Open Access. Powered by Scholars. Published by Universities.®
- Discipline
- Keyword
-
- Analogy (1)
- Aneuploidy (1)
- Challenges (1)
- Cooperative communication (1)
- DNA repair (1)
-
- Design Creativity (1)
- Design Fixation (1)
- Free riding (1)
- Fungal spores (1)
- Genetic loci (1)
- Incentive mechanisms (1)
- Innovation (1)
- Iterative decoding (1)
- Journal Articles (1)
- Journal Publications (1)
- Media streaming (1)
- Mismatch repair (1)
- Non-engineering students (1)
- Open-ended problems (1)
- Peer-to-peer networks (P2P) (1)
- Pulse amplitude modulation (1)
- Quadrature phase shift keying (1)
- Radio networks (1)
- Saccharomyces (1)
- Saccharomyces cerevisiae (1)
- Students (1)
- Technological literacy (1)
- Yeast (1)
Articles 1 - 11 of 11
Full-Text Articles in Engineering
Error Correcting Codes For Cooperative Broadcasting, Robert H. Morelos-Zaragoza
Error Correcting Codes For Cooperative Broadcasting, Robert H. Morelos-Zaragoza
Faculty Publications
This talk considers the design and implementation of error correcting codes for cooperative broadcasting in wireless networks. Focus is on the case of two cooperating sources transmitting two classes of information to a single receiver. This case was first introduced in the seminal work of Bergmans and Cover and referred to as "over the air mixing". Two levels of protection are provided using two low-density parity-check (LDPC) codes combined using Plotkin's |u|u+v|-construction. Expressions are derived for the bit metrics used in iterative decoding for two-level codes combined with BPSK, QPSK and 4-PAM modulations. Several examples of codes and their performance …
Sql Querie Recommendations: A Query Fragment-Based Approach, Jayad Akbarnejad, Magdalini Eirinaki, Suju Koshy, Duc On, Neoklis Polyzotis
Sql Querie Recommendations: A Query Fragment-Based Approach, Jayad Akbarnejad, Magdalini Eirinaki, Suju Koshy, Duc On, Neoklis Polyzotis
Faculty Publications
Relational database systems are becoming increasingly popular in the scientific community to support the interactive exploration of large volumes of data. In this scenario, users employ a query interface (typically, a web-based client) to issue a series of SQL queries that aim to analyze the data and mine it for interesting information. First-time users, however, may not have the necessary knowledge to know where to start their exploration. Other times, users may simply overlook queries that retrieve important information. In this work we describe a framework to assist non-expert users by providing personalized query recommendations. The querying behavior of the …
Personal Vs. Social, Magdalini Eirinaki
Personal Vs. Social, Magdalini Eirinaki
Faculty Publications
The last few years we witnessed an impressive growth in social networks and in applications that add value to their amassed information. At the same time, the continuing expansion of mobile platforms and applications (e.g. iPhone), combined with the overwhelming supply of information and services, makes effective personalization and context-awareness much required features. One may consider "personal" and "social" data management as comprising two distinct directions with conflicting characteristics. However, it can be argued that they complement each other and that in future applications they will ultimately converge. This "personal vs. social" predicament presents a number of interesting topics that …
A Genome-Wide Analysis Reveals No Nuclear Dobzhansky-Muller Pairs Of Speciation Genes Between S. Cerevisiae And S. Paradoxus, But Suggests More Complex Incompatibilities, Katy Kao, Katja Schwartz, Gavin Sherlock
A Genome-Wide Analysis Reveals No Nuclear Dobzhansky-Muller Pairs Of Speciation Genes Between S. Cerevisiae And S. Paradoxus, But Suggests More Complex Incompatibilities, Katy Kao, Katja Schwartz, Gavin Sherlock
Faculty Publications
The Dobzhansky-Muller (D-M) model of speciation by genic incompatibility is widely accepted as the primary cause of interspecific postzygotic isolation. Since the introduction of this model, there have been theoretical and experimental data supporting the existence of such incompatibilities. However, speciation genes have been largely elusive, with only a handful of candidate genes identified in a few organisms. The Saccharomyces sensu stricto yeasts, which have small genomes and can mate interspecifically to produce sterile hybrids, are thus an ideal model for studying postzygotic isolation. Among them, only a single D-M pair, comprising a mitochondrially targeted product of a nuclear gene …
Development Of A Technological Literacy Course For Non-Engineering Students: Science Of High Technology, Thomas Howell, Patricia Backer, Belle Wei
Development Of A Technological Literacy Course For Non-Engineering Students: Science Of High Technology, Thomas Howell, Patricia Backer, Belle Wei
Faculty Publications
As citizens, we are confronted by many global and national issues such as the dangers of greenhouse gases and the best choices for energy sources. These questions are fundamentally technical in nature and many people feel ill-equipped to understand the variety of claims and counterclaims as to what is “the truth” on these and other important scientific issues. For many people, the reaction is to give up and accept that the modern world is too complex to understand. To address these issues and improve technological literacy, the College of Engineering (CoE) at San José State University (SJSU) has implemented a …
