Refitting pottery fragments from the Liang Abu rockshelter, Borneo

Liang Abu is an archaeological site in East Kalimantan, Indonesia. This dataset describes the relationships between pottery fragments found during   excavations (2009-2012). Two types of relationships are defined.

A connection relationship refers to a physical connection between two fragments that were part of the same object.

A similarity relationship between fragments is defined if there is an acceptable likelihood that those fragments were part of the same object.

The dataset is composed of three tables:

relations-connection.csv (56x2): "connection" relationships between fragments. matrix. Each line describes a connection relationship between two fragments. There respective unique identifiers are given in column "frg_id1" and in column "frg_id2".

relations-similarity.csv (47x2):  "similarity" relationships between fragments. matrix. Column "frg_id" gives a fragment unique identifier, column "su_id" gives a unique identifier for the group of similar fragments it belongs to (similarity unit).

fragments.csv (177x8): contextual information concerning each fragment, with the following columns:

frg_id: unique fragment identifier

layer:  stratigraphic layer

zmin: minimal depth in centimetres where the fragment was found

zmax: maximal depth in centimetres where the fragment was found

square: square where the fragment was found

sherd.type: type of pottery sherd

thickness: thickness of the fragments in millimetres

length: length of the fragments in millimetres