Graphics and Human Computer Interfaces Commons^™

Cognitive Load Of Rating Scales, E. Isaac G. Sparling, Shilad Sen

Mathematics, Statistics, and Computer Science Honors Projects

Why does Netflix.com use star ratings, Digg.com use up/down votes and Face- book use a “like” but not a “dislike” button? In this paper, we extend existing research on rating scales with findings from an experiment we ran to measure the cognitive load users experience while rating. In this paper, we analyze the cognitive load and time required by different rating scales. Our analysis draws upon 14,000 movie and product ratings we collected from 348 users through an online survey. In the survey, we measured the speed and cognitive load users ex- perience under four scales: unary (‘like it’), binary …

Demonstrating Contradictions In A Graphical User Interface, Umakant Mishra

Umakant Mishra

Designing a GUI is not so easy as it may appear to outside. The developer has to face many difficulties while improving the features of a GUI. In many cases improving one feature of a GUI results in worsening another feature of it, thus leading to a situation known as contradiction in TRIZ. Many such contradictions have been solved by different inventors in the past. We will demonstrate some important contradictions in this article and discuss alternative solutions for each contradiction.

Wii-Mote Head Tracking: A Three Dimensional Virtual Reality Display, David Fairman

Computer Engineering

The goal of this project is to create a customizable three dimensional virtual reality display on a system available to any non-technical user. This System will use the infrared camera component of a standard Nintendo Wii-mote to track a user's head motions in all six major directions. The virtual reality will be a customizable image projected onto a screen or simply shown on a computer or TV monitor. In order to appear 3-dimensional, the image will continually change according to the position of the user's head. As the user moves their head to the left and right, portions of the …

Semantic Context Modeling With Maximal Margin Conditional Random Fields For Automatic Image Annotation, Yu Xiang, Xiangdong Zhou, Zuotao Liu, Tat-Seng Chua, Chong-Wah Ngo

Research Collection School Of Computing and Information Systems

Context modeling for Vision Recognition and Automatic Image Annotation (AIA) has attracted increasing attentions in recent years. For various contextual information and resources, semantic context has been exploited in AIA and brings promising results. However, previous works either casted the problem into structural classification or adopted multi-layer modeling, which suffer from the problems of scalability or model efficiency. In this paper, we propose a novel discriminative Conditional Random Field (CRF) model for semantic context modeling in AIA, which is built over semantic concepts and treats an image as a whole observation without segmentation. Our model captures the interactions between semantic …

Real-Time Visualizations Of Ocean Data Collected By The Norus Glider, Daniel M. Medina

Master's Theses

Scientific visualization computer applications generate visual representations of large and complex sets of science data. These types of applications allow scientists to gain greater knowledge and insight into their data. For example, the visualization of environmental data is of particular interest to biologists when trying to understand how complex variables interact. Modern robotics and sensors have expanded the ability to collect environmental data, thus, the size and variety of these data-sets have likewise grown. Oftentimes, the collected data are deposited into files and databases where they sit in their separate and unique formats. Without easy to use visualization tools, it …

Real-Time Evacuation Simulation In Mine Interior Model Of Smoke And Action, Pengfei Huang, Joseph T. Kider, Ben Sunshine-Hill, Jonathan B. Mccaffrey, Desiree Velazquez Rios, Norman I. Badler

Center for Human Modeling and Simulation

Virtual human crowd models have been used in the simulation of building and urban evacuation, but have not yet applied to underground coal mine operations and escape situations with emphasis on smoke, fires and physiological behaviors. We explore this through a real-time simulation model, MIMOSA (Mine Interior Model Of Smoke and Action), which integrates an underground coal mine virtual environment, a fire and smoke propagation model, and a human physiology and behavior model. Each individual agent has a set of physiological parameters as variables of time and environment, simulating a miner’s physiological condition during normal operations as well as during …

Personalization By Website Transformation: Theory And Practice, Saverio Perugini

Computer Science Faculty Publications

We present an analysis of a progressive series of out-of-turn transformations on a hierarchical website to personalize a user’s interaction with the site. We formalize the transformation in graph-theoretic terms and describe a toolkit we built that enumerates all of the traversals enabled by every possible complete series of these transformations in any site and computes a variety of metrics while simulating each traversal therein to qualify the relationship between a site’s structure and the cumulative effect of support for the transformation in a site. We employed this toolkit in two websites. The results indicate that the transformation enables users …

A Visualization Approach For Message Passing In Parallel Computing Systems, Arunkumar Sadasivan

UNLV Theses, Dissertations, Professional Papers, and Capstones

Information Visualization has been used as an effective method in transforming textual information into a visual form that enables users to effectively communicate and understand the information. MPI (Message Passing Interface) usually involves a large amount of data, which necessitates exploring innovative ideas to visualize such data effectively.

