The dashboard made with flexdashboard using package 'pomdp' in R. See https://efp-hfx-ds.shinyapps.io/Dash_POMDP_May11/
The dashboard is to assess the COVID-19 status of one individual.
The centre node represents the current belief. (hover over node for details)
The start node (centre node after creating graph) represents a generic individual in a population whom you should assume has a small likelihood of having COVID-19, for example, depending on the population prevalence.
Then moving along one edge represents one day's time.
If the individual has developed symptoms three days ago, then allow for three observations, the first of which is developed symptoms (DS).
The observations can either increase or decrease your belief that the individual may have COVID-19.
The possible actions are Post, Test or Isolate. Post means do nothing, Test means the individual should get tested and Isolate means the individual should Isolate (test would then be administered in isolation).
Full details are included in the draft DRDC-RDDC publication: Uncertainty decision support for COVID-19 community spread with partially observable Markov decision processes Proof-of-concept military application
The R Markdown file is included in this repository. See https://blog.rstudio.com/2016/05/17/flexdashboard-easy-interactive-dashboards-for-r/
sessionInfo() R version 4.0.2 (2020-06-22) Platform: x86_64-w64-mingw32/x64 (64-bit) Running under: Windows 10 x64 (build 17763)
Matrix products: default
locale:
[1] LC_COLLATE=English_Canada.1252 LC_CTYPE=English_Canada.1252
[3] LC_MONETARY=English_Canada.1252 LC_NUMERIC=C
[5] LC_TIME=English_Canada.1252
attached base packages: [1] stats graphics grDevices utils datasets methods base
other attached packages: [1] colorspace_1.4-1 visNetwork_2.0.9 pomdp_0.99.0-1 igraph_1.2.5
loaded via a namespace (and not attached):
[1] viridisLite_0.3.0 digest_0.6.25 jsonlite_1.7.0 magrittr_1.5
[5] evaluate_0.14 highr_0.8 rlang_0.4.6 curl_4.3
[9] rmarkdown_2.3 flexdashboard_0.5.2 tools_4.0.2 htmlwidgets_1.5.1
[13] tinytex_0.24 Ternary_1.1.4 xfun_0.15 yaml_2.2.1
[17] rsconnect_0.8.16 compiler_4.0.2 pkgconfig_2.0.3 askpass_1.1
[21] htmltools_0.5.0 openssl_1.4.2 knitr_1.29
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Copyright (c) Her Majesty the Queen in Right of Canada, as represented by the Minister of National Defence, (2021).