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主题 : 英语论文写作常用经典句型
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楼主  发表于: 2007-11-10   

英语论文写作常用经典句型

英语论文写作常用经典句型 %LMpErZO  
k)n b<JW|r  
k\#;  
Beginning ,~d0R4)  
1. In this paper, we focus on the need for 5j`xSG  
2. This paper proceeds as follow. }d?;kt  
3. The structure of the paper is as follows. H]/ ~ #a  
4. In this paper, we shall first briefly introduce fuzzy sets and related @-)?uYw:r  
concepts P?h1nxm`'  
5. To begin with we will provide a brief background on the py'vD3Q  
Introduction ^Lgvey%  
1. This will be followed by a description of the fuzzy nature of the l/G +X j4M  
problem and a detailed presentation of how the required TRm#H $  
membership functions are defined. d%8n   
2. Details on xx and xx are discussed in later sections. dBXiLrEbs  
3. In the next section, after a statement of the basic problem, various 72s qt5C]  
situations involving possibility knowledge are investigated: first, an ~b~Tq  
entirely possibility model is proposed; then the cases of a fuzzy WoZU} T-  
service time with stochastic arrivals and non-fuzzy service rule is d~u=,@FK  
studied; lastly, fuzzy service rule are considered. 0zH-g  
Review i=xh;yb|  
1. This review is followed by an introduction. D m0)%#  
2. A brief summary of some of the relevant concepts in xxx and xxx is 5IF5R#  
presented in Section 2. iM<$ n2t  
3. In the next section, a brief review of the .... is given. . }\8Y=  
4. In the next section, a short review of ... is given with special regard unFRfec{  
to ... a}%f +`z  
5. Section 2 reviews relevant research related to xx. K KB+o)*W  
6. Section 1.1 briefly surveys the motivation for a methodology of ,JZ>)(@)  
action, while 1.2 looks at the difficulties posed by the complexity of +F)-n2Bi  
systems and outlines the need for development of possibility =5\*Zh1  
methods. V$ H(a`!  
Body ,'s }g, L  
1. Section 1 defines the notion of robustness, and argues for its -P;0<j@6k5  
v.(dOIrX  
importance. n2K1X!E$  
2. Section 1 devoted to the basic aspects of the FLC decision-making fd )v{OC  
logic. (mIjG)4t  
3. Section 2 gives the background of the problem which includes xxx vIRT$W' O}  
4. Section 2 discusses some problems with and approaches to, tB4mhX|\  
natural language understanding. "- =fi 'D  
5. Section 2 explains how flexibility which often ... can be expressed g!XC5*}  
in terms of fuzzy time-window F^.A~{&L  
6. Section 3 discusses the aspects of fuzzy set theory that are used in 6M >@DRZ'|  
the ... ]Ucw&B* @  
7. Section 3 describes the system itself in a general way, including "Pwa}{  
the ….. and also discusses how to evaluate system performance. C-y MWr  
8. Section 3 describes a new measure of xx. Rge>20uTl$  
9. Section 3 demonstrates the use of fuzzy possibility theory in the N (4H}2  
analysis of xx. %+l95Dv1  
10. Section 3 is a fine description of fuzzy formulation of human p3A9 <g  
decision. 3Z?ornS  
11. Section 3 is developed to the modeling and processing of fuzzy osXEzr(  
decision rules i%FC lMF  
12. The main idea of the FLC is described in Section 3 while Section 4 2K9X (th1  
describes the xx strategies. _Q1p_sdg  
13. Section 3 and 4 show experimental studies for verifying the xq((]5P y  
proposed model. un 5r9  
14. Section 4 discusses a previous fuzzy set-based approach to cost [h'u@%N|/  
variance investigation. F%6wdM W  
15. Section 4 gives a specific example of xxx. O.+J%],  
16. Section 4 is the experimental study to make a fuzzy model of 9E  ^!i  
memory process. .aT@'a{F  
17. Section 4 contains a discussion of the implication of the results of ;<M}ZL@m  
Section 2 and 3. DO(};R%=  
18. Section 4 applies this fuzzy measure to the analysis of xx and q KD  
illustrate its use on experimental data. _3aE]\O[  
19. Section 5 presents the primary results of the paper: a fuzzy set 4;AF\De  
model .. Br!;Ac&N  
r,JQR)l0@V  
20. Section 5 contains some conclusions plus some ideas for further DT`HS/~fH  
work. Ye3o}G9z  
21. Section 6 illustrates the model with an example. ~pZ0B#K J  
22. Various ways of justification and the reasons for their choice are sbmtx/%U  
discussed very briefly in Section 2. D U\ytD`u  
23. In Section 2 are presented the block diagram expression of a n}UJ - \$  
whole model >+J}m o=*  
of human DM system ee? d ?:L  
24. In Section 2 we shall list a collection of basic assumptions which 684& H8  
a ... scheme must satisfy. sm`c9[E  
25. In Section 2 of this paper, we present representation and {rcN_N%  
uniqueness theorems for the fundamental measurement of fuzziness $sY'=S  
when the domain of discourse is order-dense. `o{ Z;-OF  
26. In Section 3, we describe the preliminary results of an empirical ~-k , $J?7  
study &9flNoNR9  
currently in progress to verify the measurement model and to )pl5nu#<  
construct membership functions. 2 H%lN`  
27. In Section 5 is analyzed the inference process through the two "d)Yq Q  
kinds of inference experiments... b\0>uU  
This Section fx|d"VF[  
1. In this section, the characteristics and environment under which :6(\:  
MRP is designed are described. lNxP  
2. We will provide in this section basic terminologies and notations [ iTP:8  
which are necessary for the understanding of subsequent results. OM1Z}%J  
Next Section d3q%[[@  
2. The next section describes the mathematics that goes into the <<01@Q <  
computer implementation of such fuzzy logic statements. EK4%4<"  
