information retrieval important questions rejinpaul

How to implement database merging, i.e., how results from different text databases can be merged into one result set? How users with the help of relevance feedback can improve original formulation of a query? Aspects of Ad-hoc Retrievalįollowings are some aspects of ad-hoc retrieval that are addressed in IR research − This is due to the ad-hoc retrieval problem. For example, suppose we are searching something on the Internet and it gives some exact pages that are relevant as per our requirement but there can be some non-relevant pages too. Then the IR system will return the required documents related to the desired information.

In ad-hoc retrieval, the user must enter a query in natural language that describes the required information. Here, we are going to discuss a classical problem, named ad-hoc retrieval problem, related to the IR system.

The main goal of IR research is to develop a model for retrieving information from the repositories of documents. Classical Problem in Information Retrieval (IR) System Then the IR system will respond by retrieving the relevant output, in the form of documents, about the required information. It is clear from the above diagram that a user who needs information will have to formulate a request in the form of query in natural language. With the help of the following diagram, we can understand the process of information retrieval (IR) − A perfect IR system will retrieve only relevant documents. The documents that satisfy user’s requirement are called relevant documents. It informs the existence and location of documents that might consist of the required information. The system assists users in finding the information they require but it does not explicitly return the answers of the questions. Information retrieval (IR) may be defined as a software program that deals with the organization, storage, retrieval and evaluation of information from document repositories particularly textual information.

Information retrieval important questions rejinpaul