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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 >MrU^t  
D dO '  
PtOnj)Q  
Beginning O3Mv"Py%  
1. In this paper, we focus on the need for jtY~- @*  
2. This paper proceeds as follow. H12@12v  
3. The structure of the paper is as follows. D:EF@il  
4. In this paper, we shall first briefly introduce fuzzy sets and related `ayc YoD  
concepts #wiP {+%b  
5. To begin with we will provide a brief background on the ;# j 82  
Introduction j@!}r|-T  
1. This will be followed by a description of the fuzzy nature of the vDvGT<d  
problem and a detailed presentation of how the required j }l8k@f  
membership functions are defined. D0i30p`  
2. Details on xx and xx are discussed in later sections. i@L2W>{P  
3. In the next section, after a statement of the basic problem, various ,&G M\FTeb  
situations involving possibility knowledge are investigated: first, an -~f.>@Wb  
entirely possibility model is proposed; then the cases of a fuzzy 7bS[\5  
service time with stochastic arrivals and non-fuzzy service rule is 0g-ESf``{n  
studied; lastly, fuzzy service rule are considered. p\ S3A(  
Review eUlb6{!y?  
1. This review is followed by an introduction. >,Z{wxz J  
2. A brief summary of some of the relevant concepts in xxx and xxx is I1O?)x~  
presented in Section 2. AAgA]OD,  
3. In the next section, a brief review of the .... is given. GR `ncI$z  
4. In the next section, a short review of ... is given with special regard P.DWC'IBN  
to ... /|AuI qW  
5. Section 2 reviews relevant research related to xx. mM>|fHGA  
6. Section 1.1 briefly surveys the motivation for a methodology of Hc|U@G  
action, while 1.2 looks at the difficulties posed by the complexity of x$DJ  
systems and outlines the need for development of possibility @un }&URp  
methods. /GGu` f  
Body ]{^vs'as \  
1. Section 1 defines the notion of robustness, and argues for its krc!BK`V  
;(6lN<i U  
importance. !H\GHA'DO]  
2. Section 1 devoted to the basic aspects of the FLC decision-making }* JMc+!9@  
logic. x`i`]6q  
3. Section 2 gives the background of the problem which includes xxx );H[lKy  
4. Section 2 discusses some problems with and approaches to, Ct+%  
natural language understanding. ,6\f4/  
5. Section 2 explains how flexibility which often ... can be expressed Q@VnJ,  
in terms of fuzzy time-window L-{r*ccIW  
6. Section 3 discusses the aspects of fuzzy set theory that are used in g>P9hIl  
the ... 6qpV53H  
7. Section 3 describes the system itself in a general way, including I]1Hi?A2  
the ….. and also discusses how to evaluate system performance. KdsvZim0>  
8. Section 3 describes a new measure of xx. h xJgxM  
9. Section 3 demonstrates the use of fuzzy possibility theory in the wJ*-K-  
analysis of xx. X.9MOdG70  
10. Section 3 is a fine description of fuzzy formulation of human ruA+1-<f  
decision. H-KwkH`L4  
11. Section 3 is developed to the modeling and processing of fuzzy @"Fp;Je\bN  
decision rules dN/ "1%9)  
12. The main idea of the FLC is described in Section 3 while Section 4 |aAWW d5  
describes the xx strategies. ;VlZd*M?  
13. Section 3 and 4 show experimental studies for verifying the b_gN?F7_  
proposed model. 'EET3R K-S  
14. Section 4 discusses a previous fuzzy set-based approach to cost 7e{X$'  
variance investigation. /,N!g_"Z  
15. Section 4 gives a specific example of xxx. Bx : So6:  
16. Section 4 is the experimental study to make a fuzzy model of ^lc}FN  
memory process. K[>@'P}y  
17. Section 4 contains a discussion of the implication of the results of &Pg-|Ql  
Section 2 and 3. jw(> @SXz  
18. Section 4 applies this fuzzy measure to the analysis of xx and % X ,B-h^  
illustrate its use on experimental data. _[vdY|_  
19. Section 5 presents the primary results of the paper: a fuzzy set tGO[A#9a  
model .. K l0t yeT  
v;bP8)mI  
20. Section 5 contains some conclusions plus some ideas for further [[0bhmG)  
work. -Mi}yi  
21. Section 6 illustrates the model with an example. H (NT|  
22. Various ways of justification and the reasons for their choice are sE%<"h\_0  
discussed very briefly in Section 2. x !:9c<  
23. In Section 2 are presented the block diagram expression of a Q),3&4pM  
whole model !(]dz~sM  
of human DM system FSU%?PxO  
24. In Section 2 we shall list a collection of basic assumptions which BU]WN7]D$  
a ... scheme must satisfy. }6CXJ+-UR  
25. In Section 2 of this paper, we present representation and .qIy7_^  
uniqueness theorems for the fundamental measurement of fuzziness bQdSX8: !R  
when the domain of discourse is order-dense. u JQaHL!  
