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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 e. 9oB<Etp  
5\/h3 i"I  
cU7 c}?J<  
Beginning i)=!U>B_0  
1. In this paper, we focus on the need for jz(}P8  
2. This paper proceeds as follow. b$)b/=2  
3. The structure of the paper is as follows. xb$eFiQ  
4. In this paper, we shall first briefly introduce fuzzy sets and related ma.yI};$  
concepts OV ~|@{6T  
5. To begin with we will provide a brief background on the "2:]9j  
Introduction k6-.XW  
1. This will be followed by a description of the fuzzy nature of the 44_ 7gOZ  
problem and a detailed presentation of how the required A7@5lHMF  
membership functions are defined. 3Tv;<hF  
2. Details on xx and xx are discussed in later sections. /N(L52mz  
3. In the next section, after a statement of the basic problem, various ]l.y/pRP5[  
situations involving possibility knowledge are investigated: first, an l%]S7|PKx  
entirely possibility model is proposed; then the cases of a fuzzy > (+g:p  
service time with stochastic arrivals and non-fuzzy service rule is FaO=<jYi  
studied; lastly, fuzzy service rule are considered. ;\yY*  
Review qXO@FW]  
1. This review is followed by an introduction. ImQ?<g8$  
2. A brief summary of some of the relevant concepts in xxx and xxx is v~i/e+.h>y  
presented in Section 2. r<4FF=  
3. In the next section, a brief review of the .... is given. < wV?B9j  
4. In the next section, a short review of ... is given with special regard dX|(n.}  
to ... 3D>syf  
5. Section 2 reviews relevant research related to xx. }Jkz0JY~  
6. Section 1.1 briefly surveys the motivation for a methodology of Kc~h  
action, while 1.2 looks at the difficulties posed by the complexity of  9')  
systems and outlines the need for development of possibility lN"%~n?  
methods. "e<Z$"7i  
Body )Cl!,m)~  
1. Section 1 defines the notion of robustness, and argues for its ZaYux-0]kF  
p%A s6 .  
importance. ab4(?-'-  
2. Section 1 devoted to the basic aspects of the FLC decision-making OL|_@Fv`A  
logic. QfjgBJo%  
3. Section 2 gives the background of the problem which includes xxx Z%_" -ENT  
4. Section 2 discusses some problems with and approaches to, 2 t'^  
natural language understanding. 1I< <`7'  
5. Section 2 explains how flexibility which often ... can be expressed 9AQMB1D*v4  
in terms of fuzzy time-window 04{*iS95J  
6. Section 3 discusses the aspects of fuzzy set theory that are used in b?D hhf  
the ... \[</|]'[  
7. Section 3 describes the system itself in a general way, including R_iQLBrd  
the ….. and also discusses how to evaluate system performance. oJ}!qrrH  
8. Section 3 describes a new measure of xx. IK~'ke  
9. Section 3 demonstrates the use of fuzzy possibility theory in the UzZzt$Kw  
analysis of xx. V 2-fJ!  
10. Section 3 is a fine description of fuzzy formulation of human ,CACQhrng  
decision. Ak(_![Q:q\  
11. Section 3 is developed to the modeling and processing of fuzzy Bn>"lDf,  
decision rules OhUEp g[  
12. The main idea of the FLC is described in Section 3 while Section 4 i co%_fp  
describes the xx strategies. }"k+e^0^  
13. Section 3 and 4 show experimental studies for verifying the ?"oW1a\  
proposed model. <\i}zoPO  
14. Section 4 discusses a previous fuzzy set-based approach to cost Vgzw['L}  
variance investigation. QoagyL  
15. Section 4 gives a specific example of xxx. 1eiV[z$?  
16. Section 4 is the experimental study to make a fuzzy model of v/dyu  
memory process. Mf [v7\  
17. Section 4 contains a discussion of the implication of the results of ;IklS*p]  
Section 2 and 3. rof& O   
18. Section 4 applies this fuzzy measure to the analysis of xx and (N6 3k1M  
illustrate its use on experimental data. z D&5R/I  
19. Section 5 presents the primary results of the paper: a fuzzy set 3awh>1N2 W  
model .. !VNLjbee.  
a;},y|'E  
20. Section 5 contains some conclusions plus some ideas for further ssdpwn'  
work. cT8b$P5w  
21. Section 6 illustrates the model with an example. 2?=R_&0 Q  
22. Various ways of justification and the reasons for their choice are y]1:IJL2;  
discussed very briefly in Section 2. ^Rgm3?7  
23. In Section 2 are presented the block diagram expression of a :wlX`YW+e  
whole model dy>iIc>  
of human DM system 014p= W  
24. In Section 2 we shall list a collection of basic assumptions which oH;0_!  
a ... scheme must satisfy. ,k% \f]a  
25. In Section 2 of this paper, we present representation and Q i&!Ub]  
uniqueness theorems for the fundamental measurement of fuzziness 'A#`,^]uLF  
when the domain of discourse is order-dense. hXxgK i%  
26. In Section 3, we describe the preliminary results of an empirical ^F5Q(A  
study /^#8z(@B  
currently in progress to verify the measurement model and to e1*<9&S  
construct membership functions. {Q/XV=  
27. In Section 5 is analyzed the inference process through the two K YSyz)M}  
kinds of inference experiments... cmw2EHTT<  
This Section !/1aot^(  
1. In this section, the characteristics and environment under which (}$pf6s  
MRP is designed are described. }|MPQy  
2. We will provide in this section basic terminologies and notations )qg cz<p?W  
which are necessary for the understanding of subsequent results. $L~?!u&N  
Next Section U"Gg ,  
2. The next section describes the mathematics that goes into the @P1#)  
computer implementation of such fuzzy logic statements. 6 WD(  
3. However, it is cumbersome for this purpose and in practical g{t)I0xm  
applications the formulae were rearranged and simplified as S4r-s;U-v/  
discussed in the next section. W%3<"'eP  
4. The three components will be described in the next two section, (\CT "u-  
and an example of xx analysis of a computer information system will X:aLed_{f  
~OuKewr\  
then illustrate their use. .7h:/d Y:  
5. We can interpret the results of Experiments I and II as in the \Vc-W|e  
following sections. x WZ87  
6. The next section summarizes the method in a from that is useful /QA:`_</oh  
for arguments based on xx ?3f-" K_r  
Summary =Nyq1~   
1. This paper concludes with a discussion of future research mes/gqrJ1I  
consideration in section 5. \`FpBE_e)  
2. Section 5 summarizes the results of this investigation. 3RwDIk?>%  
3. Section 5 gives the conclusions and future directions of research. oS2L"#  
4. Section 7 provides a summary and a discussion of some extensions E% B:6  
of the paper. !x%$xC^Iz  
5. Finally, conclusions and future work are summarized 3lkz:]SsE  
6. The basic questions posed above are then discussed and E46+B2_~zk  
conclusions are drawn. Kd<c'!  
