Seattle Pacific University Catalog 1988-1989

https://digitalcommons.spu.edu/archives_catalogs/1070/thumbnail.jp

Using MapReduce Streaming for Distributed Life Simulation on the Cloud

Distributed software simulations are indispensable in the study of large-scale life models but often require the use of technically complex lower-level distributed computing frameworks, such as MPI. We propose to overcome the complexity challenge by applying the emerging MapReduce (MR) model to distributed life simulations and by running such simulations on the cloud. Technically, we design optimized MR streaming algorithms for discrete and continuous versions of Conway’s life according to a general MR streaming pattern. We chose life because it is simple enough as a testbed for MR’s applicability to a-life simulations and general enough to make our results applicable to various lattice-based a-life models. We implement and empirically evaluate our algorithms’ performance on Amazon’s Elastic MR cloud. Our experiments demonstrate that a single MR optimization technique called strip partitioning can reduce the execution time of continuous life simulations by 64%. To the best of our knowledge, we are the first to propose and evaluate MR streaming algorithms for lattice-based simulations. Our algorithms can serve as prototypes in the development of novel MR simulation algorithms for large-scale lattice-based a-life models.https://digitalcommons.chapman.edu/scs_books/1014/thumbnail.jp

Políticas de Copyright de Publicações Científicas em Repositórios Institucionais: O Caso do INESC TEC

A progressiva transformação das práticas científicas, impulsionada pelo desenvolvimento das novas Tecnologias de Informação e Comunicação (TIC), têm possibilitado aumentar o acesso à informação, caminhando gradualmente para uma abertura do ciclo de pesquisa. Isto permitirá resolver a longo prazo uma adversidade que se tem colocado aos investigadores, que passa pela existência de barreiras que limitam as condições de acesso, sejam estas geográficas ou financeiras. Apesar da produção científica ser dominada, maioritariamente, por grandes editoras comerciais, estando sujeita às regras por estas impostas, o Movimento do Acesso Aberto cuja primeira declaração pública, a Declaração de Budapeste (BOAI), é de 2002, vem propor alterações significativas que beneficiam os autores e os leitores. Este Movimento vem a ganhar importância em Portugal desde 2003, com a constituição do primeiro repositório institucional a nível nacional. Os repositórios institucionais surgiram como uma ferramenta de divulgação da produção científica de uma instituição, com o intuito de permitir abrir aos resultados da investigação, quer antes da publicação e do próprio processo de arbitragem (preprint), quer depois (postprint), e, consequentemente, aumentar a visibilidade do trabalho desenvolvido por um investigador e a respetiva instituição. O estudo apresentado, que passou por uma análise das políticas de copyright das publicações científicas mais relevantes do INESC TEC, permitiu não só perceber que as editoras adotam cada vez mais políticas que possibilitam o auto-arquivo das publicações em repositórios institucionais, como também que existe todo um trabalho de sensibilização a percorrer, não só para os investigadores, como para a instituição e toda a sociedade. A produção de um conjunto de recomendações, que passam pela implementação de uma política institucional que incentive o auto-arquivo das publicações desenvolvidas no âmbito institucional no repositório, serve como mote para uma maior valorização da produção científica do INESC TEC.The progressive transformation of scientific practices, driven by the development of new Information and Communication Technologies (ICT), which made it possible to increase access to information, gradually moving towards an opening of the research cycle. This opening makes it possible to resolve, in the long term, the adversity that has been placed on researchers, which involves the existence of barriers that limit access conditions, whether geographical or financial. Although large commercial publishers predominantly dominate scientific production and subject it to the rules imposed by them, the Open Access movement whose first public declaration, the Budapest Declaration (BOAI), was in 2002, proposes significant changes that benefit the authors and the readers. This Movement has gained importance in Portugal since 2003, with the constitution of the first institutional repository at the national level. Institutional repositories have emerged as a tool for disseminating the scientific production of an institution to open the results of the research, both before publication and the preprint process and postprint, increase the visibility of work done by an investigator and his or her institution. The present study, which underwent an analysis of the copyright policies of INESC TEC most relevant scientific publications, allowed not only to realize that publishers are increasingly adopting policies that make it possible to self-archive publications in institutional repositories, all the work of raising awareness, not only for researchers but also for the institution and the whole society. The production of a set of recommendations, which go through the implementation of an institutional policy that encourages the self-archiving of the publications developed in the institutional scope in the repository, serves as a motto for a greater appreciation of the scientific production of INESC TEC