26. In Section 3, we describe the preliminary results of an empirical Hw?2XDv j  
study 'Uko^R)(  
currently in progress to verify the measurement model and to 2B9 i R  
construct membership functions. G !1~i*P$u  
27. In Section 5 is analyzed the inference process through the two i[2bmd!H  
kinds of inference experiments... [*9YIjn  
This Section aVppOxA  
1. In this section, the characteristics and environment under which 97(Xu=tX  
MRP is designed are described. XVrm3aj(m  
2. We will provide in this section basic terminologies and notations Hbjb7Y?[  
which are necessary for the understanding of subsequent results. f2O*8^^Y{Q  
Next Section z/ Ns5  
2. The next section describes the mathematics that goes into the \K?(  
computer implementation of such fuzzy logic statements. 't|Un G  
3. However, it is cumbersome for this purpose and in practical pHen>BA[  
applications the formulae were rearranged and simplified as 1p7cv~#95  
discussed in the next section. v[{8G^Z}54  
4. The three components will be described in the next two section, sK`~Csb iB  
and an example of xx analysis of a computer information system will L$+d.=]  
(C`FicY  
then illustrate their use. e2AN[Ar  
5. We can interpret the results of Experiments I and II as in the 1R=)17'O  
following sections. PIZ C;K4|  
6. The next section summarizes the method in a from that is useful tZaD${  
for arguments based on xx -{X<*P4p  
Summary [3O^0-:6E  
1. This paper concludes with a discussion of future research r]A" Og_U  
consideration in section 5. :/C ?FHs9  
2. Section 5 summarizes the results of this investigation. (jU/Wj!q  
3. Section 5 gives the conclusions and future directions of research. $%7I:  
4. Section 7 provides a summary and a discussion of some extensions T4OguP=  
of the paper. %55@3)V8Rf  
5. Finally, conclusions and future work are summarized XR*Q|4  
6. The basic questions posed above are then discussed and 9[cp7 Rcb  
conclusions are drawn. eeuZUf+~]  
7. Section 7 is the conclusion of the paper. L|&'jH)  
Chapter 0. Abstract 9 YP*f  
1. A basic problem in the design of xx is presented by the choice of a U't E^W  
xx rate for the measurement of experimental variables. 2Y400  
2. This paper examines a new measure of xx in xx based on fuzzy ePf+[pV3  
mathematics which overcomes the difficulties found in other xx (+|X<Bl:`  
measures. OE_ QInb<  
3. This paper describes a system for the analysis of the xx. ;W]D ~X&  
4. The method involves the construction of xx from fuzzy relations. =EQJqj1T  
5. The procedure is useful in analyzing how groups reach a decision. EQ4#fAM)  
6. The technique used is to employ a newly developed and versatile {vs 4vS6  
xx algorithm. $:Rn;  
7. The usefulness of xx is also considered. gX[|;IZ0o  
8. A brief methodology used in xx is discussed. /QQ8.8=5  
9. The analysis is useful in xx and xx problem. Ng\/)^  
10. A model is developed for a xx analysis using fuzzy matrices. fX_#S|DlSG  
11. Algorithms to combine these estimates and produce a xx are :z]}ZZ  
 3P1&;  
presented and justified. :M06 ;:e  
12. The use of the method is discussed and an example is given. zbNA \.y  
13. Results of an experimental applications of this xx analysis P''X_1oMC  
procedure are given to illustrate the proposed technique. ~4Pc_%&i  
14. This paper analyses problems in ] /+D^6  
15. This paper outlines the functions carried out by ... ^(ScgoXva  
16. This paper includes an illustration of the ... \i!Son.<  
17. This paper provides an overview and information useful for 6SVqRD<`  
approaching h4/X 0@l`  
18. Emphasis is placed on the construction of a criterion function by b.b@bq$1  
which the xx in achieving a hierarchical system of objectives are %a];  
evaluated. 5o#Yt  
19. The main emphasis is placed on the problem of xx RsW9:*R  
20. Our proposed model is verified through experimental study. $<|o cUC7  
21. The experimental results reveal interesting examples of fuzzy G/vC~6x  
phases of: xx, xx c8{]]  
22. The compatibility of a project in terms of cost, and xx are likewise pQMtj0(y  
