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Full-Text Articles in Physical Sciences and Mathematics

When Would This Bug Get Reported?, Ferdian Thung, David Lo, Lingxiao Jiang, Lucia Lucia, Foyzur Rahman, Premkumar Devanbu Dec 2012

When Would This Bug Get Reported?, Ferdian Thung, David Lo, Lingxiao Jiang, Lucia Lucia, Foyzur Rahman, Premkumar Devanbu

David LO

Millions of people, including those in the software engineering communities have turned to microblogging services, such as Twitter, as a means to quickly disseminate information. A number of past studies by Treude et al., Storey, and Yuan et al. have shown that a wealth of interesting information is stored in these microblogs. However, microblogs also contain a large amount of noisy content that are less relevant to software developers in engineering software systems. In this work, we perform a preliminary study to investigate the feasibility of automatic classification of microblogs into two categories: relevant and irrelevant to engineering software systems. …


An Empirical Study Of Bugs In Machine Learning Systems, Ferdian Thung, Shaowei Wang, David Lo, Lingxiao Jiang Dec 2012

An Empirical Study Of Bugs In Machine Learning Systems, Ferdian Thung, Shaowei Wang, David Lo, Lingxiao Jiang

David LO

Many machine learning systems that include various data mining, information retrieval, and natural language processing code and libraries have being used in real world applications. Search engines, internet advertising systems, product recommendation systems are sample users of these algorithm intensive code and libraries. Machine learning code and toolkits have also been used in many recent studies on software mining and analytics that aim to automate various software engineering tasks. With the increasing number of important applications of machine learning systems, the reliability of such systems is also becoming increasingly important. A necessary step for ensuring reliability of such systems is …


Student Interactive Campus Map At Marshall University, Edward Aractingi, Jamie Wolfe Sep 2012

Student Interactive Campus Map At Marshall University, Edward Aractingi, Jamie Wolfe

Edward Aractingi

Marshall University is a state-funded university in Huntington, West Virginia. Like many universities, it is a large organization with multiple and diverse units (colleges, departments, centers, etc.) and depends on data to run efficiently. Much of this data is used by multiple entities. To better manage the needed data collected by the university, the Marshall University Geographic Information System (MUGIS) has been developed. MUGIS will address several needs of Marshall University’s principal stakeholders. Stakeholders include the university administration, faculty, and students. One of the first applications developed for MUGIS was an interactive campus map. This Web-based application is intended to …


What Does Software Engineering Community Microblog About?, Yuan Tian, Palakorn Achananuparp, Ibrahim Nelman Lubis, David Lo, Ee Peng Lim Aug 2012

What Does Software Engineering Community Microblog About?, Yuan Tian, Palakorn Achananuparp, Ibrahim Nelman Lubis, David Lo, Ee Peng Lim

David LO

Microblogging is a new trend to communicate and to disseminate information. One microblog post could potentially reach millions of users. Millions of microblogs are generated on a daily basis on popular sites such as Twitter. The popularity of microblogging among programmers, software engineers, and software users has also led to their use of microblogs to communicate software engineering issues apart from using emails and other traditional communication channels.Understanding how millions of users use microblogs in software engineering related activities would shed light on ways we could leverage the fast evolving microblogging content to aid software development efforts. In this work, …


Human: Creating Memorable Fingerprints Of Mobile Users, Gupta Payas, Kiat Wee Tan, Narayanasamy Ramasubbu, David Lo, Debin Gao, Rajesh Krishna Balan Aug 2012

Human: Creating Memorable Fingerprints Of Mobile Users, Gupta Payas, Kiat Wee Tan, Narayanasamy Ramasubbu, David Lo, Debin Gao, Rajesh Krishna Balan

David LO

In this paper, we present a new way of generating behavioral (not biometric) fingerprints from the cellphone usage data. In particular, we explore if the generated behavioral fingerprints are memorable enough to be remembered by end users. We built a system, called HuMan, that generates fingerprints from cellphone data. To test HuMan, we conducted an extensive user study that involved collecting about one month of continuous usage data (including calls, SMSes, application usage patterns etc.) from 44 Symbian and Android smartphone users. We evaluated the memorable fingerprints generated from this rich multi-context data by asking each user to answer various …