7. Section 7 is the conclusion of the paper. p!b_tyJ  
Chapter 0. Abstract lk<}`#(g  
1. A basic problem in the design of xx is presented by the choice of a C(4r>TNm  
xx rate for the measurement of experimental variables. <k 41j=d  
2. This paper examines a new measure of xx in xx based on fuzzy cft'%IEs  
mathematics which overcomes the difficulties found in other xx JemB[  
measures. M5C%(sQ$  
3. This paper describes a system for the analysis of the xx. 2^V/>|W>w  
4. The method involves the construction of xx from fuzzy relations. y3^>a5z!x  
5. The procedure is useful in analyzing how groups reach a decision. UWf@(8  
6. The technique used is to employ a newly developed and versatile ZQ MK1  
xx algorithm. q'% cVM  
7. The usefulness of xx is also considered. r_p4pxs  
8. A brief methodology used in xx is discussed. *(w#*,lv  
9. The analysis is useful in xx and xx problem. kuQ+MQHs  
10. A model is developed for a xx analysis using fuzzy matrices. dXBXV>rbB  
11. Algorithms to combine these estimates and produce a xx are EN\ uX!  
}O7!>T  
presented and justified. V1d{E 0lM  
12. The use of the method is discussed and an example is given. d i;Fj  
13. Results of an experimental applications of this xx analysis It@1!_tO2  
procedure are given to illustrate the proposed technique. fxcCz 5  
14. This paper analyses problems in $Fr>'H+i  
15. This paper outlines the functions carried out by ... xO` `X<  
16. This paper includes an illustration of the ... Y/Dah*  
17. This paper provides an overview and information useful for f:!b0j  
approaching ej^pFo  
18. Emphasis is placed on the construction of a criterion function by {~=Z%Cj2Q  
which the xx in achieving a hierarchical system of objectives are 6M) 4v{F  
evaluated. \c .^^8r  
19. The main emphasis is placed on the problem of xx `;\<Fr  
20. Our proposed model is verified through experimental study. -Y:^<C^^&8  
21. The experimental results reveal interesting examples of fuzzy 4Ww.CkRG  
phases of: xx, xx Gd:fh5u':  
22. The compatibility of a project in terms of cost, and xx are likewise 7c7:B2Lq  
represented by linguistic variables. :TTZ@ q  
23. A didactic example is included to illustrate the computational 'U %L\v,  
procedure V+yyy- /  
Chapter 1. Introduction /P}Wp[)u  
Time  +bC=yR  
1. Over the course of the past 30 years, .. has emerged form intuitive #sg^l >/*  
2. Technological revolutions have recently hit the industrial world {rE]y C^  
3. The advent of ... systems for has had a significant impact on the E#I^D/0  
4. The development of ... is explored /#]4lFk:h  
5. During the past decade, the theory of fuzzy sets has developed in a }@'Zt6+tS  
variety of directions ~ v21b?   
6.The concept of xx was investigated quite intensively in recent years ,vE)/{:d  
7. There has been a turning point in ... methodology in accordance YlP8fxS  
with the advent of ... N%K%0o-  
8. A major concern in ... today is to continue to improve... <dAD-2O+  
9. A xx is a latecomer in the part representation arena. cf7UV6D g  
PE7D)!d T  
10. At the time of this writing, there is still no standard way of xx 7yDWcm_y  
11. Although a lot of effort is being spent on improving these P+j5_V{\b  
weaknesses, the efficient and effective method has yet to be ,^#{k!uaC{  
developed. U<"@@``+N  
12. The pioneer work can be traced to xx [1965]. v[UrOT:  
13. To date, none of the methods developed is perfect and all are far ^o@N.+`&<  
from ready to be used in commercial systems. Vw~st1",[  
Objective / Goal / Purpose s;[OR  
1. The purpose of the inference engine can be outlined as follows: #3WKm*T/  
2. The ultimate goal of the xx system is to allow the non-experts to j4fv-{=$  
utilize the existing knowledge in the area of manual handling of loads, 6bXP{,}Gp  
and to provide intelligent, computer-aided instruction for xxx. nR2pqaKc  
3. The paper concerns the development of a xx 8M DX()Bm  
4. The scope of this research lies in 1m5 =Nu  
5. The main theme of the paper is the application of rule-based GqT 0SP  
decision making. +"HLx%k  
6. These objectives are to be met with such thoroughness and [|)Eyd[G  
confidence as to permit ... oieZopYA  
7. The objectives of the ... operations study are as follows: 8>KBh)q  
8. The primary purpose/consideration/objective of ZI0C%c.~  
9. The ultimate goal of this concept is to provide pg4J)<t#  
10. The main objective of such a ... system is to I5$@1+B  
11. The aim of this paper is to provide methods to construct such <Z -d5D>  
probability distribution. l1utk8'-  
12. In order to achieve these objectives, an xx must meet the mK>c+ u)  
following requirements: 4 )U,A~ !  
