955 resultados para Open source information retrieval
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In the last few years, there has been a wide development in the research on textual information systems. The goal is to improve these systems in order to allow an easy localization, treatment and access to the information stored in digital format (Digital Databases, Documental Databases, and so on). There are lots of applications focused on information access (for example, Web-search systems like Google or Altavista). However, these applications have problems when they must access to cross-language information, or when they need to show information in a language different from the one of the query. This paper explores the use of syntactic-sematic patterns as a method to access to multilingual information, and revise, in the case of Information Retrieval, where it is possible and useful to employ patterns when it comes to the multilingual and interactive aspects. On the one hand, the multilingual aspects that are going to be studied are the ones related to the access to documents in different languages from the one of the query, as well as the automatic translation of the document, i.e. a machine translation system based on patterns. On the other hand, this paper is going to go deep into the interactive aspects related to the reformulation of a query based on the syntactic-semantic pattern of the request.
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The exponential increase of subjective, user-generated content since the birth of the Social Web, has led to the necessity of developing automatic text processing systems able to extract, process and present relevant knowledge. In this paper, we tackle the Opinion Retrieval, Mining and Summarization task, by proposing a unified framework, composed of three crucial components (information retrieval, opinion mining and text summarization) that allow the retrieval, classification and summarization of subjective information. An extensive analysis is conducted, where different configurations of the framework are suggested and analyzed, in order to determine which is the best one, and under which conditions. The evaluation carried out and the results obtained show the appropriateness of the individual components, as well as the framework as a whole. By achieving an improvement over 10% compared to the state-of-the-art approaches in the context of blogs, we can conclude that subjective text can be efficiently dealt with by means of our proposed framework.
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El estudio de las disciplinas científicas resulta más atractivo si se acompaña de actividades de carácter práctico. En este trabajo se propone un taller cuya finalidad es introducir al alumnado en el trabajo científico que realizan los geólogos y paleontólogos a través de la información paleoambiental y bioestratigráfica que proporcionan los microfósiles y su aplicación a la Crisis de Salinidad del Messiniense. Este periodo es considerado como uno de los acontecimientos más relevantes de la historia geológica del Mediterráneo y se caracteriza por una acumulación masiva de evaporitas en el fondo de la cuenca, que se relaciona con la desecación y posterior reinundación del Mediterráneo hace aproximadamente cinco millones de años. El taller consta de tres sesiones: una teórica, de introducción de los contenidos necesarios para el desarrollo de la actividad, para la que se proponen una serie de recursos bibliográficos y audiovisuales de libre acceso en internet; una práctica, de obtención de datos; y una final, de interpretación de los cambios paleoambientales que conlleva la presentación de los resultados en forma de artículo científico y posterior debate en el aula. Todos los datos necesarios para el desarrollo de la actividad se proporcionan en el presente artículo, si bien esta propuesta de taller queda abierta a las posibles modificaciones y mejoras que el profesorado considere oportunas. Para vertebrar esta propuesta, en forma de ejemplo de aplicación, se ha incluido el taller en la programación de la asignatura Biología y Geología (4º ESO). La puesta a punto de este taller pone de manifiesto que resulta idóneo para el trabajo en grupo en el aula permitiendo que el alumnado se sienta partícipe de todas las fases que constituyen una investigación científica.
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The main goal of this paper is to present the initial version of a Textile Chemical Ontology, to be used by textile professionals with the purpose of conceptualising and representing the banned and harmful chemical substances that are forbidden in this domain. After analysing different methodologies and determining that “Methontology” is the most appropriate for the purposes, this methodology is explored and applied to the domain. In this manner, an initial set of concepts are defined, together with their hierarchy and the relationships between them. This paper shows the benefits of using the ontology through a real use case in the context of Information Retrieval. The potentiality of the proposed ontology in this preliminary evaluation encourages extending the ontology with a higher number of concepts and relationships, and validating it within other Natural Language Processing applications.
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Camera traps have become a widely used technique for conducting biological inventories, generating a large number of database records of great interest. The main aim of this paper is to describe a new free and open source software (FOSS), developed to facilitate the management of camera-trapped data which originated from a protected Mediterranean area (SE Spain). In the last decade, some other useful alternatives have been proposed, but ours focuses especially on a collaborative undertaking and on the importance of spatial information underpinning common camera trap studies. This FOSS application, namely, “Camera Trap Manager” (CTM), has been designed to expedite the processing of pictures on the .NET platform. CTM has a very intuitive user interface, automatic extraction of some image metadata (date, time, moon phase, location, temperature, atmospheric pressure, among others), analytical (Geographical Information Systems, statistics, charts, among others), and reporting capabilities (ESRI Shapefiles, Microsoft Excel Spreadsheets, PDF reports, among others). Using this application, we have achieved a very simple management, fast analysis, and a significant reduction of costs. While we were able to classify an average of 55 pictures per hour manually, CTM has made it possible to process over 1000 photographs per hour, consequently retrieving a greater amount of data.
