Retrievability is the measure of how easily a document can be retrieved using a particular retrieval system. The extent to which a retrieval system favours certain documents over others (as expressed by their retrievability scores) determines the level of bias the system imposes on a collection. Recently it has been shown that it is possible to tune a retrieval system by minimising the retrieva...

(UNLV) has been tasked to suggest improvements and evaluate the performance of the current DOE document conversion system. 1 This report gives a summary of the recommendations made by ISRI staff and a summary of the results of two types of performance tests. There are two approaches to evaluating the performance of document conversion systems. One approach is to measure the accuracy of the text...

Retrievability is an important measure in information retrieval that can be used to analyze retrieval models and document collections. Rather than just focusing on a set of few documents that are given in the form of relevance judgments, retrievability examines what is retrieved, how frequently it is retrieved, and how much effort is needed to retrieve it. Such a measure is of particular intere...

Knowing how easily pages within a website can be retrieved using the site’s search functionality provides crucial information to the site designer. If the system is not retrieving particular pages then the system or information may need to be changed to ensure that visitors to the site have the best chance of finding the relevant information. In this demo paper, we present a Page Retrievability...

Countries around the world are researching, developing and demonstrating disposal of long-lived radioactive waste in engineered repositories located in suitable deep underground geological formations as the reference solution to protect present and future generations and the environment. In some countries, actual implementation of geological disposal projects is only a few years away. Countries...

With increasing volumes of data, much effort has been devoted to finding the most suitable answer to an information need. However, in many domains, the question whether any specific information item can be found at all via a reasonable set of queries is essential. This concept of Retrievability of information has evolved into an important evaluation measure of IR systems in recall-oriented appl...

C around the world are researching, developing and demonstrating disposal of long-lived radioactive waste in engineered repositories located in suitable deep underground geological formations as the reference solution to protect present and future generations and the environment. In some countries, actual implementation of geological disposal projects is only a few years away. Countries are als...

Bias quantification of retrieval functions with the help of document retrievability scores has recently evolved as an important evaluation measure for recall-oriented retrieval applications.While numerous studies have evaluated retrieval bias of retrieval functions, solid validation of its impact on realistic types of queries is still limited. This is due to the lack of well-accepted criteria f...

Hundreds of experiments over the last decade on the retrieval of OCR documents performed by the Information Science Research Institute have shown that OCR errors do not significantly affect retrievability. We extend those results to show that in the case of proximity searching, the removal of running headers and footers from OCR text will not improve retrievability for such searches.