13. In order to take advantage of their similarity \en}8r9cy  
14. more research is still required before final goal of ... can be h ?Ni5  
completed ,vn HEY&  
15. In this trial, the objective is to generate... $<~o,e-4  
16. for the sake of concentrating on ... research issues {);S6F$[3  
17. A major goal of this report is to extend the utilization of a recently W_C#a'$  
developed procedure for the xx. C]xKdPQj%  
,dG2[<?o  
18. For an illustrative purpose, four well-known OR problems are bi^Xdu  
studied in presence of fuzzy data: xx. OjUZ-_J  
19. A major thrust of the paper is to discuss approaches and has \W\(  
strategies for structuring ..methods %p R: .u|  
20. This illustration points out the need to specify vuOixAkw  
21. The ultimate goal is both descriptive and prescriptive. $eI=5   
22. Chapter 2. Literature Review sI7<rI.t){  
23. A wealth of information is to be found in the statistics literature, ?0U.1N  
for example, regarding xx xw)$).yc  
24. A considerable amount of research has been done .. during the #K5)Rb-H  
last decade ";&5@H|  
25. A great number of studies report on the treatment of D]{#!w(d  
uncertainties associated with xx. :z^VI M  
26. There is considerable amount of literature on planning /MErS< 6  
27. However, these studies do not provide much attention to }i"\?M  
uncertainty in xx. h=fzX .dt  
28. Since then, the subject has been extensively explored and it is u; c)T t  
still under investigation as well in methodological aspects as in Jvk!a~e  
concrete applications. y rSTU-5u  
29. Many research studies have been carried out on this topic. Y"x9B%e  
30. Problem of xx draws recently more and more attention of system C6$F.v  
analysis. j J}3WJ  
31. Attempts to resolve this dilemma have resulted in the ?!h jI;_&  
development of ]dx6E6A,  
32. Many complex processes unfortunately, do not yield to this IfK%i/J  
design procedure and have, therefore, not yet been automated. XS L*e  
33. Most of the methods developed so far are deterministic and /or k u@sQn  
probabilistic in nature. -v '|#q  
34. The central issue in all these studies is to BrWo/1b  
35. The problem of xx has been studied by other investigators, YA";&|V  
however, these studies have been based upon classical statistical # s4v0auK  
approaches. 7S +YQ$_  
36. Applied ... techniques to b3>`%?A  
37. Characterized the ... system as VZ#@7t  
*J ]2"~_.  
38. Developed an algorithm to F5hOKUjv  
39. Developed a system called ... which R\^n2gK  
40. Uses an iterative algorithm to deduce lURL;h  
41. Emphasized the need to 8?YWE62  
42. Identifies six key issues surrounding high technology ,#NH]T`c1  
43. A comprehensive study of the... has been undertaken I;Sg 9`k=  
44. Much work has been reported recently in these filed >=T\=y  
45. Proposed/Presented/State that/Described/Illustrated/ @@?P\jv~  
Indicated/Has shown / showed/Address/Highlights (jV_L 1D  
46. Point out that the problem of p$qp C$F  
47. A study on ...was done / developed by [] 55mDLiA  
48. Previous work, such as [] and [], deal only with m(B,a,g<  
49. The approach taken by [] is +d$ l1j  
50. The system developed by [] consists YH:murJMZ  
51. A paper relevant to this research was published by [] w 2o% {n\L  
52. []'s model requires consideration of... `egyk)"aM  
53. []' model draws attention to evolution in human development A9?h*/$  
54. []'s model focuses on... O% >FKU>(?  
55. Little research has been conducted in applying ... to 3U_,4qf  
56. The published information that is relevant to this research... 7%%FYHMO:  
57. This study further shows that zFR=inI  
58. Their work is based on the principle of )\!-n]+A  
59. More history of ... can be found in xx et al. [1979]. zUe)f~4  
60. Studies have been completed to established .y)Y20=o!  
61. The ...studies indicated that %Ob#GA+  
62. Though application of xx in the filed of xx has proliferated in Nydhal00  
recent years, effort in analyzing xx, especially xx, is lacking. kW 7 $  
Problem / Issue / Question o:.6{+|N  
63. Unfortunately, real-world engineering problems such as b{Qg$Z JeR  
manufacturing planning do not fit well with this narrowly defined *<5zMSZO  
model. They tend to span broad activities and require consideration p5`d@y\hj  
of multiple aspects. " iKX-VIl  
64. Remedy / solve / alleviate these problems /IkSgKJiz\  
67. ... is a difficult problem, yet to be adequately resolved Xyf7sHQ  
W{{{c2 .  
