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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
' W5 j# a, h' Rglobals[
* c" Y, q; H6 u$ Oxmax2 B5 \9 E7 H6 F5 R4 J8 V
ymax
2 ?; ]4 [4 O9 }, `, Y. Vglobal-reputation-list' @7 v5 e5 Y& x" D/ y( ]
( U3 Q+ S( k1 }: b+ P2 G* i, i
;;每一个turtle的全局声誉都存在此LIST中: H& b- S8 |- [& U- z5 ]. }% Z2 C9 E
credibility-list) k, {7 g2 p6 G% r" i
;;每一个turtle的评价可信度
- N+ |! o0 {" k! Ahonest-service$ ?/ _) z& {0 L& u3 K
unhonest-service2 S' r ?: g6 {
oscillation
2 d) i/ c! `2 X/ k7 b" }$ Frand-dynamic: L: \% E# q& j" E
]% B% e3 d) g/ w! i3 v9 X
) a; }0 {7 I2 F* o4 }turtles-own[
: I7 }$ Z& U/ \; M" L r" Ftrade-record-all, y& Q* Q) E* s3 m
;;a list of lists,由trade-record-one组成
5 ~* i A3 K- \- j5 N- M4 S* C& b# o! J' Ztrade-record-one
- j& f# m$ r. a3 |% D2 ?; `. h* s2 g;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
* ?7 B5 H/ F$ Q1 e7 q: {3 f9 i$ H0 V3 J! ^: V$ i. p1 R1 J
;;[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]]
3 e! B/ _# ?" P, \) O% x& etrade-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]
% K! I$ J% B$ u7 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
: W/ n* L- [$ ]! G0 q& f8 Mneighbor-total
1 u. W% G; `% f4 o+ {. U+ X# F;;记录该turtle的邻居节点的数目, D+ W Y" _% H$ S$ l) f
trade-time
0 t4 V+ a2 }1 A7 i0 S- g;;当前发生交易的turtle的交易时间
/ F7 A' z, U# w% I6 Aappraise-give% s$ l3 E) Z; L( \$ g/ H
;;当前发生交易时给出的评价
$ O y- w! k. X/ e# ^! K( yappraise-receive# z& L7 g, z! W8 O
;;当前发生交易时收到的评价
- `8 i* g- @5 _4 o2 V ^appraise-time
% r7 e v* O: p% j. E;;当前发生交易时的评价时间( Z' i1 q- o4 s0 q& I% p
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
" ?% b0 q C9 w5 z% ttrade-times-total8 k2 X4 E) d/ Z, j; M5 M
;;与当前turtle的交易总次数# t4 { D: ?3 h7 X8 [& I2 K
trade-money-total
- o& W' w, R/ `# o4 J& d;;与当前turtle的交易总金额
' o0 _! [/ q( F! a! w6 Z0 zlocal-reputation5 n, ^0 m. v4 A# q6 s
global-reputation# o7 ]7 _' y4 k4 b2 i% W0 @
credibility( z5 n6 J5 F( l9 v
;;评价可信度,每次交易后都需要更新9 B, J0 j: ~" [1 H7 O$ y: b
credibility-all5 i4 X. q0 u8 }6 k3 G. y' e8 J" ]7 A5 ]/ {
;;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
) ]+ M5 u' j/ v/ }- {0 |. b0 \$ f8 M7 y
;;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
0 T: z; O0 T0 a4 i' ^5 v6 wcredibility-one, z" n/ G( @) }* 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