3. However, it is cumbersome for this purpose and in practical o6A$)m5V  
applications the formulae were rearranged and simplified as %w^* 7Oi  
discussed in the next section. zH~P-MqC  
4. The three components will be described in the next two section, +r!NR?^m  
and an example of xx analysis of a computer information system will oZ*?Uh*  
_{`Z?lt  
then illustrate their use. UWO3sZpU  
5. We can interpret the results of Experiments I and II as in the 4tm%F\Izy  
following sections. fJ8>nOh  
6. The next section summarizes the method in a from that is useful 9KX% O-'  
for arguments based on xx `F/R:!v  
Summary kS_#8 I  
1. This paper concludes with a discussion of future research pG"wQ  
consideration in section 5. ke2dQ^kc4  
2. Section 5 summarizes the results of this investigation. iYBc4'X  
3. Section 5 gives the conclusions and future directions of research. )yyH_Ax2  
4. Section 7 provides a summary and a discussion of some extensions vQCb?+X&  
of the paper. u)Kiwa  
5. Finally, conclusions and future work are summarized iN8[^,2H|  
6. The basic questions posed above are then discussed and )!0}<_2  
conclusions are drawn. K W&muD  
7. Section 7 is the conclusion of the paper. ynw(wSH=  
Chapter 0. Abstract Lx>[`QT  
1. A basic problem in the design of xx is presented by the choice of a ez32k[eV!  
xx rate for the measurement of experimental variables. $B?8\>_?  
2. This paper examines a new measure of xx in xx based on fuzzy c<Cf|W  
mathematics which overcomes the difficulties found in other xx lwfS$7^P  
measures. BDf M4  
3. This paper describes a system for the analysis of the xx. K/B$1+O  
4. The method involves the construction of xx from fuzzy relations. X~& 8^?  
5. The procedure is useful in analyzing how groups reach a decision. h;vY=r-  
6. The technique used is to employ a newly developed and versatile CN(-Jd.b  
xx algorithm. Psf'^42(v  
7. The usefulness of xx is also considered. (<_kq;XtN0  
8. A brief methodology used in xx is discussed. 'AK '(cZ  
9. The analysis is useful in xx and xx problem. Ws5N|g  
10. A model is developed for a xx analysis using fuzzy matrices. f|(9+~K/7&  
11. Algorithms to combine these estimates and produce a xx are I(7 GVYM  
jY\z+lW6A  
presented and justified. t0fgG/f'  
12. The use of the method is discussed and an example is given. %r.OV_04  
13. Results of an experimental applications of this xx analysis F(.`@OO  
procedure are given to illustrate the proposed technique. R\ 8[6H  
14. This paper analyses problems in 8y5"X"U  
15. This paper outlines the functions carried out by ... |BM#rfQ  
16. This paper includes an illustration of the ... Lk]|;F-2i  
17. This paper provides an overview and information useful for Y$XzZ>VW  
approaching JtY$AP$  
18. Emphasis is placed on the construction of a criterion function by 7]Qxt%7/>  
which the xx in achieving a hierarchical system of objectives are M/Z$?nd_H  
evaluated. W=EcbH9/.)  
19. The main emphasis is placed on the problem of xx {hN\=_6*EW  
20. Our proposed model is verified through experimental study. |APOTQV  
21. The experimental results reveal interesting examples of fuzzy Q3& ?28  
phases of: xx, xx lIEZ=CEmY  
22. The compatibility of a project in terms of cost, and xx are likewise cQLPgE0  
represented by linguistic variables. q&[G^9  
23. A didactic example is included to illustrate the computational (rJ-S"^u  
procedure >0:3CpO*  
Chapter 1. Introduction n~ $S  
Time IAkQR0fcN  
1. Over the course of the past 30 years, .. has emerged form intuitive y|B HSc3  
2. Technological revolutions have recently hit the industrial world p q?# X0  
3. The advent of ... systems for has had a significant impact on the jTqJ(M}L  
4. The development of ... is explored rtJ@D2Hj^  
5. During the past decade, the theory of fuzzy sets has developed in a h `! 4`eI  
variety of directions gA_oJW4_  
6.The concept of xx was investigated quite intensively in recent years !7~4`D c6U  
7. There has been a turning point in ... methodology in accordance 20 $Tky_  
with the advent of ... c)Ef]E\  
8. A major concern in ... today is to continue to improve... =>>Dnp  
9. A xx is a latecomer in the part representation arena. lMW6D0^  
i@P= *lLD  
10. At the time of this writing, there is still no standard way of xx xzz@Wc^_  
11. Although a lot of effort is being spent on improving these `ba<eT':  
weaknesses, the efficient and effective method has yet to be $=>:pQbBVX  
developed. gjK: a@{  
12. The pioneer work can be traced to xx [1965]. d72( g$F  
13. To date, none of the methods developed is perfect and all are far dUn]aS  
from ready to be used in commercial systems. *3RD\.jPX  
Objective / Goal / Purpose M{u7Ef  
1. The purpose of the inference engine can be outlined as follows: |1!|SarM{B  
2. The ultimate goal of the xx system is to allow the non-experts to lr)MySsu#H  
utilize the existing knowledge in the area of manual handling of loads, 4u|6^ wu.I  
and to provide intelligent, computer-aided instruction for xxx. FDFVhcr  
3. The paper concerns the development of a xx } -hH2  
4. The scope of this research lies in S)2Uoj  
5. The main theme of the paper is the application of rule-based o'P[uB/  
decision making. Y\1&  Uk  
6. These objectives are to be met with such thoroughness and }LIf]Y K  
confidence as to permit ... 8fWnKWbbjw  
7. The objectives of the ... operations study are as follows: nM$-L.dG  
8. The primary purpose/consideration/objective of ac4dIW{$3  
9. The ultimate goal of this concept is to provide qP%[ nY  
10. The main objective of such a ... system is to |>I4(''}  