represented by linguistic variables. 2| B[tt1Z  
23. A didactic example is included to illustrate the computational eWvo,4  
procedure /- 4$7qd  
Chapter 1. Introduction HSN8O@dy  
Time I;7nb4]AmF  
1. Over the course of the past 30 years, .. has emerged form intuitive 1f#mHt:(  
2. Technological revolutions have recently hit the industrial world [BM*oEFPB*  
3. The advent of ... systems for has had a significant impact on the  )zq.4  
4. The development of ... is explored +Llo81j&  
5. During the past decade, the theory of fuzzy sets has developed in a mM/i^zT  
variety of directions :!fG; )=  
6.The concept of xx was investigated quite intensively in recent years hXn3,3f3oZ  
7. There has been a turning point in ... methodology in accordance 4=Gph  
with the advent of ... Bfr'Zdw  
8. A major concern in ... today is to continue to improve... nmFC%p)4  
9. A xx is a latecomer in the part representation arena. C+{l7QT$t  
]"~51HQZ  
10. At the time of this writing, there is still no standard way of xx k+^'?D--'P  
11. Although a lot of effort is being spent on improving these KCuG u}  
weaknesses, the efficient and effective method has yet to be Ad$n4Ze  
developed. pS[KBQ"F  
12. The pioneer work can be traced to xx [1965]. %ZP+zh n}  
13. To date, none of the methods developed is perfect and all are far CHJ> {b`O  
from ready to be used in commercial systems. v$wBxC Y  
Objective / Goal / Purpose vuQ%dDxI  
1. The purpose of the inference engine can be outlined as follows: &~e $:8 +  
2. The ultimate goal of the xx system is to allow the non-experts to lb*8G  
utilize the existing knowledge in the area of manual handling of loads, _7T@5\b:;  
and to provide intelligent, computer-aided instruction for xxx. o*g|m.SjL  
3. The paper concerns the development of a xx m~ho E8C$  
4. The scope of this research lies in c`*TPqw(B[  
5. The main theme of the paper is the application of rule-based (Y% Q|u  
decision making. \C^;k%{LV  
6. These objectives are to be met with such thoroughness and qU6nJi+-I  
confidence as to permit ... Q7X3X,  
7. The objectives of the ... operations study are as follows: k n [Y   
8. The primary purpose/consideration/objective of  Ez~'^s@  
9. The ultimate goal of this concept is to provide U$dh1;  
10. The main objective of such a ... system is to COzyG.R.  
11. The aim of this paper is to provide methods to construct such jjM\.KL]  
probability distribution. =qy=-j]  
12. In order to achieve these objectives, an xx must meet the KOz(TZ?u  
following requirements: 2`GE  
13. In order to take advantage of their similarity 7!y5 SX8C  
14. more research is still required before final goal of ... can be E37<"(;  
completed S [h];eM  
15. In this trial, the objective is to generate... )}vNOE?X~  
16. for the sake of concentrating on ... research issues ,j:|w+l  
17. A major goal of this report is to extend the utilization of a recently h7*W *Bd  
developed procedure for the xx. `U#55k9^5  
ZQ^r`W9_ +  
18. For an illustrative purpose, four well-known OR problems are (/-hu[:  
studied in presence of fuzzy data: xx. g,o?q:FL  
19. A major thrust of the paper is to discuss approaches and mbnV[  
strategies for structuring ..methods kF;D BN  
20. This illustration points out the need to specify Uw,2}yR  
21. The ultimate goal is both descriptive and prescriptive. ay "'#[  
22. Chapter 2. Literature Review "s!7dKXI"  
23. A wealth of information is to be found in the statistics literature, pj4!:{.;  
for example, regarding xx {u1V|q  
24. A considerable amount of research has been done .. during the [V'QrcCF  
last decade wC `+  
25. A great number of studies report on the treatment of |#1(Z-}  
uncertainties associated with xx. qd8n2f  
26. There is considerable amount of literature on planning O+ }qQNe<  
27. However, these studies do not provide much attention to WDFjp  
uncertainty in xx. :l|%17N  
28. Since then, the subject has been extensively explored and it is mUS_(0q  
still under investigation as well in methodological aspects as in &>e-(4Xu  
concrete applications. :Mm3 gW)  
