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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 a0 v& z$ b! d" {8 X
globals[
4 y+ H/ i& t$ ^% Lxmax
" ]# D8 i$ X* g" _) O9 c1 f6 O2 Fymax
( v4 g% Z# H, X4 O/ Sglobal-reputation-list2 G( k' ^* S, ?) ?7 V8 A* @
8 {" S" a6 ]# n8 x- N
;;每一个turtle的全局声誉都存在此LIST中0 x" {5 E( u# y1 D7 o; H
credibility-list
5 d, Z7 k/ _7 a6 T5 j, @* Q* _- _;;每一个turtle的评价可信度/ \9 @; T2 E" T$ a! M, c
honest-service3 S+ |7 C! D! u
unhonest-service) Q1 c6 ^9 \1 z( B1 S
oscillation
' k7 U4 G9 n- t6 u8 \rand-dynamic2 z; ?( `) b: h8 c
]$ E0 m9 I7 V* U( P: Q( k; @# E
* i9 Z: w6 D0 ~$ Oturtles-own[
# c( F: @* h5 Y) w, Utrade-record-all
7 m5 A, R2 x% z;;a list of lists,由trade-record-one组成
+ e4 d) `5 `7 p. h/ }trade-record-one, ]; H0 y n: W5 d, {6 C
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
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;;[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]]- w! V& v% Z8 w
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]1 o j5 J& H. c
credibility-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list4 i" v& z$ x3 @" n: ^
neighbor-total* q+ @6 h) P, M- G
;;记录该turtle的邻居节点的数目; S' d3 `' h1 k3 M& N- \
trade-time
+ S, ~6 P5 `4 _5 ^' q" @;;当前发生交易的turtle的交易时间* y5 i: w$ }! R% U/ H8 e5 H2 a
appraise-give
3 C2 e e/ _+ G+ B;;当前发生交易时给出的评价( |$ e) F9 g8 D1 {
appraise-receive
% r/ A. ]6 w( I q* u;;当前发生交易时收到的评价
& q8 ] O; i! N, l7 k) w- S' s0 Vappraise-time; e8 X$ P( r8 t2 [* p0 D# u
;;当前发生交易时的评价时间
/ R% ?; w- t( ?$ j/ wlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
5 s$ N9 [( j. n! g; ftrade-times-total6 t- |0 q2 }) C2 [9 Z4 h0 a! @
;;与当前turtle的交易总次数' R# C7 l% A1 P2 w# [8 K& h8 K
trade-money-total4 n1 V/ X: G. k9 J5 K* o
;;与当前turtle的交易总金额6 Q) j$ X2 ], o3 W2 v& b, m' N
local-reputation, R. [, K- p+ i ~5 W0 J
global-reputation
: G# V S6 i c& d8 _credibility
' d) x/ q3 {, @" Z/ M" N;;评价可信度,每次交易后都需要更新2 P* O4 p" o, K" ~& }7 h
credibility-all
+ c+ e% O. Q; w. V R4 X;;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5 u0 C; F M) u+ R) }( U) v( t
/ z; c: `( i) \
;;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! ^5 k5 Y! ^# ]( y9 c- Y
credibility-one
. S$ A- Q" o9 u8 D;;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
/ L3 L5 s' e' K9 j. O' D4 n& Fglobal-proportion
/ N4 h3 K% B& {0 Z$ f4 ?customer
2 p* k9 a) v9 f, N3 Q' Gcustomer-no
6 }6 i7 R( Z- u3 a- o1 Htrust-ok9 j% G/ Q3 w) S8 Y& @2 a1 _
trade-record-one-len;;trade-record-one的长度
8 ]; t& Y. v, t) T]
* X4 v9 L1 `! f' D* m Z6 I) W* a& T$ D* E
;;setup procedure0 H4 C+ P& {$ C% z( P; c' s
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to setup% s! ~9 i) h) o9 e/ T/ Q3 w
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ca% b7 a: L( D o2 c/ s6 G: e3 m
