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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 C; Y! O9 K, Y9 D9 ?' ]# \
globals[
1 Q7 o9 b9 T( nxmax
8 S" M1 V. R; e- a6 W# _ymax
) @! G3 X* w J( a$ ~' `. Q% Oglobal-reputation-list: d: [) r# c, V( \! _6 O, N
* w$ v8 M; }* ^9 P4 a;;每一个turtle的全局声誉都存在此LIST中6 G$ V# F* Q- X+ z! o( i$ ~1 C5 u
credibility-list8 w- D1 q9 R0 m6 z4 F1 H
;;每一个turtle的评价可信度9 D( t1 K6 `* d. q7 u
honest-service; }3 U+ ?8 `4 D% m
unhonest-service
% F5 i2 {6 s# C$ {oscillation: [$ Z0 F% q* ^0 |* O: z/ b
rand-dynamic
$ k$ q& L8 F* l" R1 J) E]
$ T/ {& u7 w* A7 @% b c2 M3 ~3 |: T, G: h
turtles-own[
4 r/ e; L+ l8 S% L1 D/ Xtrade-record-all( j1 I+ z" I' q' X8 f' |" @
;;a list of lists,由trade-record-one组成' W5 P2 A! A/ r8 c2 ]
trade-record-one5 E" U. S8 Q$ n" E: b% ]
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录) w2 e2 b, \: t
$ Z% l: m- [6 A% z5 e- L
;;[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]]
! |, o7 H1 z, ltrade-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]
0 V0 T R; S% p+ ~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list
& T( f+ D& X- ?- v& z- `/ q" ~neighbor-total& K/ D4 U F9 K! x8 Q
;;记录该turtle的邻居节点的数目
: U& @" F) }0 P; @; Dtrade-time
) m! J9 L, i4 m5 V# m' l; x;;当前发生交易的turtle的交易时间# k9 D' Z0 S' U4 }
appraise-give+ B+ }5 o% a8 e3 y5 b6 E# N
;;当前发生交易时给出的评价
5 }9 Y$ l7 u2 ~4 j. fappraise-receive, z) z m; |+ x: i
;;当前发生交易时收到的评价
# n9 W" U3 p( n( \appraise-time
; L/ K8 w7 z/ n T& p1 m;;当前发生交易时的评价时间6 S; B* x L* W5 w; U/ z2 }) Z) E+ U
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
( N! q* e6 H2 T2 X( i+ G4 D& b6 F2 ctrade-times-total' T) Q6 O. |/ P
;;与当前turtle的交易总次数
$ d$ n5 g- K) p: s6 x" Ntrade-money-total
: q8 l1 }* \, b1 t2 v" \;;与当前turtle的交易总金额4 ?. z$ t& M' I! P. }2 y. |$ a
local-reputation8 n) b# Q; W5 G9 k) I( ]
global-reputation6 z- C. q9 Q6 r6 C5 G$ k& Y: S
credibility
9 E0 B5 V- m+ q) I2 n;;评价可信度,每次交易后都需要更新
( u( H3 {; i9 ?, O0 \credibility-all: R4 o2 B" l _5 O' X! d! r" p4 q
;;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
( f% |" K T# u. }6 [7 S- o0 J4 q- h+ T) ^ r/ v
;;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# E: ^* ^6 z$ r& ~' r6 v1 Wcredibility-one# \3 W$ N4 J4 M. S [
;;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2 v! c2 @$ X8 F8 U& G# b* `) ?