29. Many research studies have been carried out on this topic. L?5Ck<!xG  
30. Problem of xx draws recently more and more attention of system =K{\p`?  
analysis. %QKZT=}  
31. Attempts to resolve this dilemma have resulted in the JXyM\}9-X  
development of c@v{`d  
32. Many complex processes unfortunately, do not yield to this DW)2 m;  
design procedure and have, therefore, not yet been automated. u,}{I}x_  
33. Most of the methods developed so far are deterministic and /or J'N!Omz  
probabilistic in nature. ]4;PR("aU  
34. The central issue in all these studies is to kcb.Wz~=  
35. The problem of xx has been studied by other investigators, R+&jD;U{  
however, these studies have been based upon classical statistical x\Z'2?u}  
approaches. ]p_@@QTC  
36. Applied ... techniques to +3KEzo1=)  
37. Characterized the ... system as Z*-g[8FO  
3e(ehLc4DJ  
38. Developed an algorithm to K_K5'2dE  
39. Developed a system called ... which H,N)4;F<c  
40. Uses an iterative algorithm to deduce nu'M 39{  
41. Emphasized the need to Mi]L]-L  
42. Identifies six key issues surrounding high technology 0_CN/5F  
43. A comprehensive study of the... has been undertaken 6M13f@v  
44. Much work has been reported recently in these filed %;.;>Y(-  
45. Proposed/Presented/State that/Described/Illustrated/ C -iK$/U  
Indicated/Has shown / showed/Address/Highlights {dmj/6Lc  
46. Point out that the problem of 2 !'A:;  
47. A study on ...was done / developed by [] 3>Y 6)  
48. Previous work, such as [] and [], deal only with OK\A</8r  
49. The approach taken by [] is H<^/Ati,|  
50. The system developed by [] consists }[M`uZ  
51. A paper relevant to this research was published by [] RIIitgV_  
52. []'s model requires consideration of... =C~/7N,lW]  
53. []' model draws attention to evolution in human development IEU^#=n  
54. []'s model focuses on... y~75r\"R  
55. Little research has been conducted in applying ... to &LbJT$}V  
56. The published information that is relevant to this research... [ :zO}r:  
57. This study further shows that +Z85HY{  
58. Their work is based on the principle of /Ml.}7&  
59. More history of ... can be found in xx et al. [1979]. ;X?mmv'  
60. Studies have been completed to established IKi5 v~bE  
61. The ...studies indicated that mW:!M!kk  
62. Though application of xx in the filed of xx has proliferated in W8]lBh5~:  
recent years, effort in analyzing xx, especially xx, is lacking. {c (!;U  
Problem / Issue / Question "I QlVi  
63. Unfortunately, real-world engineering problems such as =KR NvW  
manufacturing planning do not fit well with this narrowly defined HQB( *  
model. They tend to span broad activities and require consideration D_x +:1(  
of multiple aspects. :hM/f  
64. Remedy / solve / alleviate these problems Yh> ]-SCw  
67. ... is a difficult problem, yet to be adequately resolved . Z%{'CC  
PTEHP   
68. Two major problems have yet to be addressed SXy=<%ed  
69. An unanswered question C?2' +K  
70. This problem in essence involves using x to obtain a solution. mVR P~:+  
71. An additional research issue to be tackled is .... Lliq j1&  
72. Some important issues in developing a ... system are discussed $ >EYhLBa  
73. The three prime issues can be summarized: a AB`G3  
74. The situation leads to the problem of how to determine the ... tQylT0'[+o  
75. There have been many attempts to $5*WLG&AK  
76. It is expected to be serious barrier to {\(L%\sV@  
77. It offers a simple solution in a limited domain for a complex 3.qTLga|}  
problem. }6@pJ G  
1. There are several ways to get around this problem. tuhA 9}E  
2. As difficult as it seems to be, xx is by no means new. nI*v820,  
3. The problem is to recognize xx from a design representation. 'UYR5Y>  
4. A xx problem can trace its roots to xx. (e[}/hf6  
5. xx [1987] used a heuristic approach to simplify the complexity of s%W<dDINl  
the problem. QV&D l_  
6. Several problems are associated with them. dS<C@(  
7. Although some progress has been made in this area, at least two ^/U|2'$'>E  
major obstacles must be overcome before a fully automated system Lg+G; W  
can be realized. =hMY2D  
8. Most problems in practice are complicated 48*Do}l]  
9. More problem surface here. o!!yd8~*r  
10. Hamper effort toward a xx system pb=cBZ$  
11. In order to overcome the limitations due to incomplete and 7K5P8N ,  
imprecise xx knowledge, a xx program has been developed, which r9ww.PpNk#  
bases its knowledge upon the statistical analysis of a sample wV ^V]c?U  
population of xx ( )3O=!  
