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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
/ q- C- [; A) [) j6 wglobals[
1 ]. s8 I; V# l& a7 a4 S. q8 zxmax6 G' C. Q$ [; H" A( p
ymax
1 e1 T/ a6 D1 `3 aglobal-reputation-list- K" j x1 o: ?0 J
+ Q" Q7 G! e6 ^$ ?4 f5 @;;每一个turtle的全局声誉都存在此LIST中
; C D0 D" `1 G, b3 u0 @; n) Hcredibility-list7 v3 r O: V4 A- a% U3 I% E
;;每一个turtle的评价可信度
' c# O- ?, v1 ~; H s x6 zhonest-service
( O [* x- c1 g1 ~8 K Zunhonest-service
8 s/ m+ [ e# l4 boscillation
1 _0 \+ ^' W9 Z( B6 E% B, rrand-dynamic
1 @$ Z* p( m2 {, \8 Q S]
6 H4 t7 e% g' w* v& _, T% y% C9 ]8 v$ S: ~6 y8 j, l; A
turtles-own[' M" Z+ e2 F+ ]2 x: S/ |
trade-record-all( M! `& d% a# U5 j+ I3 h
;;a list of lists,由trade-record-one组成
2 L- T0 D9 [. Jtrade-record-one
1 M$ s' r* e' ] d;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
1 N) F7 S! U& ]( Y! J# d* o. }1 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]]
7 r% h: K' M# B: E$ Z; \9 ~: ^% Ptrade-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]
W# s1 n! R/ d6 Rcredibility-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' j8 v7 X) u- K& a( x
neighbor-total
; |3 J5 s+ F# |( a;;记录该turtle的邻居节点的数目
( c0 v2 X4 v$ d: ^- btrade-time
( i7 p! \' [% o3 n: |. F;;当前发生交易的turtle的交易时间& k6 a0 c& [! ]
appraise-give% R1 i2 N% L) W
;;当前发生交易时给出的评价
) n% T+ |5 k4 Nappraise-receive/ u, O9 p" Q, \8 ~0 a
;;当前发生交易时收到的评价
8 y: E8 S- j* P& J6 D' _. n Nappraise-time; H. x6 A, \. q1 i
;;当前发生交易时的评价时间0 ^- }' T9 R8 U$ B$ {' i
local-reputation-now;;此次交易后相对于对方turtle的局部声誉% l3 Y8 r. t) y u2 R
trade-times-total
9 l( ~! J- }, o: P;;与当前turtle的交易总次数
1 B: q( b; g( _7 D& B' W2 xtrade-money-total
: \* L! I' W( y& j1 T4 l Q9 K3 w7 x;;与当前turtle的交易总金额0 h' E2 ?, C" J9 N2 ]6 G" k% J: b
local-reputation& i; X! r" n) t: _0 T
global-reputation2 ?" c E' q% U5 ]# s
credibility) m, r5 P( b' ^% T: X) h4 X
;;评价可信度,每次交易后都需要更新
9 `* D4 m# g3 U. Icredibility-all
9 f: ?7 I/ D* [' p;;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
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* h1 m: O; s- Y% k3 M- U u;;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: P: o% M! i( n$ |4 r
credibility-one/ { a$ C4 V6 Z# t- }2 y
;;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, F7 [) g$ |: D
global-proportion/ M& y6 D8 F/ z6 [: i$ i8 ~
customer
1 n( z+ n: K& a3 y5 Ucustomer-no. H( m( r; p5 M, `0 D
trust-ok
8 U, j: Y* E L3 f) `trade-record-one-len;;trade-record-one的长度