Hispanic Computer Brigade Silicon Valley Computer Camp, Patricia Backer, Belle Wei
Hispanic Computer Brigade Silicon Valley Computer Camp, Patricia Backer, Belle Wei
Faculty Publications
Hispanic students are vastly underrepresented in computing during a time when the Hispanic population in the U.S. is growing dramatically. By 2020, Hispanics will account for 50% of the workers in California. And, by 2050, the Hispanic population is projected to triple in the United States with 25% of the U.S. population being of Hispanic origin. The College of Engineering (CoE) at San José State University proposed a new approach for recruiting Hispanic students into computing disciplines and careers through the Hispanic Computer Brigade (HCB) initiative. By forming HCBs in two local high schools, we aimed to inspire and engage …
Mining Frequent Generalized Patterns For Web Personalization In The Presence Of Taxonomies, P. Giannikopoulos, I. Varlamis, Magdalini Eirinaki
Mining Frequent Generalized Patterns For Web Personalization In The Presence Of Taxonomies, P. Giannikopoulos, I. Varlamis, Magdalini Eirinaki
Faculty Publications
The Web is a continuously evolving environment, since its content is updated on a regular basis. As a result, the traditional usage-based approach to generate recommendations that takes as input the navigation paths recorded on the Web page level, is not as effective. Moreover, most of the content available online is either explicitly or implicitly characterized by a set of categories organized in a taxonomy, allowing the page-level navigation patterns to be generalized to a higher, aggregate level. In this direction, the authors present the Frequent Generalized Pattern (FGP) algorithm. FGP takes as input the transaction data and a hierarchy …
Incentive Mechanisms In P2p Media Streaming Systems, Xiao Su, Suchreet Dhaliwal
Incentive Mechanisms In P2p Media Streaming Systems, Xiao Su, Suchreet Dhaliwal
Faculty Publications
This paper highlights the need to curb free-riding in P2P media streaming systems and discusses the mechanisms by which this could be accomplished. Free riding, whereby a peer utilizes network resources, but does not contribute services could have a huge impact on the efficacy of blue streaming systems, leading to scalability issues and service degradation. We discuss why BitTorrent-like tit-for-tat mechanisms cannot be simply tailored and used in streaming. Even though the problem of free riding is more severe in P2P media streaming than in file sharing, the deployed systems still lack incentive schemes. In this paper, we categorize, analyze, …
Innovation Skills For Tomorrow’S Sustainable Designers, Julie Linsey, Vimal Viswanathan
Innovation Skills For Tomorrow’S Sustainable Designers, Julie Linsey, Vimal Viswanathan
Faculty Publications, Mechanical Engineering
Tomorrow’s sustainable designers will need an arsenal of tools for innovation. An approach for teaching design methods and innovation is described. A new approach for teaching design methods based on the use of analogous products to provide concrete experiences prior to the method’s application to a novel design problem was evaluated. Students’ opinions of the various design methods and their perceptions of the class’s influence on their creativity were also measured. Past experiments have shown that the presentation of example solutions has the potential to cause design fixation thus limiting the design solutions considered. Due to this, the teams’ final …
On Iterative Decoding Of Two-Level Superposition Codes For Cooperative Broadcasting Based On Qpsk And 4-Pam Constellations, Robert H. Morelos-Zaragoza
On Iterative Decoding Of Two-Level Superposition Codes For Cooperative Broadcasting Based On Qpsk And 4-Pam Constellations, Robert H. Morelos-Zaragoza
Faculty Publications
This paper considers iterative decoding of two-level superposition codes used in cooperative broadcasting over wireless networks. The coding scheme consists of two low-density parity-check (LDPC) codes combined using Plotkin's |u|u + v|-construction and provides two levels of error protection. Coding for cooperative broadcasting differs from conventional single-source broadcast coding. Instead of binary addition of subcode codewords performed by a single-source encoder, in superposition coding two modulated subcode sequences, produced by two coordinated and independent sources, are combined at the antenna of the receiver. Expressions are derived for the bit metrics, or log-likelihood ratio values, used by an iterative decoder for …
Challenges Students Face When Solving Open - Ended Problems, Nikos J. Mourtos
Challenges Students Face When Solving Open - Ended Problems, Nikos J. Mourtos
Faculty Publications
Several core aerospace engineering courses at SJSU have been re-designed in an effort to help students develop problem-solving skills. This re-design includes (a) explicit definition of skills and attributes students need to develop to become capable problem-solvers, (b) inclusion of open-ended problems in each of several key, junior-level, core courses, (c) coaching students in the use of Wood’s Problem-Solving Methodology, and (d) development of rubrics to evaluate student performance at each step of this methodology. The paper discusses the application of this process and, in particular, it presents an assessment of student performance in two courses: fluid mechanics and aerodynamics. …