NASA indexing benchmarks: evaluating text search engines

NASA Indexing Benchmarks: Evaluating Text Search Engines

Negligence of Phrase Indexing in Search Engines

Currently, search engines suffer from conceptual problems despite the application of refi ned techniques. The fundamental problem lies in the absence of classical information processing concepts in search engine processing. The limitation of search engines in phrase processing is highlighted in this paper. The results of search engine retrievals are compared with propriety database search resul...

A Comparing between the impacts of text based indexing and folksonomy on ranking of images search via Google search engine

Background and Aim: The purpose of this study was to compare the impact of text based indexing and folksonomy in image retrieval via Google search engine. Methods: This study used experimental method. The sample is 30 images extracted from the book “Gray anatomy”. The research was carried out in 4 stages; in the first stage, images were uploaded to an “Instagram” account so the images are tagge...

Evaluating Web Search Engines Using Clickthrough Data

The web is a highly dynamic environment: documents disappear or become outdated, new documents appear, the query distribution changes. In order to keep up, search algorithms must be continuously tuned and re-tuned. Each iteratively tuned algorithm needs to be evaluated against the current web corpus. But since the web is so frequently changing, relevance judgments acquired at one point in time ...

Information Retrieval - Implementing and Evaluating Search Engines

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