4 o' Q1 k1 ] Z5 z- m4 f4 E6 K]5 U* D0 T1 L1 j
; Y8 u* ^( R* d( l
;;setup procedure- b$ L7 n9 ~0 K% G2 r
/ d6 \" v, f1 {$ s- s/ ^4 s) U. T6 wto setup
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ca g) Q8 q) {' {% H& ^6 y
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initialize-settings; q1 [( K4 g* t% U7 t' {) E/ J" a
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crt people [setup-turtles]
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8 }3 t1 T5 f, c8 | mreset-timer
0 N( N* Y! L8 X" J9 b5 n$ k& I# a% \6 s
poll-class6 l# @( _0 f2 A, k
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setup-plots
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do-plots9 J* |/ N. e4 ~* j/ c. F- O4 @
end# B$ t. M* S5 V
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to initialize-settings
+ d) I2 u9 o. x2 V
/ F( _) H& ]% R% S9 z4 eset global-reputation-list []
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n, B1 |) Q$ Y7 Vset credibility-list n-values people [0.5]6 w5 F7 \) g2 d4 R
1 r' R5 I+ c+ E5 V$ Q" Z2 w pset honest-service 0
* ^% s. \" _# e' n) z# r$ n/ A9 ^1 q9 o T
set unhonest-service 0
( ^+ {8 b- ^; h6 p0 z; P5 I& [- u4 x( A s2 U
set oscillation 09 R% j. p* k; x$ K/ V/ ]6 Z, b7 h! r
% G7 q+ P$ H) Q, l$ {" k" b
set rand-dynamic 0- U1 O) ~! X0 R$ y7 b
end
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to setup-turtles
* ]' O, @" A& Cset shape "person"$ o) x7 {$ l) m1 ?
setxy random-xcor random-ycor
0 u' u: Z+ h5 wset trade-record-one []4 X) N$ N8 Z+ g. ?9 p
- x7 J0 {$ F9 g. r# m8 Z
set trade-record-all n-values people [(list (? + 1) 0 0)] $ U9 O+ s% b9 e8 N3 w+ c9 W! S9 P
3 K! t9 d3 K k1 B2 a3 Q0 d
set trade-record-current []3 A8 z+ B8 x6 n: L
set credibility-receive []* J% }+ C9 M7 p
set local-reputation 0.5
* _& T' h8 R- h& wset neighbor-total 0
. K. b* a9 _5 k, @8 Uset trade-times-total 0
: A$ Q0 ]8 ~# o. Sset trade-money-total 0
9 _0 g. N2 b3 L2 d3 z nset customer nobody5 P; l9 ^0 L: W; G7 v2 C
set credibility-all n-values people [creat-credibility]
1 x6 G% x0 r K2 @6 r8 Rset credibility n-values people [-1]9 }3 k# V6 K$ S6 N |2 m5 Y
get-color# I/ Y9 Q- F% x* O; o) T4 Y
0 _% ]/ v* @2 o# r+ u! y
end
& I- z4 X/ g8 ? b0 U3 f
3 v, f; d) c/ ?* j9 V, q, Q0 gto-report creat-credibility
9 n0 a& T; p( ]5 `1 c/ R9 x; R- qreport n-values people [0.5]' u! g( u& j; J0 R# y4 M8 {2 G4 I! S
end! i' l, |9 i/ m8 R* s C
7 ^5 S% p/ _3 q% x% ?