global-proportion$ D6 C, C- R- I
customer) n7 D. @+ z% g) {
customer-no5 g9 y* b# T5 T1 r, D g
trust-ok6 V @6 f0 K2 f8 G
trade-record-one-len;;trade-record-one的长度* K4 b- J3 x. p
]8 v! m, D1 ]% Z9 z
3 ^7 V6 t9 g+ z( X7 K
;;setup procedure: F9 K. m$ |7 j2 W, U% m4 a8 u
/ m; O( O5 ^2 W+ Z5 o+ w* Hto setup$ W; g+ {4 L. U/ X7 i- v/ _
' w6 x/ g) G6 f
ca
8 b# l R# V+ I' j8 T6 L' f3 j; w' _$ |1 s
initialize-settings
% [6 V9 d& g* }6 p9 b$ R/ n& [! Q( J5 b* o' K9 J) h7 d+ @
crt people [setup-turtles]
% U/ I9 ?0 d" O8 r D
" H# \) S0 w; L; K( Oreset-timer' N! l8 c) u! Q. | P
, Q8 w9 w: C" p ?* ^- E3 Npoll-class
& v. }" H9 S& m
5 o8 }7 p' ]4 r. b1 Tsetup-plots
) O! n7 ^0 D8 Y* i% C
8 f! \$ [( g5 X( Tdo-plots
5 w0 \4 y1 h* w0 t7 e4 U0 S) cend( ~9 z) q3 Z, x: R# _$ ^* ~: m% ~; K# H
' [& G# {! d& h/ N& c. e, @! N
to initialize-settings4 {" e- R& E5 P
' M$ o- f# g" q' M
set global-reputation-list []; t2 v3 O f+ a4 a/ a* `9 X
' V# w8 K% z8 Q! |4 lset credibility-list n-values people [0.5]) B% m( Y; I$ j! I3 f" I3 V/ F
' e o) E& b2 e8 t( uset honest-service 0
b& [0 t2 V9 n4 M1 ?2 Q! Z& n1 V0 a& q/ n0 n2 X" U+ C
set unhonest-service 0
) C% p8 q' ]( c* I' ^/ y' a5 c" w) @9 U0 |5 L
set oscillation 0
9 Y7 ~# U; u' c2 P/ |4 G* u
q' H5 p. J2 B: T6 N9 N6 U1 nset rand-dynamic 0
& ~% L3 _0 ]. \3 ]9 uend* S; \8 [" v3 q: r3 H; f
9 Z- N* A( J1 P2 r, i4 U4 f& x
to setup-turtles ; ~) P. u/ s4 R; X! O: a: E
set shape "person"
7 G! l( i3 G h$ wsetxy random-xcor random-ycor) f/ c2 r0 k; V7 A- z$ S+ d4 L
set trade-record-one []
% ~* h' K4 _6 y* N* _* y& M0 a8 j( w. G' S) l3 b2 i0 x* F
set trade-record-all n-values people [(list (? + 1) 0 0)]
v- Q) ^( N% b8 Q8 H6 s4 p* }( K* R; ]
set trade-record-current []
* }3 P+ R8 Q* yset credibility-receive []5 `. ^8 t; Y6 |4 [7 }
set local-reputation 0.5
' I" t! U2 ?! n- Z ]set neighbor-total 0
# w6 t9 |& H W: ]* ]set trade-times-total 0
' o) C* G4 z+ g9 Vset trade-money-total 0. Z2 q) b: z8 i7 \
set customer nobody! A: H+ M: N4 i- f7 E; r1 h
set credibility-all n-values people [creat-credibility]
8 J9 |& [! J4 f' ^( F- w/ lset credibility n-values people [-1]$ ] S* f+ F+ r: E9 e7 ]- u. d
get-color, I' `6 T4 ]* {/ q5 W, ^" H
5 S5 f, \# L/ J6 i6 Q) wend- B/ S3 n3 O, l+ t0 T
+ i' j7 c8 _- lto-report creat-credibility
O+ a) w( |9 a! Z; \! R8 kreport n-values people [0.5]
8 v2 ^6 k3 A/ X5 o9 Rend
- B* ?% K _+ C, Y5 s
0 I! M" u: Z- G7 ^: ]) cto setup-plots9 ~. v0 K1 Y+ y$ P
9 |7 ]- j0 L5 S# U, r$ g0 p9 D
set xmax 30
8 ^8 e! E6 ^* P7 R* L% F0 i7 [6 e
4 Q3 _! F# E4 U) ]set ymax 1.0: `0 ?) m. I( k% O
5 I! A5 _ V5 r
clear-all-plots
