Information Organization and Information Retrieval in the
            LIS
            Curriculum

In order to improve the efficiency of agricultural information retrieval and provide the effect methods for the information retrieval of agricultural, the intelligent searching technology of agricultural information based on ontology is proposed. The paper firstly introduces the concept of ontology, analyzes the characters of agricultural knowledge, and constructs the related agricultural knowledge ontology and knowledge base, implementing the intelligent searching of the agricultural information. The results indicate that the research on agricultural ontology can contribute to organization and searching of agricultural scientific knowledge and provide methods for information organization and searching of agricultural knowledge.

Download Full-text

Accommodating Age-Related Differences in Computer-Based Information Retrieval Tasks

Proceedings of the Human Factors and Ergonomics Society Annual Meeting ◽

10.1177/154193120705102201 ◽

2007 ◽

Vol 51 (22) ◽

pp. 1471-1475

Author(s):

Steven L Pautz ◽

Margaux M. Price ◽

Richard Pak

Keyword(s):

Older Adults ◽

Information Retrieval ◽

Spatial Ability ◽

Cognitive Abilities ◽

Information Organization ◽

Retrieval Task ◽

Adult Performance ◽

Age Related ◽

Potential Methods ◽

Age Related Changes

Previous research has shown that spatial ability is associated with performance on information retrieval tasks. Age-related changes in spatial ability may thus explain older adults' tendency to have lower performance on such tasks. However, previous studies have emphasized hierarchical information organization. The current study will examine the extent to which a different information retrieval interface can accommodate age-related changes in cognitive abilities. Younger and older adult performance in two information retrieval interfaces will be compared. One interface is meant to simulate hierarchically organized information systems while the second interface is specifically designed to reduce demands on age-related abilities while increasing demands on age-invariant abilities. It is expected that the results of this study will identify potential methods for improving information retrieval task performance for older adults.

Download Full-text

Do documento impresso à informação nas nuvens: reflexões | From printed documents to information in the clouds: reflections

Liinc em Revista ◽

10.18617/liinc.v7i1.401 ◽

2011 ◽

Vol 7 (1) ◽

Cited By ~ 1

Author(s):

Jaime Robredo

Keyword(s):

Information Retrieval ◽

Semantic Web ◽

Information Diffusion ◽

Short Review ◽

Virtual Space ◽

Information Organization ◽

Physical Support ◽

De Se

Resumo Pretende-se, neste trabalho, traçar um breve esboço da evolução histórica do livro impresso – extensível de certo modo a todos os documentos impressos – até o momento atual, quando, de certa forma, os conteúdos se liberam de sua ancoragem aos suportes físicos e se distribuem em nuvens que pairam no espaço virtual, buscando ou oferecendo a possibilidade de se aproximar de – ou de se fundir com – outras nuvens que apresentem alguma afinidade semântica. Essa evolução está marcada pelo surgimento de novos paradigmas, num ritmo continuamente acelerado, que nos encaminham a novos e extraodinários horizontes inimagináveis previamente, ou a perigos também imprevisíveis.Palavras-chave registro do conhecimento; organização da informação; difusão da informação; recuperação da informação; Internet; web; web semântica.Abstract This paper is intended to present a short review of the historic evolution of the printed book – which could be extended to all printed documents – until nowadays, when contents became free from the anchorage to their physical support, and spread out in clouds, floating in the virtual space, looking for, or offering the possibility of approaching to – or fusioning with – other clouds presenting some semantic affinity. That evolution is marked by the birth of new paradigms, in a continuously accelerated pace, guiding us toward new and marvelous horizons, previously unthinkable, or to unpredictable dangers. Keywords knowledge records; information organization; information diffusion; information retrieval; Internet; web; semantic web.