11. The aim of this paper is to provide methods to construct such eLN(NSPoS  
probability distribution. V3pn@ 'pr  
12. In order to achieve these objectives, an xx must meet the !G ~\9  
following requirements: !Nhq)i  
13. In order to take advantage of their similarity |TBKsx8  
14. more research is still required before final goal of ... can be i6h0_q8 >  
completed | -AR)Smt  
15. In this trial, the objective is to generate... '&xRb*  
16. for the sake of concentrating on ... research issues oP<E)  
17. A major goal of this report is to extend the utilization of a recently o648 xUP  
developed procedure for the xx. @2$iFZq~  
5th\_n}N2/  
18. For an illustrative purpose, four well-known OR problems are T^ah'WmNw  
studied in presence of fuzzy data: xx. Vuo 8[h>  
19. A major thrust of the paper is to discuss approaches and iuq%Q\0@w  
strategies for structuring ..methods o{QPW  
20. This illustration points out the need to specify ;,_c1x/F  
21. The ultimate goal is both descriptive and prescriptive. &4l >_  
22. Chapter 2. Literature Review gI~jf- w  
23. A wealth of information is to be found in the statistics literature, {~d8_%:b  
for example, regarding xx QVrMrm+vRv  
24. A considerable amount of research has been done .. during the bPdbKi{j@  
last decade ViT$]Nv  
25. A great number of studies report on the treatment of 80ms7 B  
uncertainties associated with xx. 4mzWNr>fb  
26. There is considerable amount of literature on planning =i)k@w_(x  
27. However, these studies do not provide much attention to ddD $ 4+  
uncertainty in xx. 5zBsulRt  
28. Since then, the subject has been extensively explored and it is vl}uHdeP9  
still under investigation as well in methodological aspects as in "&/&v  
concrete applications. (yel  
29. Many research studies have been carried out on this topic. N^. !l_  
30. Problem of xx draws recently more and more attention of system D~Y 3\KP  
analysis. 0TI+6u  
31. Attempts to resolve this dilemma have resulted in the 4RqOg1  
development of ^dR5fAS  
32. Many complex processes unfortunately, do not yield to this i'%: z]hp9  
design procedure and have, therefore, not yet been automated. B6b {hsO  
33. Most of the methods developed so far are deterministic and /or ?9801Da#/  
probabilistic in nature. $u9y H Z  
34. The central issue in all these studies is to m+Yj"RMx&  
35. The problem of xx has been studied by other investigators, \TrhJ  
however, these studies have been based upon classical statistical ZIx,?E+eJ  
approaches. bgm$<;`U  
36. Applied ... techniques to eID"&SSU  
37. Characterized the ... system as F3b[L^Km]  
g<Sa{<0  
38. Developed an algorithm to eRa1eR gP  
39. Developed a system called ... which Au,}5=+`P  
40. Uses an iterative algorithm to deduce ~J6c1jG  
41. Emphasized the need to HzT"{N9  
42. Identifies six key issues surrounding high technology mYN|)QVKy  
43. A comprehensive study of the... has been undertaken zTP3JOe(  
44. Much work has been reported recently in these filed ;ePmN|rq;  
45. Proposed/Presented/State that/Described/Illustrated/ dQt*/]{q  
Indicated/Has shown / showed/Address/Highlights CBTa9|57  
46. Point out that the problem of 8_ns^6XK5p  
47. A study on ...was done / developed by [] kG+CT  
48. Previous work, such as [] and [], deal only with b#.hw2?a`  
49. The approach taken by [] is G)?O!(_  
50. The system developed by [] consists J%;TK6  
51. A paper relevant to this research was published by [] XWbe|K!e  
52. []'s model requires consideration of... UPPDs"  
53. []' model draws attention to evolution in human development pWB)N7x&  
54. []'s model focuses on... R{+ Rvk  
55. Little research has been conducted in applying ... to fdzD6K ZI  
56. The published information that is relevant to this research... v. ,C"^W  
57. This study further shows that 'UT 4x9&z  
58. Their work is based on the principle of HlY4%M5q/  
59. More history of ... can be found in xx et al. [1979]. /H,!7!6>?  
60. Studies have been completed to established >GgX-SZ%  
61. The ...studies indicated that BJk\p.BVN  
62. Though application of xx in the filed of xx has proliferated in g{f1JTJ7  
recent years, effort in analyzing xx, especially xx, is lacking. ![:S~x1  
Problem / Issue / Question oyJ/Oe {  
63. Unfortunately, real-world engineering problems such as zpIl'/ i  
manufacturing planning do not fit well with this narrowly defined 2anx]QV4  
model. They tend to span broad activities and require consideration W==HV0n  
of multiple aspects. co<){5zOT  
64. Remedy / solve / alleviate these problems )AqM?FE4R  
67. ... is a difficult problem, yet to be adequately resolved *6q8kQsz^1  
Wb!%_1dER  
68. Two major problems have yet to be addressed Y+V*$73`  
69. An unanswered question netKt_  
70. This problem in essence involves using x to obtain a solution. ]^&DEj{  
71. An additional research issue to be tackled is .... hn.9j"  
72. Some important issues in developing a ... system are discussed N*lq)@smq  
73. The three prime issues can be summarized: (OYR, [*  
74. The situation leads to the problem of how to determine the ... >;HbD p  
75. There have been many attempts to LlRvm/  
76. It is expected to be serious barrier to ,<|EoravH  
77. It offers a simple solution in a limited domain for a complex nPfVZGt  
problem. //e.p6"8h  
1. There are several ways to get around this problem. |>A1J:  
2. As difficult as it seems to be, xx is by no means new. @*q\$Eg}2  
3. The problem is to recognize xx from a design representation. 8S@ ~^D  
4. A xx problem can trace its roots to xx. ~0|~ Fg  
5. xx [1987] used a heuristic approach to simplify the complexity of _"a(vfl#  
the problem. 8 :$kFy\A'  