1 Z8 }1 m% k/ B9 Z0 h
4 B2 f3 u- n& Y7 |9 csetup-plot18 r2 P; ?: f* B( @
" N! S' b/ U5 R. Jsetup-plot2
* `6 T U; e: M' f! T' D
+ l) t4 j, x& W1 l: _; A! esetup-plot3
. i. B2 z5 {' S8 |4 ]# zend
! M5 G& h0 i( N- L9 o; I1 y& K8 U. I4 G/ [$ Q1 z! S+ ?7 g
;;run time procedures
0 Q0 x0 Z* v. c- Z, Z5 }
. N8 z2 t8 h0 x/ V2 nto go
0 @8 b* b$ p0 i$ L1 l0 c# X: `
" V2 d5 ^! Q/ x; M9 W, ?% n/ vask turtles [do-business]# V8 J" T3 C( U, k% F- h
end5 U) D$ F" ?( p3 w0 Y
% z3 e# N: x3 h ^3 z4 V
to do-business
- e& w- m8 K. @2 N. u- O/ t3 ]9 V+ D: u! c! y
* e+ E9 ?+ o0 [
rt random 360* z7 H n5 q, ]0 J% V& |6 t
. u6 Q/ ]9 Q$ G
fd 14 p: \9 u0 X# b# F
+ g2 X d/ r$ _& w" Mifelse(other turtles-here != nobody)[
* y; p+ H4 o) {
9 W/ `, [* d3 H- k# rset customer one-of other turtles-here5 m; U" T, z0 }8 J ?1 A- k1 V8 [% c
q/ _9 O# }7 M: D b& r$ Q& u;; set [customer] of customer myself
( v( k3 @- p7 d6 _7 L0 `; A2 l7 [
2 ?. m4 a2 W6 J" b" i0 oset [trade-record-one] of self item (([who] of customer) - 1)
2 x8 s6 Q+ T- m |, {[trade-record-all]of self# I |& F9 c+ k# q8 W
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
/ d8 q9 v5 o: P" u+ v* o0 Q% Q6 r! p! P0 O+ {* |) h6 t
set [trade-record-one] of customer item (([who] of self) - 1)
1 L1 u0 q% P. T i3 Q- a[trade-record-all]of customer% N) w" t) G7 a) Y* o
3 }3 U4 j# g. hset [trade-record-one-len] of self length [trade-record-one] of self3 |5 s; _' U3 T. `, O3 B
) L5 b4 O) b" Z0 i' ]
set trade-record-current( list (timer) (random money-upper-limit))+ G R' r. A* O+ q& p2 s
4 d/ Y- c& e, k* x) s7 A! s
ask self [do-trust] c1 @) Z3 Q, B
;;先求i对j的信任度2 z2 ]% t5 Y/ s
6 K) F1 F0 @# B Tif ([trust-ok] of self)7 v# V" |1 E! c6 M7 K2 o
;;根据i对j的信任度来决定是否与j进行交易[
6 N: Z, E) }4 o7 F4 c, x' ~% rask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself- d H5 c) F% D9 E. Z# G
1 a8 _) ]/ _+ F6 o/ W) O
[( w9 K4 n! `' A5 N
" B1 @( ~; B% s) [0 H7 zdo-trade
9 o; x- F \. i4 n6 }. A9 K0 n' o* L0 U# b
update-credibility-ijl) f4 }' t! G4 ?3 w6 r
# {1 z' ^8 C6 H- nupdate-credibility-list
) `+ w$ i/ T- s4 [' t" d: a& k
8 H8 M3 z7 }: \ A0 r6 f) L# u+ t* `
6 A& E0 F$ y9 t1 ^4 |update-global-reputation-list& U* W: [. A! G/ e4 }
6 z& o* t, A/ j5 `poll-class
9 j% Z3 Q' y, w) m$ ?3 ?* B& U7 ]/ \& w$ R! P P6 E3 g8 m) `& r, a
get-color J+ f2 d" n) r2 p, m8 e
) D, H( j- J% ]: [- w]]
! m$ B/ ~# \, E- m
. W! K$ I- s3 q0 [; T;;如果所得的信任度满足条件,则进行交易
2 t. H) Z7 q. B A0 R/ m$ @, [
+ n/ a/ r4 C1 P1 ?5 }[- n. w# P6 |4 }4 Y" K k7 J
3 }& O! L2 J" Q8 _rt random 360
7 g$ P+ w" i8 ^9 v2 j' l' }
: Z6 E. }. A% D# H1 B7 Mfd 15 ]4 n( N& ]* O- Z% `+ X8 B4 ]/ Y
