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楼主 |
发表于 2008-3-18 13:10:54
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你好,这是我现在正在写着的程序,以上问题就在其中,请多指教6 E3 s9 d* D! l- V8 B/ d0 z
globals[- m1 I" r, W) z( ~
xmax) k# I! D3 T: A! [2 E' @( E
ymax
8 M2 a ?( k8 G" |) `global-reputation-list8 G. G) e0 ~7 `; ?3 F
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;;每一个turtle的全局声誉都存在此LIST中& M3 w% J$ x; d' d# K. d. n
credibility-list' B+ i# f, F. t' J0 P: L
;;每一个turtle的评价可信度" g R4 o2 y; U! z
honest-service
; v* `7 o# w( x! s$ w! H1 iunhonest-service+ v9 V9 S5 y' C+ V
oscillation
. E' G5 M8 x6 b3 R; Mrand-dynamic) w/ C7 ~" n) X8 a! c3 k
]
3 ^2 D3 ]) N1 d7 O
) L' R# ~, I8 t8 ?: U: pturtles-own[
: w/ d. m5 k; G% ntrade-record-all e2 n2 `, Z+ [: }! H# a3 q4 q
;;a list of lists,由trade-record-one组成
# Y5 v% q4 L0 Q7 I1 X* ytrade-record-one
@5 ^' A* T) B! P& M, e9 w;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录2 x- {$ e& y: f2 w
+ k6 l% ]/ H; l' O2 f
;;[对方turtle的编号,交易总次数,交易总金额,[本次交易的时间,交易金额,得到的评价,给出的评价,评价时间,此次交易后相对于对方turtle的局部声誉]]+ ~1 s6 }% `* H
trade-record-current;;list,trade-record-one中的这个list,作为暂存用,[本次交易的时间,交易金额,得到的评价,给出的评价,评价时间,此次交易后相对于对方turtle的局部声誉]
9 F3 C7 [+ ^& Z( tcredibility-receive ;;list,他每个turtle还需要有一个存储其他turtle对其评价质量进行评价的list( Y9 O" d. j& V9 F7 L3 y
neighbor-total9 m* ]2 B6 c4 ]3 ~# U
;;记录该turtle的邻居节点的数目
t0 u5 h& a/ a& r) ~trade-time
( ~& H0 Z F. t" y* B9 t6 ` Q;;当前发生交易的turtle的交易时间
9 e( }( w" A' K0 O7 ]% E3 rappraise-give4 _. H1 I: c' s$ Q* v, `7 [
;;当前发生交易时给出的评价
. J" N) C& {( S k7 Gappraise-receive- m% P8 t+ p6 b7 E# L4 p
;;当前发生交易时收到的评价
7 t" c* s/ y* H8 V* rappraise-time
) V0 r, L8 o( g; o/ y;;当前发生交易时的评价时间
1 d4 G1 H7 z* w! {local-reputation-now;;此次交易后相对于对方turtle的局部声誉( `$ h" Q/ t3 D/ f: E4 |1 o
trade-times-total
5 P" T. O( S9 y" n# \$ F+ @;;与当前turtle的交易总次数8 W) ]# L; C# @5 \
trade-money-total
4 i4 s4 [# L* m; V* S+ J;;与当前turtle的交易总金额
; T6 O* V+ y. ~' w8 t9 ~/ Zlocal-reputation( @3 T1 B2 v* ^& v' g
global-reputation- c1 E/ c' o& b c; `3 \. t% c- Q
credibility/ C( g# K& {6 o. r) z) Y
;;评价可信度,每次交易后都需要更新
4 r6 K; G) g$ y( Qcredibility-all5 m- x9 z( F" w3 Z/ a
;;a list of lists,由credibility-one组成。[[1对j的评价质量的评价][2对j的评价质量的评价]……[i对j的评价质量的评价]……],其中一共有people项,根据
9 k" B& ^$ |" [ ]* Y/ k7 X# c, _1 f9 @# r1 f
;;turtle的编号对号入座,对于其自身的编号,在计算用到的时候再进行剔减,初始值均为0.5
3 Y. r0 Z5 K8 o- P5 Zcredibility-one
* g/ Z) A" o8 T% j# r, J1 u;;a list [i对j给1的评价的质量评价,i对j给2的评价的质量评价……],其中一共有people项
! |4 `1 j# D) {* eglobal-proportion
2 s% o* q+ @3 f, tcustomer3 ~: A: U. I5 W( G) Z; \
customer-no
! V8 z T5 S3 C7 v$ Itrust-ok/ [+ P2 n5 y' Z& M
trade-record-one-len;;trade-record-one的长度5 I' |. c- k; z5 o2 o Z1 r$ o
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6 f3 [4 e& K0 k5 |) c: X1 e;;setup procedure; ] ^2 [+ z! L5 V# B
/ Z; n( ?' U- z4 [: o$ B: p9 Uto setup' u5 d6 y6 [1 u$ c
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ca
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9 C' N2 ^( P/ `' r2 Y2 |# Minitialize-settings
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: W1 Q: C! u w8 Ccrt people [setup-turtles]0 c, v$ x, x& k( [* S- z
9 G6 J: ?& E+ y( i7 [/ \0 breset-timer$ f5 c9 Q0 q3 I( N; Z6 A: w2 U8 \
% Y/ D* w1 N! ^" I6 t0 Dpoll-class0 B$ ~9 P# i/ p1 r
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setup-plots; `9 ^% G* N/ W: A
