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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
{, |7 ?# y' s, |6 s6 Sglobals[( X' [5 o6 L5 Z" ~; G4 d
xmax; \) c5 J+ z7 U, I
ymax X) I9 p( `/ w$ t) M2 u# i- [/ K: G
global-reputation-list
% g, P# U* H$ _+ f! c6 q+ ?" o7 C' ?' I& A0 B% r
;;每一个turtle的全局声誉都存在此LIST中0 r7 A, z' X l4 Z, i$ e" I
credibility-list
3 s& `8 Y" Z3 T$ F;;每一个turtle的评价可信度
/ x ~1 d u5 n: v, shonest-service/ c4 k; G( e+ |& F7 L
unhonest-service; A" |$ F- S7 F( n. P
oscillation( S! c" c; ~+ a! O! d. q3 Y+ v. ^
rand-dynamic
( v* |, q% X/ n0 _9 C]
2 {6 C2 \8 E. J# v: T v' H
5 {: p% D! b e. i4 B/ Gturtles-own[
% F, M0 r# z j$ a2 c( |& Htrade-record-all
- \ }; ]6 b( r" a8 U2 d;;a list of lists,由trade-record-one组成4 F+ \" L L2 v
trade-record-one4 g G- y0 s, Y) | k: 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, T5 E3 }8 y4 J6 S* h) u: l& a
" b; W5 d3 v/ Z( R+ \% I2 X0 y* Z;;[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]]! k9 a( S8 q; m) C" p
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 e% H" p3 f$ ncredibility-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* H: R! |4 S6 N; l# U0 @. V% T. n( T
neighbor-total
/ T$ q/ s4 z. R2 U/ I( K;;记录该turtle的邻居节点的数目
2 G0 X; H* y r6 w; B" Ctrade-time1 e% E4 K) T( y+ e. D/ o3 {
;;当前发生交易的turtle的交易时间' { V: s8 U0 a' n2 d
appraise-give
' C% k) H+ i& u' l;;当前发生交易时给出的评价
7 B: Y+ |, x1 U- W8 {( Tappraise-receive$ m! z- h5 z- a2 M/ I: y
;;当前发生交易时收到的评价
: E$ q/ _! ~5 V6 {' X$ Y+ lappraise-time- i9 r4 |3 @+ D" ~4 H4 o+ t
;;当前发生交易时的评价时间 O* V1 o; ]! ?! c2 m$ L' @
local-reputation-now;;此次交易后相对于对方turtle的局部声誉0 g8 {7 N1 J8 B T
trade-times-total
" a3 s, H( i3 c- [, L/ P4 M;;与当前turtle的交易总次数
5 M# M3 q7 s0 [+ T; O) R' Q5 Ctrade-money-total
6 P& D/ p7 q: G) \7 @$ q8 V, d;;与当前turtle的交易总金额0 _- [" d0 V. g
local-reputation6 p3 F$ x/ t$ ?4 {) ~8 N2 b
global-reputation
8 P3 J: A4 s" T7 |! w1 a9 x2 E5 scredibility
9 z* t2 `7 j! G* b, e;;评价可信度,每次交易后都需要更新
2 y- S+ x& U% B3 B$ |credibility-all
3 h7 M5 C1 h% }; Y1 j5 O;;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% k+ W5 T s. Y, U" i
( e2 E% P0 f. X2 |;;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
# V$ c3 D) V0 v, U3 ]credibility-one1 R$ }- m; n* \ W1 i$ h5 t7 f
;;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
0 \& t' s M i: G0 Bglobal-proportion
, v+ L' O2 t4 Ccustomer
1 F" f, h) {: ~# q& ocustomer-no8 V+ {7 ?+ i9 c" j3 B
trust-ok7 W* h5 H1 H; e7 [$ l, u$ [2 o
trade-record-one-len;;trade-record-one的长度3 J2 g! n; P3 H/ _/ {& C
]
% k# \; X: u6 D) _' U: [$ X
