In the 1970s, Krashen proposed a monitor model, and by mid-1980s, he had further revised expanded his earlier theory to propose model of input hypotheses. Krashen’s second language acquisition has been well established for long time plays significant role in academic community. By utilizing CiteSpace, this paper analyzes papers related WOS database. Research on from 1974 through 2021 is summari...

We study the implication problem of measure-based constraints. These constraints are formulated in a framework for measures generalizing that for mathematical measures. Measures arise naturally in a wide variety of domains. We show that measure constraints, for particular measures, correspond to constraints that occur in relational databases, data mining applications, cooperative game theory, a...

Logic based knowledge processing systems such as PROLOG based expert systems have shown obvious drawbacks in performing conventional database tasks. Knowledge processing by deduction on a large set of given facts can be better performed by a deductive database system based on Horn logic and relational database theory. A concept is presented to extend an existing relational database system to ma...

Data dependencies capture meaningful information about an application domain within the target database. The theory of data dependencies is largely a theory over relations. To make data processing more efficient in practice, partial bags are permitted as database instances to accommodate partial and duplicate information. However, data dependencies interact differently over partial bags than ov...

Modeling of semantics is one of the most diicult tasks in database design. Constraints are used to express database semantics. They are used diierently in database models. They express domain restrictions, specify relationships between components and state database behavior. The utilization depends on the richness of the type system used in the model. The relational model is using a simple type...

Analyzing given medical databases provide valuable references for classifying other patients symptoms. This study presents a strategy for discovering fuzzy decision trees from medical databases, in particular Harbeman’s Survival database and the Blood Transfusion Service Center database. Harbeman’s Survival database helps doctors treat and diagnose a group of patients who show similar past medi...

In the article, an experiment is aimed at clarifying the transfer efficiency of the database in the cloud infrastructure. The system was added to the control unit, which has guided the database search in the local part or in the cloud. It is shown that the time data acquisition remains unchanged as a result of modification. Suggestions have been made about the use of the theory of dynamic syste...