rule-based

IPA/ˈruːl.beɪst/
IPA/ˈruːl.beɪst/

rule-based — adjective

1. describing a system or method that follows a fixed set of pre-established rules

1.形容詞B2
釋義

describing a system or method that follows a fixed set of pre-established rules when making decisions, rather than relying on human judgment or personal opinion.

例句

The airline uses a rule-based system to decide which passengers receive free upgrades.

attributive use: rule-based + system

Ada prefers a rule-based approach to budgeting, setting strict limits for each spending category.

collocation: rule-based approach

同義詞
  • systematic

    emphasises order and method rather than preset rules

  • procedural

    more formal, often used for official workflows

  • formulaic

    sometimes negative, suggesting too much reliance on fixed formulas

反義詞
  • intuitive

    based on feeling and instinct rather than rules

  • discretionary

    allowing individual choice within a situation

  • flexible

    able to adapt rather than follow strict rules

文法句型

rule-based + noun

用法筆記

This sense describes methods, systems, or processes — not people. For example, you would say 'a rule-based hiring process,' not 'a rule-based manager.'

常見錯誤

❌The manager is very rule-based and never listens to new ideas.
✅The manager uses a rule-based decision-making process that does not allow exceptions.
💡'Rule-based' describes systems and procedures, not a person's character.

2. describing a computer program or artificial intelligence that processes informat

2.形容詞B2
釋義

describing a computer program or artificial intelligence that processes information by applying rules written by human programmers, rather than learning patterns from data on its own.

例句

The old customer-service chatbot was rule-based and could only answer questions matching its keyword list.

attributive use: rule-based + noun (chatbot)

Tariq programmed a rule-based spam filter that blocks emails containing known suspicious phrases.

collocation: rule-based filter

同義詞
  • programmed

    broader term, not specific to rule-based architecture

  • algorithmic

    stresses the step-by-step nature of the processing

  • heuristic

    more specific — uses rules of thumb rather than exact rules

反義詞

文法句型

rule-based + noun (tool, system, model)

用法筆記

Commonly used in computing and AI contexts to contrast with machine-learning or data-driven systems. A rule-based system does not improve with experience — it only knows what its programmers explicitly told it.

常見錯誤

❌This rule-based program can understand sarcasm and jokes.
✅This rule-based program compares the user's input against a fixed list of keywords and replies.
💡Rule-based systems follow explicit instructions and cannot infer meaning that was not programmed in.