0 `5 Z" e" Q ` U; ^8 a5 I;;setup procedure
& H5 q4 M; ]$ N' p% i/ A' c* ^" q) J: K+ M, N) T; Y
to setup
* f8 K7 c2 V1 l% Z+ Z/ X9 Q# p6 Z2 Q2 C
ca
' h. }* z/ B. T" [( W. Z
1 ^4 ?/ b0 g6 jinitialize-settings9 c% p9 s5 _3 ?: x
4 y, Y! @9 ]* ecrt people [setup-turtles]
+ H9 ^( i2 u. K9 ~, w
# A2 l' q1 @. w6 A/ |$ breset-timer
; |1 K2 c$ Q3 n% b5 N4 o
' m- c% N8 k% v5 [poll-class
0 d7 b1 Z% q- S3 _! b0 ]/ G. x' `
- P4 S3 s k: |setup-plots
% z' m0 ?' H" \7 n! N4 E1 e% O" b1 ?* ?) l; p# n6 j2 j, w
do-plots
* C' G1 a1 _2 g" yend
6 ]3 H, C* ?: r) O3 @$ J* y4 d2 @
4 q9 }* E6 g Z5 y# F. qto initialize-settings6 E! E6 B1 X1 Z6 l4 T
- {4 |5 f5 \/ l( ?set global-reputation-list []" G2 d L* y/ v y' O
5 T- j5 H6 q% _
set credibility-list n-values people [0.5]" z4 w ] R% j; F1 l( o% f8 d
! h+ ~* F, p0 V8 q! B2 d6 U2 ]& }set honest-service 0) u4 n0 Y, r6 V5 y% {
9 C: l0 s3 E) Bset unhonest-service 0
5 J( v7 v% {/ E, O! d# |7 P! P+ v. s# I# x J, [3 p
set oscillation 0% X: j6 z/ w8 Z: s8 }/ u
9 |/ C; ]- L# O' t1 eset rand-dynamic 0
0 q4 G! ~$ m/ o) N8 W6 T5 tend
0 A) Q! M, y( o* Y( t, F, O
7 X/ g5 s( I- u7 \+ yto setup-turtles
5 h8 U1 ~( O( K9 h% cset shape "person"7 b1 m- S1 |' e( M
setxy random-xcor random-ycor
2 ~) F G- P0 w% h0 [" G$ _) U' q( `3 c: aset trade-record-one []: D' o5 l8 L; I4 D' L% c. z# I
! `/ T6 F: D! ^8 O' A% s b% dset trade-record-all n-values people [(list (? + 1) 0 0)]
" ~! f+ K, R/ ?5 @ S. c. a
* m8 A( A- w- eset trade-record-current []
; N# W3 s' ~9 x6 _set credibility-receive []
4 ], v6 b9 H( F$ o9 @( Q% wset local-reputation 0.5
1 Z$ I* {! f6 K# \+ n, N/ R! e- Fset neighbor-total 0
" X) j6 j ?! X# Y) q4 }* M* U; {set trade-times-total 0- Q3 o% P! n# K% z+ ^: b
set trade-money-total 0
& S! g4 C9 |3 y0 {& ^( Q& k! z! nset customer nobody
0 K) o: A# A4 Q' H, Yset credibility-all n-values people [creat-credibility]/ F# o. I, U3 T$ n) } f% x) [, g6 Y: p ]
set credibility n-values people [-1]0 a# V# t0 l9 v% y! Y
get-color
6 }! E) L1 N; [8 K
6 n* v3 a7 e4 e; i3 bend
. ?! ` l2 M& e8 E5 c% ~
4 u; U! M; B2 a) g$ l: f* zto-report creat-credibility
3 A1 Z: r/ k# A% w: Preport n-values people [0.5]
6 @2 V' e- p8 {end; L1 L9 r( }# z- H
4 P2 c R7 l q5 C2 L# Sto setup-plots
) i% \; m4 a1 u9 W8 e5 r0 _
0 f' q n) @; Bset xmax 306 s( ~9 b g! T/ f6 T% l
& K" @$ ~6 r9 ^; T2 @set ymax 1.0* ^2 \* |3 H7 J- k. ^) q( ^0 \' z
/ W0 D2 u; ?% X: D7 I2 D. B
clear-all-plots
( W( Q$ J# ], L5 ~8 y7 ?8 v. u, K/ c+ }- B$ ^4 f
setup-plot1) g2 `; U/ B+ @( a% S9 V4 r
* h/ x" v1 t& ?
