We describe experiments with a versatile pictorial prototype based learning scheme for 3D object recognition. The GRBF scheme seems to be amenable to realization in biophysical hardware because the only kind of ...

Practitioners agree that unreliable links, which fluctuate between working and not working, are an important characteristic of wireless networks. In contrast, most theoretical models of radio networks fix a static set of ...

BUILD is a proposed tool for constructing systems from existing modules. BUILD system descriptions are composed of module declarations and assertions of how modules refer to each other. An extensible library of information ...

Build is a tool for keeping modular systems in a consistent state by managing the construction tasks (e.g. compilation, linking, etc.) associated with such systems. It employs a user supplied system model and a ...

We describe a project to capitalize on newly available levels of computational resources in order to understand human cognition. We will build an integrated physical system including vision, sound input and output, and ...

An explanatory component is an important ingredient in any complex AI system. A simple generative scheme to build descriptive phrases from Lisp function calls can produce respectable explanations if explanation generators ...

Most Artificial Intelligence (AI) work can be characterized as either ``high-level'' (e.g., logical, symbolic) or ``low-level'' (e.g., connectionist networks, behavior-based robotics). Each approach suffers from particular ...

Most Artificial Intelligence (AI) work can be characterized as either ``high-level'' (e.g., logical, symbolic) or ``low-level'' (e.g., connectionist networks, behavior-based robotics). Each approach suffers from particular ...

Programmability is a major challenge in spatial computing, anaggregate control problem found in domains such as sensor networks,swarm robotics, and modular robotics. We address this challenge witha model of a spatial ...

Byzantine quorum systems have been proposed that work properly even when up to f replicas fail arbitrarily.However, these systems are not so successful when confronted with Byzantine faulty clients. This paper presents ...

This paper proposes counter-measures that can be deployedas part of a replicated system to reduce the size ofW, and thus reduce the class of attacks to which the system is vulnerable. Obviously it will not be possible to ...

This paper describes the design, implementation, and evaluation of Cabernet, a system to deliver data to and from moving vehicles using open 802.11 (WiFi) access points encountered opportunistically during travel. Network ...

Caches are critical to performance, yet their behavior is hard to understand and model. In particular, prior work does not provide closed-form solutions of cache performance, i.e. simple expressions for the miss rate of a ...

Modern processors use high-performance cache replacement policies that outperform traditional alternatives like least-recently used (LRU). Unfortunately, current cache models use stack distances to predict LRU or its ...

The CADR machine, a revised version of the CONS machine, is a general-purpose, 32-bit microprogrammable processor which is the basis of the Lisp-machine system, a new computer system being developed by the Laboratory ...

(1)CHAR PLOT (see AI Memo 125) has been modified for TS. [It may be found on MS4 with the non-TS version]. The following changes should be noted: CRKBRK (now called PLTBRK in the non-TS CHAR PLOT), SUBPLT (which is ...

It appears that the development of machine vision may benefit from a detailed understanding of the imaging process. The reflectance map, showing scene radiance as a function of surface gradient, has proved to be helpful ...

The blocking probability of a network is a common measure of its performance. There exist means of quickly calculating the blocking probabilities of Banyan networks; however, because Banyan networks have no redundant ...

The recently developed rateless erasure codes are a near-optimal channel coding technique that guaranteeslow overhead and fast decoding. The underlying theory, and current implementations, of thesecodes assume that a network ...

Today's access point based wireless LANs (WLANs) are inefficient and unfair. For many traffic loads they provide far less total throughput than they should, and do a poor job allocating what throughput they do deliver. ...