to setup-plots
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set xmax 30- T* L! I' _4 `& U8 m
) H) J) E* s1 x
set ymax 1.0# p' q) A% P+ V* j, D# C) ^; g+ m
8 |5 W( u/ W! o0 j" n% cclear-all-plots5 @' a. a5 I6 w3 ?5 p& N
2 B) \: y5 T" d+ }+ K2 D Z0 Z
setup-plot1- L! a7 @3 W7 k
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setup-plot2 |2 o1 G7 }8 w8 H1 h
8 }# o/ ?: e% q. F# Y1 n' Tsetup-plot3
6 R6 R$ b2 A3 j* iend
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6 r2 _5 T0 ^- g;;run time procedures
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- x6 ^) c& U0 H, [) cto go
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ask turtles [do-business]
3 y( }2 S* V5 u3 _+ z- P. xend' L. k, V7 w8 l% M0 A& N
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to do-business 0 S. I( }6 O* D7 f3 q0 g7 n
1 P+ P6 F+ K- S3 B; A; g
S7 Z" @/ E1 p; |rt random 360
4 N" x" v' N& B" K. Y0 L% U/ v! F* y1 `. U/ R
fd 1
" @& R; v6 m% U' m0 O+ E2 t( }( O) V& ]7 C0 g8 Y4 f
ifelse(other turtles-here != nobody)[# s2 d5 V/ \2 K& _7 h
: J# S! }8 i0 e5 Sset customer one-of other turtles-here
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! t3 z5 [+ Q+ ^( [5 i2 M;; set [customer] of customer myself. k: ~ F9 w" Z3 e' ^
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set [trade-record-one] of self item (([who] of customer) - 1)
V. ]: P; I" q9 K1 }% q[trade-record-all]of self
8 a6 ~. d$ e% p;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self# [6 b% M9 n7 V9 j) L
) A9 v, \% n3 T; \. b' Rset [trade-record-one] of customer item (([who] of self) - 1)
0 C) F+ u1 t. E) @- d& S- a[trade-record-all]of customer. l1 D7 l& ^: D3 a
) S m1 }1 K# b: `8 \+ lset [trade-record-one-len] of self length [trade-record-one] of self! x" b6 ?4 z @! `" S1 y, `& I
5 c' ^4 I( P. o6 p9 Lset trade-record-current( list (timer) (random money-upper-limit))
+ }) s( j+ X% ]3 h: L5 L8 R6 }
m* E, [9 V) T rask self [do-trust]' Z+ W# E- F5 @8 j: p) y, W
;;先求i对j的信任度
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: L' t% u& p2 T/ Q+ Aif ([trust-ok] of self) D0 P' ~6 ^& o7 W) J
;;根据i对j的信任度来决定是否与j进行交易[$ T# g$ h; h A6 Q, v/ x
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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2 @, f8 \" y5 s R+ ^ ]1 L& Edo-trade
O' ?6 U# L* t. ]( L* G- ~ t% A1 `' I3 A9 T( y' w
update-credibility-ijl6 B" j+ n+ q4 S* B: R" _2 g
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update-credibility-list
" i* {( y: y& ^0 s! x& c
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, g1 Y6 {6 q2 c0 W; w8 Lupdate-global-reputation-list4 m9 s+ n' T2 r/ J f
) o; s# v% \9 K5 zpoll-class0 ~! Z* P# K! o1 k
% a n) c) o7 _& f" q
get-color/ W( k0 j- | V7 Q8 F$ U5 Q A
3 L! u+ r7 `* T$ \]]% b* _ O |8 A) d% E' s, u
+ x; U3 F& \" K f$ G) N;;如果所得的信任度满足条件,则进行交易
$ Y& V; k, h- x' b, U
$ B% ~% r/ N6 e' a4 z: m. Y[
# {2 _, [1 [2 o! b/ m+ j) ?4 Z' w: E7 \) R! l4 R
rt random 360
$ @5 i6 G. O+ L' B4 u8 o" q; k. U, ?
