Preprints (not yet peer-reviewed)

111 downloads
217 views

IRT models are often applied when observed items are used to measure a unidimensional latent variable. Originally used in educational research, IRT models are now widely used when focus is on physical functioning or psychological well-being. Modern applications...

["Data Science","Graphics","Programming Languages"]
doi:10.7287/peerj.preprints.26740v1
105 downloads
311 views

The surgical skills required to successfully maintain hemostasis, the control of operative blood, requires considerable deliberate practice. Hemostasis requires the deft orchestration of bi-dexterous tool manipulation. We present our approach to computationally...

["Human-Computer Interaction","Graphics","Scientific Computing and Simulation"]
doi:10.7287/peerj.preprints.3334v2
1,053 downloads
1,636 views

Modern statistics is fundamentally a computational discipline, but too often this fact is not reflected in our statistics curricula. With the rise of big data and data science it has become increasingly clear that students both want, expect, and need explicit training...

["Computer Education","Data Science","Graphics","Scientific Computing and Simulation","Software Engineering"]
doi:10.7287/peerj.preprints.3181v1
100 downloads
215 views

Objects of more than three dimensions can be used to model geographic phenomena that occur in space, time and scale. For instance, a single 4D object can be used to represent the changes in a 3D object's shape across time or all its optimal representations at various...

["Graphics","Spatial and Geographic Information Systems"]
doi:10.7287/peerj.preprints.2844v1
324 downloads
763 views

Secret sharing approach and in particular Visual Cryptography (VC) try to address the security issues in dealing with images. In fact, VC is a powerful technique that combines the notions of perfect ciphers and secret sharing in cryptography. VC takes an image...

["Computer Vision","Cryptography","Graphics","Security and Privacy"]
doi:10.7287/peerj.preprints.2682v3
114 downloads
229 views

In this paper a method for detection of image forgery in lossy compressed digital images known as error level analysis (ELA) is presented and it's noisy components are filtered with automatic wavelet soft-thresholding. With ELA, a lossy compressed image is recompressed...

["Artificial Intelligence","Computer Vision","Data Mining and Machine Learning","Graphics"]
doi:10.7287/peerj.preprints.2619v1
108 downloads
529 views

New challenges in the efficient management of cities depend on a deep knowledge of their inner structures. It is therefore very important to have access to reliable models of cities characteristics and organization. This paper aims at providing and validating a...

["Data Mining and Machine Learning","Data Science","Graphics","Scientific Computing and Simulation","Spatial and Geographic Information Systems"]
doi:10.7287/peerj.preprints.2264v3
139 downloads
437 views

GRNsight is a web application and service for visualizing models of gene regulatory networks (GRNs). A gene regulatory network consists of genes, transcription factors, and the regulatory connections between them which govern the level of expression of mRNA and...

["Bioinformatics","Graphics","Software Engineering"]
doi:10.7287/peerj.preprints.2068v2
99 downloads
425 views

The tools implemented for the new Regional Geochemical Database, called GEOBASI, are hereafter presented. The database has permitted the construction of a repository where the geochemical information (compositional and isotopic) has been stored in a structured...

["Databases","Graphics","Spatial and Geographic Information Systems","World Wide Web and Web Science"]
doi:10.7287/peerj.preprints.2283v1
1,443 downloads
755 views

Bibliometric analysis is a statistical method to summarize the amount of scientific activity in a domain. Insights can be derived from bibliometrics to understand the development trend of the research domain. R is an open sourced programming language specialized...

["Digital Libraries","Graphics","Visual Analytics"]
doi:10.7287/peerj.preprints.1879v1
151 downloads
370 views

An object-oriented computational framework for the transformation of colour data and colour metric tensors is presented. The main idea of the design is to represent the transforms between spaces as compositions of objects from a class hierarchy providing the methods...

["Computer Vision","Graphics","Optimization Theory and Computation","Scientific Computing and Simulation","Software Engineering"]
doi:10.7287/peerj.preprints.1700v1
What is a PeerJ Preprint?

A PeerJ Preprint is a draft of an article, abstract, or poster that has not yet been peer-reviewed for formal publication. Submit a draft, incomplete, or final version of your work for free.

Submissions today can be approved by Editorial Staff and online in 24 hours.

Establish precedent. Solicit feedback. Publish updates.

Refine by manuscript type

Top subject areas - Preprints

Top subject areas - People

View all subject areas