8 I( ?; a. a! g2 w5 tinitialize-settings9 E( P6 Z6 [/ t- [8 X7 q- ]5 M4 a
$ \6 d4 p8 p y
crt people [setup-turtles]
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! ~3 q* W# X6 m1 Qreset-timer" F9 g3 E6 \4 v h" b
b2 @9 P. w7 D" xpoll-class
: l) F4 ?% r- |; K# i9 l9 I- j6 N1 y: V0 N5 Q1 S$ t, Q' p N" F) s
setup-plots
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do-plots! h3 J) k5 q3 h' V: D
end
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to initialize-settings
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1 _' k' q8 d* i' m2 ~set global-reputation-list [] ^/ F( Y# i: p9 c6 P5 F- ?$ b
4 C8 u/ s: w/ |. Iset credibility-list n-values people [0.5]
- n' @) t: S1 v6 K" g7 h
1 N0 y' Q u: Kset honest-service 0( C; i/ w% L3 m: K
7 ~' W$ T2 o. bset unhonest-service 0+ [4 v+ C z, R* i+ d% _! T
/ Q. N4 Q; \( s' _6 `set oscillation 0- i0 }! m& `( m9 F
: |4 S( A2 B' s
set rand-dynamic 0& P5 B8 X( O6 L7 M, v+ O
end$ A2 j- F- D! z" l, p! m7 v: h6 \
6 E# ~/ |4 k6 x* d" K* m* Wto setup-turtles 0 a2 D5 Y4 w' r" b5 `8 |& ~
set shape "person"' l6 @% N5 T2 I: T# X! s
setxy random-xcor random-ycor% b2 h7 R4 \. \4 q! s2 @
set trade-record-one []
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set trade-record-all n-values people [(list (? + 1) 0 0)] 1 D/ l+ h9 i g# n2 o8 B
: o ^% U# Z4 c1 z- t2 r \set trade-record-current []$ d* W0 E: U2 R- \9 P
set credibility-receive [] ?+ Q- i' k* G8 N5 L' \) {" [
set local-reputation 0.5
- V$ u1 u0 N1 X/ w, W1 r1 V! B! Cset neighbor-total 0
) A+ {% [* D& F8 t7 c* X7 vset trade-times-total 0
4 s! E& Q8 {3 ?; [" m; Pset trade-money-total 0% B5 u4 s$ r3 m+ q5 l: |5 z; L
set customer nobody
* }) C8 O, i- x. qset credibility-all n-values people [creat-credibility]
) I7 g" l2 P: I4 ]5 _$ I& F" Oset credibility n-values people [-1], i% T# S% ~ S7 L9 e. a& n" j6 B
get-color
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5 T& c* B5 _8 Zend
5 Z9 R* v9 P1 X" I- ~
' w9 X) F# v2 B( ito-report creat-credibility- U3 W1 \7 z, c3 F
report n-values people [0.5]# z' i# `2 n1 G
end
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to setup-plots. P/ R3 L& J! n1 [0 L; J7 a
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set xmax 30; L0 k" }/ g0 M3 M' |1 z) x
5 | ]7 m2 [. x. K, u% g+ ^set ymax 1.03 g2 j j3 h3 Q! X1 i/ ?9 u( a
8 D: T; D; ]4 Sclear-all-plots
9 m6 k& ^# }/ y) o; H2 t2 G3 z2 Y
setup-plot16 Q" b2 n k6 @5 V1 J( U7 i
+ b" X" b" p* n! N4 ]setup-plot2' v- \* s$ N, N9 Q3 U1 Q
6 A8 n) j5 L Jsetup-plot3
5 K7 u* T: r5 @& P6 S1 Uend
5 u3 K: I2 N" Y% O" M! e2 p+ H6 @* _! L) F
;;run time procedures- V% ]3 I. I8 q
8 r6 B' c& _& S7 N, {to go; M; u- Y7 |6 _0 a/ H7 i5 K/ B. x
