LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 7 of total 7

Search options

  1. Article ; Online: What's the Situation with Situated Visualization? A Survey and Perspectives on Situatedness.

    Bressa, Nathalie / Korsgaard, Henrik / Tabard, Aurelien / Houben, Steven / Vermeulen, Jo

    IEEE transactions on visualization and computer graphics

    2021  Volume 28, Issue 1, Page(s) 107–117

    Abstract: Situated visualization is an emerging concept within visualization, in which data is visualized in situ, where it is relevant to people. The concept has gained interest from multiple research communities, including visualization, human-computer ... ...

    Abstract Situated visualization is an emerging concept within visualization, in which data is visualized in situ, where it is relevant to people. The concept has gained interest from multiple research communities, including visualization, human-computer interaction (HCI) and augmented reality. This has led to a range of explorations and applications of the concept, however, this early work has focused on the operational aspect of situatedness leading to inconsistent adoption of the concept and terminology. First, we contribute a literature survey in which we analyze 44 papers that explicitly use the term "situated visualization" to provide an overview of the research area, how it defines situated visualization, common application areas and technology used, as well as type of data and type of visualizations. Our survey shows that research on situated visualization has focused on technology-centric approaches that foreground a spatial understanding of situatedness. Secondly, we contribute five perspectives on situatedness (space, time, place, activity, and community) that together expand on the prevalent notion of situatedness in the corpus. We draw from six case studies and prior theoretical developments in HCI. Each perspective develops a generative way of looking at and working with situatedness in design and research. We outline future directions, including considering technology, material and aesthetics, leveraging the perspectives for design, and methods for stronger engagement with target audiences. We conclude with opportunities to consolidate situated visualization research.
    MeSH term(s) Augmented Reality ; Computer Graphics ; Humans ; Surveys and Questionnaires
    Language English
    Publishing date 2021-12-24
    Publishing country United States
    Document type Journal Article
    ISSN 1941-0506
    ISSN (online) 1941-0506
    DOI 10.1109/TVCG.2021.3114835
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  2. Book ; Online: Studying Breakdowns in Interactions with Smart Speakers

    Avdic, Mirzel / Vermeulen, Jo

    2019  

    Abstract: The popularity of voice-controlled smart speakers with intelligent personal assistants (IPAs) like the Amazon Echo and their increasing use as an interface for other Internet of Things (IoT) technologies in the home provides opportunities to study smart ... ...

    Abstract The popularity of voice-controlled smart speakers with intelligent personal assistants (IPAs) like the Amazon Echo and their increasing use as an interface for other Internet of Things (IoT) technologies in the home provides opportunities to study smart speakers as an emerging and ubiquitous IoT device. Prior research has studied how smart speaker usage has unfolded in homes and how the devices have been integrated into people's daily routines. In this context, researchers have also observed instances of smart speakers' 'black box' behaviour. In this position paper, we present findings from a study we conducted to specifically investigate such challenges people experience around intelligibility and control of their smart speakers, for instance, when the smart speaker interfaces with other IoT systems. Reflecting on our findings, we discuss new possible directions for smart speakers including physical intelligibility, situational physical interaction, and providing access to alternative interpretations in shared and non-shared contexts.

    Comment: Proceedings of the CHI 2019 Workshop on New Directions for the IoT: Automate, Share, Build, and Care, (arXiv:1906.06089)
    Keywords Computer Science - Human-Computer Interaction
    Subject code 303
    Publishing date 2019-06-17
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  3. Book ; Online: SimCURL

    Chu, Hang / Khasahmadi, Amir Hosein / Willis, Karl D. D. / Anderson, Fraser / Mao, Yaoli / Tran, Linh / Matejka, Justin / Vermeulen, Jo

    Simple Contrastive User Representation Learning from Command Sequences

    2022  

    Abstract: User modeling is crucial to understanding user behavior and essential for improving user experience and personalized recommendations. When users interact with software, vast amounts of command sequences are generated through logging and analytics systems. ...