12. The above difficulties are real challenges faced by researchers KFFSv{m[  
attempting to develop [NTt z <i@  
13. This type of mapping raises no controversy to the issue of =F;.l@:  
membership function determination. Z>^pCc\lH  
14. However, attempts to quantify the xx have met both theoretical ti<;7Yb  
and empirical problems. U8G%YGMG.4  
 BouTcC  
15. It has become apparent that in order to apply this new ^tCd L@$AS  
methodological framework to real-world problems and data, we have <&:=z?30"  
to pay attention to the problems of xx and xx. dH^<t,v  
Chapter 3. Proposed methodology w#g#8o>'  
Assumption xu'yVt9RC  
1. In the case when the assumption of a xx seems to be too DHY@akhrK  
restrictive or inadequate, the formulation with Fuzzy termination K/}rP[H  
time, i.e. given by a fuzzy set in the space of control stages, may be EVNY*&p  
applied. PtTHPAKj  
2. We assume here the fuzzy constraints to be state-dependent, and jr3ti>,xV  
the fuzzy goal to be the same for all the control states, xx, which ?K3(D;5 &i  
stems from the problem's nature. edK|NOOZ  
3. An approach to the solution of this problem is presented under the }@^4,FKJ  
assumption that the sampling rate Decision can be made prior to the "5,   
execution of the experiment, as opposed to being made while the <Engi!  
experiment is in progress. H~E(JLcU  
4. Another assumption made above is that there are precise odds at nO)X!dp}J  
which the expert is indifferent. Y9`5G%  
5. Main simplifying assumptions are: O/!bG~\Y  
6. This, in our view, is a questionable assumption. 5P'p2x#U  
Outline / Structure / Module T]?n)L,2  
1. An outline of the research :(H>2xS,s  
2. Information is incorporated within the scheme Z?O *'#yn  
3. Is built into ... structure BY]i;GVq  
4. A nice modular structure. OGY"<YH6  
5. The principles of ... are applied as modularized criteria @e'5E^  
Classification /P 2[:[w  
1. A xx system comprises three main components: a:_I  
2. Must decompose the original .. into a set of .. Tdc3_<1  
3. Consists of the following steps: >pr=|$zk=  
4. This is summarized in the following steps: >G'SbQ8  
7^Yk`Z?|a  
5. Can be broadly classified into the following areas: 3<=G?of  
6. Can be characterized by its function of effectively processing the Y1arX^Zb  
7. Can allow further breadth of application of ...into more 8L1oh j  
8. The following steps should be followed C -?!S  
9. xx can be classified by a different ways. X@|&c]]  
10. Based on the xx, one may classify xx into the following: fkSwD(  
11. This catalog may change due to wear, breakage, and purchasing. g5q$A9.Jl  
System tM#lFmdd\P  
1. Unlike many conventional program, expert systems do not o5n^!gi4  
usually deal with problem for which there is clearly a right or wrong c   c  
answer. l)-Mq@V  
2. The system consists of both ... and ... 1>Q'R  
3. The system has a hierarchical modular architecture organized on ;2m<CSv!D  
three levels. 8/"fWm/  
4. expert system domains are area of expertise P6Mhbmt9*  
5. To develop a xx system for xx, the following factors must be O0PJ6:9P  
considered: K]xa/G(  
6. The system has been developed / designed to determine S:61vD  
7. The system has proven to be able to "Y=+Ls(3o(  
8. The domain in which an expert system operates is a particular ++Ww88820  
domain s[Ur~Wvn  
9. The system comprises a ... with "EV!>^Z  
10. The system is [feature-oriented ] / based on the ... technique vEG'HOP  
11. The system environment must be relatively stable c={Ft*N  
12. The system is utilized to generate, load, store, update and 9GdB#k6W`  
retrieve ... 7}_!  
13. The development of a xx system has two stages: xx stage and xx rbZ[!LA  
stage. $Q+s /4\  
14. The most essential part of .. system is the ... J`*iZvW#Bx  
15. The successful developments in ESs have made them an aJqeD'\>  
important tool in the development of ggb |Ew  
16. An automated system was developed for 8Q)@  
17. In this case, the system can be considered to be generative. q/1Or;iK  
s4H2/EC  
18. An interactive automatic ... system rx:z#"?I  
19. A …. is commonly thought of as a truly integrated .. system V|MY!uV  
20. Should be capable of being generated from a ... system ,LOQDIyn  
21. xx is an important part of the integrated system. Ejq#~ Zhr!  