6. Several problems are associated with them. M$%aX,nk'  
7. Although some progress has been made in this area, at least two 0UWLs_k:  
major obstacles must be overcome before a fully automated system .+ai dWd  
can be realized. /Rx%}~x/m  
8. Most problems in practice are complicated y$*Tbzp  
9. More problem surface here. /%Rz`}  
10. Hamper effort toward a xx system -YA1Uk  
11. In order to overcome the limitations due to incomplete and ,, ]y 8P  
imprecise xx knowledge, a xx program has been developed, which *ta|,  
bases its knowledge upon the statistical analysis of a sample z:RwCd1\  
population of xx \KLWOj%  
12. The above difficulties are real challenges faced by researchers Bu>srX9f  
attempting to develop Z?XE~6aP>  
13. This type of mapping raises no controversy to the issue of 4eBM/i  
membership function determination. A37Z;/H~k  
14. However, attempts to quantify the xx have met both theoretical ]8d]nftY  
and empirical problems. Nypa,_9}  
FFR_1Vf  
15. It has become apparent that in order to apply this new ,Ztj  
methodological framework to real-world problems and data, we have 2!7wGXm~U  
to pay attention to the problems of xx and xx. /]F3t]FlC  
Chapter 3. Proposed methodology `Kpn@Xg  
Assumption opte)=]J  
1. In the case when the assumption of a xx seems to be too rm+|xvZ4  
restrictive or inadequate, the formulation with Fuzzy termination !j%vUe;t  
time, i.e. given by a fuzzy set in the space of control stages, may be 8g(%6 ET  
applied. ,D+pGxbr   
2. We assume here the fuzzy constraints to be state-dependent, and s$ &:F4=?  
the fuzzy goal to be the same for all the control states, xx, which "CT'^d+  
stems from the problem's nature. Iy8Ehwejd  
3. An approach to the solution of this problem is presented under the rzLpVpTaz  
assumption that the sampling rate Decision can be made prior to the $;@^coz9U  
execution of the experiment, as opposed to being made while the vtCt6M  
experiment is in progress. <^ @1wg  
4. Another assumption made above is that there are precise odds at 9,`WQ+OI  
which the expert is indifferent. @4sv(HyDY  
5. Main simplifying assumptions are: s34{\/'D+  
6. This, in our view, is a questionable assumption. HP:e e+n  
Outline / Structure / Module ] RN&s  
1. An outline of the research P"XF|*^U  
2. Information is incorporated within the scheme rNO'0Ck=  
3. Is built into ... structure Q\<C9%a  
4. A nice modular structure. :~~}|E u  
5. The principles of ... are applied as modularized criteria W[AX?  
Classification d2Z5HFtY  
1. A xx system comprises three main components: g`d5OHvO o  
2. Must decompose the original .. into a set of .. =;l .<{<VH  
3. Consists of the following steps: ]EnB`g(4;  
4. This is summarized in the following steps: r.lH@}i%n  
D\}^<HW  
5. Can be broadly classified into the following areas: &-:ZM0Fl  
6. Can be characterized by its function of effectively processing the f< =<:+  
7. Can allow further breadth of application of ...into more |cEJRs@B  
8. The following steps should be followed ^vn8s~#  
9. xx can be classified by a different ways. }TzMWdT  
10. Based on the xx, one may classify xx into the following: lG I1LUo  
11. This catalog may change due to wear, breakage, and purchasing. IlVz 5#R  
System B5GT^DaT  
1. Unlike many conventional program, expert systems do not f*,jhJ_I  
usually deal with problem for which there is clearly a right or wrong $5yH(Z[[  
answer. '- oS=OrZ  
2. The system consists of both ... and ... Dt%G v0  
3. The system has a hierarchical modular architecture organized on c@wSv2o$  
three levels. Hbu8gqu  
4. expert system domains are area of expertise {;4Y5kj  
5. To develop a xx system for xx, the following factors must be IFcxyp  
considered: N: ?UA  
6. The system has been developed / designed to determine K1>X%f^  
7. The system has proven to be able to P x{ Cvc  
8. The domain in which an expert system operates is a particular H .*:+  
domain 7?!A~Seo|  
9. The system comprises a ... with m?'H 7cFR  
10. The system is [feature-oriented ] / based on the ... technique 7r;7'X5  
11. The system environment must be relatively stable @ x_.  
12. The system is utilized to generate, load, store, update and ^0)Mc"&{  
retrieve ... QK%N t  
13. The development of a xx system has two stages: xx stage and xx Uc%n{ a-a  
stage. !~Vo'ykwx'  
14. The most essential part of .. system is the ... POvxZU  
15. The successful developments in ESs have made them an x93h{K f  
important tool in the development of P 4Vi~zMX  
16. An automated system was developed for rQmDpoy=  
17. In this case, the system can be considered to be generative. KYE)#<V}@  
_gU:!:}  
18. An interactive automatic ... system i7 $4i|  
19. A …. is commonly thought of as a truly integrated .. system nhV\<  
20. Should be capable of being generated from a ... system >QyJRMY  
21. xx is an important part of the integrated system. paKur%2u  
22. The model consists of four rule bases, each of which addresses a L\0;)eJ#M  
separate problem in the hierarchy of scheduling decision. w>#{Nl7gz  
23. The rule bases are linked to each other in a chin-like manner in )/HbmtXqI  
the sense that the consequent of one rule base constitutes a part of "/e_[_j  
the antecedent of the next rule base. jfmHc(fX4  
24. The rule base consists of all possible combinations of the  +kA>^  
linguistic terms associated with the linguistic variable of the #(@!:f1  
antecedent of a rule. !8g419Yg  
Computer System 6HroKu  
1. The system has been implemented using Prolog language in an C@x\ZG5rA  
MS-DOS environment. Prolog was chosen because it offers a well jej.!f:H  
known and flexible environment in which fuzzy reasoning may be @JW HG1qJ  
easily implemented. &f=O`*I'+!  
