The digital availability of very large data collections from various historical and modern sources describing jigsaw pieces of the lives of individuals, challenges for new methods and approaches to realize large-scale life cycle and population reconstruction. Methods are needed that are capable of weighting all pieces of available information from a wide range of sources while considering contemporary and local circumstances. Such an approach may resemble the intelligent human reasoning in handling fuzzy, variable, erroneous and missing data.

Whereas for several decades the focus in reconstruction studies was on data matching of record pairs, promising results on group linking are now emerging. At the dawn of the development of these new and more complex population reconstruction methods, with activities in many countries - sometimes isolated, but also in research networks - it is time to bring experts together to discuss the current state of the art, and to look for opportunities for continued or renewed cooperation.

*Workshop topics (not limited to)*

- Data pre-processing and cleaning
- Standardization (of person names, places, addresses, occupational titles)
- Learning from rich data sources
- Data structures for multi-source record linkage
- Reasoning strategies
- Decision rules
- Group linking
- Probabilistic data matching
- Graph-based linking
- Historical data mining
- Methods for spatio-temporal reasoning
- Computational efficiency
- Evaluation and benchmarking
- Visualisations

*Key-note speakers*

Peter Christen, Research School of Computer Science, Australian National University, Canberra
Kris Inwood, University of Guelph, Canada
Arno Knobbe, Leiden Institute of Advanced Computer Science, Leiden, The Netherlands

*Paper submission *

We welcome the submission of full papers (with a maximum of 8 pages) and demonstration descriptions. Papers will be peer-reviewed. All accepted papers will be made available electronically at the start of the workshop. Papers will be presented in oral sessions of 20 minutes, followed by 10 minutes of discussion. There will be ample time for demonstrations and general discussions.