0 v3 u$ s/ u8 t6 C% Gdo-plots
4 c6 W" _; z3 H$ w0 jend. E: G# J$ @3 e. x3 D9 z
' r7 ^" G2 |* `" ?to initialize-settings
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set global-reputation-list []
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set credibility-list n-values people [0.5]6 R! s' @; j: a- k5 j: e* U) P
$ f- S4 O% h7 t3 F( @1 {
set honest-service 03 c' K& j( P! ^
! T; k: ]3 s* C! D% p: Q
set unhonest-service 0
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set oscillation 0% p+ |. `# q: }( M" o
4 K/ I9 n/ D: z9 N" J3 ~set rand-dynamic 0
( f( `4 V7 ~. aend
) i7 a7 O8 K+ Y& O {" @& h, I$ p" v; O+ e8 E2 `
to setup-turtles y: w$ C0 f( l
set shape "person"% E* z# x0 V% j9 ^$ i
setxy random-xcor random-ycor
+ D- { O) E, E jset trade-record-one []
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set trade-record-all n-values people [(list (? + 1) 0 0)] # `5 w" w' l# I& M/ u$ {0 `
! k, o4 t! n7 B4 J
set trade-record-current []
4 V. ~7 z" s, Y* Z$ uset credibility-receive []: S3 F) s) r' s, y' o( m) Z: Q! v
set local-reputation 0.5 Z" H: ~# i( ~1 x2 z
set neighbor-total 0
4 x* r$ o0 M' u8 S6 L; Oset trade-times-total 0
- z+ \! K* P6 n! R: d7 Zset trade-money-total 0
0 U4 i) |( X* \% Y5 V Cset customer nobody
6 g* Q) m1 i; X. C9 g( b/ nset credibility-all n-values people [creat-credibility]& F: K/ d3 X1 ~
set credibility n-values people [-1]
. Z$ R. D' Y2 m! r4 o% Uget-color; k5 H3 d, h/ [( h. S, ^
0 l+ A* b5 L% }& i' t( b. @! R
end
& g" t/ @1 e8 E0 {( M: }
" [8 @, F- ~* g U) d) Fto-report creat-credibility8 S$ S3 t7 C/ U1 t" S2 s" L
report n-values people [0.5], s1 z, L1 k) y4 C% s" T5 ~
end
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to setup-plots
% m) R/ ]1 U, X/ ]7 t: v2 H9 d8 f. V3 ^# N
set xmax 30
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set ymax 1.0! F( D& z8 h4 l0 K2 ?( B% i& k, y
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clear-all-plots) Z: C7 l8 y# w' i
4 \8 U' v U! w% \8 [setup-plot1
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setup-plot2; v. Z% W! z; O# ]% W
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setup-plot36 H5 h% A6 l2 x* c1 [1 ?, V
end3 \0 D+ T# u& m7 I' q! G A
) P1 e; n5 l: O, q& O7 V( w
;;run time procedures
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to go
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) Z4 @ r, u5 \: V oask turtles [do-business]3 N4 R8 k6 ]) B7 z3 h
end
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to do-business
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3 p2 w- g# _2 I" V3 o/ e
/ a2 H7 c. V+ u. y _rt random 360
% }+ v! W. K6 W3 d: e# y) F @, T' @" b: m" k& T! n9 e
fd 1
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ifelse(other turtles-here != nobody)[
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. B7 c, B) X6 vset customer one-of other turtles-here
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;; set [customer] of customer myself+ I' K5 ]4 B6 P$ h3 O) v
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set [trade-record-one] of self item (([who] of customer) - 1)
/ h9 {* t: u m5 J[trade-record-all]of self) O1 u. T# h R$ L" o1 I
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self. `) n0 a' _ K/ ~
