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This paper describes an ongoing Japan-US project that is developing the kind of advanced computer support for online crowd-scale deliberation that is needed to enable smarter and more connected communities. Our shared work has focused on addressing both these problems: (1) ideation: helping crowds more effectively develop potential win-win solutions, and (2) decision-making: helping crowds get to...
While a number of schemes exist for mixed-criticality scheduling in a single processor setting, no solution exists to cover the industry need for end-to-end scheduling across multiple processors in a pipeline. In this paper, we present an end-to-end zero-slack rate-monotonic scheme (ZSRM) based on real-time pipelines, called the ZSRM pipeline scheduler, that addresses this need. Under ZSRM, each task...
Cyber-physical system (CPS) have been recognized as a top-priority in research and development. The innovations sought for CPS demand them to deal effectively with dynamicity of their environment, to be scalable, adaptive, tolerant to threats, etc. -- i.e. they have to be smart. Although approaches in software engineering (SE) exist that individually meet these demands, their synergy to address the...
In commercial-off-the-shelf (COTS) multi-core systems, a task running on one core can be delayed by other tasks running simultaneously on other cores due to interference in the shared DRAM main memory. Such memory interference delay can be large and highly variable, thereby posing a significant challenge for the design of predictable real-time systems. In this paper, we present techniques to provide...
In commercial-off-the-shelf (COTS) multi-core systems, the execution times of tasks become hard to predict because of contention on shared resources in the memory hierarchy. In particular, a task running in one processor core can delay the execution of another task running in another processor core. This is due to the fact that tasks can access data in the same cache set shared among processor cores...
Negotiation is usually dealt with package deals, where all issues are considered together. We propose a hierarchical negotiation approach where various sets of issues are negotiated at different levels. As the number of interdependent issues in negotiation grows, it becomes computationally intractable to generate proposals on all issues and to evaluate such proposals. By modeling all issues in negotiation...
Most real-world negotiation involves multiple interdependent issues, which makes an agent's utility functions complex. Traditional negotiation mechanisms, which were designed for linear utilities, do not fare well in nonlinear contexts. One of the main challenges in developing effective nonlinear negotiation protocols is scalability, it can be extremely difficult to find high-quality solutions when...
Humanity now finds itself faced with a range of highly complex problems - such as climate change, the spread of disease, international security, scientific collaborations, product development, and so on - that call upon us to bring together large numbers of experts and stakeholders to deliberate collectively on a global scale. Collocated meetings can however be impractically expensive, severely limit...
Most real-world negotiation involves multiple interdependent issues, which makes an agent's utility functions nonlinear. Traditional negotiation mechanisms, which were designed for linear utilities, do not fare well in nonlinear contexts. One of the main challenges in developing effective nonlinear negotiation protocols is scalability; they can't find a high-quality solution when there are many issues,...
Most real-world negotiation involves multiple interdependent issues, which makes an agent's utility functions nonlinear. Traditional negotiation mechanisms, which were designed for linear utilities, do not fare well in nonlinear contexts. One of the main challenges in developing effective nonlinear negotiation protocols is scalability; they can produce excessively high failure rates, when there are...
Multiple issue negotiation represents an important field of study. Our work focuses on negotiations with multiple interdependent issues in which agent utility functions are highly nonlinear. This paper presents the following three novel points on multiple interdependent issues negotiations. First, we define a utility function based on ``cone-constraints". This utility function is more realistic...
A methodology for suppressing musical noise produced by signal subspace speech enhancement is presented. An auditory post-filter is placed at the output of the subspace filter to smooth the enhanced speech spectra. By utilizing a perceptual filter, averaging is performed in a manner similar to that of the human auditory system. As such, distortion to the underlying speech signal is reduced.
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