* g6 B( }! x! L2 C* k9 {global-proportion
6 f" K, O! X. u; Pcustomer2 {9 @" E2 [* o% z' n6 @
customer-no6 k' R8 _% f5 Z. P" ~6 I0 `
trust-ok# ]0 D$ |2 v1 D7 ?& K5 X
trade-record-one-len;;trade-record-one的长度1 r: H2 Z) s: p
] e. u4 m. u( A* h/ _+ P8 L
4 ~8 g6 g4 U+ S9 \" T3 n/ Q! p
;;setup procedure
- s% V" G3 O& R B
4 e! e" m7 F- k* }$ s3 G* n! e/ Mto setup0 h! i0 Q, u) G! l# [
6 b2 ~! l6 b, r4 X
ca
) Y1 ^) z' U7 a' |0 O* h1 A( t2 V" z, d% T
initialize-settings ]8 J% l; u# ^6 ]
0 c# {: j2 c% J$ ^9 F# [) q n- qcrt people [setup-turtles]/ `7 |0 m4 ~& e
9 z p% r! g. O9 a+ }0 D
reset-timer% I3 U& h4 D4 ~( I. W+ M9 v
3 V5 t& ]- K5 e( [3 A
poll-class
8 K9 c! u" G/ R- {2 D. O6 n$ a* P6 V
- W5 s# _2 e- j1 Q9 Q/ Xsetup-plots
4 J& X7 x1 ~5 ^0 \) G1 l% h2 m: s( H% H
do-plots
& z! Y8 S* v8 I, R! _( Z& eend0 r) q N* R C9 r
2 M7 d4 G7 b- D9 f1 A6 l' j3 n
to initialize-settings
3 |* y0 }& T. I) q4 y2 j* }% A& T0 ?% `* ?/ t8 F
set global-reputation-list []3 S) i* I0 \+ y6 x% h% B
9 N( C4 G% E- i
set credibility-list n-values people [0.5]
0 g u: s; j8 i1 z! \3 v/ |9 v- u' A
set honest-service 0" o% T) u9 U' j. W' T8 p
8 Y X2 r* }# _! _3 rset unhonest-service 0! M- }6 ^9 ]! }! c& ^1 n
+ L2 J( Z" T9 a5 U, A
set oscillation 06 |- D! b7 Y# V/ L
, K: V) U% |: I4 A& @
set rand-dynamic 0
, [9 K& `+ k7 | `' |end
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to setup-turtles
" Q" g U- {2 E @& @set shape "person"* }2 \1 b8 M7 |. B! v
setxy random-xcor random-ycor0 n* D$ c, s0 G% R$ i
set trade-record-one []- Z) d8 D h% L
8 z; D: N6 E5 [- R
set trade-record-all n-values people [(list (? + 1) 0 0)]
) E* m- I5 o8 ?% D" H3 G& h7 }/ y$ Q# A. f0 ~1 q
set trade-record-current []
" D9 d, t* E+ lset credibility-receive [], d" k% e9 u6 T6 ^
set local-reputation 0.5
% J; ?$ |/ } L" I; sset neighbor-total 0
: L5 |" V1 \( f! e% x# q; Eset trade-times-total 0
+ r4 L8 } `# U. v8 r4 oset trade-money-total 0
& e! T8 c0 m7 c( u8 }5 iset customer nobody( |/ {4 ]' w9 d0 Z0 v
set credibility-all n-values people [creat-credibility]
1 N* [# r$ O1 X3 rset credibility n-values people [-1]
* p. Y, l' x: y: U4 B6 \get-color
4 T, I7 N, M$ }% Q* f# E
& s2 v+ d; s3 J# \& m: @end& e- x0 z- M8 w. P
: f9 A5 B, ^) Y, w: ~to-report creat-credibility
T' b9 |' g5 C1 i$ i3 x- H5 ureport n-values people [0.5], u# R# E) Q. y0 I4 _! g# @