! Z1 T; G/ @" q0 Mset [trade-record-one] of customer item (([who] of self) - 1)
% v3 a4 I2 @( O& U[trade-record-all]of customer8 e! _. d ^7 N" O* d0 }
7 B0 b2 ^+ d1 i* kset [trade-record-one-len] of self length [trade-record-one] of self
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set trade-record-current( list (timer) (random money-upper-limit)). t ]; V) `. z/ t4 Z6 L+ x
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ask self [do-trust]
% y2 R; Y- k9 R4 N;;先求i对j的信任度( H. J$ F, P+ V, Q6 t
+ b/ g& K- C# Z, U6 j+ J+ ~; bif ([trust-ok] of self)
! |6 F8 o; S5 Y- {" Y$ S;;根据i对j的信任度来决定是否与j进行交易[
5 ^ p: d7 k' s5 m, `) i1 n9 Z( t* Bask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
% ~& X( Y* L& \; `
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do-trade4 F+ P) X" D0 W% D
. q0 a8 `4 ?6 K+ L6 ~update-credibility-ijl' J+ R% B: w) E' K: b9 J4 V
) c3 L2 M0 h1 \' H* rupdate-credibility-list0 \( k z' U8 L; q' s; A, E9 l) c
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update-global-reputation-list( J9 O- i7 `- J" |, p3 D
, K& G0 K' Y, D4 E. b5 }! epoll-class
6 m7 {8 U' z, @/ c
# p( w6 \& N1 y+ Rget-color" K% C; A9 L6 u7 ]! W- ^' ?. C
5 r6 O6 O9 i5 l$ C4 w1 c; @; y]]3 i6 d" R- [$ F7 a6 q- x. R M
! g E0 l% Z# t! [# ^( r$ Y& s _
;;如果所得的信任度满足条件,则进行交易
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$ i' k: m/ x- w[
0 n7 C' k+ |1 p/ ` b
+ @. Y. ?3 w3 Vrt random 360
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# s; F/ K6 ]5 n# J; {5 r5 X; N* m8 I) F8 D( {" y
]
5 Q( w7 U3 W+ x3 }6 z1 B' v
, @6 ^1 {5 r+ i/ mend
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2 r9 v3 `7 b5 R- d0 rto do-trust 3 Z( w' M+ K& S
set trust-ok False
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4 A$ m) @+ e5 {, O) u, llet max-trade-times 0 d4 V% K) i O7 T. X
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]5 L8 W3 n/ f! Y
let max-trade-money 04 D5 ?) S; x- }1 z, ~
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]; v" z) d9 C" \, i) M. P! R' g+ r8 W
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
# F, \% U0 ]3 |& Q/ X" O
* ?# s+ @7 p; k( X3 @, J( m; K! K: k! _1 @
get-global-proportion
0 H6 T& \! Y- D1 H7 `) _" M% r1 @let trust-value9 z( g# j% w/ U
local-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
/ X+ G3 X+ \0 P/ Eif(trust-value > trade-trust-value)8 @+ A, D% H9 P- c
[set trust-ok true]) ]5 X! ?. k- T
end9 `+ A& E( @& V: a+ h
u, p7 b: n* E2 M ~. P( v+ u
to get-global-proportion
* z9 l0 o" q: V! Bifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)( {) |4 R' T, u4 k+ M9 h
[set global-proportion 0]8 o* f5 x; x/ m A% a9 j, y0 W8 R
[let i 0( P3 v9 d, L( H, c# n. V
let sum-money 0
. h4 w5 D$ r U- {/ w% dwhile[ i < people]
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& C$ S1 B1 R# i& W. eif( length (item i
8 N& W1 O" ?7 m1 N[trade-record-all] of customer) > 3 )9 B9 u* D1 F$ V$ b% {- b4 `
[
! ]) c# e: M9 }7 n) j; Wset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
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let j 0* {4 l* l6 B7 D' ]2 j+ R: [
let note 0- m3 X: H( A# a
while[ j < people]0 I% O8 _ I; C) c5 k5 E, w
[3 d1 O6 e* k. w7 I+ n
if( length (item i" q0 L! k$ a# ^- ]- @, I6 D
[trade-record-all] of customer) > 3 )9 R9 a& W0 d: ]! r/ ]8 k