Active Refinement Of Clone Anomaly Reports, Lucia, David Lo, Lingxiao Jiang, Aditya Budi Aug 2012

Active Refinement Of Clone Anomaly Reports, Lucia, David Lo, Lingxiao Jiang, Aditya Budi

David LO

Software clones have been widely studied in the recent literature and shown useful for finding bugs because inconsistent changes among clones in a clone group may indicate potential bugs. However, many inconsistent clone groups are not real bugs (true positives). The excessive number of false positives could easily impede broad adoption of clone-based bug detection approaches. In this work, we aim to improve the usability of clone-based bug detection tools by increasing the rate of true positives found when a developer analyzes anomaly reports. Our idea is to control the number of anomaly reports a user can see at a …


Sweating Bullets: Notes About Inventing Powerpoint, Robert Gaskins Apr 2012

Sweating Bullets: Notes About Inventing Powerpoint, Robert Gaskins

Robert Gaskins

PowerPoint was invented to be the first presentation software specifically for Macintosh and Windows personal computers. During its design and development as a Silicon Valley startup it received the first venture capital investment ever made by Apple. PowerPoint 1.0 was shipped in 1987 as a Mac program to make black-and-white overhead presentations. Soon thereafter it became the first significant acquisition ever made by Microsoft, who set up a new Graphics Business Unit in Silicon Valley to develop it further. A color version, adding features to also make 35mm slide presentations, was shipped for Mac in 1988 and for Windows in …


Competition In Modular Clusters, Carliss Y. Baldwin, C. Jason Woodard Apr 2012

Competition In Modular Clusters, Carliss Y. Baldwin, C. Jason Woodard

C. Jason Woodard

The last twenty years have witnessed the rise of disaggregated “clusters,” “networks,” or “ecosystems” of firms. In these clusters the activities of R&D, product design, production, distribution, and system integration may be split up among hundreds or even thousands of firms. Different firms will design and produce the different components of a complex artifact (like the processor, peripherals, and software of a computer system), and different firms will specialize in different stages of a complex production process. This paper considers the pricing behavior and profitability of these so-called modular clusters. In particular, we investigate a possibility hinted at in prior …


A Vision And Method In Studying Abdul-Wahab El-Bayyati Poetry, Philadelphia University Feb 2012

A Vision And Method In Studying Abdul-Wahab El-Bayyati Poetry, Philadelphia University

Philadelphia University, Jordan

No abstract provided.


A Multi-Platform Application Suite For Enhancing South Asian Language Pedagogy, Tao Bai, Christopher K. Chung, Konstantin Läufer, Daisy Rockwell, George K. Thiruvathukal Jan 2012

A Multi-Platform Application Suite For Enhancing South Asian Language Pedagogy, Tao Bai, Christopher K. Chung, Konstantin Läufer, Daisy Rockwell, George K. Thiruvathukal

Konstantin Läufer

This interdisciplinary project explores the potential for handheld/wireless (H/W) technology in the context of language education within and beyond the classroom. Specifically, we have designed and implemented a suite of multi-platform (desktop/laptop, handheld, and browser) applications to enhance the teaching of South Asian languages such as Hindi-Urdu. Such languages are very difficult to learn, let alone write, and H/W devices (with their handwriting/drawing capabilities) can play a significant role in overcoming the learning curve. The initial application suite includes a character/word tracer, a word splitter/joiner, a smart flashcard with audio, contextual augmented stories for reading comprehension, and a poetic metronome. …


Enhancing The Cs Curriculum With With Aspect-Oriented Software Development (Aosd) And Early Experience, Konstantin Läufer, George K. Thiruvathukal, Tzilla Elrad Jan 2012

Enhancing The Cs Curriculum With With Aspect-Oriented Software Development (Aosd) And Early Experience, Konstantin Läufer, George K. Thiruvathukal, Tzilla Elrad