68. Two major problems have yet to be addressed =` %iv|>r0  
69. An unanswered question ]h`<E~  
70. This problem in essence involves using x to obtain a solution. 2".^Ma^D!  
71. An additional research issue to be tackled is .... w|;kL{(W  
72. Some important issues in developing a ... system are discussed EE^ N01<"\  
73. The three prime issues can be summarized: jDaWmy<ha  
74. The situation leads to the problem of how to determine the ... (t{m(;/  
75. There have been many attempts to v)TFpV6b{p  
76. It is expected to be serious barrier to Rzolue 8  
77. It offers a simple solution in a limited domain for a complex gA&+<SK(  
problem. oI!L2  
1. There are several ways to get around this problem. E@f2hW2  
2. As difficult as it seems to be, xx is by no means new. !.(%"  
3. The problem is to recognize xx from a design representation. q*h1=H52  
4. A xx problem can trace its roots to xx. r%QnV0L^  
5. xx [1987] used a heuristic approach to simplify the complexity of g.cD3N  
the problem. vE9M2[TJA  
6. Several problems are associated with them. X1P_IB  
7. Although some progress has been made in this area, at least two $p} /&  
major obstacles must be overcome before a fully automated system `wyX)6A|bt  
can be realized. Ix"hl0Kh  
8. Most problems in practice are complicated ${/"u3a_  
9. More problem surface here. &|:T+LVv$+  
10. Hamper effort toward a xx system ""dX4^gtU  
11. In order to overcome the limitations due to incomplete and B Bub'  
imprecise xx knowledge, a xx program has been developed, which "/EE$eU  
bases its knowledge upon the statistical analysis of a sample bEXm@-ou  
population of xx QSn%~o05  
12. The above difficulties are real challenges faced by researchers t*fG;YOg  
attempting to develop ")q{>tV  
13. This type of mapping raises no controversy to the issue of .>(?c92  
membership function determination. 4b"%171  
14. However, attempts to quantify the xx have met both theoretical T4W"!4[  
and empirical problems. doCWJ   
IZm_/  
15. It has become apparent that in order to apply this new !U,^+"l'GP  
methodological framework to real-world problems and data, we have /nK)esB1L  
to pay attention to the problems of xx and xx. XsldbN^ 6  
Chapter 3. Proposed methodology ^J8sR4p#  
Assumption X^tVq..0  
1. In the case when the assumption of a xx seems to be too AUloP?24  
restrictive or inadequate, the formulation with Fuzzy termination eJMD8#  
time, i.e. given by a fuzzy set in the space of control stages, may be )shzJ9G  
applied. w8t,?dY  
2. We assume here the fuzzy constraints to be state-dependent, and hT&,5zaWdv  
the fuzzy goal to be the same for all the control states, xx, which &gkGH<oaX  
stems from the problem's nature. :E|HP#iwu  
3. An approach to the solution of this problem is presented under the UarU.~Uqi  
assumption that the sampling rate Decision can be made prior to the (}Ql#q K  
execution of the experiment, as opposed to being made while the (/&IBd-  
experiment is in progress. n:?fv=9n  
4. Another assumption made above is that there are precise odds at ]JX0:'x^  
which the expert is indifferent. { ~ yj]+Im  
5. Main simplifying assumptions are: D[)")xiG  
6. This, in our view, is a questionable assumption. j.$#10*:  
Outline / Structure / Module 7N^9D H{`  
1. An outline of the research 0f vQPs!O  
2. Information is incorporated within the scheme #&.& Uu$  
3. Is built into ... structure O6P0Am7s  
4. A nice modular structure. BRP 9j y  
5. The principles of ... are applied as modularized criteria dt Q>4C"N  
Classification ^*C+^l&J!  
1. A xx system comprises three main components: KQ3]'2q  
2. Must decompose the original .. into a set of .. >Dpz0v  
3. Consists of the following steps: Nt#zr]Fz  
4. This is summarized in the following steps: ;$@7iL  
(veGztt  
5. Can be broadly classified into the following areas: SsDz>PP  
6. Can be characterized by its function of effectively processing the $]4^ENkI  
7. Can allow further breadth of application of ...into more FG7}MUu  
8. The following steps should be followed /-<S FT`  
9. xx can be classified by a different ways. i TY4X:x  
10. Based on the xx, one may classify xx into the following: [JFmhLP9  
11. This catalog may change due to wear, breakage, and purchasing.  IpY  R  
System !*.mcIQT  
1. Unlike many conventional program, expert systems do not i]*W t8~!  
usually deal with problem for which there is clearly a right or wrong L,.Ae i9  
answer. [ P2$[|IM  
2. The system consists of both ... and ... [AQ6ads)  
3. The system has a hierarchical modular architecture organized on UiA\J  
three levels. ?:Y{c#w>  
4. expert system domains are area of expertise elb|=J`M0  
5. To develop a xx system for xx, the following factors must be 8Wid.o-U  
considered: KDgJ~T  
6. The system has been developed / designed to determine Ae:(_UJz  
7. The system has proven to be able to ?ltTJ(Po  
8. The domain in which an expert system operates is a particular r#*kx#"  
domain >- ]tOH,0  
9. The system comprises a ... with KgX~PP>  
10. The system is [feature-oriented ] / based on the ... technique 2V_C_5)1  
11. The system environment must be relatively stable `h_,I R<  
12. The system is utilized to generate, load, store, update and I\PhgFt@O  
retrieve ... n[lf==R  
13. The development of a xx system has two stages: xx stage and xx C_=! ( @`8  
stage. |E0>-\6  
14. The most essential part of .. system is the ... MPA<?  
15. The successful developments in ESs have made them an 1Vt7 [L*  
important tool in the development of 5j1}?0v_  
16. An automated system was developed for *qYcb} ]  
17. In this case, the system can be considered to be generative. ,i#]&f`c;5  
-}1S6dzr  
18. An interactive automatic ... system FOgF'!K  
19. A …. is commonly thought of as a truly integrated .. system jFpXTy[>  
20. Should be capable of being generated from a ... system !YSAQi ;I  
21. xx is an important part of the integrated system. G!T)V2y  
22. The model consists of four rule bases, each of which addresses a Oyhl*`-*t  
separate problem in the hierarchy of scheduling decision. qlD+[`=b  
23. The rule bases are linked to each other in a chin-like manner in +r *f2\S  
the sense that the consequent of one rule base constitutes a part of kM|akG  
the antecedent of the next rule base. Bx 0^?>  
24. The rule base consists of all possible combinations of the pL8+gL  
linguistic terms associated with the linguistic variable of the ?Q;8D@   
antecedent of a rule. r<cyxR ~  
Computer System "12.Bi.O"[  
1. The system has been implemented using Prolog language in an zI8Q "b  
MS-DOS environment. Prolog was chosen because it offers a well *,{. oO9#  
known and flexible environment in which fuzzy reasoning may be 1B w CJ7?8  
easily implemented. 2;r(?ebw  
2. The current version of the xx program when compiled with J!O5`k*.C  
WATFOR77 results in an executable code of about 270K bytes. YW9 [^  
Typical run time, when run on a XX computer (an IBM compatible KL,=Z&.<=  
machine) operating at 4.77 Mhz with 640K RAM, ranges from 10 min BRYhL|d~.  