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Thesis (Master, Computing) -- Queen's University, 2016-05-29 18:11:34.114
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This qualitative study focuses on what contributes to making a music information-seeking experience satisfying in the context of everyday life. Data were collected through in-depth interviews conducted with 15 younger adults (18 to 29 years old). The analysis revealed that satisfaction could depend on both hedonic (i.e., experiencing pleasure) and utilitarian outcomes. It was found that two types of utilitarian outcomes contributed to satisfaction: (1) the acquisition of music, and (2) the acquisition of information about music. Information about music was gathered to (1) enrich the listening experience, (2) increase one's music knowledge, and/or (3) optimize future acquisition. This study contributes to a better understanding of music information-seeking behavior in recreational contexts. It also has implications for music information retrieval systems design: results suggest that these systems should be engaging, include a wealth of extra-musical information, allow users to navigate among music items, and encourage serendipitous encountering of music.
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In this paper we try to present the main trends of evolution of the ICT sector. Its dynamics, supported by a constant technical progress in ICs, compounded with “non convexities” such as network effects and high sunk costs, may either lead to a Schumpeter Mark I or Schumpeter Mark II competition regime. This means that in some segments, the market will be more competitive (Mark I), while in other it will be more monopolistic (Mark II). But a key trend is also the so called “convergence”. But digitization makes it cost effective to integrate different communications, information processing and entertainment systems and devices. Hence, Schumpeter Mark II grows at the core where software production dominates, while Schumpeter Mark I is established at the periphery. In this context, the European ICT industry is potentially smashed between two forces: the cost advantages of Asian countries on one hand, the inventiveness and dynamism of the US industry on the other hand. The way out of this very difficult situation is to create in Europe the conditions of restoring knowledge accumulation in a key sub-sector of ICT, that is software production. To do this, Europe can rely on its tradition of cooperation and knowledge sharing and on a set of institutions that have shown their ability to stimulate inter-regional cooperation. By concentrating on an ambitious project of open source software production in embarked systems and domestic networks, Europe could reach several objectives: to make freely accessible an essential facility, to stimulate competition, to help reaching the Lisbon objectives and to restore the European competitiveness in ICT.
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A Gestão de Processos de Negócio (BPM – Business Process Management) é uma abordagem que tem como objetivo melhorar a eficiência nas organizações, através da gestão dos processos, em que se realiza a sua modelação, organização e otimização de uma forma iterativa e contínua. O BPM permite suportar os processos de negócio, através da utilização de métodos, técnicas e software para projetar, representar e analisar processos organizacionais que envolvem, pessoas, organizações, aplicações, documentos e outras fontes de informação (Aalst, Hofstede, & Weske, 2003). Neste estudo é utilizado um Business Process Management System (BPMS) para realizar a modelação dos processos do Comité Européen de Rink-Hockey (CERH), para a inscrição de equipas e atletas, nos eventos realizados sob a responsabilidade deste comité. A modelação é realizada através da utilização do Business Process Model and Notation (BPMN). A utilização do BPMS foi realizada considerando as seguintes etapas: (1) desenho do processo; (2) definição do processo; (3) desenvolvimento do processo e (4) administração e utilização de processos. Pretendeu-se, demonstrar a viabilidade e operacionalidade na utilização de uma ferramenta BPMS open-source, numa abordagem BPM, na modelação e implementação de processos, em detrimento de soluções proprietárias de custo elevado. O critério adotado para a seleção da ferramenta baseia-se na análise de relatórios sobre BPMS, que nos permitiu identificar e sustentar a solução adotada (Hill, Cantara, & Kerremans, 2009; Ovum, 2010; Richardson, Moore, Clair, & Vitti, 2010; Sinur & Hill, 2010). O resultado foi o desenvolvimento dos processos na organização, com a sua modelação em BPMN e implementação num BPMS, onde podemos comprovar a abordagem BPM numa organização desportiva.
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Dannie Jost gave an introductory presentation on the emergence on open hardware phenomena, including synthetic biology and other technological environments at the HEPTech Workshop on Open Hardware on June 13 held at the GSI, Darmstadt (Germany). The workshop was organized by CERN and GSI. This event addressed the OSHW phenomenon and its implications for academia and industry with special attention to knowledge and technology transfer issues. Consideration was given to the various aspects of open source hardware development, and how these are dealt with in academia and industry. Presentations from legal experts, academics, practitioners and business provided input for the discussions and exchange of ideas.
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This qualitative study focuses on what contributes to making a music information-seeking experience satisfying in the context of everyday life. Data were collected through in-depth interviews conducted with 15 younger adults (18 to 29 years old). The analysis revealed that satisfaction could depend on both hedonic (i.e., experiencing pleasure) and utilitarian outcomes. It was found that two types of utilitarian outcomes contributed to satisfaction: (1) the acquisition of music, and (2) the acquisition of information about music. Information about music was gathered to (1) enrich the listening experience, (2) increase one's music knowledge, and/or (3) optimize future acquisition. This study contributes to a better understanding of music information-seeking behavior in recreational contexts. It also has implications for music information retrieval systems design: results suggest that these systems should be engaging, include a wealth of extra-musical information, allow users to navigate among music items, and encourage serendipitous encountering of music.
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Dannie Jost gave a presentation outlining some of the challenges to the patent system presented by open source hardware at the "Open Knowledge Festival", under the topic stream treating open design, hardware, manufacturing and making; September 19, 2012; Helsinki, Finland. This topic stream generated considerable discussion, and it serves to educate an audience that is usually very adverse to patents and copyright, and helps the researcher understand the issuing conflicts surrounding emerging technologies, in particular digital technologies, and the maker movement (digitally enabled).
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Thesis (M.S.)--University of Illinois at Urbana-Champaign.
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Mode of access: Internet.
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"February 1986."