, ?! h4 g+ q9 X/ Zask turtles [do-business]
# L h7 h& J2 @) Q( r6 kend
2 w$ o9 d3 f1 H, k* J+ u8 }3 l% z. k1 D) G3 S% e
to do-business 6 X# ~ w+ l7 Q; W0 r' y% c, M, m% W
% `! o2 i7 U7 y/ x5 L w
9 o4 D( q; Y$ E* hrt random 360
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) y2 o+ h4 X( P- qfd 1
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ifelse(other turtles-here != nobody)[9 j6 o( T2 Z# U f/ k v
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set customer one-of other turtles-here
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% ~5 j+ U" T; T+ A; O b1 r; l;; set [customer] of customer myself2 A3 A% d7 B( j- c# k
; s( H; Z7 i; i- q- F" W+ s5 x
set [trade-record-one] of self item (([who] of customer) - 1)! c6 r* t- h* L8 @
[trade-record-all]of self
# Y; d' K. n1 g;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self p+ r& D( I* `4 q) J; r, b0 K
2 V+ F* K% p2 g$ K, gset [trade-record-one] of customer item (([who] of self) - 1)7 g0 j4 c" M7 X8 e- ?$ ^! t/ t6 w
[trade-record-all]of customer( G1 m0 k( `1 m& `8 H. t
" E4 c; S8 g! j. B5 zset [trade-record-one-len] of self length [trade-record-one] of self
1 r$ Z- d& f5 _# N
' ~( `: k' Z3 |3 I- U% ^: C7 ~set trade-record-current( list (timer) (random money-upper-limit))$ V$ R0 g* N% B& r0 Y. Q
3 d. l2 C% k' b+ B7 ^/ b
ask self [do-trust]5 ]# w' X# q' |& w
;;先求i对j的信任度" o4 W' |" u5 T, H4 a% [( Y
3 r: a8 N: k: F
if ([trust-ok] of self)" O$ W' V7 j) r. `) F: i
;;根据i对j的信任度来决定是否与j进行交易[6 B2 }4 A3 C$ [3 |% w% H/ V
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
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( `9 z D9 s8 i9 X) [+ `; Fdo-trade5 @1 }( H* M4 A3 _% o/ K
5 d- l3 R" z* i X& I6 fupdate-credibility-ijl# H0 i6 D3 ]7 H6 M3 d$ H
. j* r( F1 Z9 X A& ]$ uupdate-credibility-list/ [- h, w7 b: H- K* ?/ Z, @
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update-global-reputation-list
, M" a+ b7 e# K9 K# [
: B8 u4 I. C5 W. O. D/ \poll-class* @3 r( [8 @; s j& O
* E1 @* W6 D7 Y4 v# G" k% h; jget-color; ?$ u1 ]- H. p
- l" R. L) O% k0 z
]]* V4 |6 D G* q; C* K$ s
* ]0 B1 ?0 k* q4 w7 M4 P;;如果所得的信任度满足条件,则进行交易8 Q- n7 o; V! C+ F8 o0 C
4 \0 J6 o1 B; [. i0 R2 {
[" b; r& E8 K; J/ A% A# |
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rt random 360
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# b: B2 G1 T Vfd 1$ i- ~) H( k0 E1 J3 g
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] R$ D; ]- K6 f8 a F6 u0 u
; b! A& R9 l+ u8 G
end
/ R7 C- U% ^2 r9 `: K V1 c( H" h1 {( `) I b2 k" r+ O
to do-trust
' v5 c$ k g1 ?6 r: N2 O3 Jset trust-ok False
$ v$ U$ k% H) o, t) v: e* k
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let max-trade-times 0+ v2 W3 N: N9 q& r