fd 1+ T5 @( {* u9 N% \& ~
/ _1 h3 U0 V, C& c$ y9 n& W
]
9 J/ |9 Y8 ^1 q. A) J* @
1 v+ s9 L) [) E/ J* z5 X/ yend
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+ r6 c, Q8 v. x. r# l4 z3 \, uto do-trust 2 K; D$ Y4 o& W
set trust-ok False
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2 Y0 o6 P4 S2 G4 y6 E. g2 V" ilet max-trade-times 04 Z' i7 h, H3 n+ G* Y
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
2 b: q2 e/ w0 E' g6 Y) ]0 |. glet max-trade-money 08 |1 u* T: Y. W6 V
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
" ?- ]% c* l1 a. J1 Vlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))1 O$ t. R) ?! K/ ?5 D1 x% \3 m
7 u S5 \1 u5 X; A! D
& l+ c. Z: A& u; ~6 \
get-global-proportion$ o" [( ?6 y# D7 ]$ H! b, n
let trust-value
5 _3 W7 {, m! h$ Clocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)# h6 y5 n: p( h! N8 A! L4 s, T
if(trust-value > trade-trust-value)3 N: i1 S- f8 e0 P( J$ y
[set trust-ok true]
S1 D5 L* o; u$ Cend) f) _( w: ^0 G2 j: `6 [
# m# E! D8 `/ D- u1 z0 B r! {# z7 Tto get-global-proportion
" s4 }) w6 f( v6 Q& Kifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
+ ]1 u3 D* v, u+ Y) Z0 a* m[set global-proportion 0]: s4 W& X ?0 I7 t& U$ c3 a+ G) @
[let i 0$ t7 r% E* x |' K
let sum-money 0
" W: O4 G7 N u: kwhile[ i < people]
- m" T5 a1 X4 G7 g. }/ Q4 \[
: n* { ? I* B, V- jif( length (item i. k8 [& K; u5 \/ V+ T
[trade-record-all] of customer) > 3 )* F; K& V, x$ o: l. V5 [. K
[0 B" f' \ G& {& I( A7 K1 z
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))+ l" h3 t6 F- K# X
]
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let j 0
* a" Q7 a( V& {' [ r0 plet note 0
p0 s) n: }- D4 l6 ?% Ywhile[ j < people]
3 `; b {1 k, J" O[5 Z3 m9 A* o% a0 _- A$ P% e
if( length (item i
* K* ?, R9 U$ V+ @2 h o# {& ~[trade-record-all] of customer) > 3 )! r- r) D: o$ D c" i& u* o
[
; `: w5 A( v# P, Xifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
u- z1 e2 {! X3 z f[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
; x }3 K1 l5 m. g[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]- `; f1 P, U1 V
]
& n1 D$ S' }, e% `; L# x" k) A]
& H+ S4 [' ^1 b8 s+ _( Z- Bset global-proportion note4 N; Z, Z4 q( a! ]; Z# {8 ]/ X# c
]3 c! S7 A4 \% B- a3 i* O' S% s# s
end+ p. ^. h9 R0 t2 @$ ]# f
* D" ?( C% \/ F! }to do-trade- o8 o7 Y4 G! E3 z5 f. Y( o0 ?
;;这个过程实际上是给双方作出评价的过程& j' G4 @1 E5 _
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价, E7 B: L; B' |! A
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
. T5 j. v9 v2 F" ?+ T: jset trade-record-current lput(timer) trade-record-current1 h8 \1 [- C7 g4 N: n: e
;;评价时间: i- V4 m% U; z1 o9 C
ask myself [/ ?% B/ v1 @& e4 t
update-local-reputation! Y( K) F8 M( I' |7 B5 Y+ `- Y5 _
set trade-record-current lput([local-reputation] of myself) trade-record-current7 M( {& v! M6 i; o# q
]3 d' j9 I. g7 B6 m; {( Z, @) X4 m4 l8 q
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself# X! s- b( J+ U. t# W" }$ W& |$ S
;;将此次交易的记录加入到trade-record-one中
; a( f8 b9 p( `# l% }& K/ n1 Wset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)' `9 Y) m; J9 E3 ]1 K9 ~5 F4 B+ S1 K- P
let note (item 2 trade-record-current ). z; T' m/ r5 L5 J# W0 ~
set trade-record-current3 q. R! r; s: J
(replace-item 2 trade-record-current (item 3 trade-record-current))
0 r" @! h3 x3 Q4 y: ]set trade-record-current \7 |# R" O* @$ C! c' S
(replace-item 3 trade-record-current note)( [5 y2 w4 I7 g* a* H5 W5 I
; v2 F" w; [: F9 m" K* d3 E
5 B' B3 d8 T4 `; r6 _; Sask customer [
+ K# p; Y: l9 {% A, [0 P; pupdate-local-reputation
8 F q% Z# y- e2 p( m7 \7 Dset trade-record-current) V% a% e( r6 ]+ ]$ G( n- D5 v$ M
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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, y6 b( _' I8 v+ j5 q+ s1 D" o: |& f4 Z: {$ Y, F8 d
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer6 r/ M, t o7 } }" q$ N( C
: O9 F2 c$ o" O R7 A) Qset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
4 m9 p! I% ]7 h. C) ]! w. m' | K;;将此次交易的记录加入到customer的trade-record-all中* T( g5 L& D) j5 r$ q3 J
end
) z, O7 ~5 V! W7 S5 R @6 y
; L$ {3 [) Q9 H+ L; ]to update-local-reputation
" i7 y+ }$ h$ q1 B* p& xset [trade-record-one-len] of myself length [trade-record-one] of myself, \1 u, P. [9 n L9 f! F
* {" X3 V4 }/ u7 d4 V) {3 f
D9 l3 ^5 T2 |
;;if [trade-record-one-len] of myself > 3 * Z0 ~; z. ]+ ?