2. The current version of the xx program when compiled with bG0 |+k3O  
WATFOR77 results in an executable code of about 270K bytes. 1G}f83yR  
Typical run time, when run on a XX computer (an IBM compatible TWzlF>4N  
machine) operating at 4.77 Mhz with 640K RAM, ranges from 10 min zH"a>+st=  
to 2h, depending on the size (or complexity) of the problem. R*[X. H  
3. Time consuming procedures have been implemented in In[rxT~K}Q  
C-language and directly linked to the Prolog environment. epicY  
4. The xx process, once the xx's data has been entered, requires 1Kjqs)p^  
approximately 180 seconds. V0)bPcS/  
5. It should be noted that the computation was done with a 20 Hhz, s5bqS'%  
80386..209;based microcomputer equipped with a 80387 math !hs33@*u~  
co-processor. noNJ+0S  
6. The computer programs used for the analyses, one based on the xx J&2 J6Eq  
method and the other based on the new method, were written in pV8_i7\  
FORTRAN with a compiler that supports the math co-processor. lR k_<A  
7. Lisp, Prolog give maximum flexibility but also maximizes LR "=(  
M(^_/ 1Z  
development time. M7[GwA[Z +  
l Internal representation is the way a model is represented in the pG6?"*Fz;  
computer. xfF;u9$;  
l An interactive menu-driven procedure is used in this study HA J[Y3d<  
l Shell can be develop very fast at the cost of time fairly severe 9u6VN]divB  
limitations. w%?Zb[!&  
l While there is no measurable saving of time for the case involving y7t'I.E[+  
five criteria, the saving is dramatic for the case involving 10 criteria BM~6P|&qD  
-- the computation time reduces from 10 hr 40 min to about 1 min. s{Og3qUy  
l This combination is being implemented in an objected-oriented Pn,>eD*g  
programming environment (Smalltalk-80 system) to solve problems 85f:!p  
encountered in construction xxx. d5>EvK U  
Method / Approach / Study / Process Model / Equation /Algorithm / )oALB vX  
Rule / Formula / Technique =P9Tc"2PN  
l A discussion is presented of a problem-solving system bv;. 6C(T<  
l To improve the efficiency of the method, the following approach D^QL.Du,  
may be applied. !4a#);`G  
l In order to an investigation was made to find the causes of the G|*&owJ  
l Although large collections of rules and equations have been MgP&9  
complied, none are generally accepted =van<l4b#n  
l This approach will be explained and discussed thoroughly in the P5H_iH  
body of the report. *;(^)Sj4Q  
l This can be accomplished by ;"2VU"  
l This algorithm to compute the total cost can be described step by UlWm). b;v  
step as follows: v8WT?%  
l The above preliminary analysis has provided important qqJghV$Oj  
information aZ|?i }  
l Various methods have been proposed for selecting an optimum... /N({"G'  
l These concepts have been applied to '7pzw>E=:  
l On the basis of the concept mentioned above, o*artMkG  
l This can be achieved by n=PfV3B  
l This fact suggests that a new concept jU kxA7 }}  
l This was accomplished by taking ... `dD_"Hdt  
(/0dtJ  
l The preparatory stage is very time consuming process. _-sFJi8B  
l Test are performed for validity, completeness, and compatibility +*w}H 0Z  
l There is little hope of achieving successful ... mo3A*|U  
l There has been an increasing awareness of the potential of using kxN O9w  
most ..so far made have not taken this approach, with the exception Vhh=GJ  
of eX>*}pI  
l Only a few studies can be found. ,NvXpN  
l It is a very tedious process to go through Kj"X!-  
l It is only when .. has been completed that .. may be effected gq;>DY]   
l The entire interpretation process is conducted in one's head. uO-|?{29  
l These approaches are sometimes very tedious.  \m~p; B  
l Several techniques can be used z;dRzwL  
l A polynomial parametric model can be written as [the $qr6LIKGw  
following]/[follows]: |` ?&  
l A xx model is constructed/formulated using xx. vG.KSA  
l A xx model represents an xx by its xx. _yUYEq< `  
l A process decision model captures the logic essential to -ycdg'v  
l From the equation above, xx is equal to the summation of xx F~qZIggD  
times the ... t$~'$kM)<  
l The validity of a xx model can be checked using Euler's formula. c|`$ h  
l Given a model, one can mathematically determine whether ... or ... ,~&HL7 v  
l Equations for xx need to be derived and implemented in the 2IE\O 8b  
system. $/|) ,n  
l A number of heuristic rules have been developed for @&E IH,c  
l Optimum .. techniques can be made more reliable by ... so that [FrLxU  
l An algorithm based on the characteristic ... is used to determine /gl8w-6  
l Euler's formula states the following: JKfJ%yy |  
l The completed model should agree with the formula. q^sZP\i,*;  
l For manufacturing purposes, a detailed and precise model of the )gSqO {Z  
object is necessary /5/gnp C  
l Engineering design models are very well defined; therefore, kE .4 #  
l To keep the domain narrow enough to be implementable, yet wide #=S^i[K/  
enough to s[y.gR.(  
be useful. ~gW^9nWYU  
A9 g%>  
Point of View ![_0GFbT  
l from an implementation standpoint, HnKgD:  
l From the point of view of this application, wiZ  
l From this point of view, Zadeh suggested an inference rule named 2vLun   
xxx (CRI for short). ;h+~xxu=X  
l Information is the meaningful interpretation and correlation of =t)qy5  
some aggregation of data in order to allow one to make decisions. :&TM0O  
l From a practical point of view, the computational aspects of an 85H \v_[  
FLC require a simplification of the fuzzy control algorithm. c+e?xXCEAz  
l The use of a hammer to insert screws, although partly effective, SU4i'o  
tends to distort, destroy, and generally defeat the purpose of using a ]S[/ a  
screw [Kusiak AI Implications for CIM p.129] 4Ex&AR8  
Justification ?..BA&zRk  
l We choose the so called xx in our experiment because it has kt)Et  
received wide acceptance and can ;z.niX.fx  
l Prolog was chosen because it offers a well known and flexible "4H@&:-(p  
environment in which fuzzy reasoning may be easily implemented. :R=6Ku>  
l The rationale behind this is that it can be much easier for an >h;]rMD!|  
estimator to rate a cost as high than to attempt to place a dollar +71<B>L   
value on the estimate. ?l?l<`sTO  
l This strategy has been widely used in fuzzy control applications {<gv1Yht  
since it is natural and easy to implement. n]' r3  
l A function definition expresses the membership function of a ^ZQMRNP{r  
fuzzy set in a functional form, typically a bell-shaped function, etc. ,GYQ,9:  
Such functions are used in FLC because they lead themselves to |*NZ^6`@  
manipulation through the use of fuzzy arithmetic. sb{K%xi%  
l It should be noted that in our daily life most of the information on VZWo.Br'W  
which our decisions are based is linguistic rather than numerical in EwN{|34C  
nature. Seen in this perspective, fuzzy control rules provide a natural G5/A {1sz&  
framework for the characterization of human behavior and decisions 1l#46?] ~  
analysis. HbA/~7  
l Many experts have found that fuzzy control rules provide a n>q!m@ }<  
l EFd^@t  
convenient way to express their domain knowledge. This explains _P qq*  
why most FLCs are based on the knowledge and experience which rV%T+!n%c  
are expressed in the language of fuzzy "if-the" rule. 8eS(gKD  
Chapter 4. Examples apk,\L@sZ  
Example/ Data xjo`u:BH  
l The data used in the following example was taken from an K/ On|C  
experiment in which xx was measured between x and x using a xx )C8^'*!  
