Unit 1: Reading and Writing Notes
This is an overview of information retrieval. These are several articles to talk about how people and experts think about the information retrieval.
- Finding Out About
People are always seeking the useful information about our environment. As a human, language is information on a complex system. Language can be changed if necessary because people can express about them and react to them. Finding Out About focuses on meaning and looks for the related information.
The process of Finding Out About:
1) Asking the question
people on the cognitive state of mind may be aware of asking their questions but sometimes people do not the problem. Also, we may call query as information need.
2) Constructing the answer
The main difficult problems are that how to translate human mind into the computer system so that we can receive the result. As we view passage as a document and a set of documents as a corpus.
3) Assessing the answer
It is all about the related feedbacks and may give the process a judgment.
We think that question-answer as a search engine. when human question-answer can be replaced by computer processing, search engine plays an important role in a match.
- Information Retrieval: Implementing and Evaluating Search Engines
Information retrieval is a process of collecting data and electronic text. On the web search: In order to find the page easily, the web search would create the snapshot so that they can create faster results. Moreover, web search would be based on the different situation to rank the page efficiently. Other Search Applications like the file finding file system on PC concern that the file's created time and file of the format.
Other IR application would cover routing and filtering and selective content. Text categorization systems are provided with training data to put into the same group. Text clustering is sorted into groups based on their discovery.
Information Retrieval Systems:
Before searching, users have an information need. We define this information need as a topic. when we search for a term rather than a word, the term can be number, date, note, etc. Inverted Index would also help the system.
If the document needs to update, the systems would detect the date and content to replace. It would rewrite entire files when users want to change.
Performance Evaluation is about efficiency and effectiveness. people care about time and judgment(relevance). The user can examine the relevance.
- Modern Information Retrieval
Information Retrieval is to deal with the document and represent the information we interest. IR has to handle with the complex information need. We can create index and summary this information need on the system. When people ask for an answer, the IR problem is whether is the result is relevant to users' questions.searching and browsing are distinct types.
The Retrieval and Ranking Processes are also an important one. ranking help users to get their results quickly. Practical Issues is that people care about the privacy but the transaction is huge. Another issue is that how to cope with the copyright problem.
- Finding Out About
People are always seeking the useful information about our environment. As a human, language is information on a complex system. Language can be changed if necessary because people can express about them and react to them. Finding Out About focuses on meaning and looks for the related information.
The process of Finding Out About:
1) Asking the question
people on the cognitive state of mind may be aware of asking their questions but sometimes people do not the problem. Also, we may call query as information need.
2) Constructing the answer
The main difficult problems are that how to translate human mind into the computer system so that we can receive the result. As we view passage as a document and a set of documents as a corpus.
3) Assessing the answer
It is all about the related feedbacks and may give the process a judgment.
We think that question-answer as a search engine. when human question-answer can be replaced by computer processing, search engine plays an important role in a match.
- Information Retrieval: Implementing and Evaluating Search Engines
Information retrieval is a process of collecting data and electronic text. On the web search: In order to find the page easily, the web search would create the snapshot so that they can create faster results. Moreover, web search would be based on the different situation to rank the page efficiently. Other Search Applications like the file finding file system on PC concern that the file's created time and file of the format.
Other IR application would cover routing and filtering and selective content. Text categorization systems are provided with training data to put into the same group. Text clustering is sorted into groups based on their discovery.
Information Retrieval Systems:
Before searching, users have an information need. We define this information need as a topic. when we search for a term rather than a word, the term can be number, date, note, etc. Inverted Index would also help the system.
If the document needs to update, the systems would detect the date and content to replace. It would rewrite entire files when users want to change.
Performance Evaluation is about efficiency and effectiveness. people care about time and judgment(relevance). The user can examine the relevance.
- Modern Information Retrieval
Information Retrieval is to deal with the document and represent the information we interest. IR has to handle with the complex information need. We can create index and summary this information need on the system. When people ask for an answer, the IR problem is whether is the result is relevant to users' questions.searching and browsing are distinct types.
The Retrieval and Ranking Processes are also an important one. ranking help users to get their results quickly. Practical Issues is that people care about the privacy but the transaction is huge. Another issue is that how to cope with the copyright problem.
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