Applied Information Science In Economics Assessment Test

Explanation
Mean, median, and mode are measures of central tendency. These statistical measures are used to describe the center or average of a set of data. The mean is calculated by summing all the values and dividing by the number of values. The median is the middle value when the data is arranged in ascending or descending order. The mode is the value that appears most frequently in the data. These measures provide important information about the typical or representative value in a dataset.

Explanation
Usability is given much priority in research because it focuses on how easy and efficient it is for users to interact with a system or product. It ensures that the research methods and tools are user-friendly, allowing participants to easily navigate and provide accurate responses. Usability also ensures that the research findings are valid and reliable by minimizing any potential biases or errors caused by difficult or confusing research procedures. Therefore, prioritizing usability in research is essential for obtaining accurate and meaningful results.

Explanation
The given question asks for a software that is not open source. Linux and Dspace are both examples of open source software, as they are freely available and can be modified by users. Green Stone is a digital library software that is also open source. Therefore, the only option left is Windows, which is a proprietary operating system developed by Microsoft and is not open source.

Explanation
The correct answer is SDI. SDI stands for Selective Dissemination of Information, which is a feedback mechanism used in information services. It involves the automatic delivery of relevant information to users based on their specific interests or preferences. This service allows users to receive updates or notifications about new information that matches their criteria, ensuring that they stay informed about the latest developments in their field of interest.

Explanation
Processed data refers to information that has been organized, analyzed, or manipulated in some way to make it meaningful and useful. It is the result of raw data being transformed into a more structured and understandable format. Unlike raw data, which is unprocessed and lacks context, processed data has undergone some form of data processing to extract relevant insights or conclusions. Therefore, processed data accurately describes the term "information" as it represents data that has been processed and made meaningful.

Explanation
RSS Feed is a tool of web 2.0 because it allows users to subscribe to websites and receive updates in a standardized format. It enables users to easily access and manage content from multiple sources in one place, making it a valuable tool for content aggregation and distribution. RSS feeds are commonly used by bloggers, news websites, and other online platforms to deliver updated content to their audience. This tool aligns with the principles of web 2.0, which emphasizes user-generated content, collaboration, and interactive experiences on the internet.

Explanation
Scirus is the correct answer because it is a search engine specifically designed for scientific information. It provides access to scientific research articles, conference papers, patents, and other scientific resources. Unlike other search engines like AltaVista, Duckgogo, and Google, Scirus focuses solely on providing reliable and relevant scientific information to researchers, scientists, and academics.

Explanation
Noise in information retrieval refers to any irrelevant or unnecessary information that can interfere with the retrieval process. Redundant information, which is the correct answer, is a common source of noise. It refers to the repetition or duplication of data or content that does not provide any additional value or meaning. Redundant information can make it difficult for users to find the relevant information they are looking for, as it adds clutter and confusion to the retrieval process. Therefore, eliminating or minimizing redundant information is essential for improving the efficiency and accuracy of information retrieval systems.

Explanation
Folksonomy is the correct answer because it refers to the practice of categorizing and organizing information on the internet through user-generated tags. Unlike traditional taxonomies or directories, which are created by experts, folksonomies rely on the collective wisdom of users to assign relevant tags to content. This allows for a more dynamic and flexible way of organizing information, as it reflects the diverse perspectives and interests of the users.

Explanation
A table is not a graphic illustration of information, but rather a textual representation of data organized in rows and columns. It does not use visual elements such as bars, lines, or slices to represent data like the other options (histogram, pie chart, and bar chart) do. Instead, a table presents data in a structured format, making it easier to compare and analyze values in a tabular form.