9 r1 d, |7 x6 N6 q5 I4 x* B
]9 c* x2 K3 ~: W d* a& q" l
' Q, l N Q1 P6 O3 gend
7 l' Z3 M( @- l& W5 ]0 J- x& Q, m3 c9 w4 ]
to do-trust
. T* c7 N. V! l' x6 _! F: o( ^set trust-ok False
: Y. r8 L* r3 j, f. m7 X7 A4 E- O4 X4 Y2 q5 r
& l5 Z9 A+ H6 u9 C& Y; zlet max-trade-times 07 m( E" c9 d2 [) {: {; p: p
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
, m @9 p: {/ I5 }let max-trade-money 0
7 Q; a5 n& O$ y/ J4 n6 \foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]2 p- }# L- H, {
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))) J4 |% N! K+ e
J# u9 A" U3 K( r9 y0 O. @/ C2 j$ Y/ x, {
get-global-proportion' |6 B9 F4 `/ z. r% j
let trust-value
8 N4 ?1 J6 n2 Z% alocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
- K7 ~$ a- n' o& a1 i) bif(trust-value > trade-trust-value)& M- ?4 z, h! k# A3 r; g q: o* o
[set trust-ok true]' _1 ~3 O+ C! k1 s% ~8 n
end- @2 @- j( H3 j3 y
) M# I$ h1 d6 |% H4 L& Ato get-global-proportion) m* Y3 O" ^* e: m, t* [
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
- N& U; {0 `; q2 o[set global-proportion 0]
, q; Q/ f. a( P6 ^% u$ P1 v$ o9 u$ [[let i 0
! b+ k0 x+ D9 `% {" x) @ mlet sum-money 0+ y7 \& H6 ~! W8 @6 U1 P- T* K @5 `
while[ i < people]% T2 a/ F5 q( A5 f# V
[
! A, u5 ^( a9 O: d# w8 xif( length (item i
5 S1 N/ ]' |" B* l& w: G+ O[trade-record-all] of customer) > 3 ), I/ @- v' D8 F' q. O$ U `& Y
[
( V) i. [8 s4 g. [set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
. D8 V: G4 s# n4 {]) Z3 L! |; c3 W
]/ A; D/ `* M9 r- n# \
let j 09 ?4 U5 t8 ]! w: F! |1 t, E; v
let note 0
/ ?0 X- S- J) f) X$ Z+ v7 Y. Kwhile[ j < people]
# O, `# b/ f/ H, }2 \[$ ^9 X: c X# I9 V3 v( F
if( length (item i2 c& g. j" ^& B/ N1 i/ p
[trade-record-all] of customer) > 3 ), P9 M ^8 Z/ i) F% z; y: A
[
# A; |1 I$ ^/ J/ v( k5 l1 ~ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)) x6 p( k2 I* Y4 v6 ]
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
8 B- p" V1 }8 \. r0 Z* o8 M[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
2 N# s. D6 x$ |1 @$ E4 }3 o, O+ |/ {]2 Z! M' v3 Z5 T8 N3 `
]
$ T( p4 X- q! h8 ?' Vset global-proportion note- b, w6 O) J8 v
]
u {& H" I$ P$ ?# U. ]! ?# Aend S6 a# H* ?* I9 H) Z) H3 O6 P+ o
* b8 V- I. _8 d$ Oto do-trade
) R7 g6 R% D" s: @;;这个过程实际上是给双方作出评价的过程
1 Z5 A& y! @$ N0 ^1 J/ B4 B4 `$ rset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
" r& g4 r) c( ^" E* Y! |set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
6 g9 U8 K8 f. I2 x. j2 ?4 H- n# @5 Pset trade-record-current lput(timer) trade-record-current
* T$ _, p# w6 o$ _- t8 _;;评价时间1 S; X3 `3 A2 {/ ?
