Exploratory data analysis (EDA), data visualization, and visual analytics are essential for understanding and analyzing complex datasets. In this project, we explored these techniques and their applications in data analytics. The case discusses Tableau, a powerful data visualization tool, and Google BigQuery, a cloud-based data warehouse that…

Introduction: In the big data age, we have to deal with a tremendous amount of information, which can be collected from various types of sources. For information search systems such as Web search engines or online digital libraries, the collection of documents becomes larger and larger. For some queries, an information search system needs to…

The paper describes the concept of a federated ecosystem for Open Educational Resources (OER) in the German education system. Here, a variety of OER repositories (ROER) (Muuß-Merholz & Schaumburg, 2014) and reference platforms have been established in the recent past. In order to develop this ecosystem, not only are metadata standards…

This paper describes the use and benefits of Microsoft's Adventure Works (AW) database to teach advanced database skills in a hands-on, realistic environment. Database management and querying skills are a key element of a robust information systems curriculum, and active learning is an important way to develop these skills. To facilitate active…

First offered to public libraries in 2004, downloadable audiobooks have grown by leaps and bounds. According to the Audio Publishers Association, their sales today account for 21% of the spoken-word audio market. It hasn't been easy, however. WMA. DRM. MP3. AAC. File extensions small on letters but very big on consequences for librarians,…

Provides an overview of indexing in database management systems to provide librarians with more understanding of the possibilities and limitations of current information systems. Sequential, direct, indexed sequential, and virtual sequential file accessing methods are explained, and various binary tree structures are described. (EAM)

Discusses the design and implementation of database management systems for low-organized and natural language text on small computers. Emphasis is on the efficient storage and access of primary (text) and secondary (dictionary) files. Possible expansions to the system to increase its use in linguistic research are considered. (six references)…

Shows how deductive data management techniques can be applied to the utilization of data value classifications in information retrieval. A representation of classifications which supports transitive computation is defined, and an operation-oriented deductive query language tailored for classification-based deductive information retrieval in fact…

Discusses traditional information retrieval through indexing terms and describes a document storage and retrieval system based on structured information, where the SGML document is transformed into Grove (Graph Representation of Property Values) and stored at an element level by an object-oriented database management system. Also discusses query…

This white paper provides an overview of the present state of community college evaluation processes and procedures, discusses possible enhancements, and outlines the basic design concepts for a unified system to collect, organize and manage student data. The intended audience is community college administrators, researchers, and others who…

Presents an operational definition of personal information retrieval systems and describes design principles of current applications and existing systems, current trends, and research guidelines for general design principles. (4 references) (Author/CLB)

Outlines the file structure requirements for a microcomputer-based information retrieval system using FoxPro, a relational database management system (DBMS). Issues relating to the design and implementation of such systems are discussed, and two possible designs are examined in terms of space economy and practicality of implementation. (15…

This discussion of the development of database management systems specifically created to support qualitative research identifies two main problems in qualitative approaches, i.e., the issues of data collection and analysis, and the cumbersome nature of traditional qualitative approaches. These problems are reviewed with a comparison of the…

Discusses the critical need for tools to manage, access, and disseminate text and image information ranging from free-form ASCII data to scanned documents stored on optical media. Current types of integrated text/image databases are described and the advancement of technology toward systems that manage large collections of documents made up of…

Discusses various categories of software that can be applied to the development of in-house databases on microcomputers, and describes the use of a general purpose package with a procedural language to design a small indexing system called Revelation. The description covers data storage and maintenance, database design, file searching, and system…