end
3 |2 U3 z1 l5 ]9 g/ z- X
; f/ ?; ]2 A8 V( \- ?5 qto setup-plots/ y4 e' v5 I5 _; z3 e
7 J1 w8 j9 h- Y: o* L7 s
set xmax 303 U) Z. _: b( ]0 g( _* ~4 ^9 G
" ^& ?2 d. Z) K+ }, Z; @" z& m
set ymax 1.0 m$ u! O. v* A9 A
8 d' e9 k* M0 @0 ], X o8 q$ Eclear-all-plots8 W' `( A F( ?- d. Y0 `
- |' Q9 a% E( r! ]: m: p# L
setup-plot1) N& u" n4 m" F/ S( ~
; m) W9 q0 N% z$ esetup-plot23 w% O- \0 p3 x" G9 w9 X
9 C# C1 s$ H U a
setup-plot35 G P! e# i$ n9 a
end
9 w$ g E, J' w7 r! ~
) B+ D! B4 \+ e% ]( L- Y;;run time procedures
2 U- O8 {+ O# M( A5 S3 R8 _; b9 [
to go R; Q/ H/ G: @: [# j7 S
3 D; b1 f- }& k$ L: A
ask turtles [do-business]$ l% q4 v9 Y& y4 t/ c3 J( V, x
end- G" w. u8 p! I- P5 F
, F. C7 J/ T, @% ^to do-business 2 N( j4 O$ a, x- L" q' D6 H
* H* T; R5 @ L
0 v6 I4 q0 D2 a ?( g2 z
rt random 360
( a% N! y% o) c! `- ]" O7 p# |# ~/ ?9 Q, Y& b1 z
fd 17 e2 [+ m$ Y& b! A
" {: U/ b7 v* A1 X0 K
ifelse(other turtles-here != nobody)[+ y" @* i0 U5 Y
8 N- F- C2 u6 t; D2 ?
set customer one-of other turtles-here" Z) o4 c/ A: c$ u) o# \! Y+ ^
; W' z3 o8 |6 f9 u- _' L
;; set [customer] of customer myself
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# F1 i: D4 f- X' L& v' Tset [trade-record-one] of self item (([who] of customer) - 1)+ }* F: \8 V: N
[trade-record-all]of self3 a H+ H4 v& p! P
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
; X& i4 A4 h% L8 {" { C4 z4 G' w% c+ s9 [
set [trade-record-one] of customer item (([who] of self) - 1)
5 _, w% _, m/ L R[trade-record-all]of customer
2 ]1 V. ]) l% V. i. o& e5 N
& j. F9 t" T, h# e' sset [trade-record-one-len] of self length [trade-record-one] of self; z% B- X r- d
. J0 C ^; n) Xset trade-record-current( list (timer) (random money-upper-limit))+ Q9 c1 J# T, H! g: q
: i; A: U+ b/ l7 m+ Bask self [do-trust] ?% R1 t- t% ~+ f8 ]" O
;;先求i对j的信任度8 Z- L7 K( m/ h- O
; _1 T; L8 \, u6 dif ([trust-ok] of self)( ^) ]2 S* J9 i: v5 f- d
;;根据i对j的信任度来决定是否与j进行交易[
, j# v Z" N, L8 h# G/ M1 X6 m& oask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
/ a9 a) q6 C! ^8 E/ y4 k9 w" w8 e7 L) X4 P
[, ]- a9 j# _7 v( T1 J; R* o
3 w' o! S0 C1 k: E9 E; P4 Kdo-trade& y3 w$ I* B* f6 E% v
: J: o7 P% \7 v" p
update-credibility-ijl
) G1 }5 o- D5 H. o) |2 { \3 W. F0 |) w; U" M2 }
update-credibility-list/ A/ o' \3 T& W6 F0 L
- I2 C5 Z! y0 I: |) h8 i# s
% A1 s% g& X' M) w0 Cupdate-global-reputation-list/ L1 o! y, _/ E1 }/ u+ l
; r- q# g; B. }0 h* L: I. @poll-class
2 w0 U6 j4 ` F
* P, R( S2 T9 L Nget-color
- r# x( f% x- T0 ^" T- R7 F5 i3 X4 K6 p5 \
]]8 [2 V4 T- d9 A0 H. L" K
' v1 a% S6 C* X& K, T/ h;;如果所得的信任度满足条件,则进行交易* v8 X n! {0 [! k6 E
4 W9 ?, ]& m5 Y* w) _6 {4 u
[+ ~" V. a9 P4 f
0 z( h# \" o/ g1 n A
rt random 3600 k2 }5 K" Z8 V8 C. Z- J. U1 e3 {
: S. Y x/ ?& s7 K# A6 E
fd 1
; s2 r+ c, T% u4 k: l( u* p$ _0 F
3 _+ b/ `+ i9 v6 V]