Download Full-text

A Novel Information Organization Method Based on Ontology for Unstructured Information

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.439-440.1042 ◽

2010 ◽

Vol 439-440 ◽

pp. 1042-1047

Author(s):

Zhi Gang Ji

Keyword(s):

Information Retrieval ◽

Information Organization ◽

Standard System ◽

Rule Based ◽

Retrieval Time ◽

Similarities And Differences ◽

Unstructured Information

The paper analyzes the mode and method for unstructured information, compares the similarities and differences between ontology and vocabulary and taxonomy, and discusses the position and the function of ontology for unstructured information from the two aspects of standard system of semantic net and the concept characteristic of ontology. Based on the ontologies DB, the annotation of unstructured information is obtained. Information retrieval which consists of concept-matched retrieval and rule-based reasoning retrieval is proposed with the help of information annotation. The experiment results show that rule-based retrieval has better recall and shorter retrieval time than fact-based retrieval and relationship-based retrieval.

Download Full-text

Demonstration of the Use of Tape-Recorded Information from a High Vacuum Electron Microscope

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100063007 ◽

1969 ◽

Vol 27 ◽

pp. 218-219

Author(s):

Richard E. Hartman ◽

Roberta S. Hartman ◽

Peter L. Ramos

Keyword(s):

Information Retrieval ◽

Electron Microscope ◽

Magnetic Tape ◽

High Vacuum ◽

Data Retrieval ◽

Electronic Information ◽

Electronic Data ◽

Subsequent Processing ◽

Continuous Record

We have long felt that some form of electronic information retrieval would be more desirable than conventional photographic methods in a high vacuum electron microscope for various reasons. The most obvious of these is the fact that with electronic data retrieval the major source of gas load is removed from the instrument. An equally important reason is that if any subsequent analysis of the data is to be made, a continuous record on magnetic tape gives a much larger quantity of data and gives it in a form far more satisfactory for subsequent processing.

Download Full-text

Stain contamination and embedding in electron microscopy

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100141986 ◽

1986 ◽

Vol 44 ◽

pp. 50-53

Author(s):

Hilton H. Mollenhauer

Keyword(s):

Electron Microscopy ◽

Information Retrieval ◽

Epoxy Resins ◽

Image Contrast ◽

Sample Preservation ◽

Factors Associated ◽

Amount Of Information ◽

Electron Microscopical ◽

Contrast Information

Many factors (e.g., resolution of microscope, type of tissue, and preparation of sample) affect electron microscopical images and alter the amount of information that can be retrieved from a specimen. Of interest in this report are those factors associated with the evaluation of epoxy embedded tissues. In this context, informational retrieval is dependant, in part, on the ability to “see” sample detail (e.g., contrast) and, in part, on tue quality of sample preservation. Two aspects of this problem will be discussed: 1) epoxy resins and their effect on image contrast, information retrieval, and sample preservation; and 2) the interaction between some stains commonly used for enhancing contrast and information retrieval.

Download Full-text

Information and Dose in the Scanning Transmission Ion Microscope

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s1431927600001021 ◽

1980 ◽

Vol 38 ◽

pp. 232-233

Author(s):

Fox T. R. ◽

R. Levi-Setti

Keyword(s):

Information Retrieval ◽

Electron Microscope ◽

Elastic Scattering ◽

Energy Loss ◽

Cross Sections ◽

Previous Analysis ◽

Single Scattering ◽

Screening Length ◽

Relative Damage ◽

Scanning Transmission

At an earlier meeting [1], we discussed information retrieval in the scanning transmission ion microscope (STIM) compared with the electron microscope at the same energy. We treated elastic scattering contrast, using total elastic cross sections; relative damage was estimated from energy loss data. This treatment is valid for “thin” specimens, where the incident particles suffer only single scattering. Since proton cross sections exceed electron cross sections, a given specimen (e.g., 1 μg/cm2 of carbon at 25 keV) may be thin for electrons but “thick” for protons. Therefore, we now extend our previous analysis to include multiple scattering. Our proton results are based on the calculations of Sigmund and Winterbon [2], for 25 keV protons on carbon, using a Thomas-Fermi screened potential with a screening length of 0.0226 nm. The electron results are from Crewe and Groves [3] at 30 keV.

Download Full-text