Search results for " data"
showing 10 items of 7516 documents
Regional metacommunities in two coastal systems: spatial structure and drivers of plant assemblages
2014
Aim Biogeographical patterns in metacommunities are still poorly understood, and different processes are expected to occur in different habitats. We analysed the regional plant metacommunities of coastal habitats to test whether (1) the influence of space and climate differs between two habitats differentiated along the seashore–inland gradient, and (2) regional variation in species composition of these habitats can be ascribed to different metacommunity paradigms. Location The entire coast of the Iberian Peninsula, south-western Europe. Methods We collected data on the plant species composition of coastal sites on sand dunes across 3000 km of coastline. The sites were classified into two h…
European Vegetation Archive: now EVA really starts!
2014
European Vegetation Archive (EVA) was announced as a new initiative of the European Vegetation Survey at the EVS Meeting in Vienna in 2012. The aim of EVA is to create a centralized database of European vegetation plots by storing copies of national and regional databases on a single software platform using a unified taxonomic reference database. EVA does not affect the ongoing independent developments of source data bases and it guarantees that data property rights of the original contributors are re spected. EVA Data Property and Governance Rules were approved and the EVA website (www.euroveg.org/evadatabase) was established in 2012. Since then several European vegetationplot database…
Datan analysointi verkkokauppojen suosittelujärjestelmissä big datan konteks-tissa
2015
Tämä tutkielma keskittyy suosittelujärjestelmien yleiseen toimintaperiaattee-seen ja niiden tarjoamiin hyötyihin. Suosittelujärjestelmien toiminta täyttää Big datalle ominaiset piirteet, mistä syystä asiaa lähestytään Big datan analysointi-na. Tarkoituksena on antaa lukijalle yleiskuva suosittelujärjestelmistä, niiden toimintaperiaatteesta ja käyttötarkoituksesta. Tutkielmassa käsitellään suositte-lujärjestelmistä yhteisöllistä, yhteistoimintapohjaista, demografista ja tietä-myspohjaista suodatusta sekä hybridejä variaatioita. Lisäksi kerrotaan suositte-lujärjestelmien tarjoamista hyödyistä nimenomaan palveluntarjoajan näkökul-masta. Tutkielma on toteutettu kirjallisuuskatsauksena. Lähdeain…
Using AI to personalise emotionally appealing advertisement
2019
Personal data and information collected online by companies can be used to design and personalise advisements. This chapter extends existing research into the online behavioural advertising by proposing a model that incorporates artificial intelligence and machine learning into developing emotionally appealing advertisements. It is proposed that big data and consumer analytics collected through AI from different sources will be aggregated to have a better understanding of consumers as individuals. Personalised emotionally appealing advertisements will be created with this information and shared digitally using pragmatic advertising strategies. Theoretically, this chapter contributes towards…
Recent challenges to contemporary art databases. Digitisation Practices and Archive Development in Artist Estates
2021
Over the last decade, databases have appeared as the only solution for artist estates and collections seeking to categorise and disseminate their artworks and thereby enhance their position and reputation. Grounded in empirical work and scholarly research, this paper examines the archive digitisation practices at three high-ranking art organisations – Douglas Gordon’s studio, the Sigmar Polke Estate and the Julia Stoschek Collection – to show how the creation of databases has become central in conforming to best practices and providing valuable information to the art market. In revealing the mindset, requirements and conditions of such digitisation projects, this text offers a reflection on…
A Coding Scheme Development Methodology Using Grounded Theory for Qualitative Analysis of Pair Programming
2008
A number of quantitative studies of pair programming (the practice of two programmers working together using just one computer) have partially conflicting results. Qualitative studies are needed to explain what is really going on. We support such studies by taking a grounded theory (GT) approach for deriving a coding scheme for the objective conceptual description of specific pair programming sessions independent of a particular research goal. The present article explains why our initial attempts at using GT failed and describes how to avoid these difficulties by a predetermined perspective on the data, concept naming rules, an analysis results metamodel, and pair coding. These practices ma…
Taking non-manuality into account in collecting and analyzing Finnish Sign Language video data
2014
This paper describes our attention to research into non-manuals when collecting a large body of video data in Finnish Sign Language (FinSL). We will first of all give an overview of the data-collecting process and of the choices that we made in order for the data to be usable in research into non-manual activity (e.g. camera arrangement, video compression, and Kinect technology). Secondly, the paper will outline our plans for the analysis of the non-manual features of this data. We discuss the technological methods we plan to use in our investigation of non-manual features (i.e. computer-vision based methods) and give examples of the type of results that this kind of approach can provide us…
Error messages in relational database management systems: A comparison of effectiveness, usefulness, and user confidence
2021
Abstract The database and the database management system (DBMS) are two of the main components of any information system. Structured Query Language (SQL) is the most popular query language for retrieving data from the database, as well as for many other data management tasks. During system development and maintenance, software developers use a considerable amount of time to interpret compiler error messages. The quality of these error messages has been demonstrated to affect software development effectiveness, and correctly formulating queries and fixing them when needed is an important task for many software developers. In this study, we set out to investigate how participants ( N = 152 ) …
Genomic structure and promoter analysis of pathogen-inducedrepatgenes fromSpodoptera exigua
2009
The repat gene family encodes midgut proteins overexpressed in response to pathogen infection in the lepidopteran Spodoptera exigua. Up-regulation of repat genes has been observed after challenging the larvae with both Bacillus thuringiensis toxins and after infection with the baculovirus Autographa californica multiple nucleopolyhedrovirus. In our study, PCR amplification of the genomic region and genome walking were used to obtain the genomic structure and the sequence of the 5'-upstream region of repat1 and repat2, two of the most phylogenetically distant members of the repat family. A similar gene structure between repat1 and repat2 has been found, with conserved exon-intron positions a…
Modulation of Hepatitis C Virus NS5A Hyperphosphorylation by Nonstructural Proteins NS3, NS4A, and NS4B
1999
NS5A of the hepatitis C virus (HCV) is a highly phosphorylated protein involved in resistance against interferon and required most likely for replication of the viral genome. Phosphorylation of this protein is mediated by a cellular kinase(s) generating multiple proteins with different electrophoretic mobilities. In the case of the genotype 1b isolate HCV-J, in addition to the basal phosphorylated NS5A (designated pp56), a hyperphosphorylated form (pp58) was found on coexpression of NS4A (T. Kaneko, Y. Tanji, S. Satoh, M. Hijikata, S. Asabe, K. Kimura, and K. Shimotohno, Biochem. Biophys. Res. Commun. 205:320‐326, 1994). Using a comparative analysis of two full-length genomes of genotype 1b…