[
5 u) i9 t' U% ^& l7 vifelse(item ([who]of myself - 1) [credibility] of turtle j != -1) O3 f! I; X6 T
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
7 d" n2 _- G0 r A9 n0 O[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]9 W0 H0 H# G, e( F0 N
]- T. [3 y/ u: K( _- e7 ]6 o
], I. l4 i M9 | n
set global-proportion note
6 V( q9 H' l- t+ a4 l]& r- S% ]' W# l9 U* _+ ?
end; ]( o7 E L7 s2 f6 |2 G
! U8 p/ h: D- E& V9 F! J2 P9 Yto do-trade
/ b% I: g* b2 P& _1 p! o' R; J;;这个过程实际上是给双方作出评价的过程4 q2 L+ R$ f, n8 E; {# |/ }
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价 R- t& s% y7 K& F, `4 U
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价* j) p, r! h5 w. f6 a- B8 S; l
set trade-record-current lput(timer) trade-record-current
8 w" w% { M# S* P9 G7 R* P;;评价时间
+ R7 V. l$ ]) Yask myself [% T- \* A# T9 V6 T3 G
update-local-reputation
& |: ~9 y' O$ P# p0 jset trade-record-current lput([local-reputation] of myself) trade-record-current
4 E' P2 ^8 p; W3 M( P$ S]
$ X4 e4 M. W5 w& M5 V8 O3 bset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself$ R8 A V7 a0 k4 f" r1 N
;;将此次交易的记录加入到trade-record-one中6 d0 F- X* X; L" J: ^
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)3 T9 {/ b5 d- { C" j
let note (item 2 trade-record-current )" v! M9 {, E; Y; J+ U* q% o9 ^, T
set trade-record-current5 J$ J% a2 |; V9 L* h% G' d! A: K3 r
(replace-item 2 trade-record-current (item 3 trade-record-current))* n5 b! a9 A* ^, Y
set trade-record-current; Z7 [; \# z* C0 K; T5 P5 ]9 \
(replace-item 3 trade-record-current note)
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4 c- R# C# c$ H+ A! {ask customer [! q; {- O. j) g5 {, ^' v
update-local-reputation
% h* C8 x! m* f5 X+ p; G" Hset trade-record-current( C% D+ a0 \9 W# q4 Q
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ( H {& \" D" M, J% p- Q
]9 \! v5 f3 n- s6 z
& E! Z; Q( \% p6 ^ r# R5 g( ^
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set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
* d8 V% A5 F" x3 i
4 I" C! F6 Y& g, D/ {set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))( `- w8 \. t; h- s# }7 v, k
;;将此次交易的记录加入到customer的trade-record-all中
, w8 ?& e, x. g8 b; N7 i5 Kend. y. r# f4 E6 ]$ v# Z+ X" X+ W' u
/ x$ v# N$ c5 k- ]; ~! w$ T! o# |to update-local-reputation- S/ K) Q: i+ f: M/ h
set [trade-record-one-len] of myself length [trade-record-one] of myself
4 [! {, [: O, q& B- I
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' T7 D+ {0 A) v+ F. D;;if [trade-record-one-len] of myself > 3
& Q; O* P$ b' q! ?' z0 Gupdate-neighbor-total
+ x" i' {9 _+ N+ J;;更新邻居节点的数目,在此进行/ R4 [5 z' c$ e2 G; a9 t! A% h
let i 3
% n, W; g7 o8 O6 N' f0 qlet sum-time 0+ T. z: Q" N3 C
while[i < [trade-record-one-len] of myself]! }5 y( z4 ], @. `) O
[5 F- j F5 d. d0 T3 k5 z; w( A
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
* [9 E1 |0 \3 c2 p) I5 tset i/ J& X2 o# p {$ ~, Y' D
( i + 1)3 t2 }8 D1 I% @0 M( [
]' Y4 \1 Z: j1 {; u/ p$ E/ y) @
let j 39 M! J# v3 ]( E u* b: D9 b
let sum-money 0; {2 q" O: R. [3 l/ \" x9 @+ x
while[j < [trade-record-one-len] of myself]
6 ?- w, ~1 e" \ V; Z$ z# O[4 M, G2 k; s8 C
set sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)! H9 x* @" e- E2 H1 m
set j: D! {+ |& m; t
( j + 1)
O2 L) b# U$ W! F6 l- v# ?]
