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| Data Retrieval | Information Retrieval | |
| Matching | Exact match | Partial match, best match |
| Inference | Deduction | Induction |
| Model | Deterministic | Probabilistic |
| Classification | Monothetic | Polythetic |
| Query language | Artificial | Natural |
| Query specification | Complete | Incomplete |
| Items wanted | Matching | Relevant |
| Error response | Sensitive | Insensitive |
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