22. The model consists of four rule bases, each of which addresses a Ov82ibp_1  
separate problem in the hierarchy of scheduling decision. iGXBqUQ:  
23. The rule bases are linked to each other in a chin-like manner in +'oX  
the sense that the consequent of one rule base constitutes a part of Bf4%G,o5  
the antecedent of the next rule base. |vFj*XU  
24. The rule base consists of all possible combinations of the "'Z- UV  
linguistic terms associated with the linguistic variable of the $(q>mg:H  
antecedent of a rule. P|jF6?C  
Computer System _U)%kY8  
1. The system has been implemented using Prolog language in an iz"3\{aN  
MS-DOS environment. Prolog was chosen because it offers a well )yxT+g2!  
known and flexible environment in which fuzzy reasoning may be %1:chvS  
easily implemented. sNU}n<J -  
2. The current version of the xx program when compiled with tu%[p 4   
WATFOR77 results in an executable code of about 270K bytes. gd^Js 1Z  
Typical run time, when run on a XX computer (an IBM compatible q S8B##x+=  
machine) operating at 4.77 Mhz with 640K RAM, ranges from 10 min DHfB@/ q#  
to 2h, depending on the size (or complexity) of the problem. W$?e<@  
3. Time consuming procedures have been implemented in k<4 P6?  
C-language and directly linked to the Prolog environment. PoD^`()FR{  
4. The xx process, once the xx's data has been entered, requires `EMi0hm&H  
approximately 180 seconds. "2Op[~V  
5. It should be noted that the computation was done with a 20 Hhz, %(LvE}[RJ  
80386..209;based microcomputer equipped with a 80387 math s'_,:R\VM>  
co-processor. d34Y'r  
6. The computer programs used for the analyses, one based on the xx S]2 {ZDP  
method and the other based on the new method, were written in N?23 m`3  
FORTRAN with a compiler that supports the math co-processor. r[HT9  
7. Lisp, Prolog give maximum flexibility but also maximizes uMFV% +I  
ehOs9b  
development time. _ 6:ww/  
l Internal representation is the way a model is represented in the p#H]\ P'  
computer. m@ oUvxcd  
l An interactive menu-driven procedure is used in this study uu}-"/<~7  
l Shell can be develop very fast at the cost of time fairly severe 3eg5oAZ)G8  
limitations. ,d 7Z  
l While there is no measurable saving of time for the case involving  *W^=XbG  
five criteria, the saving is dramatic for the case involving 10 criteria #/WAzYt{  
-- the computation time reduces from 10 hr 40 min to about 1 min. ,k*F`.[  
l This combination is being implemented in an objected-oriented w:Q|?30  
programming environment (Smalltalk-80 system) to solve problems AMk~dzNt  
encountered in construction xxx. iVeQ]k(u  
Method / Approach / Study / Process Model / Equation /Algorithm / .5g}rxO8  
Rule / Formula / Technique oBw}hH,hp  
l A discussion is presented of a problem-solving system 97x%w]kV  
l To improve the efficiency of the method, the following approach c)3O/`  
may be applied. !0dX@V'r  
l In order to an investigation was made to find the causes of the cV]y=q 6  
l Although large collections of rules and equations have been pbdF]>\  
complied, none are generally accepted !`C%Fkq  
l This approach will be explained and discussed thoroughly in the r{V.jZ%p'Z  
body of the report. KW>VOW<.  
l This can be accomplished by IHVMHOq}'  
l This algorithm to compute the total cost can be described step by kJeu40o N  
step as follows: F '#^`G9  
l The above preliminary analysis has provided important .Qk{5=l6P  
information R2Yl)2 D  
l Various methods have been proposed for selecting an optimum... sU*3\  
l These concepts have been applied to gA:[3J,[;  
l On the basis of the concept mentioned above, 8GW ut=D  
l This can be achieved by *2#FRA#q  
l This fact suggests that a new concept r\bq[9dX>  
l This was accomplished by taking ... ?w8p LE~E  
.h!9wGi`  
l The preparatory stage is very time consuming process. ^#7viZ*  
l Test are performed for validity, completeness, and compatibility V^ Y*xZ  
l There is little hope of achieving successful ... `rq<jtf+  
l There has been an increasing awareness of the potential of using uegb;m  
most ..so far made have not taken this approach, with the exception L77EbP`P  
of ^ `E@/<w8  
l Only a few studies can be found. Kv1vx*>  
l It is a very tedious process to go through Yd.027  
l It is only when .. has been completed that .. may be effected UCn.t  
l The entire interpretation process is conducted in one's head. Gzj3Ka  
l These approaches are sometimes very tedious. jvWI_Fto  
l Several techniques can be used |9 x%gUm  
l A polynomial parametric model can be written as [the f{f_g8f[  
following]/[follows]: tw]/,>\G  
l A xx model is constructed/formulated using xx. TXx'7[  
l A xx model represents an xx by its xx. &1 oaZY w  
l A process decision model captures the logic essential to %OuX`w =  
l From the equation above, xx is equal to the summation of xx GPMrs)J*!  
