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It's Time to Build an Eastern Woodlands Megabase

10/9/2017

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Back in the late 2000's, I took the terrifying step of creating folders on my computer to start pursing my formal dissertation research. Around the same time, I realized that my system for organizing my paper files had become a sandbag. The physical compartments I was using to segregate "different" aspects of my work were hurting my ability to see and explore the overlapping areas of several inter-connected problems. I tore everything apart and put it back together again so the overall structure was different, the grains of information were different, and the "bins" were collapsed into a single well that I could draw from. In order to stop blindly analyzing the different parts of the elephant and start trying to understand the whole animal, you first have to understand  that you're looking at pieces of a much larger puzzle.

It was more of a strategy than an epiphany. 

Last week I got into the nitty-gritty of a SEAC paper I'm writing with David G. Anderson (University of Tennessee). We're using various large datasets to try to describe and interpret patterns of change in archaeological remains that could be related to changes in the size, structure, and distribution of human populations in the Eastern Woodland during the Late Pleistocene and Early Holocene.  

As I started pulling together information (from PIDBA, DINAA, and my ongoing radiocarbon compilation) and thinking about how to organize it, I realized that keeping the databases separate was both a logistical hassle and an analytical problem. I invested in dumping all the information into a single relational database that we can use for this paper and that I'll continue to update in the future. I've been calling it "Megabase" in my head. So that's what it is until it gets a better name.

​Here is an illustration that I'll briefly discuss:
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  • DINAA is a compilation of state-curated site data, one entry per Smithsonian Trinomial;
  • PIDBA has county-by-county counts of various kinds of Paleoindian projectile points;
  • EWHADP is a compilation of prehistoric structure data (keyed to both county and Smithsonian Trinomial);
  • The Kirk Project is point-by-point attribute data, with most entries having county-level provenience;
  • Most of the entries in the radiocarbon compilation have a Smithsonian Trinomial.
On the left is what I'm building now. I used GIS to generate a listing of "center" UTM coordinates (n=2097) for every county in the eastern US (everything east of the first tier of states west of the Mississippi River) and much of eastern Canada. I'm calling that the "County Core." That coordinate list lets me easily create a spatially-reference file for whatever other information I want from any of the other databases without needing to know the exact locations of archaeological sites.  Making a county-level map of all eastern radiocarbon dates in the database (9,533 and counting) in the eastern US is just a matter of a few button clicks in Access, Excel, and GIS. The same is true of the PIDBA data, the Kirk Project data, the household archaeology data, and the DINAA data. 

The Megabase of Today will be fine for the SEAC paper and for the near future. It will be able to do a lot. Ideally, however, the Megabase of the Future will have DINAA serving as both a "router" for data that is attached to a Smithsonian Trinomial and an analytical tool in its own right. One issue is that not all states are currently participating (and therefore not all Smithsonian Trinomials -- the "addresses" for sites -- are in the system).  Another issue is that the site forms (and therefore the site information that is collected and stored) differ by state. To reach its full potential, DINAA data will have to be supplemented by additional data about the materials recovered from sites, how sites were recorded, etc. Ensuring that we're making "apples to apples" comparisons will be a significant chore -- DINAA currently has information on somewhere in the neighborhood of half a million sites. You can't just sit on your couch and cross-check all that.

I know enough to be dangerous with a computer, but I'm not sufficiently sophisticated to know the nuts-and-bolts options for building the Megabase of the Future. In 2015 we did a sort of "proof" of concept to demonstrate that the EWHADP and DINAA could be linked together. I'm not sure if that is they way to go or not. Perhaps there's something that can be done with blockchain technology -- it sure sounds cool.