update-neighbor-total
1 ]# X! z$ v! t1 E2 H3 H: _;;更新邻居节点的数目,在此进行( a6 j& {* T4 g3 W! v
let i 3- A/ [4 Y) N& D0 J! P' ? U5 l, \
let sum-time 0
' @* _5 z. z# I3 S8 F6 }while[i < [trade-record-one-len] of myself]- R0 X- t, K; L3 B
[: F; X& v! p H6 g% c
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )+ `2 g9 y3 l/ M
set i. m$ |! v" M- i9 Q4 ?, l
( i + 1)
- |: D0 d9 U G* s. P5 a; r]& F% f+ H9 ^0 d1 }2 \4 [% H
let j 3
/ N ?& M, H5 q2 S0 ~( |let sum-money 0$ l) |; T* D" p7 B6 m2 b' \
while[j < [trade-record-one-len] of myself]
5 Q: Y; n. K d8 W% Y c[$ j" ~+ h6 n: N% U6 E$ s
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)7 K5 e( l/ d0 m; s
set j! X" Y/ u+ C* r: X; b# u
( j + 1)# X, V: O3 `4 `/ w/ w& I- c
]
, @: q9 b* g! k1 a1 }* F8 glet k 3- I7 G: u: a9 E
let power 0
$ F% F$ ^6 c. e& _0 n2 `& Plet local 0
, [: Q& D7 h; s& q0 A, ywhile [k <[trade-record-one-len] of myself]
1 V9 Z" @$ k! b, s! v[6 ^+ _! } q! }" d# `/ e
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) - s0 z9 f; W" T) w* T; Z! l" I# C
set k (k + 1). a# `- u* W* s. s0 A
]
8 h6 B8 ` o1 V$ s) i8 s1 `3 l% K2 Qset [local-reputation] of myself (local)+ x; }2 t7 O) E/ S
end, h9 d0 p7 w* w% ^# I9 O
! Y# a) f, b* @( }to update-neighbor-total
5 f0 O: c# Q4 s& B3 L
! m4 S/ E9 s( P* Z: [if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]' b: d3 n0 @! v( }! I& j! H
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, G$ l3 o$ o$ k: d: k5 s) `, y3 z$ c$ rend& v. x. v5 X0 [: U
, [: t o- D8 e5 Z2 ?0 \. ~" ato update-credibility-ijl / x4 }9 c ~7 B) P& I7 S0 E" D3 S
4 Y$ Y: G) V G0 S& \/ Q8 {; z
;;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。4 {+ Z8 ~! j+ Q
let l 0" _6 m% s* f3 x! K/ R( ]
while[ l < people ]& ^$ A8 E& b" Z; F7 I
;;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
4 C+ W0 U0 m4 e$ [0 V L[
0 y; ]/ c6 b) Ylet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
6 `' z9 q% R: t2 u5 Z) U0 Pif (trade-record-one-j-l-len > 3)
' T: H$ F+ ?1 S Y[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
$ U3 A1 T6 d* ?) c! clet i 32 T% u, p$ [2 W( [3 u
let sum-time 06 x. _6 K' u. S% R3 x! i) Y
while[i < trade-record-one-len], z, f& Q& }5 I/ z: W
[
F }4 Q1 P0 m/ Sset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
% p/ d2 v& c7 Y( x9 I5 }set i
) n8 l) U2 P# n( i + 1)% T1 F* }; \3 [1 E+ Z* A8 r
]
+ M3 M- `7 X& B# B3 ^1 d& Llet credibility-i-j-l 03 A( c# j& A8 {: {4 d& N) D