to 2h, depending on the size (or complexity) of the problem. -q|K\>tgU  
3. Time consuming procedures have been implemented in ~V[pu  
C-language and directly linked to the Prolog environment. z g+78  
4. The xx process, once the xx's data has been entered, requires &0SX*KyI  
approximately 180 seconds. ]]`hnzJX  
5. It should be noted that the computation was done with a 20 Hhz, !}|n3wQ  
80386..209;based microcomputer equipped with a 80387 math R}c,ahd  
co-processor. @B %m,Mx  
6. The computer programs used for the analyses, one based on the xx  XWV )   
method and the other based on the new method, were written in wv<D%nF2|  
FORTRAN with a compiler that supports the math co-processor. 8PB(<|}u  
7. Lisp, Prolog give maximum flexibility but also maximizes fs+l  
`}#(Ze*V:  
development time. (f^WC,  
l Internal representation is the way a model is represented in the f9u^/QVS&  
computer. eU 'DQp*  
l An interactive menu-driven procedure is used in this study Er^ijh,  
l Shell can be develop very fast at the cost of time fairly severe 2Un~ Iy  
limitations. j9n3  
l While there is no measurable saving of time for the case involving u"XqWLTV  
five criteria, the saving is dramatic for the case involving 10 criteria |E-/b6G  
-- the computation time reduces from 10 hr 40 min to about 1 min. r,X5@/  
l This combination is being implemented in an objected-oriented U1bhd}MoR  
programming environment (Smalltalk-80 system) to solve problems DKgwi'R  
encountered in construction xxx. m6tbN/EJZ  
Method / Approach / Study / Process Model / Equation /Algorithm / l4?o0;: )  
Rule / Formula / Technique Jaz|b`KDj  
l A discussion is presented of a problem-solving system N|K,{ p^li  
l To improve the efficiency of the method, the following approach ^IGutZov  
may be applied. {E1g+><  
l In order to an investigation was made to find the causes of the WV}<6r$e  
l Although large collections of rules and equations have been 2*Hw6@Jj  
complied, none are generally accepted Ac;rMwXk#  
l This approach will be explained and discussed thoroughly in the rStfluPL  
body of the report. P/snzm|@  
l This can be accomplished by Z3?,r [   
l This algorithm to compute the total cost can be described step by //cj$}Rn!  
step as follows: im{'PgiR  
l The above preliminary analysis has provided important z1[2.&9D-  
information \U;4 \  
l Various methods have been proposed for selecting an optimum... 7^,C=2  
l These concepts have been applied to WqP>cl2Lm  
l On the basis of the concept mentioned above, WGjT06a\  
l This can be achieved by {; 0j9rr  
l This fact suggests that a new concept y;Xb." e~  
l This was accomplished by taking ... W$LaXytmak  
f"t\-ux.b  
l The preparatory stage is very time consuming process. p6m]( Jg  
l Test are performed for validity, completeness, and compatibility  ^ZnlWZ@r  
l There is little hope of achieving successful ... {wMw$Fvf  
l There has been an increasing awareness of the potential of using Q!K@  
most ..so far made have not taken this approach, with the exception !Cxo4Twg  
of 0STtwfTr:  
l Only a few studies can be found. =g4^tIYq  
l It is a very tedious process to go through 2?YN8 n9n  
l It is only when .. has been completed that .. may be effected Awl4*J~  
l The entire interpretation process is conducted in one's head. fP>_P# gZ  
l These approaches are sometimes very tedious. W 5,e;4/hL  
l Several techniques can be used jqq96hP,  
l A polynomial parametric model can be written as [the Pk/{~!+ $  
following]/[follows]: cF!ygz//  
l A xx model is constructed/formulated using xx. t"M&Yy  
l A xx model represents an xx by its xx. ~_ss[\N  
l A process decision model captures the logic essential to yO Ed8  
l From the equation above, xx is equal to the summation of xx Jydz2 zt!  
times the ... 5W"&$6vj  
l The validity of a xx model can be checked using Euler's formula. ucP }( $  
l Given a model, one can mathematically determine whether ... or ... V`xZ4 i%L  
l Equations for xx need to be derived and implemented in the n'R9SnW  
system. \jLn5$OW  
l A number of heuristic rules have been developed for QX}O{LQR  
l Optimum .. techniques can be made more reliable by ... so that x 'Pp!  
l An algorithm based on the characteristic ... is used to determine S <~"\<ED  
l Euler's formula states the following: U-/-aNJ]U  
l The completed model should agree with the formula. l M ]n  
l For manufacturing purposes, a detailed and precise model of the ozN#LIM>P  
object is necessary *Pj[r  
l Engineering design models are very well defined; therefore, ?K, xxH  
l To keep the domain narrow enough to be implementable, yet wide 0>hV?A  
enough to P,5gaT)  
be useful. Wr+?ul*_  
9x;CJhX  
Point of View nXHU|5.I  
l from an implementation standpoint, H9'Y` -r  
l From the point of view of this application, ~=HrD?-99p  
l From this point of view, Zadeh suggested an inference rule named <P&~k\BuF{  
xxx (CRI for short). LASR *  
l Information is the meaningful interpretation and correlation of L ;5R*)t  
some aggregation of data in order to allow one to make decisions. -I."= c%  
l From a practical point of view, the computational aspects of an ,<iJ#$: Sx  
FLC require a simplification of the fuzzy control algorithm. .b'o}DLa  
l The use of a hammer to insert screws, although partly effective, cQkH4>C~  
tends to distort, destroy, and generally defeat the purpose of using a 72rnMHq  
screw [Kusiak AI Implications for CIM p.129] E ]eVoC  
Justification ,G2]3 3Z  
l We choose the so called xx in our experiment because it has ]|NwC <  
received wide acceptance and can TI '(  
l Prolog was chosen because it offers a well known and flexible Z"spu a5  
environment in which fuzzy reasoning may be easily implemented. OsS5WY0H  
l The rationale behind this is that it can be much easier for an H/!_D f  
estimator to rate a cost as high than to attempt to place a dollar &YMz3ugI  
value on the estimate. yEYlQ=[#  
l This strategy has been widely used in fuzzy control applications ?^TjG)e7  
since it is natural and easy to implement. z"4UObVs  
l A function definition expresses the membership function of a ^kg[n908Nw  
