title: Semantic enrichment by non-experts: Usability of manual annotation tools

authors: Hinze, Annika

subjects: computer science

abstract: Most of the semantic content available has been generated automatically by using annotation services for existing content. Automatic annotation is not of sufficient quality to enable focused search and retrieval: either too many or too few terms are semantically annotated. User-defined semantic enrichment allows for a more targeted approach. We developed a tool for semantic annotation of digital documents and conducted an end-user study to evaluate its acceptance by and usability for non-expert users. This paper presents the results of this user study and discusses the lessons learned about both the semantic enrichment process and our methodology of exposing non-experts to semantic enrichment.

text: Semantic enrichment by non-experts: Usability of manual annotation tools Most of the semantic content available has been generated automatically by using annotation services for existing content. Automatic annotation is not of sufficient quality to enable focused search and retrieval: either too many or too few terms are semantically annotated. User-defined semantic enrichment allows for a more targeted approach. We developed a tool for semantic annotation of digital documents and conducted an end-user study to evaluate its acceptance by and usability for non-expert users. This paper presents the results of this user study and discusses the lessons learned about both the semantic enrichment process and our methodology of exposing non-experts to semantic enrichment.

year: 2012

title: Isolation and characterisation of a novel, low-temperature-1 active alkaliphilic esterase from an Antarctic desert soil metagenome

authors: Health, Caroline

subjects: Antarctic desert

abstract: A novel esterase was identified through functional screening of an Antarctic desert soil metagenomic library in E. coli. The 297-amino acid sequence had only low (< 29 %) similarity to a putative esterase from Burkholderia xenovorans. The enzyme was active over a temperature range of 7-54 °C and at alkaline pH levels, and is a potential candidate for industrial application.

text: Isolation and characterisation of a novel, low-temperature-1 active alkaliphilic esterase from an Antarctic desert soil metagenome A novel esterase was identified through functional screening of an Antarctic desert soil metagenomic library in E. coli. The 297-amino acid sequence had only low (< 29 %) similarity to a putative esterase from Burkholderia xenovorans. The enzyme was active over a temperature range of 7-54 °C and at alkaline pH levels, and is a potential candidate for industrial application.

year: 2009

title: Claiming Spaces: Proceedings of the 2007 National Maori and Pacific Psychologies Symposium 23rd-24th November 2007

authors: Levy, Michelle Patricia

subjects: Maori

abstract: This is the full conference proceedings of Claiming Spaces: Proceedings of the 2007 National Maori and Pacific Psychologies Symposium 23rd-24th November 2007.

text: Claiming Spaces: Proceedings of the 2007 National Maori and Pacific Psychologies Symposium 23rd-24th November 2007 This is the full conference proceedings of Claiming Spaces: Proceedings of the 2007 National Maori and Pacific Psychologies Symposium 23rd-24th November 2007.

year: 2008