;;i评价(j对jl的评价)
* [8 Z6 ~* |$ w' u( Tlet j 3
B8 f* @% \7 x+ p8 J6 Z7 T' }% V6 Nlet k 45 C* p/ {2 T# c, `$ n5 j# v
while[j < trade-record-one-len]
/ w8 B: l8 ]4 F& V9 T[
( L) d& ?5 i" r3 Z* Hwhile [((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
. x% `, M7 R$ T6 x/ z% F, W/ L, ^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 P5 j5 A0 }
set j- a$ Z; F2 U! l: Z1 f; }8 c( _$ c
( j + 1); P: ~) ?" W$ @! u9 Q3 t% {
]# u4 i1 [' x+ L( a- E" Y
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 ))8 W$ v9 s( N9 {! ?/ c( ]8 |
* |% ~( M) {- D; _
" t8 b! T3 c) H2 k) x9 G% |let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))4 x4 C/ d: Q6 d( c% D4 c4 \
;;及时更新i对l的评价质量的评价
5 E8 z* g, m: Z0 T- w; {( sset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]( V7 b$ g0 U3 }( h/ O4 u8 L3 f
set l (l + 1)
, c+ R/ F0 O& q4 O8 M" f]( E k8 E, K" \* A, y/ Q. r3 b
end
( [6 G! D) w& W- T$ \) D* n8 B8 F6 B+ |& R k! ?9 o, e( K0 Y
to update-credibility-list3 G3 O3 f3 T/ h
let i 08 T9 q6 ~1 f- Z! ?
while[i < people]5 G/ J1 C7 r) E: W6 B7 M0 `) k
[0 N4 c& Y+ [' g: {' k" ?% C& c7 P4 o
let j 04 f) ~5 O d, m* w$ B! ?
let note 07 k3 w) j" J" x0 v* t/ p# R
let k 05 F4 T! K# O# |$ `8 C; R' \/ N
;;计作出过评价的邻居节点的数目
" e6 r9 P: o6 _3 W8 } ^& ~: Kwhile[j < people]
& f5 X- g9 }: {' A# s6 r2 g[ U9 T2 i' J" G* x
if (item j( [credibility] of turtle (i + 1)) != -1)4 p' J; p' \7 G' i @$ Q' @7 H
;;判断是否给本turtle的评价质量做出过评价的节点6 X5 Z: i: Y% g. C/ x
[set note (note + item j ([credibility]of turtle (i + 1)))( A; E0 _ `4 p# K! E5 m4 N
;;*(exp (-(people - 2)))/(people - 2))]
( L4 F1 {# @9 J4 N& O! qset k (k + 1)) {9 h3 \2 m; k) i* C
]
W/ o# X g Y- L# l) M. Jset j (j + 1)
8 }- |* O# W& D$ B% A7 m]; U5 t: f! y' L) ]7 _+ a; l
set note (note *(exp (- (1 / k)))/ k)
K6 o! l A( G# f" n) x% F9 ]3 E& g& Zset credibility-list (replace-item i credibility-list note)
9 p6 Q! u& U$ m! Gset i (i + 1)+ y7 \% W0 m e1 M( {
]/ w8 |1 A' q0 p, e- P: h# j
end6 } o P$ M4 _
, d5 {; p e; j2 L: }+ S8 t. P2 p
to update-global-reputation-list3 b) ]- j+ I9 u" @" N7 t
let j 07 n$ J5 ~: j. x* e
while[j < people]8 d+ l) [$ [! h' \" c0 ]
[
- K [; U. ]; b) Olet new 0
w& d: \& |8 t$ b: E7 E6 s;;暂存新的一个全局声誉) W \& o) G+ x8 W+ x- _
let i 0) g) s' W9 a( ^1 b# L9 v7 L, D* W
let sum-money 05 X5 I3 {& C t' J/ ^- b
let credibility-money 08 o8 h$ ?% Q9 b7 e D; x
while [i < people]! |" }& X" z8 \# T4 x. W& m+ j