    Abstract User modeling is crucial to understanding user behavior and essential for improving user experience and personalized recommendations. When users interact with software, vast amounts of command sequences are generated through logging and analytics systems. These command sequences contain clues to the users' goals and intents. However, these data modalities are highly unstructured and unlabeled, making it difficult for standard predictive systems to learn from. We propose SimCURL, a simple yet effective contrastive self-supervised deep learning framework that learns user representation from unlabeled command sequences. Our method introduces a user-session network architecture, as well as session dropout as a novel way of data augmentation. We train and evaluate our method on a real-world command sequence dataset of more than half a billion commands. Our method shows significant improvement over existing methods when the learned representation is transferred to downstream tasks such as experience and expertise classification.
    Keywords Computer Science - Artificial Intelligence
    Subject code 006 ; 004
    Publishing date 2022-07-29
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  4. Article ; Online: MyBrush: Brushing and Linking with Personal Agency.

    Koytek, Philipp / Perin, Charles / Vermeulen, Jo / Andre, Elisabeth / Carpendale, Sheelagh

    IEEE transactions on visualization and computer graphics

    2017  Volume 24, Issue 1, Page(s) 605–615

    Abstract: We extend the popular brushing and linking technique by incorporating personal agency in the interaction. We map existing research related to brushing and linking into a design space that deconstructs the interaction technique into three components: ... ...

    Abstract We extend the popular brushing and linking technique by incorporating personal agency in the interaction. We map existing research related to brushing and linking into a design space that deconstructs the interaction technique into three components: source (what is being brushed), link (the expression of relationship between source and target), and target (what is revealed as related to the source). Using this design space, we created MyBrush, a unified interface that offers personal agency over brushing and linking by giving people the flexibility to configure the source, link, and target of multiple brushes. The results of three focus groups demonstrate that people with different backgrounds leveraged personal agency in different ways, including performing complex tasks and showing links explicitly. We reflect on these results, paving the way for future research on the role of personal agency in information visualization.
    MeSH term(s) Computer Graphics ; Humans ; Personal Autonomy ; Software
    Language English
    Publishing date 2017-08-29
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1941-0506
    ISSN (online) 1941-0506
    DOI 10.1109/TVCG.2017.2743859
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  5. Article ; Online: Exploration Strategies for Discovery of Interactivity in Visualizations.

    Blascheck, Tanja / Vermeulen, Lindsay MacDonald / Vermeulen, Jo / Perin, Charles / Willett, Wesley / Ertl, Thomas / Carpendale, Sheelagh

    IEEE transactions on visualization and computer graphics

    2018  Volume 25, Issue 2, Page(s) 1407–1420

    Abstract: We investigate how people discover the functionality of an interactive visualization that was designed for the general public. While interactive visualizations are increasingly available for public use, we still know little about how the general public ... ...

    Abstract We investigate how people discover the functionality of an interactive visualization that was designed for the general public. While interactive visualizations are increasingly available for public use, we still know little about how the general public discovers what they can do with these visualizations and what interactions are available. Developing a better understanding of this discovery process can help inform the design of visualizations for the general public, which in turn can help make data more accessible. To unpack this problem, we conducted a lab study in which participants were free to use their own methods to discover the functionality of a connected set of interactive visualizations of public energy data. We collected eye movement data and interaction logs as well as video and audio recordings. By analyzing this combined data, we extract exploration strategies that the participants employed to discover the functionality in these interactive visualizations. These exploration strategies illuminate possible design directions for improving the discoverability of a visualization's functionality.
    MeSH term(s) Adolescent ; Adult ; Computer Graphics ; Female ; Fixation, Ocular/physiology ; Humans ; Image Processing, Computer-Assisted ; Internet ; Male ; Research Design ; User-Computer Interface ; Young Adult
    Language English
    Publishing date 2018-02-05
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1941-0506
    ISSN (online) 1941-0506
    DOI 10.1109/TVCG.2018.2802520
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  6. Article: Measurable impact of RNA quality on gene expression results from quantitative PCR

    Vermeulen, Joëlle / De Preter, Katleen / Lefever, Steve / Nuytens, Justine / De Vloed, Fanny / Derveaux, Stefaan / Hellemans, Jan / Speleman, Frank / Vandesompele, Jo

    Nucleic acids research. 2011 May, v. 39, no. 9

    2011  

    Abstract: Compromised RNA quality is suggested to lead to unreliable results in gene expression studies. Therefore, assessment of RNA integrity and purity is deemed essential prior to including samples in the analytical pipeline. This may be of particular ... ...

