The scarcity of manually labeled data for supervised machine learning methods presents a significant limitation on their ability to acquire knowledge. The use of kernels in Support Vector Machines (SVMs) provides an excellent mechanism to introduce prior knowledge into the SVM learners, such as by using unlabeled text or existing ontologies as additional knowledge sources. Our aim is to develop...

The formulation of density-functional expansion methods is extended to treat the second and higher-order terms involving the response density and spin densities with an arbitrary single-center auxiliary basis. The two-center atomic orbital products are represented by the auxiliary functions centered about those two atoms, and the mapping coefficients are determined from a local constrained vari...

The problem of phase stability calculation (and crystal structure prediction) is a fundamental problem in materials research and development, and it is typically addressed with highly accurate quantum mechanical computations on a large set of candidate structures, but has limited predictive power. To allow fast prediction of crystal structures, two concepts, usual suspect structure database and...

OBJECTIVE In this work, the authors review recent data on the different methods and techniques of TE/implant-based reconstruction to determine the complication profiles and the advantages and disadvantages of the different techniques. This information will be valuable for surgeons performing breast reconstructions. MATERIALS AND METHODS A thorough literature review was conducted by the author...

Conventional web browsers are designed to display a single web page for each window. A reader who wants to follow a link to a new web page while continuing to display the previous web page must do so by utilizing the “open link in new window” menu feature. Having done so, the reader may then control the positions and dimensions of both the old and the new windows, in order to display both web p...

We consider generalized one-matrix models in which external fields allow control over the coordination numbers on both the original and dual lattices. We rederive in a simple fashion a character expansion formula for these models originally due to Itzykson and Di Francesco, and then demonstrate how to take the large N limit of this expansion. The relationship to the usual matrix model resolvent...

The accuracy of ad-hoc document retrieval systems has plateaued in the last few years. At DFKI, we are working on so-called collaborative information retrieval (CIR) systems which unobtrusively learn from their users’ search processes. We focus on a restricted setting in CIR in which only old queries and correct answer documents to these queries are available for improving a new query. For this...

We derive a bosonic Hamiltonian from two dimensional QCD on the light-front. To obtain the bosonic theory we find that it is useful to apply the boson expansion method which is the standard technique in quantum many-body physics. We introduce bilocal boson operators to represent the gauge-invariant quark bilinears and then local boson operators as the collective states of the bilocal bosons. If...