ask myself [6 b' c: i0 R& i7 k" @6 W
update-local-reputation# l i. I3 U6 J& z
set trade-record-current lput([local-reputation] of myself) trade-record-current3 I3 k" X; w9 }, u: K% ~
]
7 Z% X; L* A! Gset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself6 C7 k; X6 b# t8 d, V
;;将此次交易的记录加入到trade-record-one中
1 Y" j: G' i2 R$ aset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself) \& F+ C) r. d5 r1 J" I% A' O7 O
let note (item 2 trade-record-current )
s9 t5 @# C6 o' Jset trade-record-current
. `6 B" g$ d& G5 Y(replace-item 2 trade-record-current (item 3 trade-record-current))% Q. F2 r: K! |! {& P- B0 W5 y
set trade-record-current
9 \9 E5 m7 @& i(replace-item 3 trade-record-current note)
$ j+ ]" K6 G1 a8 K8 K
7 r) u& r i: V9 M
2 R2 R- |1 |; Q @- C& gask customer [0 p, H5 O, ?# _6 b- F, T" i- N
update-local-reputation
7 J3 k/ n- K# E" qset trade-record-current6 `3 _) x$ r& D; } r9 H& t( B
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 7 E ^$ s0 t0 E. v* y1 Q) r
]
+ }1 O" v" j" |8 S1 N% s' [ ^3 {
{" i% `1 q* f7 z+ o1 c. {' Q% b9 `2 l$ b6 o0 H
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer5 r4 t# a5 ~4 L- p3 f5 O- }9 H
: R' i& a9 j! ]1 l) b
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))8 @0 `8 k, H! Z) J) t9 K" S
;;将此次交易的记录加入到customer的trade-record-all中
7 L* l P" D9 ~7 R2 Dend
0 E, ~( q: |3 P& r' c1 a1 K& a& R" l) d9 u" o
to update-local-reputation
9 }" s5 c8 Z2 ^, z# qset [trade-record-one-len] of myself length [trade-record-one] of myself
# t2 [1 z+ t r' Q
2 [3 v! w* W l1 j2 U
2 N N' [2 p% t2 e6 C! S1 F;;if [trade-record-one-len] of myself > 3
3 Z* E8 e4 ^2 o; m' Z5 b, jupdate-neighbor-total6 e, \8 J5 Z# E' B
;;更新邻居节点的数目,在此进行# _" H, ~1 [! F" Y% ` }& t
let i 3! K' M7 U G0 f# }: B
let sum-time 0+ U, X+ }4 a. O- n- ?
while[i < [trade-record-one-len] of myself]
+ x1 u7 M3 o& c7 v" D[0 s5 z$ w+ c( r! [7 L
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )' P1 G: m9 ?1 O# l# Q
set i `0 k7 Q6 Z$ B+ `# D
( i + 1)
* |( a9 S6 t/ _5 r]0 B8 E; ^) P, G; y6 ^- W& y+ \
let j 3
) y* U$ L( R1 H' m4 k, Nlet sum-money 0
% f, Y- m" y4 rwhile[j < [trade-record-one-len] of myself]7 H6 E' v# o- X0 T8 r; C( m, \, T
[
/ T+ n2 W+ n. h2 R+ v! J: @& Qset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)/ ?2 L7 ?6 z" O7 g% M# o- G
set j
# K1 P7 V* x* _( j + 1)
+ o% y% l" C5 `]
: b' q" m( {. G4 Y- Qlet k 3- j/ v+ L/ [4 m. k# H
let power 0- c8 C% s3 e( [) b: X$ j& B
let local 0
9 B+ B! a4 K' I& twhile [k <[trade-record-one-len] of myself]6 W7 W, q; V3 q' Z7 h* w
[% D& M5 O4 H+ u
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)
$ J. G: C( \5 j& e$ v( Tset k (k + 1)
! S, h, j2 _5 o]1 y8 A" i0 M+ W$ h: X, g
set [local-reputation] of myself (local)
1 n+ Q4 \) f d& |end6 b% G1 D- w3 B0 c+ D5 M
9 @; Z$ d* ]2 P P' e" \5 G
to update-neighbor-total
- n7 F" L* r- t/ V7 i
2 m0 ^% O; p/ L& |, Qif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
& N, ^) U1 R* i8 V2 e# Z) N& c, s6 u% F, X+ q: Z6 i \% C& K
) u) ~# s$ P' {$ g% W! ^end
! O7 h, w7 h! U4 r8 v9 K% I& I' ]