technique. (46'#E z[F  
l The data consists of over xx measurements. ,]2?S5R  
l An example of xx is discussed and the control rules of xx are ?`U_|Yo  
compared with a xx 6AAvsu:  
l Examples of complex processes to which this technique may be U~: H>  
applied are xx, xx, etc. vzg^tJ  
l The following example is constructed only for the purpose of |"SZpx  
illustrating the computational procedure discussed. )sm 9%|.&  
l This example clearly demonstrates that the profile of an individual NlEyT9  
xx, or a very small group of xx, with no enough data to be studied AfTm#-R  
statistically, can be meaningfully analyzed by fuzzy possibilistic (WT\HR  
methods. zas&gsl-;  
l There is no space here to go into detail on all these methods, but I+& T}R  
deserve a mention and the bibliography will point to detailed vTK%8qoZ  
references for those wishing this level of detail. S!8<|WO^t  
l Note that the golf ball spotting example is used throughout the w"9h_;'C_  
paper. ~JL qh  
Comparisons m0bxVV^DK!  
l As well, the pros and cons of these representations from a process plWN uEW  
planning point of view will be discussed. .jQx2 O  
l The method of using xx to implement xx described by Zadeh $vXY"-k  
(1973) appeared more suitable M +OVqTsFU  
l As discussed [in the previous section]/[preciously], fS4foMI63)  
G!I++M"  
Relation nnPT08$  
l We can not invert F' directly because it defines a many-to-one 6-wpR  
mapping. yf:0u_&]  
l The relationships appear very complicate 1 Gr^,Ry  
l Lifting tasks involve complex and imprecise relationship between j-1V,V=  
the task variables and the human operator's characteristics. U%@PY9#  
l These methods are based on the relationship between ... and ... g4WmUV#wp  
l The fundamental concept of a fuzzy rating language is that we can bW W!,- |R  
establish a relationship among terms such as high, medium, and low, `?$-T5Rr  
and then modify these relationships. W@AHE?s6g  
l This article will thus mention the latter as well as the former. 2`]c&k;]  
l The former two bear a close relation to a fuzzy Cartesian product. uN<=v&]q  
Importance KcV "<9rE  
l The emphasis is on an implementation of a general approach to l5w^rj  
rule based decision making. t_Eivm-,B  
Consideration / Attention ?/&X _O  
l Careful evaluation is necessary to ensure k H65k (  
l Such a formulation does not change further considerations. wBpt W2jA  
l Considerable attention has been paid to %t&Lq }e  
l Attention should be paid to an important finding of this l^R:W#*+U  
investigation. @~2k5pa  
l Caution should be exercised in this process to avoid ... =M 8Mt/P  
l Primary consideration is given to ... components, though others On);SN'  
can be accommodated M %zf?>])  
l After ... has been defined by ..., a carefully analysis is carried 49E| f ^q  
out/performed to determine ruagJS)+  
l A number of factors such as ...need to be taken into consideration `{YOl\d_  
before making the appropriate decision. 0i[t[_sce  
l It should be noted that ?T73BL=  
l It is important to point out that ... iOa<=  
l These considerations have heightened interest in the possibility of K_U`T;Z\  
providing ... }%wP^6G*x\  
/ w dvm4  
l We should stress the fundamental importance of the xx >%6j-:S  
Chapter 5. Results. IJ.H/l}h  
Advantages / Disadvantage suQ`a_ zJ  
l One of the major advantages of this new measure of xx is that it tvJl-&'N  
can be applied to the experimental study of ]mJ9CP8P1c  
l One advantage of using a .. is the ease of preparing it. :'t"kS  
l The xx system is versatile t re`iCH~  
l It has a very fast decision making process * s1o?'e  
l All the algorithms involve mostly logical operations. /jaO\t'q  
l It can be easily and without additional cost implemented in a L(y~ ,Kc  
microprocessor-based environment. WFug-#;e  
l It can reduce the waste of designing from scratch. C>l (4*S  
l The advantages of using a xx to represent xx are the following: (s1iYK  
l However, xx is not without its shortcomings. y}QqS /  
l In most cases, the xxx shows an improvement over the existing Oa5-^&I  
xxx. ;h~kB  
l Compared to the existing xx, the impacts of the xx are generally BH^cR<<j  
reduced by 5% to 9%. C`oB [  
l The "best case" results shows a savings of 6% to 9%. &@&^k$du8q  
l Most of the existing works based on xx approach can only } F*=+n  
recognize a xx . iQh:y:Jo1&  
l Most of the above methods are computational expansive and + L 5  
limited to xx. +I~U8v-  
l Some other advantages of xx are the following: . }tpEvAw}  
l The problem is the limitation of this method to a limited domain of b!;WF  
parts. (yeN> x}_  
l It proved limited in application because it demanded precision in n*=Tm KQ  
system modeling that was impossible in practice. j]9,yi  
l There are advantages to be gained in the structuring of costs and :rmi8!o  
benefits, the use of xx, i\L7z)u  
l The disadvantages of this method are also disadvantages of `O,"mm^@U  
conventional xx approaches. 49#? I:l  
VS <w:{*  
l This combines the best features of both techniques ~qW"v^<  
l Hopefully, this tool can be as the reference framework of for ?rwHkPJ{*  
developing a xx platform, and helping the administration, marketing, |i'w"Tz4  
and knowledge management activities in virtual communities. "CT`]:GGK  
Results Bk4|i k}  
l An improvement on the result shown above can be made by based ?Qh[vcF7`  