setup-plot25 o6 T6 s, n& U! U' q- F9 v
9 C1 Z) R9 `6 d' c D; Z) T3 r5 @
setup-plot3
: S$ S0 @: G& D. J2 }) q- ]% cend
" O: H- \+ T9 X4 O
: m" u/ |3 o! S7 x$ Z B9 m: p;;run time procedures
. U9 L. v! o6 B% N( x9 p4 o8 ]9 {% C) D2 w- s
to go% `5 D6 W/ D D N
$ D3 T6 n- q, _- W3 K2 l# {ask turtles [do-business]# v! y, C+ S3 ?( A' H
end- W- [( U3 {& j
9 n5 m2 j' e% {- X( `- y
to do-business , ?0 w2 |) O" r T$ u) d* D
( p. C0 F4 v1 b
7 l- Z2 G# r1 K: ]# q$ z2 N& v9 Drt random 360
0 r5 z; }9 _) b* X
8 \6 \! b) I: Q9 {fd 1- `! A' U7 d# u1 a R
# q2 P2 w% B$ p5 a- F: b) P" }- B" k
ifelse(other turtles-here != nobody)[
! b1 @2 c& f- U8 U3 C4 a
, B; X6 a. A. Gset customer one-of other turtles-here. K# z, Y r! V' Y; W* Z
4 X% E/ [7 z2 G' G& i- S) |$ K- ~;; set [customer] of customer myself
9 a) O7 K$ h5 Y" z$ b+ E
6 |; l ?' R5 K. H0 W2 Lset [trade-record-one] of self item (([who] of customer) - 1)
0 z z: q7 y9 z/ F' f[trade-record-all]of self' [) ] S1 k7 D7 G: t
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self4 ], \ K2 Q& u" z5 R1 c
8 _2 a/ k, j$ _+ M4 {+ Uset [trade-record-one] of customer item (([who] of self) - 1)
" ?) l: K' n& O/ s0 ]% S" D- l, P[trade-record-all]of customer1 ?6 t- e# l8 q9 B U5 {, B( `
; @. h) }' |8 n6 C' I
set [trade-record-one-len] of self length [trade-record-one] of self
+ p4 \; z0 ~! x, p+ U2 f. L- A; {: U( l1 L1 o
set trade-record-current( list (timer) (random money-upper-limit))# F9 n, E6 |: g+ `3 e3 {
]6 Q) j& G$ e) l) Vask self [do-trust]
, j* x( z3 W: K2 r;;先求i对j的信任度
. [2 f- I* a3 x& N
; p- I3 ~7 F+ E8 h" Hif ([trust-ok] of self)
- `6 ~: q9 m0 [;;根据i对j的信任度来决定是否与j进行交易[
* L% y4 h e) N- \9 Iask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself. J; S2 @9 H, Q2 Q# E; N" q6 s
" a) O5 M" w- e1 c u5 E9 |1 l0 z
[
; U; x4 C" L* M# P+ |
5 ^6 a# i5 L2 `6 Edo-trade$ N& x8 X! R1 x( o/ k: x9 [, C
4 b$ C6 H$ g5 c; T: z
update-credibility-ijl
8 [9 S: J8 ?5 X% Y' o2 f5 }* m, C4 N0 {
update-credibility-list2 S$ Z6 ~! ~; y/ H3 r
" T, z! e$ @3 `4 _7 W
+ b" Z9 ^6 P1 m, h( o. M7 hupdate-global-reputation-list
( a3 k z [4 Y2 I* D5 E& l+ s4 y( u# s% a0 R5 ?! l
poll-class9 Z' e8 q& ]# @* \6 i" |8 g6 j) V& p
, j0 Q. P; M- H2 T; M' @: Bget-color
" d; d- [7 b; ~$ P" w) G0 X( I, U/ A9 i
]]4 _2 Y& ^7 v" ?