" J2 K' L& ]7 P8 R- hto update-credibility-ijl
( X: D3 j3 ^5 d0 [4 f% A \! }
! V9 Q# S L6 x;;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。
# p# ^# U- A5 [# u O1 S9 ?let l 0+ S5 u/ u7 x5 I, O% b
while[ l < people ]
# ], T6 j. |+ Z% ~$ 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$ ]/ d4 m: h0 q; W
[! S1 f3 W& o- i7 u9 e
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
' B" {0 J$ B9 b( E" F' G/ O4 ]if (trade-record-one-j-l-len > 3)
- _* P% C9 a0 i) {( r[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
# v) {5 A7 b* s4 Olet i 3
0 j$ \4 {8 }4 ?! O! L0 G i+ Ylet sum-time 0! p6 _3 _3 V# q! }; Y8 P7 f
while[i < trade-record-one-len] Q$ x4 G% M6 d) ~. `
[! f. C* s7 x- K# [0 D
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
& ^/ _: T( p" K' w+ q5 @( y# Vset i0 Q3 i$ u/ c' l9 E5 N6 x
( i + 1)
# Q9 H' |5 f" x) []
: D; R4 @& G, ?) @5 o$ @: U+ Hlet credibility-i-j-l 0
g9 E7 _0 _) t9 G7 k7 e# I* F;;i评价(j对jl的评价)
1 n4 c" ?$ s" }3 }4 @1 xlet j 31 O5 z1 A' S& k& c& \3 _4 `7 f
let k 4
7 b1 n3 `: N( H; K5 {4 {while[j < trade-record-one-len]
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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8 L1 B, y& V! M- F
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)
* ]: u$ r: `% K/ a2 [/ Y2 Oset j/ H3 j6 E" H- W4 n8 v3 |7 o
( j + 1)
1 `. I( G+ J0 W4 S$ G! o* Q7 h4 K, S]4 l e7 c- Q6 s( @" ?
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 )). F" ?8 f# N" ^& q
; E1 S+ u- J0 C& J+ \$ X! m
3 ?. p" r- Q S9 b* c5 B7 Llet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
/ g- g d9 j; B/ Q;;及时更新i对l的评价质量的评价% E, v6 \1 r+ c- u! l
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
( p' w( \) b$ u0 r) ?8 Nset l (l + 1)5 e4 |2 F; X5 r, J5 T$ S& Y
]
. ~ z% M( p$ v7 nend# Z5 ^3 R; T! D F6 e
. b# W% B0 N$ n( p9 S1 G8 uto update-credibility-list; z* F! x5 S& t) {
let i 0
' M; a# U/ x# m) `1 T1 Kwhile[i < people]
2 F' [; f+ h0 m& n& t[2 Q, x$ T9 P+ ]
let j 0
9 C9 c H) l* mlet note 0. k1 T/ x- H- J( T
let k 0% P. p" A1 @) \
;;计作出过评价的邻居节点的数目% q, `5 ] u5 _8 P
while[j < people]
& c& u$ N1 }) r- k[
# e. a; g6 o2 f, {3 K/ Pif (item j( [credibility] of turtle (i + 1)) != -1)6 A$ [. _" l4 D- v2 t+ V
;;判断是否给本turtle的评价质量做出过评价的节点. t3 C% D, ^& D5 U" Q; d& N! g% _
[set note (note + item j ([credibility]of turtle (i + 1)))
! h/ x, K9 L" Z4 c* f+ B" l/ s;;*(exp (-(people - 2)))/(people - 2))]( i+ n4 m0 e8 u. P3 L3 _" z9 ?/ _% L
set k (k + 1)9 e% v! r% G j+ H/ A0 C& u
]
" G9 X$ }, P1 J2 p& D- [set j (j + 1)6 Q/ w) P$ ?0 l# ?# ?
]
$ V+ S! i' d1 {8 qset note (note *(exp (- (1 / k)))/ k)' r0 _3 E* S' ]) ~& V( z0 z" P
set credibility-list (replace-item i credibility-list note)
- h+ {& |, P+ `4 n& @; Z: [set i (i + 1)
& U8 x% H' g/ w) l]! U( Y$ Z# w! N; y! p
end$ o# ]+ `) `7 ^* r
6 C/ V# g$ w) |* Q1 C6 ]to update-global-reputation-list
8 P- H; U6 k8 ]let j 0
0 ~3 s) d p( H! |$ uwhile[j < people]3 r, x. m. G4 s6 S
[
; J8 t% i# \6 L3 w7 b0 N) Vlet new 0% C7 c6 a; Q* R$ ?% c& S" {! U8 J
;;暂存新的一个全局声誉
( d7 V8 T! ?; ~- X1 G; M( glet i 0 Q' U" ~4 G( ?