: E; ^6 b* l6 g \, h# D3 c% |7 G) `
end
+ R) r6 h( [3 a7 f( q: ]$ n" C. ^( o- k. z2 Y; _
to do-trust
8 U. ]+ z$ O0 ?# l8 a( Y+ ~set trust-ok False
2 o2 B3 E$ c" N" W. }3 u; h Q. b% S2 O6 ]: S" `# p$ F* [# i, C
2 b/ y4 i* k" Plet max-trade-times 0% h0 {) H; T5 Z# ^# n" \
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
' r; a- h7 L& Llet max-trade-money 06 y1 [ j& h8 f7 p4 y" j' ^1 N
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
1 n# t3 n* }$ j' l0 ]; Glet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))2 d: s: F9 }" }# j$ R' T) d
* ]1 [8 F4 {8 V1 S1 N6 z$ \5 J6 i; Z% X( g
get-global-proportion
: Z$ L% r B! S( v' x jlet trust-value" \7 U% f! h, x3 H2 r1 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)5 W" j1 [% p" E( G% d
if(trust-value > trade-trust-value)
! |- y9 |) R9 K6 A) \[set trust-ok true]- D; H! z# \- w3 R
end1 C; `$ _, m7 R1 S t4 j
3 P+ _" k" @. l2 {& r e
to get-global-proportion3 J" S M" Q: S
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)3 v9 s7 G; ]: U3 n1 x, L3 Z0 R) l
[set global-proportion 0]
% r7 v" Y+ H) O1 @3 `/ R[let i 0
$ I, R% h& n7 ]6 Z$ zlet sum-money 0
, f2 i/ E. a# V) K. _! [while[ i < people]! b. h- J5 |* ^& H* U0 L
[0 g8 z; s: \5 x8 H% p( o
if( length (item i- ?- Z6 c a8 o$ B- A! _# O
[trade-record-all] of customer) > 3 )
6 g, ^/ n! L: w$ h[- w" R# h' e: \% b7 t F5 ?
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
% Y. g7 J. d$ t$ E @0 A]
* q1 q$ o& t$ w# j* q& J& m. P]
3 d% P$ _, Y" s0 alet j 0$ a3 w0 B: T, H4 ~: ]% C- E
let note 06 x% K; s4 y- n0 s9 O# W
while[ j < people]" W1 @" |' {* O$ z! Z9 h3 H3 }
[& V6 e, r! w0 v7 J5 C" {3 t: Y4 E
if( length (item i t$ E9 a I! N* [ F$ Z2 J
[trade-record-all] of customer) > 3 )
, r5 D! f2 K% k# x[
+ `# E+ H& `5 T$ i; {" y% X' Aifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
6 h! v% _! I7 o, d) p[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]+ I0 E2 O3 M) D) X& u! T5 f
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]/ m' z8 r. e$ H' Y! T; i
]
% ?# x7 k* x$ g+ G4 M% d]
8 g* D, z/ B" i8 D Xset global-proportion note
/ w3 b( v; a# W( C]0 q6 b5 B9 t1 `- C9 G
end
9 v' Q6 g4 j. F% I7 p
t3 ^3 w3 L- e. zto do-trade) k$ p. d9 K3 z" x
;;这个过程实际上是给双方作出评价的过程: V; i* D; [& N' U' p
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价: {' M/ e5 p+ s4 a$ k4 u
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价, j8 ?' K R3 x; x0 n) m+ \
set trade-record-current lput(timer) trade-record-current
1 g4 ]1 }1 [: y, ^;;评价时间; V! t4 z* b+ i4 l0 v! T0 u
ask myself [
$ ^5 l7 ?) A2 w0 a/ Aupdate-local-reputation8 w# V/ n# T" F6 B2 w$ h# c' y. \8 ~. v6 F
set trade-record-current lput([local-reputation] of myself) trade-record-current/ J# q. J# J, J1 M
]
/ u' B& R6 j/ i9 }4 Nset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
