Query languages are the foundations of database teaching and education practices. The broad adoption of graph databases contrasts with the limited research into how they are taught. Contrary to relational databases, graph databases allow navigational queries with higher expressivity and lack an a priori schema. In this article, we design a…

This study sought to examine the frequency and type of graphical representations in science trade books for children from 1972 to 2007. Specifically questions addressed differences in graphical forms in science discipline and for intended audience age for books. The results revealed that there is an increase in the presence and variation of…

This paper presents an overview of studies on the correlations of teacher pay to regional economics and to regional factors affecting the size of teacher salaries. It describes the basic pay indicators for teachers in the regions: absolute salary, teacher pay level as compared to the average regional salary, and ratio of salary to the cost of a…

Describes a general framework for the evaluation of sets of links for user navigation between images in pictorial data banks and gives an example of the construction of a connection graph in a large image bank. A study of user navigation behavior in this set of links is described and the results are discussed. (18 references) (LAE)

The role of the coauthor relationship in the structure of informal communications networks within disciplines is explored, and the validity of coauthor graphs used to map these relationships is tested for both small and large databases. (CLB)

Reviews the Linked Systems project protocols in the Name Authority Distribution Application and describes the requirements they were designed to meet. A technical evaluation of the protocols in actual operation at OCLC is presented, and suggestions for improved performance are made. (Author/CLB)

The costs of creating and maintaining permanent files and retrieving keyword title indexes in TRIAL (Technique for Retrieving Information from Abstracts of Literature) are presented. This system, which is used for bibliographic control and file efficiency, is relatively easy to learn and use, and popular with school, academic, business, and…

The Hepatitis Knowledge Base (text of prototype information system) was used for modifying and testing "A Navigator of Natural Language Organized (Textual) Data" (ANNOD), a retrieval system which combines probabilistic, linguistic, and empirical means to rank individual paragraphs of full text for similarity to natural language queries…

Describes work performed under the Spelling Error Detection Correction Project (SPEEDCOP) at Chemical Abstracts Service to devise effective automatic methods of detecting and correcting misspellings in scholarly and scientific text. The trigram analysis technique developed determined sites but not types of errors. Thirteen references are listed.…

Examines materials about laserdisks in literature published between 1970 and 1989 that addresses library applications. Searches on ERIC, Information Science Abstracts, Library and Information Science Abstracts, and Library Literature are reviewed; core laserdisk journals are discussed; indexing overlap is examined; and other online databases are…

In contrast to the usual approach in computer-based reference services, which is to go into a specific data base to retrieve citations to material on a specific, narrowly-defined topic, this report demonstrates how such services could be useful in a broad approach to a complex subject, using an investigation of trends in the world aluminum…

Defines relationship between user profile and user query in terms of relationship between clusters of documents retrieved by each, and explores the expression of cluster similarity and cluster overlap as linear functions of similarity existing between original pairs of profiles and queries, given the desired retrieval threshold. (23 references)…

Describes a unitized data system for a scientific database that stores descriptions of individual experimental steps as separate text-based subunits together with appropriate linking signals. Conversion of graphics into searchable text, use of natural language, and cost effectiveness are discussed. An example using a biology research paper is…

Online seaches of sample topics in the area of forensic medicine were conducted in the following life science databases: Biosis Previews, Excerpta Medica, Medline, Scisearch, and Chemical Abstracts Search. Search outputs analyzed according to criteria of recall, uniqueness, overlap, and utility reveal the need for a cross-database approach to…

Examines relationship between journal productivity (number of references to particular journal) and journal obsolescence (median age of references to particular journal) for database of references dealing with desalination. Citation age by Bradford zones, continuous measurement of productivity and citation age, and underlying structure of observed…