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]7 n' [- X0 k! M* Q
let max-trade-money 0
( |' t. R. y$ oforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]- a2 L6 F' y+ M) `: j K. O' g" K! w4 z
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
* c0 N% I8 z& u- N% O& Q u: v: F g) w2 A" [" a$ _2 r" z5 l
/ Q! k4 o+ H& k& x; V2 @
get-global-proportion
7 \) T X& @* S4 @let trust-value
s8 |# j5 u" b# z, i2 ^6 Y7 m1 d8 hlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)) G% ] h2 @" ]* ~1 }- x
if(trust-value > trade-trust-value)
6 d* }2 I6 k& |+ [' |[set trust-ok true]
. C# K' K# L& g0 e; }* Kend
, [8 ^! n5 s: S ]
% ^6 @7 r% k" D$ k+ v+ fto get-global-proportion! t V, ]! ^. d# s$ C# |
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
+ j* P6 r: q7 w% @1 y- E3 ?[set global-proportion 0]# R' J! B$ `$ `% E/ D
[let i 0# j0 B3 a+ w. n% ^% P9 F
let sum-money 0
( q8 B W( t1 t) s, t+ l' lwhile[ i < people]
2 O& K. K# V% N$ O; S4 w/ M5 _[
2 k2 c0 S* n9 d o6 Vif( length (item i- _4 W- G6 Q* }; E! f# u( l
[trade-record-all] of customer) > 3 )8 L4 h% Z7 G6 W7 x' b
[, D1 w* k6 I" m9 k( I6 `
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))$ Z; l1 @. H! j) L4 |
]
; X2 ~- ^$ i4 I* e5 t]
! d) n: F, {2 r: U8 M) K' Tlet j 0- A5 I$ g) U$ N+ ~$ V
let note 0
" I0 q8 r5 a7 Uwhile[ j < people]
9 _" w' q3 }8 k- _: n/ G0 O5 Z[
& w0 `/ t( q3 M8 G; G. ]if( length (item i3 n+ I* S) D J3 S& H6 r9 _
[trade-record-all] of customer) > 3 )
' A+ r; x3 C% E& D# u/ K4 i5 w Q[
, [ I# h: L1 Vifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)7 _1 T u% X& }
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
; h+ W2 r$ ?1 Y' k5 \, @[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
. j1 V2 G! j7 C1 s' h]* h2 Y( j1 J2 o9 X" D6 F
]
1 [2 K: h7 H/ ~$ ?* Uset global-proportion note: q9 K' |9 j Z" s4 z) n+ f" O) D
]2 a& W6 F9 l" z7 K3 |5 U, I3 m8 M/ v
end
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to do-trade
+ [1 A. x+ N) K5 ^- V* j+ c. B;;这个过程实际上是给双方作出评价的过程$ |1 h" W2 C, G( \2 K
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价4 R3 k" {( h" ^) S
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
0 p7 {3 G3 S4 h5 mset trade-record-current lput(timer) trade-record-current/ T. S' d, K' j; F! K$ z
;;评价时间
& n, B( E3 D- C9 R; N6 P! I8 J6 bask myself [
+ W9 L1 g$ M* [4 L9 @% x2 eupdate-local-reputation
; Z; p0 J4 T+ I: M1 eset trade-record-current lput([local-reputation] of myself) trade-record-current
! F1 b& o; H+ b2 r]
7 X- @' P. C( Z# c# eset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself, y H& }) u- A: W" ?
;;将此次交易的记录加入到trade-record-one中$ P, Q5 D0 t6 U# h8 G! I: Q
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)3 |, A: O9 j* K( ?
