finish the assignment?”
B: “The weather is very hot today.”
Meaning: Responses should stay
connected to the conversation.
4. Maxim of Manner (Clarity)
Rule: Be clear, brief, and
orderly. Avoid confusion and ambiguity.
Clear answer:
A: “How do I reach the office?”
B: “Go straight, take the second left, and you’ll see it.”
Unclear answer:
B: “Well, you know, there’s a road
and something like a turn…”
Meaning: Speak clearly and simply.
One Combined Example (All Maxims Working Together)
A: “Where is the library?”
B: “It’s on the ground floor, next to the NCC office.”
✔ Quality – True information
✔ Quantity – Just enough detail
✔ Relation – Relevant answer
✔ Manner – Clear and simple
5. Conversational
Implicature
An implicature occurs when the speaker implies something
without saying it directly. It can be Context-dependent. The implied meaning
depends on the situation and background knowledge.
Example:
Teacher: “Is Rohan regular in class?”
Colleague: “He attends on most days.”
Implied meaning: Rohan is not very
regular.
6. Dimensions of Meaning
Potts explains that utterances often express multiple layers
of meaning at once.
Example:
“Rima finally finished the stupid
report.”
Primary meaning: Rita finished the report.
Secondary meaning: Speaker is
emotional/frustrated/excited.
Characteristics of secondary
meanings:
· They survive negation, questions, and
conditions.
· They are often presupposed
(background assumptions).
Example:
“Sam broke his skateboard.”
Presupposition: Sam has a skateboard.
If someone objects, they may say:
“Wait, I didn’t know Sam had a
skateboard!”
This challenges the presupposition,
not the main claim.
7. Speech Acts
Speech act theory classifies utterances based on what action
they perform:
·
Assertives
(state facts)
·
Directives
(command or request)
·
Commissives
(promises)
·
Expressives
(emotions)
·
Declaratives
(social change: “I now pronounce you…”)
However, the same grammatical structure may perform different
speech acts depending on context.
Example (Imperative “Have a seat”):
Can be a request, order, or invitation depending on situation
and power relations .
Thus, speech act force is not fixed by sentence form alone,
but determined by shared knowledge and context.
8. Conclusion
Pragmatics explains how meaning goes beyond grammar and
dictionary definitions. It studies:
·
How
context shapes meaning
·
How
we infer intentions
·
How
speakers manage shared understanding
How subtle meanings like emotions, politeness,
presuppositions, and implicatures arise
Because real communication is full of indirect meanings,
ambiguity, and social signals, pragmatics is essential in:
·
Human
communication analysis
·
Computational
linguistics (NLP, AI)
·
Machine
learning for chatbots & speech systems
·
Language
teaching and stylistics
In short, Pragmatics reveals how language truly works: not
just in words, but in minds, situations, and relationships.