7 U6 Z# i: t% n: i;;将此次交易的记录加入到trade-record-one中' e; i, U- W2 C* m% M. u* c% M
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)- j: D# D. M5 \3 G. t, b% b
let note (item 2 trade-record-current ), g! c$ Z1 T" V1 l( K2 J- d- y* Q
set trade-record-current1 Z9 y$ m) Q5 f( T8 Y
(replace-item 2 trade-record-current (item 3 trade-record-current))
: W' e% g9 b# w1 p% kset trade-record-current
6 H. ~; V+ m" C4 g1 }8 z3 A(replace-item 3 trade-record-current note)8 x& P8 K. V7 ?/ O9 M5 \2 c/ a% K: u
$ F& u! ^/ g% W Z% O O
+ N+ T5 | Q2 k
ask customer [
4 S) g! m- T& y1 n, v3 Eupdate-local-reputation
" G% s+ R: L( s' `set trade-record-current
' t, l% L: a5 h, z/ N$ K4 ?(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) $ m/ M' {* o$ @. x8 K0 G3 ]2 N
]
1 O3 E8 o5 F" C) y1 H2 R. Q# t2 o: |! G
, C% f) C/ w9 f* Xset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
: `. E+ d$ l9 Z Z! Y. [% R; Z* X7 P- v7 [7 `
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))! x$ F$ g: c# d% d
;;将此次交易的记录加入到customer的trade-record-all中
8 {0 L% Z) K% v) eend" t0 [5 e3 g' L0 A, l1 `6 h
1 d; I, A7 h- N b6 Q, lto update-local-reputation( ]1 R' \6 b( f6 ]5 D1 J( W
set [trade-record-one-len] of myself length [trade-record-one] of myself
4 A& r/ Z) o! P" w; F# h7 T: P5 X E' P4 x
$ }) c) v4 H5 ?( A;;if [trade-record-one-len] of myself > 3
, ]) ~: m7 |! z8 S z- s3 Supdate-neighbor-total
3 k! C, {- U; n# f% t$ |6 V;;更新邻居节点的数目,在此进行
7 C$ k. J# c6 ~4 A% llet i 3
* q3 F1 R. e; D/ elet sum-time 04 }1 p0 e- Y: v( u$ n) O6 w
while[i < [trade-record-one-len] of myself]
r4 \# k0 t( u$ x+ _[6 k& y7 u7 J! k4 ~$ F
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )' r! H2 U0 A2 V9 z* g! G4 ? E L
set i
, r5 W4 L4 ?, {% @) }' h7 S7 E( i + 1)' G+ A( k$ f$ X1 |
]
+ B" z9 e" m9 @& x2 }9 f, ?' mlet j 3; }* a4 \ d2 p" @
let sum-money 0
/ g* ?# B Q0 ?9 b) wwhile[j < [trade-record-one-len] of myself]
; g& m! z9 E, G) P9 [1 Z0 _[
4 o2 v7 S) T X7 f/ L3 p) k) _3 Uset 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 Y8 z. N) ]8 j
set j
( |$ p) b- U) O1 B. _" }! {( j + 1)2 a ~! i B+ V
]
3 K i R" X& hlet k 3" R& A$ N% H3 N/ t" N8 D* O
let power 0
& Y Y' @* u/ `! n, ilet local 0
- T+ k1 O8 E- ?$ F+ T' iwhile [k <[trade-record-one-len] of myself]) H4 s5 X1 Q5 a6 }( l& s: V; q6 t
[3 j0 a. s+ I$ X! U1 N$ b
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) ) A" U5 a) R8 b1 r7 m- b( H
set k (k + 1)
( W# E$ ]$ M! t/ g7 F: \' r0 k]* K( Z% |& C0 B2 `
set [local-reputation] of myself (local) X' E) H; U2 v; ~5 Y- E {
end
9 Q/ P% x) Y( D3 u0 {1 S! z; ?. E" M6 Y3 J* |
to update-neighbor-total
) Z8 C) \( Y, R& x5 B$ K
~" x9 l6 |7 @6 z2 y$ nif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]% E: S# e) {: M, T. D. _8 D. |
7 o$ l. K. r' m8 C* Y0 {$ {
( ?! `9 \& ~/ I* L2 P! ~: k& xend
5 P* I* G/ t; K% H) v