let note (item 2 trade-record-current )
! g" d5 D+ [! d+ O J# Vset trade-record-current& N) e p* _0 t* `
(replace-item 2 trade-record-current (item 3 trade-record-current))
' @' M+ X J( B! e: J9 iset trade-record-current
, i6 @! F, M0 [! U, i7 u(replace-item 3 trade-record-current note)% i& F- K+ X) |$ ^
$ ~, X9 m% M6 r3 a. M8 F, J8 ?7 {6 H" k
ask customer [
' [" ]3 X/ ^$ K5 Kupdate-local-reputation
?/ Y8 y7 m9 c5 |2 ?" Dset trade-record-current: _6 y0 ~! I8 ~
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) i; Q) H& H* u2 k& f
]
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set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer4 V# G6 p7 _2 `2 J o
9 ^8 H7 @& K# f- X2 ?set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
8 K' B1 K( M. ?;;将此次交易的记录加入到customer的trade-record-all中" j) x& h$ }7 r
end b |6 @+ W- y) b3 ]$ N
. a9 }$ L9 t! O" f3 s7 Hto update-local-reputation2 r# Y7 U( h: n. h
set [trade-record-one-len] of myself length [trade-record-one] of myself
' R0 j) W _, f3 ~) c6 I
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;;if [trade-record-one-len] of myself > 3 9 @4 e: B, N" T
update-neighbor-total
! k4 _0 J0 {8 p1 c4 n$ y; W9 v;;更新邻居节点的数目,在此进行
# Q. P* y& @2 H9 Qlet i 3
( D9 R1 s; X2 w+ plet sum-time 06 |. }6 A" W) w- P- a
while[i < [trade-record-one-len] of myself]
) ~" B! g8 D% R/ D7 {/ C[
5 L1 R5 X$ H8 a! c- Y/ q- @set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
# e3 l: b; n! _- I% Dset i6 ]6 w9 u4 g3 r3 S5 Y) Q7 _
( i + 1). U7 U8 t' D7 d4 k# s3 j
]
/ T: ^. d2 k& J: e5 P. e; P6 jlet j 3
9 u4 ?$ F; g# c0 |let sum-money 0$ |# y& {- H) @8 Z! Q* |. Z: t
while[j < [trade-record-one-len] of myself]! }! v0 z6 u. l& G
[& O6 T* o! V0 _' u/ d8 U
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)
. P6 W- E1 V! f" L$ fset j
" P9 Z" y! W1 B, A8 y9 i& ~2 e( j + 1)
) a1 t" l; u) j1 X, x$ O+ d: G]
! ]- m" I0 i1 P( |5 K) xlet k 3$ @7 L. R$ S$ L' K1 p* D
let power 0, }8 F, o7 J, j3 S9 \) }
let local 0
2 [7 x3 z8 H& y Rwhile [k <[trade-record-one-len] of myself]
6 d% O/ q: }5 ][0 ^5 u% U- [% R0 t z
set 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) ( ~, Y) Y: _- a5 F
set k (k + 1); ]5 U, b5 b5 a! c3 Q
]; H- w/ A3 N% c+ y$ J: d" Y) ]
set [local-reputation] of myself (local)
5 \2 n. y2 M. J6 q+ j7 Nend
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to update-neighbor-total7 r- l5 O1 B2 u: i
4 K4 t; {( W! A; T7 e6 Z: h6 G# eif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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1 z; \2 I7 s8 H. O. Yend) ?3 I# n3 W. ?' S9 b8 i3 H \; T
6 I* f$ P8 J! F5 K- i% j1 w9 Eto update-credibility-ijl ' w; D4 ^8 h. j* X' T& T6 T
& c9 d% P1 P7 f. @# K' ]& n8 q;;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。2 \ H9 I3 k P$ x- B: S/ M