fuzzy set in a functional form, typically a bell-shaped function, etc. a.P7O!2Lp  
Such functions are used in FLC because they lead themselves to S3cjw9V  
manipulation through the use of fuzzy arithmetic. MUo}Qi0K  
l It should be noted that in our daily life most of the information on e[txJ*SuO  
which our decisions are based is linguistic rather than numerical in S $wx>715  
nature. Seen in this perspective, fuzzy control rules provide a natural |e+8Xz1>  
framework for the characterization of human behavior and decisions \ ;.W;!*  
analysis. z#qlu=  
l Many experts have found that fuzzy control rules provide a M%dJqwH5{  
HsA4NRF'7  
convenient way to express their domain knowledge. This explains ;CbQ}k  
why most FLCs are based on the knowledge and experience which c.5?Q >!+  
are expressed in the language of fuzzy "if-the" rule. *= ]hc@  
Chapter 4. Examples j3j<01rq  
Example/ Data /mMRV:pd  
l The data used in the following example was taken from an h rfu\cI  
experiment in which xx was measured between x and x using a xx eKd F-;  
technique. :W'Yt9v)  
l The data consists of over xx measurements. F Qtlo+3  
l An example of xx is discussed and the control rules of xx are Uj!3H]d  
compared with a xx tb;!2$  
l Examples of complex processes to which this technique may be :1Jg;G  
applied are xx, xx, etc. Xg>nb1e  
l The following example is constructed only for the purpose of HWe?vz$4"  
illustrating the computational procedure discussed. @4h{#  
l This example clearly demonstrates that the profile of an individual xf1@mi[a  
xx, or a very small group of xx, with no enough data to be studied ByR%2_6&  
statistically, can be meaningfully analyzed by fuzzy possibilistic :S Tj <  
methods. jYAD9v%  
l There is no space here to go into detail on all these methods, but x!CCSM;q  
deserve a mention and the bibliography will point to detailed H38ODWO3  
references for those wishing this level of detail. hL:n9G  
l Note that the golf ball spotting example is used throughout the ve|:z  
paper. 32[lsU>1  
Comparisons xL,;(F\^  
l As well, the pros and cons of these representations from a process 98u$5=Z' /  
planning point of view will be discussed. V:?exJg9  
l The method of using xx to implement xx described by Zadeh `TNW LD@Z  
(1973) appeared more suitable TxZ ^zj  
l As discussed [in the previous section]/[preciously], %";bgU2Q  
sdq8wn  
Relation _97A9wHj  
l We can not invert F' directly because it defines a many-to-one W 7 9wz\a  
mapping. w i,}sEoM  
l The relationships appear very complicate $Z Sjq  
l Lifting tasks involve complex and imprecise relationship between T%kr&XsQX  
the task variables and the human operator's characteristics. (UW V#AR  
l These methods are based on the relationship between ... and ... a6AD`| U8  
l The fundamental concept of a fuzzy rating language is that we can RY=B>398:  
establish a relationship among terms such as high, medium, and low, qx3@]9  
and then modify these relationships. m[~fT(NI  
l This article will thus mention the latter as well as the former. ~>:uMXyV2t  
l The former two bear a close relation to a fuzzy Cartesian product. C*A!`Q?1Y  
Importance };5d>#NK,Y  
l The emphasis is on an implementation of a general approach to wO6 D\#  
rule based decision making. 8PQKB*<dB"  
Consideration / Attention +C4UM9  
l Careful evaluation is necessary to ensure pSM\(kVKa  
l Such a formulation does not change further considerations. ZzZy2.7  
l Considerable attention has been paid to xVOoYr>O  
l Attention should be paid to an important finding of this SJ(<u2J]  
investigation. R-Y07A  
l Caution should be exercised in this process to avoid ... k/MrNiC  
l Primary consideration is given to ... components, though others X6lkz*M.  
can be accommodated neN #Mo'A  
l After ... has been defined by ..., a carefully analysis is carried C"`,?K(U  
out/performed to determine M^f+R'Q3  
l A number of factors such as ...need to be taken into consideration D?yiK=:08`  
before making the appropriate decision. aj>6q=R  
l It should be noted that XxXMtiZ6  
l It is important to point out that ... IGKF&s*;{[  
l These considerations have heightened interest in the possibility of W dM?{; #  
providing ... ~.-o*  
vwA d6Tm  
l We should stress the fundamental importance of the xx S6~&g|T,  
Chapter 5. Results. -?T:> *]p  
Advantages / Disadvantage ozF173iI  
l One of the major advantages of this new measure of xx is that it O7&6]/`  
can be applied to the experimental study of W|NT*g{;M  
l One advantage of using a .. is the ease of preparing it. J['pBlEb\  
l The xx system is versatile IdP"]Sv{<  
l It has a very fast decision making process Pra,r9h,  
l All the algorithms involve mostly logical operations. nQy%av$  
l It can be easily and without additional cost implemented in a Ft} h&aYP  
microprocessor-based environment. JerueF;J  
l It can reduce the waste of designing from scratch. >ZX&2 {  
l The advantages of using a xx to represent xx are the following: mpcO-%a  
l However, xx is not without its shortcomings. aaa6R|>0  
l In most cases, the xxx shows an improvement over the existing 0m`{m'B4n  
xxx. -OvzEmI"  
l Compared to the existing xx, the impacts of the xx are generally ;:)1:Dy5  
reduced by 5% to 9%. 1$A7 BP  
l The "best case" results shows a savings of 6% to 9%. eyUhM jd  
l Most of the existing works based on xx approach can only Zndv!z  
recognize a xx . Ms * `w5n  
l Most of the above methods are computational expansive and i'6>_,\(  
limited to xx. -FxE!K  
l Some other advantages of xx are the following: R:[IH2F s  
l The problem is the limitation of this method to a limited domain of vC j, aSW  
parts. -~PiPYX  
l It proved limited in application because it demanded precision in 8Qwn  
system modeling that was impossible in practice. {y>o6OTITR  
l There are advantages to be gained in the structuring of costs and [*{G,=tF`Y  
benefits, the use of xx, ;XUi V$  
l The disadvantages of this method are also disadvantages of R=/^5DZ}  
conventional xx approaches. bOvMXj/HV=  
B'@a36  
l This combines the best features of both techniques iUH{rh!  