on the data provided FE?^}VH  
l Discussion of these theories is beyond the scope of this review CY.i0  
l Based on the information contained in this oth=#hfU^  
l The result can be categorized into nine classes T+<OlXpL  
l The results are illustrated by an example |Q~5TL>b  
l The experimental results for each xx time are reported in Table 2. Q92hI"  
l From the results obtained so far, it seem that ehYGw2  
l Because of the inaccuracy of the ..., a conclusion cannot be drawn gNo}\ lm4V  
as |/p2DU2  
l Although much effort has been made to., this reality is far from u'EzYJ7  
completion. V4 Wn  
l The results indicate that the total benefits are higher than the AVv 8Hhd  
total costs. BnLE +X  
l Their results may then serve as guidelines for lower level models, 9 l9|w4YJs  
less fuzzy and more detailed. mq~L1< f  
Chapter 6. Conclusion p^QB^HEV  
l From the discussion, one may conclude that ... E#c ZM>  
l Form the above discussion, the conclusion can be reached that 5%Q[X  
l The conclusions drawn are also valid vy330SQPo  
l In conclusion to this, it becomes obvious that the problem of xx v5o@ls  
lies not only in... s\dF7/b  
l We have attempted to introduce some concepts associated with a G_a//[p  
theory of (t)a u  
xx based on fuzzy sets. YV0K&d  
l Considerable more work, hopefully, will be done in this area *z A1NH5  
l A fuzzy set procedure is proposed to solve xx selection problems *6e 5T  
+p:@ ,_  
interwoven with imprecise data U$(AZ|0  
l Employing the compositional rule of inference, the assessment of e7.!=R{6  
the xx compatibility in achieving prescribed xx projectiles in any OjiQBsgnj  
level of the hierarchy is made possible. lE?F Wt  
l This paper has presented a theoretical and experimental study of _=eeZ4f  
the xx process and xx concept. ( nH3  
l The experimental research results will hopefully serve as useful 2x7%6'  
feedback information for improvements for xx work. }Myi0I<  
l The scope of this contribution was to introduce a xx method. T;%ceLD  
l In general, fuzzy sets theory provides an alternative foundation L>mv\D;o.  
for xx analysis in a fuzzy environment. |H4/a;]~  
Future Research "K8<X  
l Thus, first extension of the approach could be, )'RLK4l  
l Present some cues for a further approach from Fuzzy Sets Theory 0#mu[ O  
application to u&>o1!c*P  
l Some improvements to the scheduling aspect of the model may 3'WS6B+  
be brought through additional levels in the hierarchy for more :h&*<!O2B`  
detailed representation of the scheduling activity. uz1t uX_  
Tables and Figures hfGA7P"  
l Figure 7-1 sketches these relationships. b:S#Sz$  
l The graphical representation of these functions is shown in Figure Z=Oo%lM6B  
1. B%L0g.D"  
l The xx may be depicted as in Figure 1. [lsr[`SJ<  
l Figure x shows the schematic diagram of the ^L;`F  
l Figure 1 though 2 provide a ... that B=/*8,u  
l the architecture of this expert system for .... is illustrated in Figure PT|W{RlNl  
2. wL2d.$?TEg  
l Figure 2 gives the outline of an ... system 7K`A2  
l Table shows the Mp ~E $f  
l as shown in Table 1 and 2 !m$OI:rr  
l This concept is illustrated in Figure 2 EM*YN=So  
l At the top of Table xx are shown two blocks of data. oSt-w{ !  
~_SV `io  
l Each table or matrix has constructs xx through xx as =F ZvtcCa  
row-headings, :JqH.Sqk  
xx through xx as column-headings. #5T+P8  
l A table of .. is developed and significant recommendations are ~) }npS;  
made. @R?S-*o  
CONJUGATION Gu&? Gn oc  
To Indicate Addition `ejE)VL=8h  
l additionally, again, also, and then, as can be easily understood, O'" &9  
besides, equally important, especially, finally, for the same reason, l?B\TA^  
first, further, furthermore, in addition, last, likewise, moreover, next, A%u-6"  
second, third, too, evidently, obviously, roughly speaking, broadly 5-bd1 !o  
speaking 9S.Uo[YY  
To Indicate Cause and Effect 8|?$KLz?F>  
l accordingly, as a result, consequently, for this reason, hence, in 9xC,i )  
short, otherwise, then, therefore, thus, truly Tm@m k  
To indicate Comparison OUe@U;l{Z  
l in a like manner, likewise, similarly , alternatively ^l ~i>:V  
To Indicate Concession ~d 7!)c`z  
l after all, although this may be true, at the same time, even though, GLt#]I"LY  
even so , I admit, naturally, of course N>7IN K  
To Indicate Contrast }V?SedsY  
l and yet, at the same time, but, for all that, however, yet, in fact, in AU$W=Z*  
contrast, in the real life, in spite of, nevertheless, notwithstanding, bQb> S<PT  
normally, on the contrary, on the other hand, still, traditionally, (D{ Fln\  
rather, unfortunately, VLc=!W}  
To Indicate Time Relationships: |~W!Y\l-  
after a short time, afterwards, as indicated earlier, as long as, as soon -d6| D?}S  
xRJv_=dT  
as, at last, at length, at the moment, at that time, at the same time, 'i{kuTv  
before, earlier, currently, immediately, in the meantime, in recent "o`N6@[w ^  
years, lately, later, meanwhile, often, of late, presently, recently, ykxjT@[  
soon, shortly, since, thereupon, temporarily, therefore, until, when, 1-1x,U7w  
while jhUab],  
To Indicate Special Features or Examples: 1fm\5/}'`1  
for example, for instance, incidentally, indeed, in fact, in other words,  .-'  
in particular, in practice, specifically, that is, to illustrate, in this )Rn}4)9!iT  