    Abstract Compromised RNA quality is suggested to lead to unreliable results in gene expression studies. Therefore, assessment of RNA integrity and purity is deemed essential prior to including samples in the analytical pipeline. This may be of particular importance when diagnostic, prognostic or therapeutic conclusions depend on such analyses. In this study, the comparative value of six RNA quality parameters was determined using a large panel of 740 primary tumour samples for which real-time quantitative PCR gene expression results were available. The tested parameters comprise of microfluidic capillary electrophoresis based 18S/28S rRNA ratio and RNA Quality Index value, HPRT1 5'-3' difference in quantification cycle (Cq) and HPRT1 3' Cq value based on a 5'/3' ratio mRNA integrity assay, the Cq value of expressed Alu repeat sequences and a normalization factor based on the mean expression level of four reference genes. Upon establishment of an innovative analytical framework to assess impact of RNA quality, we observed a measurable impact of RNA quality on the variation of the reference genes, on the significance of differential expression of prognostic marker genes between two cancer patient risk groups, and on risk classification performance using a multigene signature. This study forms the basis for further rational assessment of reverse transcription quantitative PCR based results in relation to RNA quality.
    Keywords capillary electrophoresis ; gene expression ; gene expression regulation ; genes ; genetic markers ; messenger RNA ; neoplasms ; patients ; quantitative polymerase chain reaction ; reverse transcriptase polymerase chain reaction ; ribosomal RNA ; risk ; risk groups ; transcription (genetics)
    Language English
    Dates of publication 2011-05
    Size p. e63.
    Document type Article
    ZDB-ID 186809-3
    ISSN 0301-5610 ; 0305-1048
    ISSN 0301-5610 ; 0305-1048
    DOI 10.1093/nar/gkr065
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

    In stock of ZB MED Bonn / Germany

    Z 79/704: Show issues

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  7. Article: External oligonucleotide standards enable cross laboratory comparison and exchange of real-time quantitative PCR data

    Vermeulen, Joëlle / Pattyn, Filip / De Preter, Katleen / Vercruysse, Liesbeth / Derveaux, Stefaan / Mestdagh, Pieter / Lefever, Steve / Hellemans, Jan / Speleman, Frank / Vandesompele, Jo

    Nucleic acids research. 2009 Nov., v. 37, no. 21

    2009  

    Abstract: The quantitative polymerase chain reaction (qPCR) is widely utilized for gene expression analysis. However, the lack of robust strategies for cross laboratory data comparison hinders the ability to collaborate or perform large multicentre studies ... ...

    Abstract The quantitative polymerase chain reaction (qPCR) is widely utilized for gene expression analysis. However, the lack of robust strategies for cross laboratory data comparison hinders the ability to collaborate or perform large multicentre studies conducted at different sites. In this study we introduced and validated a workflow that employs universally applicable, quantifiable external oligonucleotide standards to address this question. Using the proposed standards and data-analysis procedure, we obtained a perfect concordance between expression values from eight different genes in 366 patient samples measured on three different qPCR instruments and matching software, reagents, plates and seals, demonstrating the power of this strategy to detect and correct inter-run variation and to enable exchange of data between different laboratories, even when not using the same qPCR platform.
    Keywords computer software ; gene expression ; genes ; nucleic acids ; oligonucleotides ; patients ; quantitative polymerase chain reaction
    Language English
    Dates of publication 2009-11
    Size p. e138.
    Document type Article
    ZDB-ID 186809-3
    ISSN 0301-5610 ; 0305-1048
    ISSN 0301-5610 ; 0305-1048
    DOI 10.1093/nar/gkp721
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

    In stock of ZB MED Bonn / Germany

    Z 79/704: Show issues

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

To top