let l 03 r# z, o5 j9 t
while[ l < people ]
( C9 S" U& l7 _4 G0 a;;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% D3 y1 Y* @ ~
[0 l' Q2 E+ R7 x7 \# k5 T
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)! Y: G( t* K! G4 r5 O2 F
if (trade-record-one-j-l-len > 3)
5 }: {8 R" A. \" L& s% j[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
) N' d5 U* {" f B& olet i 3
0 d" W" |. u5 I- Clet sum-time 0
) L h& b) M. U: ]' [* Y% t) `while[i < trade-record-one-len]' U+ S) L/ e3 \8 `7 E
[
' n6 n8 ?% l. y1 i0 [. m Lset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )+ U* H, P# h; n' S3 e9 C8 i
set i) `9 m' g7 |, U! g4 t3 w/ z9 v
( i + 1); s0 t6 ?4 G0 U$ t
]
. D0 c! |$ U$ U) f4 Olet credibility-i-j-l 01 q2 j5 ^" @3 G. J/ V
;;i评价(j对jl的评价)
& `( @2 A2 @' a4 I: Q5 W6 vlet j 3
) m( C* f* E( {5 ~' t! a! O" Wlet k 4* f) r' h$ r! D$ {6 a
while[j < trade-record-one-len]
, c+ Q3 ^$ f# d3 S; p0 B[9 g: z1 N r. w6 L R& l! G! i8 A
while [((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
/ j2 r% E3 t$ |. z9 p. iset 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 F! h+ {/ P" w; m
set j
& L6 l; n ]% k* e' b) \( j + 1)* Y/ Q/ M$ f$ l0 B) E) M5 B w
]/ W6 {: @9 F. Q n* ?( ^* N
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 ))
" u7 p$ }$ L! z8 \# y6 p- ^6 w4 x/ R$ y# H4 S
* _% H9 v$ I3 clet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
( y' D$ u* E3 J/ t2 w, N8 h! C;;及时更新i对l的评价质量的评价! }, W0 i# |7 F; o
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ], u/ s$ m/ w i7 e
set l (l + 1)& s4 N1 s$ m" r$ H \4 [3 l
]
y# K7 e$ \5 J% mend: D/ @$ U4 b0 Y
, g7 h6 k( [9 }to update-credibility-list2 X! e- g' E& z/ n$ C
let i 05 s3 f8 x9 _" P' g. O) n8 m* q- l
while[i < people], ?+ c7 P% z* g9 M9 ?- F
[8 O/ T; Z2 G. n: J7 p
let j 0. A& c) e2 B) [$ z) j) e
let note 0/ G* q1 `0 J# u8 W3 ~
let k 0
1 o8 g: C2 Q- c" t1 @;;计作出过评价的邻居节点的数目
9 ? d" k. }6 w6 j+ S# p- jwhile[j < people]
% U! j Z5 m) T; [9 \2 `& a8 }, Q[
( V/ ^* K' j/ Mif (item j( [credibility] of turtle (i + 1)) != -1)
$ B: F& q! f; e* t;;判断是否给本turtle的评价质量做出过评价的节点6 G3 c9 _* ?1 ?- ^5 w
[set note (note + item j ([credibility]of turtle (i + 1)))8 O0 t( [% H: |& t2 Z
;;*(exp (-(people - 2)))/(people - 2))]
) r, B6 \5 @0 u' a. V9 |6 k* K! Zset k (k + 1)2 @4 Z" t! C% i0 a# O
]- @/ e" p% v. j! c% s/ a! V
set j (j + 1)
+ G6 _. g* w) D( x]
* w# r$ Y# V+ f5 ]$ ]9 ~set note (note *(exp (- (1 / k)))/ k)
( y$ w. l8 |" Y5 sset credibility-list (replace-item i credibility-list note)3 M! ?: c% x$ c" _
set i (i + 1)4 A' M; O: a1 n1 @, K- j* l9 p
]
7 M, t. ^2 G" x8 e1 ]* x7 M3 a) Aend9 U2 {; X+ k& t8 k( ~" G' P/ H
+ h) \$ p- S$ Q9 S( }3 m5 Nto update-global-reputation-list o: i- K, s7 L: c
let j 0! f6 W' }0 ?4 e G# f1 y
