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Semantic graph

Small Finds from Roman Peasant Project (2009-2014):

Technical notes on a behavioral analysis of Roman sites in rural Tuscany.

Information may also be found at https://volweb.utk.edu/~scolli46/rppsf.html.

The code below depends on the following csv files which contain the semantic graph, as the original graph was composed in Gephi and exported:

  • dataset.csv - table of small finds listed by site, phase, and definition, by count and weight.
  • nodes.csv - the nodes of the network.
  • edges.csv - the links of the network.
  • sfcodes.csv - a list of codes used for the RPP small finds assemblage, derived from rppsfnodes.csv.
  • rppsfcodes.csv - definitions and metrics of each artifact-type.
  • qmethod.csv - quantitative metric used for each artifact-type (c: count, w: weight, p: presence/absence).

A more compact version of the network is available in JSON:

  • rppsf.json - full semantic graph with nodes and links.

The following scripts compute an index of a function or behavior, as indicated on the semantic graph above, for further multivariate analysis:

  1. rppsf-ontology.py - associates artifact-types with behaviors of interest and generates a set estimates of the intensity of that behavior as an index from 0 to 1 through random subsampling.
  2. https://github.com/scollinselliott/rppsf/blob/master/R/indices.r - used to produce plots; resamples distributions generated from the previous script to evaluate credible intervals.
  3. https://github.com/scollinselliott/rppsf/blob/master/R/mds.r - performs non-metric multidimensional scaling on the modes (argmax) of behavioral indices. Creates a distance matrix (Euclidean) and uses Kruskal's nMDA (iso.mda).
  4. https://github.com/scollinselliott/rppsf/blob/master/R/rjc-la-dist.r - calculates a measure of overall intersite variation or differentiation throught the average distance among sites' behavioral indices, for the Late Republican / Julio-Claudian and Late Antique periods.

These files can also be downloaded in a single folder from https://volweb.utk.edu/~scolli46/rppsf/rppsf.zip.

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