[ m2 i2 `; V1 B6 t- Y9 _( ~" f
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))& K$ F' u' g3 Z& y" _3 l
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))/ r) ]$ s% u; a% P
set i (i + 1) h( E4 L# m& U; u {$ G- z
]
$ `/ f2 F: B7 C$ z- rlet k 0% l% l {1 }4 }
let new1 0
) i, C) r, }) V5 b, bwhile [k < people]
% H9 J3 R. C" v+ n7 g5 `6 O[, F7 j! O% B$ _" D% j
set 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); S- U0 _( k: D0 g" j2 a
set k (k + 1)
% ~. q. k9 u0 V. F( M; y% h; W ]]/ M! k9 P8 c5 L; C2 y" x
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
9 p7 N+ w* L1 H# C6 ~) oset global-reputation-list (replace-item j global-reputation-list new)
& D5 Y# m$ d7 ^1 b- A" Uset j (j + 1)4 \# L( t- n5 v+ A: ]
]
1 y7 U7 c% [4 v; `3 X' @% Fend
0 ?, \. s/ ] \% l
1 I }* C3 F; P9 t" l" d+ N9 b$ f9 [; c" T: C7 h
( C1 T( _! o7 I' D+ Sto get-color
: t9 c9 B% h M9 q7 v2 D8 n
; ?8 S" k4 M! s5 B; h8 s, U+ xset color blue
; p4 X1 e* I: M! H6 @4 h qend
/ x" A( _: n6 A. j$ O/ U/ {; m
; M- {& g* B l5 tto poll-class
3 D- @3 S! Y& ~; I/ z3 ~end; [6 G! V: S \$ ^) r3 Y, a* ?
* C0 a8 g1 P( P/ j8 I
to setup-plot1$ X' m0 @# t; N' p5 |' |1 y
6 W4 R/ g- x, T; P7 U
set-current-plot "Trends-of-Local-reputation"# X6 I" L1 ~+ D3 E1 b5 c
2 B' ^2 d9 F( t, ^. s) [
set-plot-x-range 0 xmax
. E6 ~' |: G! G/ v2 ~3 j
6 h/ x% k W0 l9 yset-plot-y-range 0.0 ymax3 R/ w4 ?- W" f9 \' D
end5 ^- D/ ]7 }7 k$ m* K F
8 Y% h- e0 h3 u" K4 h, jto setup-plot2( b, e8 _! {' Y* e0 [5 ]1 l
' K* R9 |9 c( S% ?
set-current-plot "Trends-of-global-reputation"
5 ^' S' D% g! ]8 [& U) ?; w7 {1 C. C
set-plot-x-range 0 xmax
2 r7 @) E$ I# g3 n2 x6 m
' J& s7 L0 ^# |+ w7 l& b4 Dset-plot-y-range 0.0 ymax
: [6 ^* A. l- y5 q% L$ Eend
+ J8 d# z$ h- C- J2 [! n+ M1 I* o, m
to setup-plot30 D# t( h M# d
O4 E1 B0 X7 i4 f2 Nset-current-plot "Trends-of-credibility"1 X& l7 Y8 w9 Y. l3 c
5 z& i ~% T0 F- A
set-plot-x-range 0 xmax
+ \1 R1 U* M; g7 A
8 v B! p2 {7 S" dset-plot-y-range 0.0 ymax
* _5 \) I. {( R8 ] f8 u6 ]end
- M1 ^ u5 q+ e4 X7 k; D3 e! G! m; V4 P; N1 a1 H) u. a
to do-plots
1 _2 [1 ~$ [, e" sset-current-plot "Trends-of-Local-reputation". R0 ^2 ^& E: m; X: M* ~0 P6 C
set-current-plot-pen "Honest service"
5 W3 \" d) g' O) V6 S' n; zend
; h" q) y P0 c. A( ^" f- ?) J. S- r2 r* m
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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