5 Z& E' M _. N4 P; D, D7 ]
;;如果所得的信任度满足条件,则进行交易
" R w4 Y8 l y) @- u. Q0 L6 x) H2 z3 h+ V5 @2 h! q
[
5 C# h+ H! C( B- ~6 P8 c4 _7 I l, i2 x# _; g3 s
rt random 360
( O2 Q0 |) ~6 w/ U8 d) u- A; U+ |' V/ V3 d" U+ v
fd 1
& Z: X: Y2 o6 b" p( y+ G: T4 ~) ~" c- `! U
]2 V6 {3 ~5 H ~
& `% Q$ |! x/ [# q) }
end
5 h! k& y& X* @" O" i; Q6 x1 b
9 F* G1 j3 Z% k$ w3 b m; Tto do-trust
* C* X) k! U& f; n7 I- Cset trust-ok False
' Z( `' L& A! V7 E9 n. F/ v, V: S
8 ~) E/ }( x# W* P b6 y3 M
4 x$ \' c& r0 r2 q/ ]4 r Nlet max-trade-times 0) w2 i% [ z% S; J7 Z4 w1 s+ s
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
; b2 k. H5 @( \0 \) A. J# H8 @8 Q* Nlet max-trade-money 0
1 {# E [6 {7 e) P( |foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]' I7 u4 L2 b$ c, m5 B" {- e2 {
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
) {0 m. K+ E2 v1 E+ l. K+ A: W3 _/ E/ v3 q3 {5 D; ?
+ p/ f# |# |4 t @' b9 {2 E" ^/ V3 @* t
get-global-proportion6 ` w5 S& _1 P
let trust-value% E# r" B" {2 N+ x8 K# D% k
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)
' s9 U3 Y! G+ x' N0 h vif(trust-value > trade-trust-value)
0 }2 Y9 n( k/ s9 v8 z) E, W/ w e[set trust-ok true]- {- a. r7 G2 _! o& ]6 e# G
end
# T* c1 c+ h2 f7 E {& t6 ~: {
% c8 I; A+ ?6 d: u" sto get-global-proportion
/ i( C5 _7 j `* Sifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
+ g9 V2 m% O7 ^. q[set global-proportion 0]5 \5 a2 i: I- n
[let i 0
+ `* B" Q n) }& O; |- f& N* A: p4 Ylet sum-money 0
$ K0 t! W' S, i4 [while[ i < people]
+ I8 ~8 x" ~0 x5 Q9 w[
1 K& ?% p$ A4 G5 Vif( length (item i4 Y3 o3 p0 k* L
[trade-record-all] of customer) > 3 )) A. m2 K5 E1 I3 q2 y# N7 M- _
[; ?. x) {+ ?" g$ F8 l J# ?
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
, n$ K: W% K9 h8 n7 I( B]
8 E5 Z1 p9 @& _5 B- a9 K]3 }, E* U. f6 X. Y9 a, f% L
let j 0; k `% ?- M0 c5 r+ Z; I. C0 T- U
let note 0# ]3 s# F- u8 A3 O' I
while[ j < people]
: v- E) j6 }2 @[& Y) @ ]4 K" \' H' l; e
if( length (item i2 Z2 R+ X6 a% M( C- a" }
[trade-record-all] of customer) > 3 )
* D* `" g9 A( }0 [ S5 W; r[9 \$ H9 W0 c- b1 x% i5 \ o
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
# l/ C$ C" M- A# j, {$ C! G[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
1 k" N. o# ]; W+ `, S2 ~[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
4 B+ {0 Q/ y2 c. o3 s]
# S! f2 w i% Z2 w$ a, V. f% h]" h! [9 H; c( h2 B; g
set global-proportion note( R; {: n3 L" e1 l* J8 { h
]! q- C6 `8 I* Z
end
6 {0 z% H; N0 Y1 ?% ]1 C D3 l/ C: z) S
to do-trade/ w0 g. L7 l% T5 q* Q: c% V0 m+ O
;;这个过程实际上是给双方作出评价的过程
3 K* X) `9 J: O; w! ?* R5 g/ oset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
