Digital computer synthesis of admittance matrices of N+1 nodes

"March, 1967.

Three Decades in the Cold and Wet: A Career in Northern Archaeology

Thomas H. McGovern has been a pioneering researcher in the North Atlantic region for most of the past 40 years. He has taken his specialty in zooarchaeology beyond counting bones to actually addressing questions about human environment interactions and human response to extreme environmental events. A prolific writer and researcher with a multitude of publications and an impressive funding record, McGovern has always been a proponent of multidisciplinarity and international collaboration. His vision resulted in the creation of the North Atlantic Biocultural Organization (NABO) that currently has more than 400 scientific partners and has been leading projects throughout the Circum Atlantic for over 25 years. The interconnectivity of regions and global events has always been the key to his research, and as of last year, with support from the National Science Foundation Office of Polar Programs, it resulted in the creation of the Global Human Ecodynamics Alliance (GHEA) that is now taking interdisciplinarity and international collaboration to a global perspective

Multifidelity Information Fusion Algorithms for High-Dimensional Systems and Massive Data sets

We develop a framework for multifidelity information fusion and predictive inference in high-dimensional input spaces and in the presence of massive data sets. Hence, we tackle simultaneously the “big N" problem for big data and the curse of dimensionality in multivariate parametric problems. The proposed methodology establishes a new paradigm for constructing response surfaces of high-dimensional stochastic dynamical systems, simultaneously accounting for multifidelity in physical models as well as multifidelity in probability space. Scaling to high dimensions is achieved by data-driven dimensionality reduction techniques based on hierarchical functional decompositions and a graph-theoretic approach for encoding custom autocorrelation structure in Gaussian process priors. Multifidelity information fusion is facilitated through stochastic autoregressive schemes and frequency-domain machine learning algorithms that scale linearly with the data. Taking together these new developments leads to linear complexity algorithms as demonstrated in benchmark problems involving deterministic and stochastic fields in up to 10⁵ input dimensions and 10⁵ training points on a standard desktop computer

The Caves of Barbuda’s Eastern Coast: Long Term Occupation, Ethnohistory and Ritual

Barbuda is the sister island to Antigua, located in the Lesser Antilles, West Indies. This island belongs to the Miocene arch of the Lesser Antilles, along with Grande Terre of Guadeloupe, Marie Galante, and Anguilla. Barbuda, notwithstanding its small size and low elevation, has an exceptionally rich past. Recent investigations by a Brooklyn College, City University of New York led team, has discovered evidence of human activity in and around these caves from the Archaic Period down to the present day. The range of activity at these caves begins with scatters of Archaic lithics, through artifacts and faunal material possibly produced by Obeah rituals to the contemporary celebrations and feasting activities that take place within and around these caves to this day. These contemporary cave based activities are central to the Barbudan people’s relationship to their land and follow in the footsteps of the many waves of peoples that have called this island home for thousands of years. The idea of living from the land is celebrated many times a year through gatherings at the caves in which the food served has both African and Amerindian origins. Barbudans continue a long-term tradition of cave usage as shelter and feasting places where the food is cooked and shared and the only food consumed is what can be hunted and/or gathered from the wild. This tradition has been kept alive in the face of westernization and the threat of modernization. The caves of Barbuda offer a powerful example of changing human activities in one specific place through a truly longitudinal perspective