while[j < people]& f2 Z" u! _% ]. m. H& I3 K
[
) u9 X4 n- x- m4 Z: plet new 0
0 z$ b+ h j; I. n4 o;;暂存新的一个全局声誉0 T: K. T" C: Z5 \3 N" m
let i 0
# t# H* T* D. X+ R) b! I. Y5 [let sum-money 0
" t% y! ~0 b1 Q; k0 T4 P: R; k6 Jlet credibility-money 0. O: N/ a3 p5 V: O2 y6 M
while [i < people]( f6 r+ h. K% Z, x/ {
[7 _8 z( d1 S- ~, I; q
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
8 B; y( r" U5 u2 D, s7 V9 {set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
( i' }( z' E" N; g' j* R2 Z" fset i (i + 1)
9 h& d8 G' {* m2 }# K; M: }1 p% W]
: b# z5 C. J) I( g, ~6 Dlet k 0
! A8 v* s" b9 X5 r& flet new1 0; H) @# r5 N% U5 |4 {# w# t
while [k < people]
; ]: N3 D# `8 m[
4 v) p6 H# f$ q* @8 qset 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)
0 c5 M! n9 {/ H8 k- y; | x$ n ?set k (k + 1)/ {$ T) y( g+ l D. U5 e9 [% _
]& C- O" A6 k- O+ d3 d. c8 h
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
) s3 Y9 A5 T9 [+ A' X: g, h' vset global-reputation-list (replace-item j global-reputation-list new)( G- K5 \! b( q7 u- X% P7 y# f; P
set j (j + 1)( F; w1 p B" t; R0 c- \+ ~; l
]6 c4 P/ g3 ]' f O
end( v- g8 R' T+ F; g
# w% c5 {, U2 N U- H( b( Q) O1 z0 O9 [
9 _$ ]0 K# a; K! ^" W7 Q: ito get-color
1 u9 {7 _ q- t0 C1 Y
" @: _, d- O9 {0 Qset color blue+ |; U; D' L1 B# X* b- d
end5 p1 n5 Z, y0 `* k; ~$ K
! `3 w6 O' U5 @3 v5 M' Qto poll-class
# ?4 O: ]* Q3 W! aend2 f6 {6 S2 I- g( f% F
/ x2 m9 B. v A) u$ S+ }! z: Sto setup-plot1
' `# h7 S/ A# o
1 X3 F8 |% {- Tset-current-plot "Trends-of-Local-reputation"
6 k& Z; o2 Y W9 u# N m! O$ O/ _5 h4 U0 o9 P6 ^" Z8 C, l) }
set-plot-x-range 0 xmax
! V1 G) L, e8 C: D0 w; R5 T' }5 k- b8 k V( w! A+ T
set-plot-y-range 0.0 ymax8 O8 g& z/ F1 x" h3 K7 q* t
end4 C$ C. ^3 Q) ]
5 P/ Y2 X2 {' sto setup-plot20 x4 @9 R; ?/ y
6 s) G3 d) u# l q0 ~set-current-plot "Trends-of-global-reputation"
' d* c; g# t' m k9 W) b% y3 @! f9 a( c6 r: G1 z
set-plot-x-range 0 xmax9 C: y+ Z3 b1 {
( M9 O9 S# g& H+ Pset-plot-y-range 0.0 ymax' m1 F' r5 A- C, j4 h6 K9 H
end3 R3 `3 e; o- D* u/ C
1 D% ]9 Z0 \. {4 g& C% s& ?to setup-plot3
! A& t$ Y0 i. O7 Q; Q% Q3 q
+ t, C& |1 J. N+ h5 d+ p. dset-current-plot "Trends-of-credibility"
8 M9 g' U1 u2 U; W5 F5 h3 W$ T' I* k# E2 `" }; O) {1 H
set-plot-x-range 0 xmax' X# e: W$ Y7 \9 p7 R& D7 [8 c
, R6 d) p! h$ r% k4 B; J h- ^set-plot-y-range 0.0 ymax
- b \$ o2 }7 H# t) i! L1 @end
7 Z1 x5 c5 t5 f1 S- m) z. u5 `
w$ U; i0 d. \+ L6 T% Mto do-plots
; C) o! m; y- X+ i4 s$ u" fset-current-plot "Trends-of-Local-reputation"( w9 i! s6 g; g4 y _
set-current-plot-pen "Honest service"& g3 w9 a" a" y2 W9 Y
end
$ P. o L1 S' x! R) U1 [. r6 P
. j, X. C6 p9 c/ F[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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