) |# |4 A' v0 i' z* V9 eto update-credibility-ijl ) `- T1 R1 R; s- J' s# V
, O* ~* n/ Y; Q- K6 `
;;思路:每一次,当一个turtle发和另一个turtle成功发生交易作出了评价之后,就去搜索本次交易对象的邻居节点,对这些邻居节点的评价质量作出评价。! `! ?; W6 E: z2 [/ {
let l 0
1 Z& s" s6 }( @5 mwhile[ l < people ]2 b; s; J7 D$ m4 A
;;对j的邻居节点的trade-record进行扫描,以对j的邻居节点的评价质量进行评价1 ~5 q! N# S& f- ^- ]" o9 i0 G/ A
[
) m8 Z# X }; ^. y' E8 }let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
- u }1 A! p+ {if (trade-record-one-j-l-len > 3)
( N" {- o; v% x a6 Q" b* f. K- e) z[let trade-record-one-j-l item l ([trade-record-all] of customer);;暂存那个评价质量正在被评价的turtle j的与l的trade-record-one
8 e+ A Z' H3 v9 g( z( ilet i 3
/ E O+ ^. ^3 i. {9 p r1 ^- l% z- Mlet sum-time 0% g- G4 o- ]$ K, O
while[i < trade-record-one-len]
% L9 @8 r0 G/ _4 N[
4 A# M, Q0 i; Eset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
b: ?* C" t* V" e& hset i( K& V8 J, F2 l: U
( i + 1)
0 U/ y$ t6 S, z0 D9 `% r]
- S5 k9 a! W5 ?9 V0 Q; Q1 Olet credibility-i-j-l 02 v/ z5 \) y# i* k& X5 R
;;i评价(j对jl的评价)+ _' m1 {* }. L; q/ v% b8 A6 X/ j
let j 3
' w; |0 h7 u5 G: _let k 4. w; b8 M, z2 `) q) w: ]
while[j < trade-record-one-len] s( j' E7 A- S" I5 l) c! X4 o; B
[
* \ ~7 }/ a7 ]: _0 l# l1 Mwhile [((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' V) c- \* f: J5 n$ i# Tset 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 x6 h) a, X$ W* Gset j
0 N$ j9 u. j2 O4 {% Q% e( j + 1)$ e/ h. C# O) Y/ `5 H/ K0 Y( X4 d2 a
]
. f7 ^6 A D+ u: Uset [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- f. d3 {. {, m2 _; J8 n
. [3 U+ A+ {$ t- M) F
' Y: ?: a3 c2 ]8 _' m6 ~+ nlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
$ a$ s' }8 c3 v( d;;及时更新i对l的评价质量的评价1 V; d- V6 z2 E0 c! M4 @+ \8 u
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]% H* C: |" K1 g" S8 j
set l (l + 1)
7 o5 D. B4 A) r# T4 h]$ t I* W+ n6 @' P) z
end
& i2 \; E4 N p& K1 L' P ?7 n5 R% \7 q' o- r( |) T
to update-credibility-list
v H# s, H; S; I6 flet i 0$ g/ c7 F+ N8 [ h- n. a3 |. `
while[i < people]# M. W0 \* w. J# u
[6 ]" F# C9 [1 _, r- @1 W9 r( _: P
let j 0
?, e- N+ o1 g, ~: ^let note 07 A, T. V* a4 D* y$ G
let k 0# \" y9 G4 A* x
;;计作出过评价的邻居节点的数目
$ X1 w5 T* d. y9 o' Cwhile[j < people]
' x& o# v1 M! ]4 A1 Q# E# \, c[
. A. r; R2 t$ ]& S9 \& y* Jif (item j( [credibility] of turtle (i + 1)) != -1). N+ p- p+ o1 e2 s
;;判断是否给本turtle的评价质量做出过评价的节点8 { c+ j' w' k
[set note (note + item j ([credibility]of turtle (i + 1)))3 V( p$ e. i- U) b
;;*(exp (-(people - 2)))/(people - 2))]
. E; Y3 F' L% b8 J9 \9 q! l! |set k (k + 1)
" z4 R3 K* M2 y8 d& g' K+ `9 J]
. M/ I5 P. n& c; ^; v( ?set j (j + 1)2 b1 W+ y$ T- c6 }, c8 i
]
5 t2 m) s. B2 A2 v! a( lset note (note *(exp (- (1 / k)))/ k)7 o$ \9 A& e$ }" E
set credibility-list (replace-item i credibility-list note)
1 E. W, Z0 g6 Q& n& ?* N) Pset i (i + 1)
2 _' b( E( G; Z* f- n) A& v W]3 c! V9 Y* B& T6 s