Anyway, I'm going to get the Megabase of Today functional in time to do the analysis for the SEAC paper we'll give in a month. If you're interested in talking about the Megabase of the Future, please let me know.
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EWHADP: Fresh Data (and Bumper Stickers) Available Soon

9/29/2015

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I hope to be able to announce the latest iteration of the Eastern Woodlands Household Archaeology Data Project (EWHADP) database soon.  The last database release (containing information on over 2100 structures) was all the way back in March of 2014.  Gah!
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​The project got off to a quick start in February of 2014, but stalled when I had to direct my energies elsewhere later that year. I spent the 2014-2015 academic year teaching a 4-4 at Grand Valley State University, and it was difficult to find time to do anything with the EWHADP other than teach look at the box of files and participate in a trial linking of the EWHADP database with DINAA.  GVSU undergraduate Emily Gilhooly did make some progress on the database, continuing the process of consulting the original records in order to re-code some fields and add new data to others.  

With donated cash in hand from a successful GoFundMe campaign, I was able to hire University of South Carolina doctoral student Laura Clifford to work on the project this semester.  Laura's first job is to finish the checking and re-coding of all the records currently in the database. She's working on that now.  When that task is complete, we'll make the new database available and she'll move on to the next job: adding new records.  That will involve tracking down leads from publications we've already seen as well as finding new sources of data in print publications and online. Eventually  I hope to give Laura the the keys to the EWHADP website so that she can write the "What's New" blurbs as she adds new structures, update the maps, and keep the online bibliography up to date. 

I would like to keep this project going next semester, but I'm not going to ask for more money until I have some results from this semester to demonstrate success.  

I would like to again thank those made a cash contribution to help get the EWHADP out of mothballs and running again: David Cusack, Ken Kosidlo, Josh Wells, and a donor who wishes to remain anonymous. In addition to my sincere gratitude, I have (as promised) a limited edition bumper sticker for each of you. And I owe you beers.

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Data from "Functional and Stylistic Variability in Paleoindian and Early Archaic Projectile Points from Midcontinental North America"

3/3/2015

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I have added an Excel file of the basic dataset for my 2013 paper in North American Archaeologist to the "Data" section of the website.  The file contains basic information on provenience (county), UTMs (county center), typological category, and morphometric data for the 1,771 Paleoindian and Early Archaic projectile points that I used in that study.  Like the 2014 AENA paper, the NAA paper was produced from a portion of the analysis in my dissertation. 

The samples I used for the morphometric analysis in my dissertation and in the NAA paper were identical, so the data in the Excel file are also in the appendices of my dissertation.  I'm hoping that providing the data in an electronic format will save someone a great deal of time doing data entry, and will encourage the use of the dataset that took me who-in-the-hell-knows-how-many hours and miles to collect, compile, and produce.  The measurements used, as well as the procedures for taking them, are defined in the paper and in my dissertation.

The ultimate goal of the two analyses (raw material and morphometric) was to produce a quantitative description of the apparent sequence of material culture change from homogenous (Early Paleoindian) --> regionalized (Late Paleoindian) --> homogenous (Early Archaic) that characterizes the Pleistocene-Holocene transition in the Midcontinent.  A quantitative description allowed an "apples to apples" comparison with data from model experiments, providing a basis for evaluating some alternative scenarios explaining the regionalization as a result of various changes in social network structure.  As the time to my defense was ticking away, I had to sacrifice some of the modeling work in order to get finished.  I was able to draw some conclusions, but a satisfying analysis of the "social boundary" question is still in the future.  Once I get set up at my new job I'll be able to restart the modeling work, add data from the southeast to my dataset, and reboot on the question of the social networks of early hunter-gatherers in eastern North America.


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Data From "Changing Scales of Lithic Raw Material Transport Among Early Hunter-Gatherers in Midcontinental North America"

3/2/2015

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I am a proponent of openly sharing information, and one of my purposes in creating this website was to create a way that I could make available data from own papers and research projects.  I realized when I recently paid my bill for the site that it has been a year and I have yet to post any data.  So I'm starting now.

I have added an Excel file of the basic dataset for my recent paper in Archaeology of Eastern North America to the "Data" section of the website.  The file contains basic information on provenience (county), UTMs (county center), raw material, and typological category for the 926 projectile points that I used in that study.  The AENA paper was produced from a portion of the analysis in my dissertation.

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