l Hopefully, this tool can be as the reference framework of for x{|`q9V~ N  
developing a xx platform, and helping the administration, marketing, . #7B10  
and knowledge management activities in virtual communities. i wFI lJ@  
Results $t1XoL  
l An improvement on the result shown above can be made by based +6i~Rx>  
on the data provided !+F6 Bf  
l Discussion of these theories is beyond the scope of this review i!tF{'*%#  
l Based on the information contained in this I7Uj<a=(q  
l The result can be categorized into nine classes M8,_E\*  
l The results are illustrated by an example N.l\2S}  
l The experimental results for each xx time are reported in Table 2. |K7zN\ Wq  
l From the results obtained so far, it seem that Gs0x;91  
l Because of the inaccuracy of the ..., a conclusion cannot be drawn q| EE em  
as \/ 9s<  
l Although much effort has been made to., this reality is far from sz?/4tY  
completion.  '7j!B1K-  
l The results indicate that the total benefits are higher than the ~"t33U6  
total costs. bq}hj Cy  
l Their results may then serve as guidelines for lower level models, ;FI"N@z  
less fuzzy and more detailed. <z2*T \B!8  
Chapter 6. Conclusion FK:Tni  
l From the discussion, one may conclude that ... .dr-I7&!  
l Form the above discussion, the conclusion can be reached that GQR|t?:t  
l The conclusions drawn are also valid .w@o%AO_  
l In conclusion to this, it becomes obvious that the problem of xx 2b`3"S  
lies not only in...  55<f  
l We have attempted to introduce some concepts associated with a )q>mt/,  
theory of .]IidsgM  
xx based on fuzzy sets. vnrP;T=^  
l Considerable more work, hopefully, will be done in this area ": G\  
l A fuzzy set procedure is proposed to solve xx selection problems - wizUp  
}qk8^W{  
interwoven with imprecise data c8"9Lv  
l Employing the compositional rule of inference, the assessment of o;#9$j7QP!  
the xx compatibility in achieving prescribed xx projectiles in any lls-Nir%  
level of the hierarchy is made possible. ._$tNGI4  
l This paper has presented a theoretical and experimental study of ='p&T|&  
the xx process and xx concept. G5R"5d'  
l The experimental research results will hopefully serve as useful ^#Ruw?D  
feedback information for improvements for xx work. IL\2?(&Z  
l The scope of this contribution was to introduce a xx method. C@7<0w  
l In general, fuzzy sets theory provides an alternative foundation eOdB<He36  
for xx analysis in a fuzzy environment. Km=dId7]  
Future Research M y v yp  
l Thus, first extension of the approach could be, f=f8) +5  
l Present some cues for a further approach from Fuzzy Sets Theory X5V8w4NN  
application to 5ml#/kE  
l Some improvements to the scheduling aspect of the model may J2ryYdo>  
be brought through additional levels in the hierarchy for more h:J0d~u  
detailed representation of the scheduling activity. v*pN~}5  
Tables and Figures -F+ )N$CW  
l Figure 7-1 sketches these relationships. LMF@-j%  
l The graphical representation of these functions is shown in Figure tE~OWjL  
1. |lnMT)^D  
l The xx may be depicted as in Figure 1. orGkS<P  
l Figure x shows the schematic diagram of the bGO[P<<  
l Figure 1 though 2 provide a ... that Tgf#I*(^]  
l the architecture of this expert system for .... is illustrated in Figure VX;br1$X  
2.  3 )bC,  
l Figure 2 gives the outline of an ... system d;< gwCc  
l Table shows the a&?SRC'x  
l as shown in Table 1 and 2 3t*e|Ih&j5  
l This concept is illustrated in Figure 2 z;#DX15Rj  
l At the top of Table xx are shown two blocks of data. {`Jr$*;  
W$I^Ej}>$  
l Each table or matrix has constructs xx through xx as (iT?uMRz  
row-headings, GmONhh(k  
xx through xx as column-headings. +J`H I1  
l A table of .. is developed and significant recommendations are x3`b5^  
made. W`qiPLk  
CONJUGATION Tx+Bkfj  
To Indicate Addition swfcA\7R  
l additionally, again, also, and then, as can be easily understood, ;?*`WB  
besides, equally important, especially, finally, for the same reason, GW29Rj1  
first, further, furthermore, in addition, last, likewise, moreover, next, l$1z%|I  
second, third, too, evidently, obviously, roughly speaking, broadly m$bX;F}T  
speaking Gl4(-e'b  
To Indicate Cause and Effect D^[}:O{  
l accordingly, as a result, consequently, for this reason, hence, in YV6@SXy  
short, otherwise, then, therefore, thus, truly w6-A-M6hD  
To indicate Comparison Ny\c>$z  
l in a like manner, likewise, similarly , alternatively /9K,W)h_  
To Indicate Concession [\Ks+S  
l after all, although this may be true, at the same time, even though, +5zLQ>]z  
even so , I admit, naturally, of course T;4& ^5 n  
To Indicate Contrast =&5^[:ksB  
l and yet, at the same time, but, for all that, however, yet, in fact, in :Z}d#Rbl  
contrast, in the real life, in spite of, nevertheless, notwithstanding, HB>&}z0  
normally, on the contrary, on the other hand, still, traditionally, M;96 Wm  
rather, unfortunately, {c7ZA%T~R  
To Indicate Time Relationships: 61XLL/=P  
after a short time, afterwards, as indicated earlier, as long as, as soon z ?3G`  
W -pN  
as, at last, at length, at the moment, at that time, at the same time, \1[=t+/  
before, earlier, currently, immediately, in the meantime, in recent vxey $Ir  
years, lately, later, meanwhile, often, of late, presently, recently, :c*_W /  
soon, shortly, since, thereupon, temporarily, therefore, until, when, ^ B>BA  
while A;06Zrf1  
To Indicate Special Features or Examples: d,hKy2  
for example, for instance, incidentally, indeed, in fact, in other words, r Ljb'\<*  
in particular, in practice, specifically, that is, to illustrate, in this VssD  
respect, theoretically, as mentioned before / above K KCzq |  
To Indicate Summary: S4salpz  
in brief, in conclusion, in short, in summary, on the whole, to "%mu~&Ga  
conclude Y]9AC  
, in general, to summarize, to sum up, as a result, ultimately, "B$r{ vG  
VERB PHASE c=^A3[AM  
l build a .. model &ody[k?'  
