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[This item is a preserved copy. To view the original, visit http://econtheory.org/] This paper considers an auction design framework in which bidders get partial feedback about the distribution of bids submitted in earlier auctions: either bidders are asymmetric but past bids are disclosed in an anonymous way or several auction formats are being used and the distribution of bids but not the associated formats are disclosed. I employ the analogy-based expectation equilibrium (Jehiel, 2005) to model such situations. First-price auction in which past bids are disclosed in an anonymous way generates more revenues than the second-price auction while achieving an efficient outcome in the asymmetric private values two-bidder case with independent distributions. Besides, by using several auction formats with coarse feedback a designe...
Mechanism design uses game theory to analyze how to construct mechanisms that give agents incentives to produce an outcome as optimal as possible for the mechanism designer. My dissertation is on robust mechanism design, where the mechanism designer has a great deal of uncertainty about what agents believe about other agents' preferences and beliefs. Much research on robust mechanism design has focused on finding "dominant strategy mechanisms," where agents' equilibrium actions depend only on their preferences and not their beliefs about the other agents. Focusing on such mechanisms makes uncertainty about agents' beliefs irrelevant. Chapters 2 through 5 of my dissertation explore how effective dominant strategy mechanisms are at achieving mechanism designers' goals. Mechanisms are compared by considering performance of the mechanism...
As the feature size of integrated circuits goes down to the nanometer scale, transient and permanent reliability issues are becoming a significant concern for circuit designers. Traditionally, the reliability issues were mostly handled at the device level as a device engineering problem. However, the increasing severity of reliability challenges and higher error rates due to transient upsets favor higher-level design for reliability (DFR). In this work, we develop several methods for DFR at the circuit level. A major source of transient errors is the single event upset (SEU). SEUs are caused by high-energy particles present in the cosmic rays or emitted by radioactive contaminants in the chip packaging materials. When these particles hit a N+/P+ depletion region of an MOS transistor, they may generate a temporary logic fault. Depending...
Conceptual design involves requirements analysis, functional specification, and architectural design. It remains informal and poorly understood. We studied the conceptual design activities of a representative industrial software project, Centauri, for three months with follow-up observations and discussions over the following six months. Our goal was to understand how patterns of collaboration and communication in project teams affect the convergence of the project on a common vision and a documented specification. In this paper, we present our research methodology, our findings, and their implications for process and tool support. The following observations stand out. First, convergence on a common system vision was painfully slow. The major impediment to faster progress was the difficulty that the project team had in making critical ...
This paper provides a detailed description of the general design space for metadata storage capabilities. The design space considers issues of metadata identification, typing and representation, dynamic behavior, predefined and user-defined metadata, schema discovery/update, operations, API packaging/marshalling, searching, and versioning. The design space is used to structure a retrospective analysis of the three major alternative metadata designs considered during the design of the WebDAV distributed authoring protocol. Deployment experience with WebDAV properties is also discussed, with the most successful use occurring in custom client/server pairs and in protocol extensions.
Presented on August 31, 2009 from 6 to 8 pm in the East Architecture Auditorium on the Georgia Tech Campus.
Approved for public release; distribution is unlimited
The aim of this research was to develop and validate a conceptual design management model for international, collaborative remote site projects. In the last decade or so there has been an increasing number of remotely located and often environmentally sensitive sites becoming the focus for development work involving potential investors/entrepreneurs/stakeholders or government and non-government agencies. There were no previously documented empirical examples, nor theoretical models, for remote site design management. Projects on remote sites are frequently government funded, making the approval processes, and timelines for example, subject to political influence, which means that the projects are potentially more difficult to manage, at all levels of involvement. The conceptual model was developed in association with the development of...
This paper considers an auction design framework in which bidders get partial feedback about the distribution of bids submitted in earlier auctions: either bidders are asymmetric but past bids are disclosed in an anonymous way or several auction formats are being used and the distribution of bids, but not the associated formats, is disclosed. I employ the analogy-based expectation equilibrium (Jehiel 2005) to model such situations. First-price auctions in which past bids are disclosed in an anonymous way generate more revenues than second-price auctions while achieving an efficient outcome in the asymmetric private values two-bidder case with independent distributions. Besides, by using several auction formats with coarse feedback, a designer can always extract more revenues than in Myerson's optimal auction, and yet less revenues than...
As we move towards an aging population, it is likely that an increasing number of people will require an increasing diversity of implants, but at a lower cost to the society. Also, as computer technology progresses, smaller, more powerful, and less battery intensive implants can be designed. However, present implant design methodology is highly inefficient at meeting these goals as it suffers from non-reuse of existing knowledge by relying heavily on custom designs and ASICs. The SiMS project was started with the goal of creating pre-designed, pre-tested, and pre-certified toolbox of components for biomedical implants that can be assembled in a modular fashion for various application scenarios. One of the most important components in such a tool-box is the processor. Designing such a processor is a non-trivial task and previous work ha...
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