times the ... *WD;C0?z  
l The validity of a xx model can be checked using Euler's formula. DqRLx85d1  
l Given a model, one can mathematically determine whether ... or ... 6/VNuQ_#  
l Equations for xx need to be derived and implemented in the 5a8JVDLX^  
system. BQE{  
l A number of heuristic rules have been developed for !W 0P `i<  
l Optimum .. techniques can be made more reliable by ... so that m\/>C|f\  
l An algorithm based on the characteristic ... is used to determine <r0.ppgY  
l Euler's formula states the following: 9=H}yiJz  
l The completed model should agree with the formula. $+ 0=GN  
l For manufacturing purposes, a detailed and precise model of the S!u6dz^[$X  
object is necessary T4Xtuu1  
l Engineering design models are very well defined; therefore, :EYu 4Y  
l To keep the domain narrow enough to be implementable, yet wide q^)=F_QvG  
enough to 9e0C3+)CY  
be useful. %3ou^mcj  
z7| s%&  
Point of View \nrgAC-b  
l from an implementation standpoint, 44Q6vb?  
l From the point of view of this application, R|nEd/' <  
l From this point of view, Zadeh suggested an inference rule named vYYS .ve  
xxx (CRI for short). F\o;t:  
l Information is the meaningful interpretation and correlation of f37ji  
some aggregation of data in order to allow one to make decisions. YCirOge  
l From a practical point of view, the computational aspects of an (Nm}3p  
FLC require a simplification of the fuzzy control algorithm. AD~~e% s=  
l The use of a hammer to insert screws, although partly effective, dCa}ITg  
tends to distort, destroy, and generally defeat the purpose of using a  i<B:  
screw [Kusiak AI Implications for CIM p.129] *?EO n-  
Justification Pz5ebhgq  
l We choose the so called xx in our experiment because it has IlcNT_ 5a8  
received wide acceptance and can z\xiACIc  
l Prolog was chosen because it offers a well known and flexible 3'?h;`v\Lo  
environment in which fuzzy reasoning may be easily implemented. ) j{WeG7L  
l The rationale behind this is that it can be much easier for an ,k4z;  
estimator to rate a cost as high than to attempt to place a dollar * i=?0M4S  
value on the estimate. 7 JxE |G  
l This strategy has been widely used in fuzzy control applications B rez&3[  
since it is natural and easy to implement. f28gE7Y\a  
l A function definition expresses the membership function of a ?)Tz'9l  
fuzzy set in a functional form, typically a bell-shaped function, etc. A8_\2'b  
Such functions are used in FLC because they lead themselves to zF[3%qZE:T  
manipulation through the use of fuzzy arithmetic. Paae-EmC  
l It should be noted that in our daily life most of the information on %Nwyx;>9^K  
which our decisions are based is linguistic rather than numerical in n/KI"qa]9  
nature. Seen in this perspective, fuzzy control rules provide a natural s[0prm5.  
framework for the characterization of human behavior and decisions 30sC4}   
analysis. y8< lp+  
l Many experts have found that fuzzy control rules provide a w,M1`RsK  
wc<2Uc  
convenient way to express their domain knowledge. This explains 9s;!iDFn  
why most FLCs are based on the knowledge and experience which M3ecIVm8(  
are expressed in the language of fuzzy "if-the" rule. . 1{vpX  
Chapter 4. Examples ?#V P)A  
Example/ Data K B`1%=  
l The data used in the following example was taken from an #U ",,*2  
experiment in which xx was measured between x and x using a xx +XU$GSw3(  
technique. Q9Y9{T  
l The data consists of over xx measurements. _|^&eT-u  
l An example of xx is discussed and the control rules of xx are *pcbwd!/  
compared with a xx wu&|~@_s@  
l Examples of complex processes to which this technique may be g(@$uJ  
applied are xx, xx, etc. !Zk%P  
l The following example is constructed only for the purpose of Q7 0**qm  
illustrating the computational procedure discussed. H 'WFORso[  
l This example clearly demonstrates that the profile of an individual Ovl?j&8  
xx, or a very small group of xx, with no enough data to be studied Ovaj":L  
statistically, can be meaningfully analyzed by fuzzy possibilistic jza}-=&+e  
methods. '?vgp  
l There is no space here to go into detail on all these methods, but 0%A(dJA6  
deserve a mention and the bibliography will point to detailed *oX   
references for those wishing this level of detail. RAD4q"}k  
l Note that the golf ball spotting example is used throughout the ])$. "g  
paper. bG?WB,1  
Comparisons 7tf81*e  
l As well, the pros and cons of these representations from a process bgzT3KZ  
planning point of view will be discussed. G+ $)W u  
l The method of using xx to implement xx described by Zadeh <QkN}+B=  
(1973) appeared more suitable n&3iv ^  
l As discussed [in the previous section]/[preciously], XW&8T"q7  
(8@h F#N1  
Relation %_j?< h&  
l We can not invert F' directly because it defines a many-to-one 9(N)MT5F  
mapping. $3]E8t  
l The relationships appear very complicate _ \v@9Q\  
l Lifting tasks involve complex and imprecise relationship between a' >$88tl  
the task variables and the human operator's characteristics. +Qi52OG  
l These methods are based on the relationship between ... and ... ik1L  
l The fundamental concept of a fuzzy rating language is that we can rmg";(I  
establish a relationship among terms such as high, medium, and low, %<ptkZK#  
and then modify these relationships. LO$#DHPt  
l This article will thus mention the latter as well as the former. _OknP2E  
l The former two bear a close relation to a fuzzy Cartesian product. c &Su d, &  
Importance Kz3h]/A.  