respect, theoretically, as mentioned before / above ;-lk#D?n9  
To Indicate Summary: @/ wJW``;  
in brief, in conclusion, in short, in summary, on the whole, to ea=@r Ng  
conclude vL`wn=  
, in general, to summarize, to sum up, as a result, ultimately, Ix^xL+Tm  
VERB PHASE ]YQlCx`  
l build a .. model xpKD 'O=T  
l build up the key link xXE/pIXw  
l began a new era in ... -wy$ ?Ha  
l can be regarded as / achieved / used to/for / found / obtained jmmm0,#D  
through * 'WzIk2  
l can result in bBc<yaN  
l carries out ... tasks F"#bCnS  
l production information in order to simultaneously h)"PPI  
l contains all information necessary to describe iJk`{P_  
l do not make use of production information zy~vw6vu  
l deals with # nwEF QA  
l end with failure $U<so{xn%  
l fetch the information from the model directly 6n]fr9f  
l has great potential / yet to be resolved / spurred the .dt7b4.kd  
development of / &/d;4Eu  
been recognized as "GEJ9_a[  
l BE aimed at / built up / carried out by / essentially concerned N0oBtGb  
-tAdA2?G  
with / considered to be the key technology / associated with each k]!Fh^O~,  
feature of a compo o"->R C  
site component / cable of / currently implemented for / !5wm9I!5^  
demonstrated by an example / finally reached / made equal to / `$\g8Mo  
equivalent to / more suitable to / oriented to / interpreted as / X(U CN0#  
pointed out / potentially of great benefit in the complex task of / ,di'279|  
shown in / used to effectively guide the search d&4]?8}=.  
l makes use of Jp=eh   
l make up t8DyS FT  
l meets the needs of real life production,/ the current demands {5QIQ  
placed upon it <[ />M  
l must be justified 1P:r=Rt/  
l point out EYtf>D  
l play an important role "5"6mw?  
l relates to Mo\LFxx>4{  
l rely on Kv^ez%I  
l satisfy the needs [,Q(~Qb  
l determine the total requirements for the ... D::$YR ~R  
l uses ... as a key to search for... mD{<Lp=  
l without relying on HgPRz C  
l will be available/ performed/ overlooked REUWK#>  
NOUN PHASE .[%em9u  
l a basic technical function of D 's'LspQ  
l a critical need 23 j{bK  
l a key / principle feature of T+ey> [  
l a substantial impact on 2?9 FFlX  
l an intensive review was conducted /` 891( f,  
l an increasing need for expanding the application of .... _PD RUJ  
l an important component / function / aspect / issue {U1 j@pKm  
l each rule is numbered in sequence =r=[e}&9  
l each of these involves eSo/1D  
l for this calculation, it is necessary to define WBD e`  
l in the physical environment / integration of y`O !,kW  
Rj 2N+59rg  
l in the reality of situations where … gdkl,z3N3  
l many aspects of g /D@/AU1u  
l most past efforts have been spent on ... 0f~7n*XH  
l common sense to a well studied and documented technical field. 2 <HG=iSf  
l sources of additional information on ... are listed n!=%MgF'*p  
l systematic and rationally structured format i( P/=B  
l the basis on which a range of ...operations can be established is Gh}k9-L  
shown 09z%y[z  
l THE basic philosophy / principles of / key element / general Q WVH4rg  
hypothesis / candidate list of / concept of ... has attracted wide PhBdm'  
interest / function is concerned with / heart / impact / nature / role 7L~LpB  
/ task of / kernel functions .2?tx OKh  
l the number of parts needed to &2IrST{d:V  
l the above statement means that :K&>  
l the output data is passed to mUW|4zl i}  
l the proposed method / underlying principle Vj?{T(K1[  
l the recommendations made in this report, if implemented, should KWtLrZ(j  
l this information resides in O%?TxzX;  
l this process is composed of ... different ... operation G8xM]'y  
l along with the use of 3=o^Vv  
l concerning general aspects of 0tbximmDb  
l due to 7^$PauAv  
l for later use in generating..., N)'oX3?x  
l in turn, ;\(Wz5Ok&J  
l IT IS believed / noted / assumed / suggested / shown / quite XE8~R5  
evident / appears / implies that / intended for / of no important to 2q}M1-^  
l it can be claimed/concluded that hKq <e%oVH  
l it demonstrates the decisions required of ^]mwL)I}  
l it also provides information to .. XVXiiQ^  
l it becomes essential to gQy {OU  
l let ... be the probability that 4k' 2FkDA  
l once... is written, it is compiled into... qc^ u%  
l suppose it is observed that oXw}K((|  
l this is because uv*OiB"  
ca>6r`  
l this results in a :`BZ,j_  
l upon completion of the ... analysis, @kU{  
l when the knowledge is of mathematics or quantum physics, it will MGn:Gj"d  
also be `jY*0{  
recorded in books and papers PMr {BS  
l selection of rules for using the tools, for generating operation y- S]\tu  
plans, [\N,ow,n  
is another matter of preference, since practice varies greatly. + >o/Ob  
l for the sake of convenience YpQ/ )fSEV  
l correct decision to be reach =IBdnEz:M  
l keeping the number of rules to a minimum. /7Z0|Zw]  
l a good process plan will result exhibiting several characteristics: ;6aTt2BQ  
l practical solutions e* gCc7zz  
l because of rather small job lot sizes $^R[t;  
l Backward reasoning can be used to answer the question "should ,6rg00wGE  
milling tool be select" different level of knowledge in the realm of Te?UQX7Z}M  
process planning
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沙发  发表于: 2007-11-14   
Very useful, thank u!
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