l build up the key link [?=Vqd  
l began a new era in ... 0sQt+_Dl%L  
l can be regarded as / achieved / used to/for / found / obtained (59u<F  
through \qo}}I>e  
l can result in 2i4&*& A  
l carries out ... tasks &nRbI:R  
l production information in order to simultaneously .!B>pp(9  
l contains all information necessary to describe M %vZcP  
l do not make use of production information O1 KT  
l deals with TTfU(w%&P  
l end with failure Hy*_4r  
l fetch the information from the model directly m?@0Pf}xa  
l has great potential / yet to be resolved / spurred the 2JMMNpya  
development of / Q!T+Jc9N  
been recognized as )[Bl3+'  
l BE aimed at / built up / carried out by / essentially concerned zYz0R:@n+  
QrX 5Kwq  
with / considered to be the key technology / associated with each f\zu7,GU  
feature of a compo $lC*q  
site component / cable of / currently implemented for / "h84D&V  
demonstrated by an example / finally reached / made equal to / U7(t >/  
equivalent to / more suitable to / oriented to / interpreted as / d*===~  
pointed out / potentially of great benefit in the complex task of / "L)=Y7Dx  
shown in / used to effectively guide the search !L ({i')  
l makes use of W3HTQGV  
l make up (pud`@D;[  
l meets the needs of real life production,/ the current demands vr$zYdV>  
placed upon it ;"1  
l must be justified H*H=a  
l point out _ l$1@  
l play an important role /DC\F5 G  
l relates to /5s,< 0Kz  
l rely on G#f(oGn :  
l satisfy the needs 8A,="YIt  
l determine the total requirements for the ... "x"y3v'  
l uses ... as a key to search for... qbunP!  
l without relying on jwW6m@+  
l will be available/ performed/ overlooked 1^HUu"Kt  
NOUN PHASE wfJ[" q   
l a basic technical function of .15^c+j  
l a critical need ZBf9Upg  
l a key / principle feature of >.}ewz&9o  
l a substantial impact on NW*qw q  
l an intensive review was conducted BGSq fr1F  
l an increasing need for expanding the application of .... >_m4 idq1  
l an important component / function / aspect / issue SaA9)s  
l each rule is numbered in sequence rjJ-ZRs\  
l each of these involves ` g5S  
l for this calculation, it is necessary to define xn`<g|"#  
l in the physical environment / integration of puPYM"  
w-3 B~e  
l in the reality of situations where … Ts~)0  
l many aspects of Zt7G f  
l most past efforts have been spent on ... Dn9AOi!  
l common sense to a well studied and documented technical field. .}6Mj]7?i  
l sources of additional information on ... are listed `;OEdeAM  
l systematic and rationally structured format 4-dV%DgC  
l the basis on which a range of ...operations can be established is -?K?P=B;X  
shown e52y}'L  
l THE basic philosophy / principles of / key element / general TM1D|H  
hypothesis / candidate list of / concept of ... has attracted wide 9"TPAywd  
interest / function is concerned with / heart / impact / nature / role /j`v N  
/ task of / kernel functions $kM8E@x2  
l the number of parts needed to 'J=knjAT  
l the above statement means that 6IQkP9P(  
l the output data is passed to G^ 2a<?Di  
l the proposed method / underlying principle ,7{}}l  
l the recommendations made in this report, if implemented, should XJ.ER LR.  
l this information resides in \XUG-\$p  
l this process is composed of ... different ... operation |,G=k,?_p  
l along with the use of 6}>:sr  
l concerning general aspects of tHj |_t  
l due to ny,a5zEnF  
l for later use in generating..., pOz4>R  
l in turn, D#~S< >u@  
l IT IS believed / noted / assumed / suggested / shown / quite tUp'cG  
evident / appears / implies that / intended for / of no important to `PY >p!E  
l it can be claimed/concluded that o.Jq1$)~y  
l it demonstrates the decisions required of ezOZ HY>|#  
l it also provides information to .. J:c]z 9&!  
l it becomes essential to )/:&i<Q:  
l let ... be the probability that U/|H%b  
l once... is written, it is compiled into... SuHv{u45  
l suppose it is observed that 7J edS  
l this is because 5G-}'-R  
\3ZQ:E}5  
l this results in a l9 |x7GB  
l upon completion of the ... analysis, O;ty k_yM  
l when the knowledge is of mathematics or quantum physics, it will x*9CK8o=  
also be AxN.k  
recorded in books and papers wK7wu.  
l selection of rules for using the tools, for generating operation /cy'% .!  
plans, CulU?-[i  
is another matter of preference, since practice varies greatly. >}43xIRRCq  
l for the sake of convenience WG{mg/\2(C  
l correct decision to be reach 4<['%7U_[  
l keeping the number of rules to a minimum. M =!RJ%6f  
l a good process plan will result exhibiting several characteristics: Ua@rp3fr  
l practical solutions M=n_;3,o  
l because of rather small job lot sizes ,u^S(vxyz  
l Backward reasoning can be used to answer the question "should aN.t) DG}J  
milling tool be select" different level of knowledge in the realm of [Z5Lgg&  
process planning
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沙发  发表于: 2007-11-14   
Very useful, thank u!
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