Graduate Catalog/Supplement 1995-1998

Contains course descriptions, University college calendar, and college administration.https://digitalcommons.usu.edu/universitycatalogs/1040/thumbnail.jp

University of Northern Iowa Catalog 1996-1998

This catalog is published for students and other persons who want to know more about the University of Northern Iowa. Its purpose is to communicate as objectively and completely as possible what the university is and what it does. The catalog is presented in sections to give a general view of the university as well as the detailed information required for informed decision making.https://scholarworks.uni.edu/uni_catalogs/1013/thumbnail.jp

Power spectral analysis of continuous text strings

The present study aims at evaluating structures and transfer in text strings. 42 text strings written by (younger and older) and 22 text strings written by adults (scientists newspapers and childrens books) were analysed in three ways. Firstly by simple statistical means, secondly by a time series analysis based on Fourier analysis and thirdly by a pattern evaluation analysis based on the Fast Fourier Transform, all three methods having been developed for this analysis. The analysis involving simple statistical means was based on my discovery that the distribution of ‘new’ words along any natural text string is one of exponential ‘decay’. In a double-logarithmic coordinate system each text string can be represented by a straight line determined by the two parameters: intercept A and gradient B, both a function of how fast the vocabulary becomes exhausted as the string is extended. The numerical values of A and B were established for all the text strings, before and after permutation of the strings caused intercept A to increase and gradient B to decrease significantly thus indicating that A is invertedly, B directly related to sequential structure. The analyses established that adult text strings have a higher level of sequential structure than do childrens strings and that amongst adults, popular newspapers have the highest level of structure as well as the highest vocabulary. A computer model (the ’model of best fit’) of a language perception was created in which the sememe evaluation and information transfer of the human’ linguistic device’ – two features which are not easily simulated by a computer – is instead represented by one procedure which lends itself to computer processing and numerical analysis. In this model each incoming word is checked against a ‘reference field’ and sememe evaluation and information transfer are seen in terms of length of text string between reappearances of words. Before the text strings of this study were subjected to power spectral analysis, they were processed by this ‘model of best fid’. The two different methods of Fourier analysis gave virtually identical power spectra when applied to the same text strings. The Mean Power Density (MPD) and the Variance (CH12) were measured from the power spectra of 25 of the childrens text strings and all 22 adult text strings. Although only by a small amount, MPD’s were consistently higher for adults than for children, confirming earlier findings that adult strings have a higher sequential structure than childrens strings, although the significance level did not quite make it to the 5% level. CH12 of the spectra turned out to be much more significantly correlated with age and language development than was vocabulary and gradient B earlier. The ‘reference field’, defined in the study, was the parameter with the highest correlation with language development. The popular press had the highest MPD, CH12 and ‘reference field’ of all text strings. Both MPD and CH12 decreased with permutation although only the difference with regard to CH12 was significant. Both emission and absorption features were present in all the power spectra. It was suggested that these features represent generative and filter (lexical) functions of the ‘lin-guistic device’. The position of two of the peaks in the power spectra were shown to be common to most of the spectra. These were F=0.484 in the childrens spectra and F=0,375 in the adults’ spectra. Finally it was shown that when a grammatical category (eg. Nouns) were weighted in different text strings, the same peak(s) appeared at about the same frequency in the different spectra, suggesting that identical, grammar specific, generatore and filter functions were involved in the generation of the different text strings

Ohio State University Bulletin

Classes available for students to enroll in during the 1982-1983 academic year for The Ohio State University