# I7 C: G/ k6 t' [! b! O! k B2 Cset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
, E, [3 H+ j4 H# ?5 j, Pset trade-record-current lput(timer) trade-record-current
( i' W: i% _1 v( u$ d @;;评价时间
+ ?) O7 k. g6 p+ G& ^5 fask myself [
3 A7 p; v. w9 l/ _( c5 g$ mupdate-local-reputation' z( M2 o4 d- m9 _! _' e4 A
set trade-record-current lput([local-reputation] of myself) trade-record-current, P+ n# s& u" v; y- q/ h
]7 U; y& n/ L/ }1 z
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
& C! i, `# d+ Z7 b' I+ o;;将此次交易的记录加入到trade-record-one中: |4 ?7 s$ I$ S! \
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)4 r) f( q0 J- ?3 a, V1 m: T# Y+ n h
let note (item 2 trade-record-current )! c1 Q" V) q- t
set trade-record-current
* T6 v( ^! M; P(replace-item 2 trade-record-current (item 3 trade-record-current))
9 L2 E" e5 O( \* ?9 {set trade-record-current; D3 Q( [8 h8 p, {" D5 _
(replace-item 3 trade-record-current note). e9 T1 J: s; i/ A! D
+ Q$ y2 i, \" Z+ G5 q* C
. w" `& R. Q( K* ~9 X) S7 V7 Xask customer [
8 _% B; i8 o! I! ?update-local-reputation. X4 Q1 q% G* P+ H
set trade-record-current
7 X8 u3 C6 Z+ L, ](replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 5 i& H! ?% N& h) C/ e4 b( i8 ^ A
]3 [: s4 P, U" Z) K1 j, S+ G
9 X, q9 k2 _1 F9 I$ D& q4 d! M8 N( ~! U* K8 X* w% M
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
5 z3 a5 ~* H3 u+ G6 Z& {* |) |8 t: X" O
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
% v2 C* w+ p9 s0 ~5 V0 m6 y;;将此次交易的记录加入到customer的trade-record-all中5 }( T+ j" _4 \% ], v( r
end
' |7 M7 J! ]1 z8 U, o r/ C9 O: P7 ^& R! u
to update-local-reputation' k1 p# V H9 Z
set [trade-record-one-len] of myself length [trade-record-one] of myself8 h0 d+ Q( A- H5 f$ s1 ~9 ?
; _7 j# H, b/ z- B, f8 B3 y
, ]9 J/ R1 P3 \' O; P- ~, W& H
;;if [trade-record-one-len] of myself > 3
' }1 X% f$ L2 g+ W0 L% r) w fupdate-neighbor-total
0 s. w9 ~$ W I3 A2 o; c% s;;更新邻居节点的数目,在此进行2 o& g! n. n" \0 h" V$ T
let i 3: T- `9 K j% B0 I' z
let sum-time 0
6 A8 g: C0 h; Q% Q* X* K) L# lwhile[i < [trade-record-one-len] of myself]) f: {4 ?2 } F/ o' J3 k" r
[
6 i4 g+ k- Z: B9 H, ?0 ~" x% xset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ), P0 y! L4 _6 o( k' w+ _
set i4 ?& o9 z6 N2 r; a$ v' W
( i + 1)) ^; F4 K& l# F( ^
]
3 M% e8 E, @* S; H& [; A7 N( p% rlet j 3
8 u8 H& r- ^9 a- ?: j- w& klet sum-money 0
0 _$ o3 E4 ~% E) w3 M) fwhile[j < [trade-record-one-len] of myself]
7 O r3 r5 D, Q; |6 n8 u O+ g ][
8 {0 q; |5 i" l( e7 J. fset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
- X& r/ I2 L' a; J7 B Hset j. R% k k' z- N( | j0 k& j$ b( O9 T
( j + 1)
3 U P4 y# ]; G5 n]
( P: L8 ~. u% B5 k3 ?" ^let k 3& v$ M( g% v& G: A& F# o/ h
let power 0
4 S6 ~; G# Y; ]6 u0 Alet local 0
. n: x% x, ]: u# z7 _ A8 hwhile [k <[trade-record-one-len] of myself]& @0 ~8 T, y5 N" v