In this thesis, we implement a graph visualization tool called MPROV to effectively visualize communication patterns of message passing using log files from MPI applications. The tool provides several interaction techniques to effectively reduce the amount of data displayed on the screen. We have also developed protocol conformance checking, which verifies the …

Pretty Lights, Nicholas (Nick) Delmas, Matthew (Matt) Maniaci

Computer Engineering

Digital media players often include a visualization component that allows a user to watch a visualization synchronized to their music or videos. This project uses the visualization plugin API of an existing media playback program (WinAmp) but it displays its visuals using physical LED lights. Instead of outputting visuals to the computer screen, data is sent over USB to a micro controller that runs the LED lights. This project aims to give users a more visceral visual experience than traditional visualizations on the computer screen.

Performance Of Scattering Matrix Decomposition And Color Spaces For Synthetic Aperture Radar Imagery, Manuel E. Arriagada

Theses and Dissertations

Polarimetrc Synthetic Aperture Radar (SAR) has been shown to be a powerful tool in remote sensing because uses up to four simultaneous measurements giving additional degrees of freedom for processing. Typically, polarization decomposition techniques are applied to the polarization-dependent data to form colorful imagery that is easy for operators systems to interpret. Yet, the presumption is that the SAR system operates with maximum bandwidth which requires extensive processing for near- or real-time application. In this research, color space selection is investigated when processing sparse polarimetric SAR data as in the case of the publicly available \Gotcha Volumetric SAR Data Set, …

Effect Of Web Design On The Overall Success Of Web Sites, Jorge Vega

Graphic Communication

No abstract provided.

Bay Audio Repair Website & Data Management Application, Michael Shelley

Computer Science and Software Engineering

The goal of this senior project was to build a website and software application to receive and manage audio equipment repair requests for a small startup company called Bay Audio Repair (BAR). Furthermore, it allowed me to gain experience in web development and software engineering practices, specifically requirements gathering, design and implementation. The website provides an online interface for BAR’s customers to request repairs and the application allows BAR employees to update the progress of a repair. Several technologies were used in the system’s construction: HTML, XML, PHP, and C#.

Software Internationalization: A Framework Validated Against Industry Requirements For Computer Science And Software Engineering Programs, John Huân Vũ

Master's Theses

View John Huân Vũ's thesis presentation at http://youtu.be/y3bzNmkTr-c.

In 2001, the ACM and IEEE Computing Curriculum stated that it was necessary to address "the need to develop implementation models that are international in scope and could be practiced in universities around the world." With increasing connectivity through the internet, the move towards a global economy and growing use of technology places software internationalization as a more important concern for developers. However, there has been a "clear shortage in terms of numbers of trained persons applying for entry-level positions" in this area. Eric Brechner, Director of Microsoft Development Training, suggested …

Research Poster: Software Frameworks For Improved Productivity In Climate Change Research, Sohei Okamoto

2010 Annual Nevada NSF EPSCoR Climate Change Conference

Research poster

An Investigation Of Speech Enhancement Using Wavelet Filtering Method, International Journal Of Speech Technology, Philadelphia University

Philadelphia University, Jordan

No abstract provided.

Jordanian Commercial Bank Strategies In High- Rate Of Return Realization And Its Relation With Liquidity Gap Management Performance, Philadelphia University

Philadelphia University, Jordan

No abstract provided.

Testing Lyoequivalency For Three Commercially Sustainedrelease Tablets Containing Diltiazem Hydrochloride, Philadelphia University

Philadelphia University, Jordan

No abstract provided.

The Novel And The Experimentation, Philadelphia University

Philadelphia University, Jordan

No abstract provided.

Neural-Network-Based Fuzzy Identifier: Design And Evaluation, Philadelphia University

Philadelphia University, Jordan

No abstract provided.

Using Database Marketing To Enhance Direct Marketing Alternatives In Jordanian Industrial Shareholders Corporations, Philadelphia University

Philadelphia University, Jordan

No abstract provided.