Title of dissertation: THE BUSINESS CYCLE CONSEQUENCES OF INFORMAL LABOR MARKETS Alan Finkelstein Shapiro Doctor of Philosophy, 2013 Dissertation directed by: Professor S. Borağan Aruoba Professor John C. Haltiwanger Department of Economics This dissertation explores the connection between the structure of labor markets and business cycle dynamics, with a focus on informality. The first chapter...

NAND flash-based solid-state drives (SSDs) are increasingly popular in enterprise server systems because of their advantages over hard disk drives such as higher performance and lower power consumption. However, the limited and unpredictable lifetime of SSDs remains to be a serious obstacle to wider adoption of SSDs in enterprise systems. In this paper, we propose a novel recovery-aware dynamic...

Recent improvements in speech recognition technology have resulted in products that can now demonstrate commercial value in a variety of applications. Many vendors are marketing products which combine ASR applications including continuous dictation, command-and-control interfaces, and transcription of recorded speech at an accuracy of 98%. In this study, we measured the accuracy of certain comm...

Nowadays web services have become one of the main technologies in the development of web applications. According to that providers now offer an increasing number of capabilities as web services. Furthermore, in the recent years, such deployment trend has seen the success of REST architecture and, consequently, the proliferation of RESTful web services. This work focuses on the semantic descript...

In this paper we present a non conventional joint data demodulation-pseudo-noise (PN) code tracking scheme for direct sequence (D8) spread-spectrum (88) signals which solves problems of components imbalance and sensitivity with a remarkable hardware simplicity and no performance degradation. An integrate-and-dump Costas loop is employed for carrier recovery and data demodulation of the 88 signa...

To adapt information effectively to instructional contexts, we need active learning environments that reason about the domain, users mental state and information needs, the general context of information use, as well as about strategies and methods for designing effective information presentations using multiple media. The paper proposes a generic multi-agent architecture for cooperative multim...

Tree multicast is a well established concept in wired networks. Two versions, per-source tree multicast (e.g., DVMRP) and shared tree multicast (e.g., Core Based Tree), account for the majority of the wireline implementations. In this paper, we extend the tree multicast concept to wireless, mobile, multihop networks for applications ranging from ad hoc networking to disaster recovery and battle...

In this paper. we propose a baseband OFDM receiver for highspeed wireless local area network defined in IEEE 802.1 la physical layer. Algorithms for channel estimation/equalization. timing recovery, carrier frequency acquisition/tracking, and sampling clock tracking are individually designed and later integrated into a receiver architecture. Simulation results show that the proposed OFDM receiv...

Traditional Danish reading training for dyslexic readers typically involves the presence of a professional reading therapist for guidance, advice and evaluation. Allowing dyslexic readers to train their reading skills on their own could not only benefit the dyslexics themselves in terms of increased flexibility but could also allow professional therapists to increase the amount of dyslexic read...

The recognition of the goal a user is pursing when interacting with a software application is a crucial task for an interface agent as it serves as a context for making opportune interventions to provide assistance to the user. The prediction of the user goal must be fast and a goal recognizer must be able to make early predictions with few observations of the user actions. In this work we prop...