. A/ q* D* H) y% N+ U% b1 m9 X, H3 Tlet k 3! A0 Q6 T8 e6 Q0 A5 T$ A
let power 08 ? M; g! g! n# p \0 I
let local 0% s/ T) Q0 N5 \" L. c# J
while [k <[trade-record-one-len] of myself]
6 n3 C9 t8 r! k3 D& T6 y/ R[
5 A( [2 n' J; y, Cset local (local + (item 0 (item k [trade-record-one] of myself)) * (item 1 (item k [trade-record-one] of myself)) * (item 2 (item k [trade-record-one] of myself)) / sum-time / sum-money) " N( @& F3 @0 |: l' b. ~, m" g4 b
set k (k + 1)
& c3 E; _( J& }# S7 n+ c]
# \ J5 h5 Q$ P& R( F( U [; eset [local-reputation] of myself (local)" b( m: U% x" W) S3 {0 s( O
end" q$ n% E2 a0 M
8 [5 {$ @7 ]$ h6 R' R; K `to update-neighbor-total! t5 g7 P! z+ T7 x$ [- s, S
5 a* P: O! A1 y# [+ g2 c) aif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]- ], _9 k& L+ J/ L
6 l4 m% q! ^% L2 q$ a$ k
h% \/ F; ?" Q& I1 k+ }! u* y3 C0 P, o
end
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1 t/ @, _! e4 ]/ d/ |0 T0 Sto update-credibility-ijl " @" k0 q: F( P5 b6 E+ \: h
9 f( j9 l* G; i# D0 W2 w. ?7 O;;思路:每一次,当一个turtle发和另一个turtle成功发生交易作出了评价之后,就去搜索本次交易对象的邻居节点,对这些邻居节点的评价质量作出评价。0 g3 N" N+ K b" M4 t K
let l 0
. s0 Y0 R( N" [2 g; X# F, ^; Swhile[ l < people ]4 K7 C, O" B" I* q
;;对j的邻居节点的trade-record进行扫描,以对j的邻居节点的评价质量进行评价3 t. F# F" G1 D7 s/ j
[) P* [7 t" k9 S) }% j' R
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)% M% B5 ^# \/ C$ k
if (trade-record-one-j-l-len > 3)7 {+ H' @6 @, v3 Y$ v7 m# ~
[let trade-record-one-j-l item l ([trade-record-all] of customer);;暂存那个评价质量正在被评价的turtle j的与l的trade-record-one
3 h8 K+ g" O4 E0 \4 a% a! ylet i 3, H# K- V, Y8 n1 I5 O' G
let sum-time 0
4 R- L! e5 b2 q' J- k4 mwhile[i < trade-record-one-len]) G2 \+ I( k! b. h3 C6 f+ x
[. C- u1 E. E6 g& ~ L
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ). T9 p8 d% A+ p+ X6 v0 T
set i4 r6 Q0 P( N8 \" R
( i + 1)( _ B5 G, e( X1 y c- J K# k
]
* y. ~8 U9 `- c" A' \let credibility-i-j-l 0
A/ _: n* M3 Q1 @. C; h+ G+ u; w9 p( _;;i评价(j对jl的评价)
4 x2 A Y& F( V$ t5 Xlet j 3$ r; g Y1 ]7 m, b4 I* k( w
let k 4- T; u: A; J" ^. M5 S4 P3 U
while[j < trade-record-one-len]! @* D; }' q( y' s( [
[
# O! X! t" P+ P t* Qwhile [((item 4(item j [trade-record-one] of myself)) - item 4(item k trade-record-one-j-l)) > 0][set k (k + 1)];;首先要寻找在i第k次给l评价的这一时刻,l相对于j的局部声誉
0 t$ u; L' U" y' G5 K& |0 `set credibility-i-j-l ( credibility-i-j-l + (item 4(item j [trade-record-one] of myself)) * (1 - abs ((item 3(item j [trade-record-one] of myself)) - item 5 (item k trade-record-one-j-l) ) )/ sum-time)4 S4 Z/ L) ?/ \$ Q" r# O5 o9 ]
