Differentially private stochastic gradient descent algorithm for multiparty classification

We consider the problem of developing privacy-preserving machine learning algorithms in a dis-tributed multiparty setting. Here different parties own different parts of a data set, and the goal is to learn a classifier from the entire data set with-out any party revealing any information about the individual data points it owns. Pathak et al [7]recently proposed a solution to this problem in which each party learns a local classifier from its own data, and a third party then aggregates these classifiers in a privacy-preserving manner using a cryptographic scheme. The generaliza-tion performance of their algorithm is sensitive to the number of parties and the relative frac-tions of data owned by the different parties. In this paper, we describe a new differentially pri-vate algorithm for the multiparty setting that uses a stochastic gradient descent based procedure to directly optimize the overall multiparty ob-jective rather than combining classifiers learned from optimizing local objectives. The algorithm achieves a slightly weaker form of differential privacy than that of [7], but provides improved generalization guarantees that do not depend on the number of parties or the relative sizes of the individual data sets. Experimental results corrob-orate our theoretical findings.

Unemployment and private returns to higher education in Argentina (1974-2002)

Resumen: El trabajo analiza la evolución de los retornos privados a la educación superior en Argentina durante el período 1974–2002 y cómo éstos se vieron afectados por el desempleo. La conclusión es que los retornos a la educación son mayores si se los corrige teniendo en cuenta el desempleo para cada nivel educativo, ya que a mayor nivel, menor tasa de desempleo. Al evaluar invertir en educación no se debería considerar simplemente el diferencial de ingresos sino también la mayor probabilidad de tener un trabajo. Esto es relevante en un país como Argentina que pasó de tener tasas de desempleo cercanas a 5% en la década del ochenta a tener tasas de dos dígitos a fines del siglo XX y comienzos del XXI.

Population age structure and private consumption in Spain

In this paper we study the effect of population age distribution upon private consumption expenditure in Spain from 1964 to 1997 using aggregate data. We obtain four main results. First, changes in the population pyramid have substantial effects upon the behaviour of private consumption. Second, the pattern of the coefficients of the demographic variables is not consistent with the simplest version of the life cycle hypothesis. Third, we estimate the impact of the demographic transition upon consumption and find positive values associated with episodes in which the shares of groups of individuals with expenditure levels higher (lower) than the mean increased (decreased). Fourth, the results are robust to alternative specifications for the population age distribution.

Experiences of Public-Private Collaboration for Stimulating

For over a decade now, work has been ongoing on the professional organization and management of town centre retail spaces in Spain under what is known as the Open Shopping Centre model. Introducing this model has involved a process of public-private collaboration in several different phases, conditioned to a large extent by the specific context of each initiative. With a view to furthering the process of benchmarking developed out of the experiences of recent years, we shall use case analysis to explain trends in initiatives for retail regeneration and stimulation undertaken in the Basque Country (an autonomous community in the north of Spain) since 2000. We analyze the factors that have prompted these initiatives, assessing and comparing the landmarks and conditions that have marked, or are determining, progress in the dynamic of collaboration between municipal authorities and retailers for a competitive improvement both in the retail sector and in the environment in which it operates: the city. Finally we list witch are these key factors.

Wide Screening of Phage-Displayed Libraries Identifies Immune Targets in Planta

Microbe-Associated Molecular Patterns and virulence effectors are recognized by plants as a first step to mount a defence response against potential pathogens. This recognition involves a large family of extracellular membrane receptors and other immune proteins located in different sub-cellular compartments. We have used phage-display technology to express and select for Arabidopsis proteins able to bind bacterial pathogens. To rapidly identify microbe-bound phage, we developed a monitoring method based on microarrays. This combined strategy allowed for a genome-wide screening of plant proteins involved in pathogen perception. Two phage libraries for high-throughput selection were constructed from cDNA of plants infected with Pseudomonas aeruginosa PA14, or from combined samples of the virulent isolate DC3000 of Pseudomonas syringae pv. tomato and its avirulent variant avrRpt2. These three pathosystems represent different degrees in the specificity of plant-microbe interactions. Libraries cover up to 26107 different plant transcripts that can be displayed as functional proteins on the surface of T7 bacteriophage. A number of these were selected in a bio-panning assay for binding to Pseudomonas cells. Among the selected clones we isolated the ethylene response factor ATERF-1, which was able to bind the three bacterial strains in competition assays. ATERF-1 was rapidly exported from the nucleus upon infiltration of either alive or heat-killed Pseudomonas. Moreover, aterf-1 mutants exhibited enhanced susceptibility to infection. These findings suggest that ATERF-1 contains a microbe-recognition domain with a role in plant defence. To identify other putative pathogen-binding proteins on a genome-wide scale, the copy number of selected-vs.-total clones was compared by hybridizing phage cDNAs with Arabidopsis microarrays. Microarray analysis revealed a set of 472 candidates with significant fold change. Within this set defence-related genes, including well-known targets of bacterial effectors, are over-represented. Other genes non-previously related to defence can be associated through this study with general or strain-specific recognition of Pseudomonas.