Konstantin Läufer

Aspect-oriented software development (AOSD) is evolving as an important step beyond existing software development approaches such as object-oriented development. An aspect is a module that captures a crosscutting concern, behavior that cuts across different units of abstraction in a software application; expressed as a module, such behavior can be enabled and disabled transparently and non-invasively, without changing the application code itself. Increasing industry demand for expertise in AOSD gives rise to the pedagogical challenge of covering this methodology and its foundations in the computer science curriculum. We present our curricular initiative to incorporate a novel course in AOSD in the …


The Extreme Software Development Series: An Open Curricular Framework For Applied Capstone Courses, Konstantin Läufer, George K. Thiruvathukal Jan 2012

The Extreme Software Development Series: An Open Curricular Framework For Applied Capstone Courses, Konstantin Läufer, George K. Thiruvathukal

Konstantin Läufer

We describe an open, flexible curricular framework for offering a collection of advanced undergraduate and graduate courses in software development. The courses offered within this framework are further unified by combining solid foundations with current technology and play the role of capstone courses in a modern software development track. Our initiative has been very successful with all stakeholders involved.


A Review Of The Professionalization Of The Software Industry: Has It Made Software Engineering A Real Profession?, Heng Ngee Mok Jan 2012

A Review Of The Professionalization Of The Software Industry: Has It Made Software Engineering A Real Profession?, Heng Ngee Mok

Heng Ngee Mok

Every industry strives to be called a "profession", and software engineering is no exception. This paper attempts to define "profession" from three different perspectives and provides a chronological narration of the professionalization efforts of major IT bodies such as the IEEE Computer Society, Association of Computing Machinery and British Computer Society to promote software engineering from "occupation" to "profession". The outcome of this professionalization process is then examined against the three vastly different definitions of "profession" to qualitatively gauge the success of the professionalization process.


Student Usage Patterns And Perceptions For Differentiated Lab Exercises In An Undergraduate Programming Course, Heng Ngee Mok Jan 2012

Student Usage Patterns And Perceptions For Differentiated Lab Exercises In An Undergraduate Programming Course, Heng Ngee Mok

Heng Ngee MOK

Differentiated instruction in the form of tiered take-home lab exercises was implemented for students of an undergraduate-level programming course. This paper attempts to uncover the perceptions and usage patterns of students toward these new lab exercises using a comprehensive survey. Findings reveal that these tiered exercises are generally very well received and preferred over their traditional "one size fits all" counter-parts. Although the study does not show that tiered exercises have improved proÞciency or scores, it does seem to indicate higher student engagement and motivation levels. Based on the survey results, a list of recommendations is put forth for the …


Leveraging Fragmental Semantic Data To Enhance Services Discovery, Jia Zhang, Jian Wang, Patrick C.K. Hung, Zheng Li, Jianxiao Liu, Keqing He Dec 2011

Leveraging Fragmental Semantic Data To Enhance Services Discovery, Jia Zhang, Jian Wang, Patrick C.K. Hung, Zheng Li, Jianxiao Liu, Keqing He

Jia Zhang

No abstract provided.


An Optimal Real-Time Voltage And Frequency Scaling For Uniform Multiprocessors, Gabriel A. Moreno, Dionisio De Niz Dec 2011

An Optimal Real-Time Voltage And Frequency Scaling For Uniform Multiprocessors, Gabriel A. Moreno, Dionisio De Niz

Gabriel A. Moreno

Power consumption is an increasing concern in real-time systems that operate on battery power or require heat dissipation to keep the system at its operating temperature. Today, most processors allow software to change their frequency and voltage of operation to reduce their power consumption. Frequency scaling in real-time systems must be done in a way that ensures that the tasks' deadlines are met. In this paper we present the Growing Minimum Frequency (GMF) algorithm for voltage and frequency scaling in uniform multiprocessors for real-time systems. This algorithm runs in polynomial time and computes the optimal voltage and frequency assignment, achieving …