In this paper, we explore different conceptualizations for representing neighborhoods in residential location choice models, and describe three alternative ways for constructing operational units to represent neighborhoods. In particular, we examine the possibility of using the census units to represent the hierarchical ‘fixed neighborhood’ definition, and the circular units and network bands t...

SHAMAN is a framework for hierarchical management of networks with SNMP that provides flexible and dynamic network management by permitting distribution of control and management functions over a hierarchical management structure. We have implemented a prototype software package that contains a SHAMAN Intermediate Manager (IM), a GUI for controlling the IM and for developing applications for it...

In this paper, we explore different conceptualizations to represent neighborhoods in residential location choice models, and describe three alternative ways for constructing operational units to represent neighborhoods. In particular, we examine the possibility of using the census units to represent the hierarchical ‘fixed neighborhood’ definition, and the circular units and network bands to re...

In this paper, we present an RCACM coordination model for mobile computing applications based on mobile agents. The key idea in RCACM is the role-based context-awareness hierarchical coordination model. In this model, local programmable reactive tuple space is introduced to address the contextaware coordination problems and hierarchical distributed tuples can make agents dynamically acquire inf...

This work targets the problem of odor source localization by multi-agent systems. A hierarchical cooperative control has been put forward to solve the problem of locating source of an odor by driving the agents in consensus when at least one agent obtains information about location of the source. Synthesis of the proposed controller has been carried out in a hierarchical manner of group decisio...

In hierarchical service networks, facilities at di erent levels provide di erent types of service. For example, in health care systems, general centers provide low-level services, such as primary health care, while specialized hospitals provide high-level services. Because of the demand congestion at service networks, the location of servers and their allocation of demand nodes can have a stron...

We propose a location-service to assist location-based routing protocols, realised through our Associativity-Based Clustering protocol. The main goal of our scheme, which employs hierarchical principles, is to minimize the control traffic associated with location-management. In location-based routing protocols, the control traffic is mainly due to location-updates, queries and responses. Our sc...

We present a real-time multiple human tracking system for a humanoid with a pair of microphones and a pair of cameras. The key idea for robust recognition and scalability of multi-modality is the hierarchical integration of multiple sensory information. First, sound direction by auditory localization module, speaker ID by spear identi cation module, face location, face ID, and object location b...

Discrete location theory is one of the dynamic areas in operations research. We present some mathematical models in this field concerning the hierarchical optimization. Main properties of the models and computational methods are reviewed.