[9 d( N# k7 }0 `+ L; M: m
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) ) l: B6 o/ P7 t* d2 g# o
set k (k + 1)
( a8 \: O; t0 Y+ ?1 B]
; R; b2 r7 ^, U9 L* C- K1 |set [local-reputation] of myself (local)! c# {) G- Y9 L' ^+ j, j+ @
end
' z2 q( A2 h1 k+ N- w/ P; U8 \" _) V$ Z! j% d' A
to update-neighbor-total/ u! `# l0 i9 w1 U! u# {
) k* V5 b) P6 U1 c4 j# Kif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
3 }9 H" C5 ~* q
- `# A. A! A7 n
( y8 q7 }, t" L0 }% _; y+ _end$ h" M. E5 R$ {: a; c2 B! D5 W
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to update-credibility-ijl
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;;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。& ~* w, k6 P& Z; n
let l 0
+ @6 o2 q7 C0 B) vwhile[ l < people ]
7 t4 f, A5 ^6 [) }) _4 z( r l;;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
1 z( S! W/ O1 P; r/ n1 b# G) o[
9 u8 n+ M4 @. slet trade-record-one-j-l-len length item l ([trade-record-all] of customer)2 G6 g, T/ q" e- S( q
if (trade-record-one-j-l-len > 3)7 s- } W3 ]# C* L# [
[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
$ E' y" w: s }; u+ vlet i 3
) j; m% W& @9 w$ H( flet sum-time 0+ }- j9 A% x5 v3 D; g( |
while[i < trade-record-one-len]+ ]4 g/ N S! t' e2 h
[( ~5 p( ~! y0 t! j" b
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
' s$ O# v8 z+ Z: y b3 ~set i% q/ Q+ v1 i3 F) R" r9 k: J/ `
( i + 1); a2 ^: ^) E, x* F' k& Y# ~
]
1 P/ E) P' [0 F% B& [7 T) Nlet credibility-i-j-l 0
' n8 i( X5 c- t- r4 f;;i评价(j对jl的评价)4 u( a* c% V% y) @ E% m2 _, z
let j 37 U( G* J0 ?* l) }( W$ |
let k 4
6 J3 `2 S/ z- t7 J" Z0 ewhile[j < trade-record-one-len]6 Y* k$ P7 ~4 O
[
6 }9 U7 w9 Q9 l/ J* I2 kwhile [((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 l! D3 B( R/ A( ]
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)$ R) }5 U- g3 H7 @$ B# N8 e
set j5 H7 X. O) R/ R; T
( j + 1)# {* j. J5 X; L- Q5 g( q! Y4 a8 ?
]
; s: E: ? H4 g; z% x6 o Hset [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 ))
& |: U+ K& b5 a, u( r& k& s5 g1 \# q3 }- f+ `, F$ N
% [# K1 Q8 I6 e7 h' }4 glet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
" o" o& `5 M* a2 d/ y* x( c$ \;;及时更新i对l的评价质量的评价
4 [. E# x; b( V4 m6 h# t) zset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
: {# ~5 c/ T% t" ^set l (l + 1)
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end
p, M) e2 n* F
6 |8 |7 {7 c* D# @! tto update-credibility-list$ Z' u& `7 @& _* d E% N
let i 05 w( N/ f/ W) l8 G% M. Z0 J0 V% a
while[i < people]
& G6 R4 |, `$ ], y4 x3 U9 y% ?[- k u' V" V. h0 I( ~6 d
let j 07 D7 _$ Q3 a! {5 ]; `4 Y
let note 0; O# j' u. B7 S2 P9 ^; q3 A
let k 07 Z( D' D" H0 T/ J# O
;;计作出过评价的邻居节点的数目" q" }2 o+ a# @' ?
