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What is the key challenge in information retrieval (IR) that differentiates it from traditional database (DB) systems?
What is the key challenge in information retrieval (IR) that differentiates it from traditional database (DB) systems?
- IR systems need to provide a ranking of results, while DB systems only need to provide a binary yes/no answer.
- IR systems need to focus on relevance, while DB systems only need to focus on exact matches. (correct)
- IR systems need to deal with the different forms of documents and queries, unlike DB systems which only handle a single, consistent format.
- IR systems need to handle both structured and unstructured data, unlike DB systems which only handle structured data.
Which of the following is the simplest retrieval model described in the text?
Which of the following is the simplest retrieval model described in the text?
- Boolean Retrieval Model
- Google's PageRank algorithm
- Term-Document Incidence Matrix
- Bag-of-Words trick (correct)
What is the key difference between documents and queries in information retrieval systems?
What is the key difference between documents and queries in information retrieval systems?
- Documents are long-form text, while queries are typically short phrases.
- Documents are static, while queries are dynamic and change over time.
- Documents are structured data, while queries are unstructured data.
- Documents and queries use different forms, which is a key challenge in IR. (correct)
What is the purpose of the Term-Document Incidence Matrix mentioned in the text?
What is the purpose of the Term-Document Incidence Matrix mentioned in the text?
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