Libraries and alternative formats research

Good practice pointers

Libraries and alternative formats research

This series of five documents is a result of research carried out with a grant from CLAUD (a group of HE librarians in South West England who are working to help create libraries accessible to users with a disability). The research involved over 60 responses representing 49 different Higher Education Institutes (HEIs).

"Future fit your catalog" Panel [Presentation]:World Cat Local Implementation as part of a Consortia of Libraries within the University System of Maryland and Affiliated Institutitons

Power Point from Panel presentation giving implementation and search result displays and linking (17 slides)

The growth and survival rate of Oreochromis niloticus fries fed (private) with varying percentages of Leucaena leucocephala leaf meal based diets

A-ten-week feeding trial was carried out to evaluate the growth and survival rate of Oreochromis niloticus fed with varying percentage levels of Leucaena leucocephala leaf meal based diets. The substitution rates of L.leucocephala leaf meal for groundnut cake in the various diets were 0% - Diet 1, 25% - Diet 2, 50% - Diet 3 and 75% - Diet 4. Ten fries with an average weight of 0.44g were stocked at the rate of 10 fish per bowl and fed at 5% body weight. Diet 1 with 0% inclusion of Leucaena leaf meal gave a significant difference (P>0.05) in growth and survival rate compared with diets 2, 3 and 4. The water quality parameters recorded were appropriate for fish culture

The growth and survival rate of (private) Oreochromis niloticus fingerlings fed with varying percentages of Leucaena leucocephala leaf meal based diets

A-ten-week feeding trial was carried out to evaluate the growth and survival rate of Oreochromis niloticus fed with varying percentage levels of Leucaena leucocephala leaf meal as a substitute for groundnut cake. The levels in the various diets were 0% - Diet 1, 25% - Diet 2, 50% - Diet 3 and 75% - Diet 4. Ten fingerlings with an average weight of 0.44g were stocked at the rate of 10 fish per bowl and fed at 5% body weight. Diet 1 with 0% inclusion of leucaena leaf meal gave a significant difference (P>0.05) in growth and survival rate compared with diets 2, 3 and 4. The water quality parameters recorded were appropriate for fish culture

Policy analysis of shoreline restoration options on private shorelines of Puget Sound

Puget Sound shorelines have historically provided a diversity of habitats that support a variety of aquatic resources throughout the region. These valued natural resources are iconic to the region and remain central to both the economic vitality and community appreciation of Puget Sound. Deterioration of upland and nearshore shoreline habitats, have placed severe stress on many aquatic resources within the region (PSAT, 2007). Since a majority of Washington State shorelines are privately owned, regulatory authority to legislate restoration on private property is limited in scope and frequency. Washington States’ Shoreline Management Act (RCW 90.58) requires local jurisdictions to plan for appropriate future shoreline uses. Under the Act, future development can be regulated to protect existing ecological functions, but lost functions cannot be restored without purchase or compensation of restored areas. Therefore, questions remains as to the ecological resilience of the region when considering cumulative effect of existing/ongoing shoreline development constrained by limited shoreline restoration opportunities. In light of these questions, this analysis will explore opportunities to promote restoration on privately owned shorelines within Puget Sound. These efforts are intended to promote more efficient ecosystem management and improve ecosystem-wide ecological functions. From an economics perspective, results of past shoreline management can generally be characterized as both market and government failure in effectively protecting the publics’ interest in maintaining healthy shoreline resources. Therefore coastal development has proceeded in spite of negative externalities and market imbalances resulting in inefficient resource management driven by the individual ambitions of private shoreline property owners to develop their property to their highest and best use. Federally derived property rights will protect continuation of existing uses along privately owned shorelines; therefore, a fundamental challenge remains in sustainable management of existing shoreline resources while also restoring ecological functions lost to past mistakes in an effort to increase the ecologic resiliency within the region. (PDF contains 5 pages)

The Private Provision of International Impure Public Goods: the Case of Climate Policy

33 p.

Grants for Libraries

More and more libraries, museums and cultural institutions rely on fundraising and grant writing to sustain their services, special projects, or new initiatives Since most MLIS programs do not include grant project planning and proposal writing as part of their curriculum, librarians learn the process through trial and error, or continuing education classes. There are numerous books and websites that can assist the novice grant writer. We hope to provide beginners with basic information on the types of grants available, where to look for funding agencies, selected grant writing resources, and a few helpful grant writing hints to get you started. The presentation will be a three-person panel providing a short overview of the areas mentioned above, and discussion of sample grants submitted or received. The overview will be presented in Power Point format with an accompanying handout for each attendee.

