title: Experiences in deploying metadata analysis tools for institutional repositories

authors: Nichols, David M.

subjects: computer science

abstract: Current institutional repository software provides few tools to help metadata librarians understand and analyze their collections. In this article, we compare and contrast metadata analysis tools that were developed simultaneously, but independently, at two New Zealand institutions during a period of national investment in research repositories: the Metadata Analysis Tool (MAT) at The University of Waikato, and the Kiwi Research Information Service (KRIS) at the National Library of New Zealand.

The tools have many similarities: they are convenient, online, on-demand services that harvest metadata using OAI-PMH; they were developed in response to feedback from repository administrators; and they both help pinpoint specific metadata errors as well as generating summary statistics. They also have significant differences: one is a dedicated tool wheres the other is part of a wider access tool; one gives a holistic view of the metadata whereas the other looks for specific problems; one seeks patterns in the data values whereas the other checks that those values conform to metadata standards. Both tools work in a complementary manner to existing Web-based administration tools. We have observed that discovery and correction of metadata errors can be quickly achieved by switching Web browser views from the analysis tool to the repository interface, and back. We summarize the findings from both tools' deployment into a checklist of requirements for metadata analysis tools.

text: Experiences in deploying metadata analysis tools for institutional repositories Current institutional repository software provides few tools to help metadata librarians understand and analyze their collections. In this article, we compare and contrast metadata analysis tools that were developed simultaneously, but independently, at two New Zealand institutions during a period of national investment in research repositories: the Metadata Analysis Tool (MAT) at The University of Waikato, and the Kiwi Research Information Service (KRIS) at the National Library of New Zealand.

The tools have many similarities: they are convenient, online, on-demand services that harvest metadata using OAI-PMH; they were developed in response to feedback from repository administrators; and they both help pinpoint specific metadata errors as well as generating summary statistics. They also have significant differences: one is a dedicated tool wheres the other is part of a wider access tool; one gives a holistic view of the metadata whereas the other looks for specific problems; one seeks patterns in the data values whereas the other checks that those values conform to metadata standards. Both tools work in a complementary manner to existing Web-based administration tools. We have observed that discovery and correction of metadata errors can be quickly achieved by switching Web browser views from the analysis tool to the repository interface, and back. We summarize the findings from both tools' deployment into a checklist of requirements for metadata analysis tools.

year: 2009-04

title: Bi-level document image compression using layout information

authors: Inglis, Stuart J.

subjects: computer science

abstract: Most bi-level images stored on computers today comprise scanned text, and their number is escalating because of the drive to archive large volumes of paper-based material electronically. These documents are stored using generic bi-level image technology, based either on classical run-length coding, such as the CCITT Group 4 method, or on modern schemes such as JBIG that predict pixels from their local image context. However, image compression methods that are tailored specifically for images known to contain printed text can provide noticeably superior performance because they effectively enlarge the context to the character level, at least for those predictions for which such a context is relevant. To deal effectively with general documents that contain text and pictures, it is necessary to detect layout and structural information from the image, and employ different compression techniques for different parts of the image. Such techniques are called document image compression methods.

text: Bi-level document image compression using layout information Most bi-level images stored on computers today comprise scanned text, and their number is escalating because of the drive to archive large volumes of paper-based material electronically. These documents are stored using generic bi-level image technology, based either on classical run-length coding, such as the CCITT Group 4 method, or on modern schemes such as JBIG that predict pixels from their local image context. However, image compression methods that are tailored specifically for images known to contain printed text can provide noticeably superior performance because they effectively enlarge the context to the character level, at least for those predictions for which such a context is relevant. To deal effectively with general documents that contain text and pictures, it is necessary to detect layout and structural information from the image, and employ different compression techniques for different parts of the image. Such techniques are called document image compression methods.

year: 1996-01

title: Te Kotahitanga: culturally responsive professional development for teachers

authors: Bishop, Russell

subjects: indigenous

abstract: Te Kotahitanga is a research and professional development project that aims to support teachers to raise the achievement of New Zealand's indigenous Māori students in public/mainstream classrooms. An Effective Teaching Profile, developed from the voices of Māori students, their families, principals and some of their teachers, provides direction and focus for both the classroom pedagogy and the professional development. While the authors understand that there are many institutional changes necessary at the school level, this paper focuses on the professional learning opportunities developed for classroom teachers within this project to support the development of more effective classroom relationships and interactions with Māori students. This has resulted in Māori students attending school more regularly, engaging as learners and achieving to levels where they begin to realise their true potential.

text: Te Kotahitanga: culturally responsive professional development for teachers Te Kotahitanga is a research and professional development project that aims to support teachers to raise the achievement of New Zealand's indigenous Māori students in public/mainstream classrooms. An Effective Teaching Profile, developed from the voices of Māori students, their families, principals and some of their teachers, provides direction and focus for both the classroom pedagogy and the professional development. While the authors understand that there are many institutional changes necessary at the school level, this paper focuses on the professional learning opportunities developed for classroom teachers within this project to support the development of more effective classroom relationships and interactions with Māori students. This has resulted in Māori students attending school more regularly, engaging as learners and achieving to levels where they begin to realise their true potential.

year: 2010-05