Modeling both genetic and cultural transmission in parent-offspring data in the presence of phenotypic assortment requires the imposition of nonlinear constraints. This article reports a simulation study that determined how well the structural equation modeling software package Mx and the Bayesian-oriented BUGS software package can handle such nonlinear constraints under various conditions. Res...

Computer-supported annotation of software systems and their documentation, including design documentation and source code, is a common and important software engineering activity. Annotated documentation is used in both formal software inspection and informal software maintenance. Viewers of annotated systems may understand the software more easily if annotations are visible not just from the a...

An important component of visual search is the preattentive guidance of attention towards a target item. The purpose of this investigation is to determine a tuning curve for these guidance mechanisms. The experiments utilize an oriented grating to mask preattentive guidance in a visual search for orientation. By systematically varying the orientation of the grating, we expected to determine the...

w w w . i j c s t . c o m Abstract Refactoring/restructuring is important part of maintenance activities which improves software quality. This paper focuses on various methods for restructuring for procedural languages, object oriented languages and web based applications. Restructuring activities are taken place in code to improve the quality of the software application.Repetative code compone...

Matrix Factorization (MF) is one of the most successful Collaborative Filtering (CF) techniques used in recommender systems due to its effectiveness and ability deal with very large user-item rating matrix. However, when matrix sparseness increases performance deteriorates. Expanding MF include side-information users items has been shown by many researchers both improve general recommendation h...