set j
v! R' {* A/ a0 x6 v( j + 1)$ H1 A% z+ U; {) z! T& d0 W
]% x( b& J( f1 a3 Z( Q1 I0 x
set [credibility-all] of turtle l (replace-item ([who] of myself - 1)([credibility-all] of turtle l)(replace-item ([who] of customer - 1) (item ([who] of myself - 1) [credibility-all] of turtle l) credibility-i-j-l )). C+ p4 v4 v9 l, V3 M
u2 E6 O* w x5 H f" q5 h) |
) k: U8 @1 V4 d/ N8 U# Flet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))- i" h8 ]7 ~6 h
;;及时更新i对l的评价质量的评价( o; N1 p! @4 c. |/ J2 r( p* H
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ], Q, j$ i9 y4 T y
set l (l + 1)% L- q8 C. s! X9 A- I) S8 X7 R
]* x# W3 h' ~/ I, e" @2 d! Q( N, |
end$ f q+ z8 @( W% Z
! \. G9 e5 P& s; @9 fto update-credibility-list
. F( @ l3 ~& ?1 Olet i 0
, o; g9 }) G } h' ]1 n! a9 iwhile[i < people]' e4 f) |5 y* m% n. f# ]
[5 ]! f+ W: e- E: ]% C& F& q3 D' @
let j 0( c4 _5 `0 R j# j
let note 0$ z& ?' t2 k7 ?* c- u) \4 M _
let k 09 ]3 z( C/ O# u& ^( W
;;计作出过评价的邻居节点的数目5 X0 Q) G' y, `6 E: ?
while[j < people]
4 `9 u9 O! h- a% B* _[
, D' K% }: j* [" G( g) Nif (item j( [credibility] of turtle (i + 1)) != -1)
0 f& f1 X/ P/ X7 o! C;;判断是否给本turtle的评价质量做出过评价的节点- e2 q3 ?* ^& x
[set note (note + item j ([credibility]of turtle (i + 1)))8 C: V3 D5 s! K& I' d
;;*(exp (-(people - 2)))/(people - 2))]$ b+ ^2 F- U9 P3 W
set k (k + 1)3 V$ r# B; R! N% b; R( F) ?( p
]
4 f: K$ K, P4 `; n, Qset j (j + 1), `8 X6 e- w, {9 N; y/ a' _6 i
]+ U6 p: ^* `+ B" o9 C4 ]2 X4 |2 ~
set note (note *(exp (- (1 / k)))/ k)0 ]% Q2 h* p/ N6 H: B: B
set credibility-list (replace-item i credibility-list note)
8 y5 L' W, O, Y3 M- G1 y! Zset i (i + 1)- p1 N1 [+ O7 u0 O+ m1 f2 c; }
]
& A) d: ^+ [) b# n3 s: Vend
+ x; X% q$ y) p1 d) g
, p1 D$ _; @* m# p# \to update-global-reputation-list
! J" L9 S y' v" O) nlet j 0- x* P2 o; u6 \
while[j < people]! _. v# t5 p/ [
[% y2 @# c1 R! d/ r O6 u2 d- F$ g0 l
let new 0: a$ v( n3 H( q4 }& o
;;暂存新的一个全局声誉
0 N0 |0 C" U0 d: v4 Tlet i 0
; j5 v# g, h/ A: Slet sum-money 0
& d/ U7 Y( M% u6 k+ Z' |! X: Xlet credibility-money 0
2 [* y6 c! @& }# U9 }( {while [i < people]7 V2 y# y. ~! a& E5 r% C, ^
[ r! k+ q5 Y5 D5 {
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
