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References and Notes  

1.  Worm nervous system wiring data is as reported in: Cherniak, C. (1994)  Component placement optimization in the brain.  Journal of Neuroscience 14: 2418-2427 (1994). ( See also: Network Optimization in the Brain: Cerebral Cortex Layout [II: 2/2000] NIMH Grant Application, UMIACS Tech Report CS-TR-4525 . www.cs.umd.edu/Library/TRs/ )   

2.  Diagram adapted with revisions from:  Felleman, D., and Van Essen, D. (1991) Distributed hierarchical processing in the primate cerebral cortex. Cerebral Cortex 1: 1-47. (Fig. 2, p. 4);  Van Essen, D., et al (1990) Modular and hierarchical organization of extrastriate visual cortex in the macaque monkey. Cold Spring Harbor Symposia on Quantitative Biology LV: 679-696 (Fig. 6, p. 689).  Areas MIP and MDP are included in PO.  

3.  Connections based upon:  Scannell, J. (1997)  Determining cortical landscapes. Nature 386: 452. www.psychology.ncl.ac.uk/jack/gyri.html;  from Young, M. (1993)  The organization of neural systems in the primate cerebral cortex.  Proceedings of the Royal Society, B 252: 13-18.   Adjacencies from Felleman and Van Essen (1991) (see note 2).  Adjacencies do not include "diagonals", where only corners of two areas are contiguous (e.g., V3a and LIP in Fig. 2); similarly for all analyses below.  (Because of incomplete information, the edgering has a gap at PS, 29, 30.)  

4.  Diagram based upon: Scannell, J., Blakemore, C., and Young, M. (1995) Analysis of connectivity in the cat cerebral cortex. Journal of Neuroscience 15: 1463-1483.  (Fig. 1, p. 1466; with corrections.)  Area SVA is included in 17, ALG in 19; DP in EPp & AI, V in VP & AII, SSF in EPp; a number of boundary indeterminacies remain unresolved.  

5. Connections and adjacencies based upon Scannell et al (1995) (see note 4). Adjacencies do not include "diagonals", where only corners of two areas are contiguous.  

6.  Connection matrix of AMI49:  Benchmark suite LayoutSynth92 1992 International Workshop on Layout Synthesis, North Carolina.   www.cbl.ncsu.edu/pub/Benchmark_dirs/LayoutSynth92/bench90.tar.Z

7.  Diagram based upon:  Esbensen, H., and Kuh, E.  A performance-driven IC/MCM placement algorithm featuring explicit design space exploration.  ACM Trans. Design Automation of Electronic Systems, vol. 2, no. 1 (January 1997), p. 79, Figure 9(b).  info.acm.org/todaes/V2N1/L134/paper.pdf  

8. Diagram based upon:  Hong, X., Huang, G., Cai, Y., Dong, S., Cheng, C., and Gu, J.  Corner block list: An effective and efficient topological representation of non-slicing floorplan.  Int. Conf. Computer-Aided Design, Nov.2000, pp. 8-12.   www.cse.ucsc.edu/research/surf/GSRC/Papers/01a_2.pdf

9.  Diagram based upon:  Lin, J.-M. and Chang, Y.-W.  TCG: A transitive closure graph based representation for non-slicing floorplans.  In Proc. of ACM/IEEE Design Automation Conference (DAC-2001), Las Vegas, NV, June 2001.  Figure 6 (2). http://cc.ee.ntu.edu.tw/~ywchang/Papers/tcg01.ps  

10. State-to-State Commodity Flows:  Commodity Flow Survey (1997).  Bureau of Transportation Statistics, U.S. Department of Transportation. www.bts.gov/ntda/cfs/docs/cf97odv.html  

11.  International Trade by Commodity Statistics (1999).  Organisation for Economic Co-operation and Development.   www.oecd.org/xls/M00017000/M00017616.xls  
(See also: Richardson, L.  Statistics of Deadly Quarrels  (Boxwood Press, Pittsburgh, 1960)) ch. 5.4.)  

This work was supported by NIMH grant MH49867.  NCI generously made available supercomputers at their Advanced Biomedical Computing Center.  We thank Richard Kissh for parallel supercomputer software engineering.  We are also grateful for assistance of Eric Celarier, Jarrett Rosenberg, Thomas Schaefer, and Corey Washington.  

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Copyright Christopher Cherniak (2002)
Last Modified 11/19/2002