This paper introduces Weaver, a probabilistic document retrieval system under development at Carnegie Mellon University, and discusses its performance in the TREC-8 ad hoc evaluation. We begin by describing the architecture and philosophy of the Weaver system, which represents a departure from traditional approaches to retrieval. The central ingredient is a statistical model of how a user might...

The rich empirical puzzle of the Stroop effect has traditionally been approached with narrowly focused and somewhat atheoretical models. A recent exception is a simulation model based on the WEAVER++ language theory. The present model, WACT, combines components of WEAVER++ with the memory and control processes of the ACT-R cognitive theory. WACT accounts for the time course of inhibition from i...

The weaver mutation in mice results in a severe ataxia that is attributable to the degeneration of cerebellar granule cells and dopaminergic neurons in the substantia nigra. Recent genetic studies indicate that the GIRK2 gene is altered in weaver. This gene codes for a G-protein-activated, inwardly rectifying K+ channel protein (8). The mutation results in a single amino acid substitution (glyc...

Dr. Weaver is Associate Director, Center for Educational Policy and Research; Dr. Haden is Associate Executive Director and Director, Center for Educational Policy and Research; and Dr. Valachovic is Executive Director—all at the American Dental Education Association. Direct correspondence to Dr. Richard Weaver, American Dental Education Association, 1400 K St., NW, Suite 1100, Washington, DC 2...

This paper proposes an architecture to enable the development of an XML-based aspect weaver, providing ways to manipulate programs using and XML representation of source code information. The main advantages on using this approach when implementing an aspect weaver is that there are several tools to support XML documents manipulation and the use of XML provides a standard way to represent and m...

We set up and analyze a random matrix model to study energy localization and its time behavior in two chaotically coupled systems. This investigation is prompted by a recent experimental and theoretical study of Weaver and Lobkis on coupled elastomechanical systems. Our random matrix model properly describes the main features of the findings by Weaver and Lobkis. Due to its general character, o...

Vol. L (June 2013), 289–302 289 *Ray Weaver is Assistant Professor of Business Administration, Harvard Business School, Harvard University (e-mail: [email protected]). Drazen Prelec is Professor of Management, Management Science and Economics, MIT Sloan School of Management, Massachusetts Institute of Technology (e-mail: [email protected]). This research was supported by NSF SES0519141 and the John...

We would like to thank Brian Kantor, Jim Madden, and Pat Wilson of UCSD for technical support of the Network Telescope project; Mike Gannis, Nicholas Weaver, Wendy Garvin, Team Cymru, and Stefan Savage for feedback on this document; and the Cisco PSIRT Team, Wendy Garvin, Team Cymru, Nicholas Weaver, and Vern Paxson for discussion as events unfolded. Support for this work was provided by Cisco ...

A female with the Weaver syndrome is reported. In addition to the characteristic manifestations of overgrowth and advanced bone age, the facies were typical, with a broad forehead, hypertelorism, a long philtrum, micrognathia, and large ears. Like most other patients with Weaver syndrome, she was developmentally delayed, hypertonic, and had a hoarse voice. Other clinical features included promi...

Although acromioclavicular joint separations are fairly common, the occurrence of high-grade acromioclavicular separations that require surgery is low. Various modifications of the Weaver-Dunn procedure have been popular and fairly successful methods to treat severe acromioclavicular separations, despite the fact that reconstructions have been done a number of ways. We report on the results of ...