end
^) Z! d$ E1 G n$ Q
- P% ^) s! U6 L4 P! f3 _to update-global-reputation-list# _" ]. S. P, T
let j 0
, d6 \/ R/ @2 r0 Pwhile[j < people]3 {' p. Q8 Y3 v7 G3 o# G
[- ?3 b9 h: `6 U( \+ \0 y% L. [! p
let new 0
0 q1 `9 S, |5 e$ D& K;;暂存新的一个全局声誉+ a+ t0 I+ N/ s# f5 a5 \9 @% |
let i 02 A( |7 X, t+ Z5 B
let sum-money 0
4 ~8 t- Z c& ?8 J1 T7 J& U0 Clet credibility-money 0* |! @/ D7 s" o# {" A9 R) _' p* Y% b
while [i < people]7 y1 d% t' J- j' w; G. B
[
- | H% `! ?/ ^" H* y/ q4 N& K- ~* Qset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
; f& r1 ]& X5 `0 O& T0 mset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))5 r4 O a# E! t' K9 y4 V4 L
set i (i + 1)
3 c, h- d" M" \$ U! Y]
2 P) W& d' }) q- ?4 Flet k 01 P) Z) z4 {6 V9 _/ S3 Z& H
let new1 0
* l8 w7 {5 j. ~6 x& P3 U( ~while [k < people]
% `8 W5 f; q7 W+ Y4 |! a. G! V* n[5 j, ^9 k7 ^# |1 B- |5 C. Z, p
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)
& D# \* r2 s) s6 P0 {set k (k + 1)' B) D( E1 Y2 Q5 h
]
. E) E D5 D; j) v: ?2 iset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 8 E3 M# j# r2 V: X9 ]
set global-reputation-list (replace-item j global-reputation-list new)
) q$ ~1 w3 ]" X' p/ P! Uset j (j + 1)
/ B, {( _$ K) t/ X7 o8 ]]
5 h6 ]* z0 N- U; S1 v" iend8 k" |6 W3 ?8 b
3 \5 N+ p9 L6 s1 i) |6 C3 `8 v
# n5 @ u5 y; J. `. l
) X6 G, Z0 U9 A5 {/ l# V& m1 Sto get-color3 O; P @; I6 M$ W5 v7 y
9 o4 R9 n! O% |1 V
set color blue
" m; E, G( D1 c$ i8 ^. tend
1 ]" j! C- i, T- l" y
3 ~% p/ B& C' K4 W+ Dto poll-class0 P3 v8 ^8 L* m& r
end
- R' s. ?7 [. I4 H! Y. b
1 L, O- b2 Y+ I& D" Q; \8 Bto setup-plot1/ g9 C, f2 G1 c( F
! V# w: Y% b4 A$ _set-current-plot "Trends-of-Local-reputation"9 @" z9 ~; D( ?3 b" m
8 q! t( X: H9 Y6 T/ f# Eset-plot-x-range 0 xmax7 \- e- Y& m5 r2 z, A! V. m
+ ^1 o M; W+ c7 Y8 @
set-plot-y-range 0.0 ymax
. e5 }; B+ @, Zend
$ g# J+ |# A* U! }6 G# z4 `" S- {6 q( v' k; E/ x- _8 z
to setup-plot2
. l4 [: r, ?: u& g$ X( {
0 ?3 U- r7 x& H8 P9 fset-current-plot "Trends-of-global-reputation"8 b) _4 C: M+ u1 y
D8 W" E# l0 ^, g sset-plot-x-range 0 xmax
' B1 `7 T+ N: R- T( l# {6 q% C, N# {: [& N$ c7 H
set-plot-y-range 0.0 ymax
# d; F1 ~( h R$ }& r, cend
) ~4 h7 n. x- A) |! g+ K+ Q; ^! W
to setup-plot3
& D1 Y% c. \6 U; R8 ^
# p- E9 G& g/ s: \set-current-plot "Trends-of-credibility"7 T t! `" d4 o+ y( s
+ ^ J Y- z5 a4 t4 [2 c; }set-plot-x-range 0 xmax v+ H$ G. s3 K0 i- C2 k" f
: Z: A9 Z4 [/ g# I# l. P
set-plot-y-range 0.0 ymax9 ~) E- o: T" M# V
end
" h# O/ P S& H- u9 D8 z$ ~+ O' j2 s
to do-plots
8 Q% U( r# K# @9 n$ _3 J8 cset-current-plot "Trends-of-Local-reputation"
" O, \9 A! Q6 G* S9 Lset-current-plot-pen "Honest service": `$ z( F4 b/ c# \$ X
end
- [8 m% e% r) X9 f7 j9 Q1 U- l% d" u
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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