Industrial Location Models 2: Weber, Palander, Hotelling, and Extensions within a New Framework

1986 ◽  
Vol 18 (3) ◽  
pp. 293-306 ◽  
Author(s):  
M Birkin ◽  
A G Wilson
Keyword(s):  
Theoretical Framework ◽  
Industrial Location ◽  
Location Model ◽  
Location Models ◽  
Special Cases ◽  
Alternative Approaches ◽  
Industrial Location Model ◽  
New Framework

In an earlier paper, the unified theoretical framework was applied to a broad range of alternative approaches to industrial location modelling. These explorations are used in this paper to construct a more general industrial location model from which many of the models can be derived as special cases.

A matrix-based industrial location model

1978 ◽  
Vol 1 (4) ◽  
pp. 395-398
Author(s):  
Seppo Eriksson ◽  
Esko Toiviainen
Keyword(s):  
Industrial Location ◽  
Location Model ◽  
Industrial Location Model

scholarly journals An Industrial Location Model based on Disaggregate Behavioral Models

1985 ◽  
Vol 16 ◽  
pp. 217-234
Author(s):  
Kazuaki MIYAMOTO ◽  
Hideo NAKAMURA ◽  
Shigeki YAGI
Keyword(s):  
Industrial Location ◽  
Location Model ◽  
Behavioral Models ◽  
Model Based ◽  
Industrial Location Model

scholarly journals INDUSTRIAL LOCATION MODEL IN METROPOLITAN AREAS

1983 ◽  
Vol 1983 (339) ◽  
pp. 155-165
Author(s):  
Kazuaki MIYAMOTO ◽  
Hideo NAKAMURA ◽  
Yoshitsugu HAYASHI
Keyword(s):  
Metropolitan Areas ◽  
Industrial Location ◽  
Location Model ◽  
Industrial Location Model

scholarly journals Modeling Belief in Dynamic Systems, Part II: Revision and Update

1999 ◽  
Vol 10 ◽  
pp. 117-167 ◽  
Author(s):  
N. Friedman ◽  
J. Y. Halpern
Keyword(s):  
Artificial Intelligence ◽  
Belief Revision ◽  
Dynamic Systems ◽  
Belief Change ◽  
Companion Paper ◽  
Minimal Change ◽  
Special Cases ◽  
Epistemic Modalities ◽  
Over Time ◽  
New Framework

The study of belief change has been an active area in philosophy and AI. In recent years two special cases of belief change, belief revision and belief update, have been studied in detail. In a companion paper (Friedman & Halpern, 1997), we introduce a new framework to model belief change. This framework combines temporal and epistemic modalities with a notion of plausibility, allowing us to examine the change of beliefs over time. In this paper, we show how belief revision and belief update can be captured in our framework. This allows us to compare the assumptions made by each method, and to better understand the principles underlying them. In particular, it shows that Katsuno and Mendelzon's notion of belief update (Katsuno & Mendelzon, 1991a) depends on several strong assumptions that may limit its applicability in artificial intelligence. Finally, our analysis allow us to identify a notion of minimal change that underlies a broad range of belief change operations including revision and update.

scholarly journals Quantum key distribution with correlated sources

2020 ◽  
Vol 6 (37) ◽  
pp. eaaz4487 ◽  
Author(s):  
Margarida Pereira ◽  
Go Kato ◽  
Akihiro Mizutani ◽  
Marcos Curty ◽  
Kiyoshi Tamaki
Keyword(s):  
Quantum Key Distribution ◽  
Key Distribution ◽  
The Other ◽  
Correlated Sources ◽  
Information Theoretic ◽  
Security Proofs ◽  
Information Theoretic Security ◽  
Special Cases ◽  
New Framework ◽  
General Method

In theory, quantum key distribution (QKD) offers information-theoretic security. In practice, however, it does not due to the discrepancies between the assumptions used in the security proofs and the behavior of the real apparatuses. Recent years have witnessed a tremendous effort to fill the gap, but the treatment of correlations among pulses has remained a major elusive problem. Here, we close this gap by introducing a simple yet general method to prove the security of QKD with arbitrarily long-range pulse correlations. Our method is compatible with those security proofs that accommodate all the other typical device imperfections, thus paving the way toward achieving implementation security in QKD with arbitrary flawed devices. Moreover, we introduce a new framework for security proofs, which we call the reference technique. This framework includes existing security proofs as special cases, and it can be widely applied to a number of QKD protocols.

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