let sum-money 09 J( B! |2 Y0 g2 y; {' Z! L
let credibility-money 06 s6 f) }2 O3 {) ?6 K5 e
while [i < people]/ `# u k: }. U, u( |
[. s; h9 B e6 v% Z8 z
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))! R% a% h- x& A) G% {0 _# Q6 Q
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))! F: U* p& Z/ g' F1 G9 ?$ R1 w
set i (i + 1)8 l+ q6 F6 ~0 \9 U9 w
]
$ i6 t3 }4 ?% C$ E2 H7 t, c9 u3 Qlet k 0, R) Y2 T% U1 X7 ~
let new1 0
! Z+ h. o4 }( v: F6 O( F! S2 M+ \while [k < people]
7 |8 a0 Z2 G8 E* \[
6 o% D# J: `6 \ v0 q+ oset 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): b7 Q. [1 i! a- _& Z
set k (k + 1)
- D2 v+ T6 v# C2 F" R& N3 _]
7 p4 v' u* }9 Z. o9 h- p/ _set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) + H2 T0 o, z( r5 |+ D( r
set global-reputation-list (replace-item j global-reputation-list new)
: ?5 w3 P# s$ c/ S' ^0 B& pset j (j + 1)4 Q: P7 j: @- ^, J" r2 F1 L
]
) u) L2 F5 I4 U# I. n) Dend* K6 o. Z: T) p% u$ w
3 }( X! n8 X7 C$ u
1 W0 E N$ o) U. G
. J( r9 ^9 }; Lto get-color- Q# u8 B4 M6 b
0 F6 E/ {! r/ N/ e/ l0 g7 p% jset color blue$ I: I9 |/ j6 c
end6 l3 p' ^2 }. f3 D" S
+ x$ N% T! a! D2 w% H* ?
to poll-class* l. r) e7 r" @% Z+ b8 G
end4 z! Y6 j8 b) W. | r% ]* w
- {5 b# \; L) H, P. W
to setup-plot1
; x2 S3 D3 V1 M
$ d4 {* B) \2 b2 K5 q5 Q. mset-current-plot "Trends-of-Local-reputation"
# Q+ M1 j: h0 I. h$ ~+ Q8 i/ W. g# U* Q5 e% {* J$ R, G3 }
set-plot-x-range 0 xmax
; y. R7 S! ?" B: W$ U
, N/ C; l9 z6 }- Oset-plot-y-range 0.0 ymax
5 K2 g. w) P# P( }! V# z# Q4 O2 t% Kend
- b. A i1 n% W6 n: O9 y( `' Q0 F! K
* m' p8 F f' _* ~/ o' z" l+ wto setup-plot2
4 u* D& a6 u- q0 d9 p# ]( ~$ O) R0 ^4 f [0 A9 Y2 Y, }# G
set-current-plot "Trends-of-global-reputation". m' i- R0 I. u
+ g p1 g9 d6 O* |- _
set-plot-x-range 0 xmax
8 J4 _6 i" `! K2 Q& B# [6 t! {5 C( i. P& }* O! ?
set-plot-y-range 0.0 ymax' P( q/ W. A7 Z! X D
end9 e6 N, d$ Z) v6 P6 x/ k' v
) i- \( }% k U. a, ^- dto setup-plot3! ]0 q4 [( j9 }5 T6 W& b: F
. V6 y& W( C* [% _( K7 t4 c
set-current-plot "Trends-of-credibility"' F' }- X# P+ } }5 G" E2 [1 E
+ i! V* u( w* n4 ~set-plot-x-range 0 xmax
* O' s/ G! O& z# K! ^+ X3 n4 r& a9 j) F0 C5 ~) i; s' S
set-plot-y-range 0.0 ymax
$ G- `' f% r6 h9 R& x2 h" o7 Y( tend U. e* x# x9 H- x' i# [4 O# `2 d
% L/ v( b: l R( m9 Dto do-plots
& X. b( y- i2 R# k3 f" |/ o' d8 L9 ?set-current-plot "Trends-of-Local-reputation"
2 ?8 ^* x- C; j0 ]set-current-plot-pen "Honest service"
4 u) v7 W" ?: G' _+ Wend2 B& P6 v, M5 t
0 J Q( H' s1 E* u# ][ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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