# W5 L/ p* O8 v6 l0 w" zset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
& r4 G( j; P" Z& \8 G2 Mset i (i + 1)
1 }) p5 u1 M' U. p7 w]
; w! B3 Y' B: r- k |6 t. v4 jlet k 0$ w+ O5 G9 b H: c W
let new1 0
# A) X( h; u" d& e# u# v7 D0 \while [k < people]- [; u3 k# n( |
[
% |* S; M4 ~! Q. Aset new1 (new1 + (item k credibility-list)* item 2(item k [trade-record-all] of turtle (j + 1))* (item 5 (last (item k [trade-record-all] of turtle(j + 1)))) / credibility-money)2 p% V1 O0 V- A9 c
set k (k + 1)
/ q/ E/ ]% S9 C]
2 @) ~1 F5 D6 E$ r5 xset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
1 W) _. X& f& d0 k$ ~set global-reputation-list (replace-item j global-reputation-list new)" |+ l9 f# ?4 ~3 M/ X. W8 ~) `
set j (j + 1)
- Z: m! X3 I, K- {! k]' z1 `+ k! [- s5 q
end
) {, \3 q% ?$ N2 u5 v ?2 t, E5 q$ ?5 g, i/ n E9 K
) ^0 B/ e, h& W! ?! Z0 J6 _
D% Y$ _2 z/ U# hto get-color
" o& l- Z- M, j
5 ~7 g, F' p2 U8 Y& ]* {. pset color blue8 ?4 B5 r, F# C( \2 N
end! E9 P: Q( D0 I9 k/ Y* \% `
" H; s; v3 y: c( {/ |to poll-class
+ p! X5 p; A/ @& b; b/ W. ]end9 s+ N$ W; ]; @* }; }+ R
- Z- y3 x3 k# }1 {/ M) G& f. {to setup-plot1
* c7 i/ \7 z* E3 X2 k6 D' f# A. C9 H. S# l
set-current-plot "Trends-of-Local-reputation"
: s- S* A( I( r, G" w+ b
0 l+ P; B& F: nset-plot-x-range 0 xmax, F: z% W, A$ v+ I1 E+ G# B# d
" g7 a. f) R1 `" v8 o1 k
set-plot-y-range 0.0 ymax2 R3 M, y) C, `. `# f9 s
end4 x3 r9 _: Z" A
9 r ^! F) I; _, F* Y5 ~# I1 V& vto setup-plot2
2 f6 j: p; F: V1 P; |( y0 {' `4 U# t+ i. Y3 [! N
set-current-plot "Trends-of-global-reputation"
* G; ]$ u, ~9 W
U% Y3 g7 R& ~2 |' u8 `set-plot-x-range 0 xmax
; ^: |/ p! P8 k/ ]! Y0 |, w5 L# h0 R' k2 Z1 [* K
set-plot-y-range 0.0 ymax
* M, e! j0 k: n: C. x& Send
8 n3 U& ]* n- o9 ?8 ^9 x) I& G
to setup-plot3# c( x+ i7 I. c7 P _. @9 m
5 l1 J9 D3 M; ~7 F$ kset-current-plot "Trends-of-credibility"2 G7 S7 z, n5 P# C# {3 J* @8 \3 e8 M
! D; P+ s @: n- L( Eset-plot-x-range 0 xmax* E; t) ]9 M5 [4 V; o. S
( p' g2 D1 ~2 r8 C! |# z
set-plot-y-range 0.0 ymax
: B; ~) j2 D+ k, U3 B8 M1 ^end
X9 v- |4 m' \
$ P5 ^9 E! y) m% V8 Y0 cto do-plots
9 M! c; V0 O% j) V- {* zset-current-plot "Trends-of-Local-reputation"1 E: v1 X$ _' m ~
set-current-plot-pen "Honest service"" \9 x) t! X% o+ g
end
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* j [! d8 S' t1 J. }0 c6 X[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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