O bibliotecário e o compartilhamento de saberes e informação no contexto da Avaliação de Tecnologias em Saúde

Esta pesquisa discute a participação do bibliotecário na formação de equipes multidisciplinares dos grupos de Avaliação de Tecnologias em Saúde (ATS), caracterizando sua atuação num novo campo que se abre para os bibliotecários em instituições de pesquisa. O objetivo geral baseia-se na criação de uma Biblioteca Digital (BD) com os parâmetros de qualidade da informação inerentes a ATS, a partir dos documentos gerados pelo Serviço de Comutação Bibliográfica (SCB) da Rede de Bibliotecas da FIOCRUZ, recomendando a inserção do bibliotecário na equipe multidisciplinar para ATS. A metodologia foi dividida em três partes: levantamento do estado da arte do conhecimento produzido na Saúde Coletiva, onde se insere a Avaliação de Tecnologias em Saúde, e da Ciência da Informação, pesquisa exploratória com uma abordagem qualitativa para coleta de dados junto ao grupo de pesquisadores de ATS de diversas instituições públicas e privadas e uma abordagem quantitativa para coleta de dados dos profissionais do SCB da Rede de Bibliotecas da Fiocruz e análise dos dados. Verificou-se que existe uma participação ativa do bibliotecário nas atividades de ATS, no que diz respeito, à formulação de estratégias de busca em base de dados, revisão de protocolos de busca, localização de publicações relevantes, auxílio para realização de revisões sistemática para os grupos de pesquisa. Pressupõe a criação de uma BD permitindo o compartilhamento de todos os documentos digitais gerados pelas bibliotecas. Com essa iniciativa pretende-se contribuir para impulsionar a produção do conhecimento científico e tecnológico na área da saúde e de ATS.

Livros, folhetos, jornais, calendários e folhinhas, tudo à venda na botica de Padre Tezinho: práticas sociais e práticas de leitura nos anúncios dos jornais do século XIX (1820-1831)

Este é o resultado de um trabalho desenvolvido que compõe a tese de doutorado cujo tema está focado nas práticas de leitura presentes na sociedade maranhense no século XIX, com recorte entre os anos de 1821 a 1831, data da circulação do primeiro jornal e da instalação da primeira tipografia no Maranhão, estendendo-se por todo o Primeiro Reinado quando a província começou a vivenciar os debates políticos e as transformações sociais, culturais e econômicas que lhe proporcionaram a construção de uma nova identidade. Trata- se de uma investigação histórica, tendo como fonte principal de pesquisa os jornais que circularam no Maranhão nesse período, e como sustentabilidade os reclames neles publicados que forneceram pistas necessárias para o entendimento das questões suscitadas sobre a cultura escrita, principalmente a presença de protocolos de leitura que, de forma geral, circundam ou estão vinculados às práticas de leitura e à cultura e de modo singular às pessoas, a fim de identificar as relações estabelecidas na tríade livro-leitor-leitura e, consequentemente, os desdobramentos sociais e pessoais, a partir do que era lido, produzido, veiculado ou comercializado entre os habitantes da província. Assim, houve também uma investigação de práticas sociais, incluindo ações, sujeitos e relações sociais, instrumentos, objetos, valores, tempo e lugar, não haurindo absolutamente o passado, mas garimpando referenciais que auxiliaram a entender o presente. O texto refaz um pouco a trajetória da imprensa no Maranhão, instituída com a finalidade de publicar o primeiro jornal maranhense O Conciliador do Maranhão, cujo caminho também é reconstituído assim como o dos demais jornais que circularam no período pesquisado, mostrando que eles serviram, não só para aclarar ideias, mas também para fazer brotar ideais liberalizantes. O capítulo-chave decorre das informações extraídas sobre os impressos produzidos pela imprensa local, os que estavam sendo comercializados pelo mercado maranhense, os que se encontravam no prelo local ou externo, os que se constituíam em leituras dos intelectuais e jornalistas, considerados principais construtores das práticas de leitura dos maranhenses oitocentistas. Um panorama das instituições mediadoras do livro e da leitura fecha o circuito percorrido, mostrando que as artes como a música, a pintura e o teatro serviram para delinear uma sociedade com peculiar formação crítica e que, as sociedades literárias, os gabinetes de leitura, as bibliotecas e as escolas públicas ou particulares, foram, de fato, verdadeiros baluartes da boa educação e da liberdade dos povos.