Searching for authors named "Dorothy Curtis" – sorted by Relevance.
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Adapting an Object-Oriented Database for Disconnected Operation
- Wireless computers are often only intermittently connected to the network. Thus disconnected operation is an important aspect of wireless computing. Disconnected operation focuses on providing useful services to a mobile device even while disconnected from the network. Further, if shared data is in
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Notification in the THOR Database System
- There is an increasing amount of data in the world that is distributed over many machines. Some of this data may be relatively static. However, certain types of data may be changing frequently. Client applications may be interested in changes that are made to a small subset of the data. Notification
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An Approach to Disconnected Operation in an Object-Oriented Database
- With the advent of mobile computers, new challenges arise for software designers. This paper focuses on disconnected operation: making mobile computers work well on shared data whether the network is available or not. Initially the shared data is cached on the mobile computer. Modifications and addi
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Organic Indoor Location Discovery Seth Teller MIT CSAIL
- We describe an indoor, room-level location discovery method based on spatial variations in “wifi signatures,” i.e., MAC addresses and signal strengths of existing wireless access points. The principal novelty of our system is its organic nature; it builds signal strength maps from the natural mobili
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Diagnose Mitral Valve Prolapse
- During annual physical examinations, a primary-care physician listens to the heart using a stethoscope to assess the condition of the heart muscle and valves. This process, termed cardiac auscultation, is the primary means of diagnosing cardiac disorders, the most common of which is Mitral Valve Pro
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Theta Reference Manual
- This document describes a new programming language called Theta. Theta is a sequential, strongly-typed, object-oriented language. It provides separate mechanisms for type hierarchy, inheritance, and parametric polymorphism. It also provides separate mechanisms for specifications, which define the in
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Lessons from Developing and Deploying the Cricket Indoor Location System
- The Cricket indoor location project has been active for four years. We have developed three different versions of the system. The first version was an early proofof -concept (Cricket v0), which led to the first prototype (Cricket v1). Cricket v1 has seen extensive use by us and by a few other resear
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Thor/Theta Users Guide
- This document provides an introduction to using Thor, an object oriented database, and its language Theta. This document applies to Thor Release 0.1. Topics include installation, writing Theta code to implement objects, writing C++ application code, and debugging.
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