Is it darker? Improving density representation in 2D scatter plots through a user study

Enrico Bertini, Giuseppe Santucci

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Density differences are one of the main features users perceive in 2D scatter plots. However, because of pixels' collisions, some areas become saturated and such differences are lost. To solve this problem, several proposals rely on sampling the dataset before visualizing it. Some of these introduce precise measures to understand the image degradation and use numerical differences in pixels to estimate density differences. It is our opinion that this issue deserves a deeper analysis, taking into account perceptual issues. In this paper we describe a study we conducted to understand the relationship between numerical pixel density and the perceived density. The results obtained were used to refine a sampling technique we developed to preserve relative densities in the context of 2D scatter plots.

    Original languageEnglish (US)
    Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
    EditorsR.F. Erbacher, J.C. Roberts, M.T. Grohn, K. Borner
    Pages158-167
    Number of pages10
    Volume5669
    DOIs
    StatePublished - 2005
    EventProceedings of SPIE-IS and T Electronic Imaging - Visualization and Data Analysis 2005 - San Jose, CA, United States
    Duration: Jan 17 2005Jan 18 2005

    Other

    OtherProceedings of SPIE-IS and T Electronic Imaging - Visualization and Data Analysis 2005
    CountryUnited States
    CitySan Jose, CA
    Period1/17/051/18/05

    Fingerprint

    plots
    Pixels
    Sampling
    pixels
    sampling
    Degradation
    proposals
    degradation
    collisions
    estimates

    Keywords

    • Data sampling
    • Quality metrics
    • User studies
    • Visual clutter

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Condensed Matter Physics

    Cite this

    Bertini, E., & Santucci, G. (2005). Is it darker? Improving density representation in 2D scatter plots through a user study. In R. F. Erbacher, J. C. Roberts, M. T. Grohn, & K. Borner (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 5669, pp. 158-167). [17] https://doi.org/10.1117/12.586930

    Is it darker? Improving density representation in 2D scatter plots through a user study. / Bertini, Enrico; Santucci, Giuseppe.

    Proceedings of SPIE - The International Society for Optical Engineering. ed. / R.F. Erbacher; J.C. Roberts; M.T. Grohn; K. Borner. Vol. 5669 2005. p. 158-167 17.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Bertini, E & Santucci, G 2005, Is it darker? Improving density representation in 2D scatter plots through a user study. in RF Erbacher, JC Roberts, MT Grohn & K Borner (eds), Proceedings of SPIE - The International Society for Optical Engineering. vol. 5669, 17, pp. 158-167, Proceedings of SPIE-IS and T Electronic Imaging - Visualization and Data Analysis 2005, San Jose, CA, United States, 1/17/05. https://doi.org/10.1117/12.586930
    Bertini E, Santucci G. Is it darker? Improving density representation in 2D scatter plots through a user study. In Erbacher RF, Roberts JC, Grohn MT, Borner K, editors, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 5669. 2005. p. 158-167. 17 https://doi.org/10.1117/12.586930
    Bertini, Enrico ; Santucci, Giuseppe. / Is it darker? Improving density representation in 2D scatter plots through a user study. Proceedings of SPIE - The International Society for Optical Engineering. editor / R.F. Erbacher ; J.C. Roberts ; M.T. Grohn ; K. Borner. Vol. 5669 2005. pp. 158-167
    @inproceedings{8a7256edecfe4179bcc512686f20c8c4,
    title = "Is it darker? Improving density representation in 2D scatter plots through a user study",
    abstract = "Density differences are one of the main features users perceive in 2D scatter plots. However, because of pixels' collisions, some areas become saturated and such differences are lost. To solve this problem, several proposals rely on sampling the dataset before visualizing it. Some of these introduce precise measures to understand the image degradation and use numerical differences in pixels to estimate density differences. It is our opinion that this issue deserves a deeper analysis, taking into account perceptual issues. In this paper we describe a study we conducted to understand the relationship between numerical pixel density and the perceived density. The results obtained were used to refine a sampling technique we developed to preserve relative densities in the context of 2D scatter plots.",
    keywords = "Data sampling, Quality metrics, User studies, Visual clutter",
    author = "Enrico Bertini and Giuseppe Santucci",
    year = "2005",
    doi = "10.1117/12.586930",
    language = "English (US)",
    volume = "5669",
    pages = "158--167",
    editor = "R.F. Erbacher and J.C. Roberts and M.T. Grohn and K. Borner",
    booktitle = "Proceedings of SPIE - The International Society for Optical Engineering",

    }

    TY - GEN

    T1 - Is it darker? Improving density representation in 2D scatter plots through a user study

    AU - Bertini, Enrico

    AU - Santucci, Giuseppe

    PY - 2005

    Y1 - 2005

    N2 - Density differences are one of the main features users perceive in 2D scatter plots. However, because of pixels' collisions, some areas become saturated and such differences are lost. To solve this problem, several proposals rely on sampling the dataset before visualizing it. Some of these introduce precise measures to understand the image degradation and use numerical differences in pixels to estimate density differences. It is our opinion that this issue deserves a deeper analysis, taking into account perceptual issues. In this paper we describe a study we conducted to understand the relationship between numerical pixel density and the perceived density. The results obtained were used to refine a sampling technique we developed to preserve relative densities in the context of 2D scatter plots.

    AB - Density differences are one of the main features users perceive in 2D scatter plots. However, because of pixels' collisions, some areas become saturated and such differences are lost. To solve this problem, several proposals rely on sampling the dataset before visualizing it. Some of these introduce precise measures to understand the image degradation and use numerical differences in pixels to estimate density differences. It is our opinion that this issue deserves a deeper analysis, taking into account perceptual issues. In this paper we describe a study we conducted to understand the relationship between numerical pixel density and the perceived density. The results obtained were used to refine a sampling technique we developed to preserve relative densities in the context of 2D scatter plots.

    KW - Data sampling

    KW - Quality metrics

    KW - User studies

    KW - Visual clutter

    UR - http://www.scopus.com/inward/record.url?scp=21944437522&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=21944437522&partnerID=8YFLogxK

    U2 - 10.1117/12.586930

    DO - 10.1117/12.586930

    M3 - Conference contribution

    AN - SCOPUS:21944437522

    VL - 5669

    SP - 158

    EP - 167

    BT - Proceedings of SPIE - The International Society for Optical Engineering

    A2 - Erbacher, R.F.

    A2 - Roberts, J.C.

    A2 - Grohn, M.T.

    A2 - Borner, K.

    ER -