while[j < people]
# o2 l+ s# n5 _6 U; g/ g/ L[
3 v) g& M4 I3 j/ L! A: wif (item j( [credibility] of turtle (i + 1)) != -1)+ w" J* N; B! ~8 z
;;判断是否给本turtle的评价质量做出过评价的节点
) d2 `8 D9 h% { l[set note (note + item j ([credibility]of turtle (i + 1)))
3 p# m O# w0 b3 X% \;;*(exp (-(people - 2)))/(people - 2))]
1 ]6 u/ W4 k+ Z6 j3 n- u& ~5 nset k (k + 1)6 E; U9 `' d& u. h
]! S& `+ A. U! \9 K. c/ A
set j (j + 1)
?3 \* N ^3 v# n! h6 w4 T, P }]
e" @! T" w# E! B1 Qset note (note *(exp (- (1 / k)))/ k)+ b4 x) i; Z4 Y. Y4 R0 A
set credibility-list (replace-item i credibility-list note)* F7 ]. R/ J4 T6 b
set i (i + 1)
4 ~7 D% l. T1 Q], Y- |! ]) ^: f2 g+ D1 _
end+ p" ^7 N/ A; ^. P8 f. e" ^/ N
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to update-global-reputation-list/ N6 x) s% d! x+ w
let j 0
5 p( M: w% j6 i- C" w0 j9 Awhile[j < people]; q# [- L+ J! R1 {5 {2 x/ a2 @
[! H. Q( r- K6 T5 `
let new 0; x( n# A: b8 T& `8 z
;;暂存新的一个全局声誉
" p2 P% K7 c; |) W' C% L; W) plet i 0+ K4 A1 | Q, F: x0 O& k3 c: R
let sum-money 0
: X* I3 v3 O; I" [7 u2 ^1 Tlet credibility-money 0+ N% b/ V' a- n+ |
while [i < people]# r4 x) ^: G2 a: n7 N$ ^7 [! C/ P
[
2 Y5 _- Z) W6 B7 }( ^4 v' yset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
! K8 I1 K3 x) \3 Bset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
2 K9 @4 g: T( n1 eset i (i + 1)) f" g5 J5 ~: ] p4 |8 O4 G
]
% H! l' K' O/ f5 O/ s8 Mlet k 0
0 O4 Q* R1 R9 i9 x7 u3 x5 @9 Nlet new1 0: E, ]# n( M$ t& [, w$ w+ B) w
while [k < people]: ]% x2 ]- z/ ] \1 ^
[: {! n$ L$ J7 y5 D* n. I
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)
% h, l' ^0 y' _4 `4 yset k (k + 1)* m* Y( ?' I+ w- v1 b8 V
]9 n5 u' |0 E- c* x4 a
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) + F2 U& T0 F* n2 P1 R
set global-reputation-list (replace-item j global-reputation-list new)! C1 [. R. y9 ?5 h( C% f) W/ @( U
set j (j + 1)
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end
$ Z& P' b& u Z: c) I- L* C) f' U6 P- I6 p3 y3 f5 ~
; E8 B6 V; x6 Q$ I, }
$ D3 b/ f% b4 f+ W: @2 Yto get-color
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set color blue
1 `2 X: Q/ k" w7 C8 ~& {% C* ?end
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to poll-class3 ^ t7 ~+ [/ t8 x1 ~# z* P4 j3 b
end2 f) s# u" k: T
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to setup-plot1
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set-current-plot "Trends-of-Local-reputation"+ Q e3 t" [) J3 D) O3 J
* B$ ]' W0 D/ {- {+ Y5 a3 ^! Jset-plot-x-range 0 xmax: V( y3 v0 t$ f+ i! ?
, `8 w R; _* ]% `
set-plot-y-range 0.0 ymax; R0 x, ^. R3 x4 I
end. {2 h! w8 b! P$ S4 O# Q* O6 m- M
" j8 Q3 ^0 {% N
to setup-plot2* A6 D3 d. M2 }0 n, Q! ^. {! `
7 n' R% ^, k' A. ~
set-current-plot "Trends-of-global-reputation"4 N( i, |3 F |& P
9 v6 ]' @( \9 T* Rset-plot-x-range 0 xmax2 l+ n4 m# q4 e/ q8 P. C5 `
; g+ I1 O: l/ K1 c2 n* }! [7 ]0 ^
set-plot-y-range 0.0 ymax9 w* E" N! p6 ^1 \4 h! m
end
7 B. `7 A7 ~$ V% X/ O9 n* P C1 B/ {$ @
to setup-plot31 f' {( ?$ B0 g9 T# K2 u1 k S
* f( ~8 ]5 }3 ~7 k9 [3 x$ B
set-current-plot "Trends-of-credibility"
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set-plot-x-range 0 xmax
7 D3 ? l" t5 Z0 c$ p% Y1 |+ L% T5 L( L/ k6 A) W
set-plot-y-range 0.0 ymax% P4 S, b4 R4 P ~$ Y
end! O8 W9 B8 _& H7 @8 ^
- w% E X. \' I8 k7 i: Lto do-plots, g4 |" v0 U# Z) V2 E1 O
set-current-plot "Trends-of-Local-reputation"
3 C: F. O( j' t- @0 q& f) _set-current-plot-pen "Honest service", b/ |: P1 E5 r( e4 j c8 o
end
; N; W s/ N! ^" g
) V( e4 B7 K6 p; S* o# x# R[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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