l The emphasis is on an implementation of a general approach to s:jL/%+COZ  
rule based decision making. [Tb3z:UUvf  
Consideration / Attention Ti@P4:q  
l Careful evaluation is necessary to ensure *F8 uu.  
l Such a formulation does not change further considerations. l=-d K_ I?  
l Considerable attention has been paid to HDW\S#  
l Attention should be paid to an important finding of this K}5 $;W#  
investigation. s!o<Pd yJK  
l Caution should be exercised in this process to avoid ... cV,03]x  
l Primary consideration is given to ... components, though others *l?% o{  
can be accommodated )oxP.K8q)U  
l After ... has been defined by ..., a carefully analysis is carried Uwm[q+sTp  
out/performed to determine 4Tzu"y  
l A number of factors such as ...need to be taken into consideration &A5[C{x  
before making the appropriate decision. FO'. a  
l It should be noted that ]kplb0`  
l It is important to point out that ... S5pP"&I[  
l These considerations have heightened interest in the possibility of r+#V{oE_  
providing ... n,Mw# r?y  
_]r)6RT  
l We should stress the fundamental importance of the xx -WW!V(~p  
Chapter 5. Results. CD<u@l,1  
Advantages / Disadvantage ~ {7N TW  
l One of the major advantages of this new measure of xx is that it QsF< =b~  
can be applied to the experimental study of ^nm!NL{z^  
l One advantage of using a .. is the ease of preparing it. ]zMBZs  
l The xx system is versatile .HyiPx3^  
l It has a very fast decision making process V_d%g<n4  
l All the algorithms involve mostly logical operations. Dp6"I!L<|  
l It can be easily and without additional cost implemented in a Xie dgy  
microprocessor-based environment. -I-& <+7v  
l It can reduce the waste of designing from scratch. {)[g  
l The advantages of using a xx to represent xx are the following: ;o@`l$O   
l However, xx is not without its shortcomings. WT {Cjn  
l In most cases, the xxx shows an improvement over the existing <C`eZ}Qqv  
xxx. gLxy RbVI  
l Compared to the existing xx, the impacts of the xx are generally x w83K  
reduced by 5% to 9%. S"A_TH  
l The "best case" results shows a savings of 6% to 9%. d\Z4?@T<5  
l Most of the existing works based on xx approach can only IguG0 3:.N  
recognize a xx . }N9a!,{P=b  
l Most of the above methods are computational expansive and z iGL4c0p  
limited to xx. i &Cqw~.H  
l Some other advantages of xx are the following: hgr ,v"  
l The problem is the limitation of this method to a limited domain of I%|s  
parts. (V?`W7  
l It proved limited in application because it demanded precision in XUNgt(OGR'  
system modeling that was impossible in practice. `/Jr8J_  
l There are advantages to be gained in the structuring of costs and %LlKi5u]  
benefits, the use of xx,  !3M!p&  
l The disadvantages of this method are also disadvantages of J 2~B<=V  
conventional xx approaches. , ZW.P`  
Ip\g ^ia  
l This combines the best features of both techniques 54_m {&hb  
l Hopefully, this tool can be as the reference framework of for Y k6WSurw  
developing a xx platform, and helping the administration, marketing, g8@HAV^H  
and knowledge management activities in virtual communities. =,Um;hU3r  
Results ,qh   
l An improvement on the result shown above can be made by based >Nqkz?67  
on the data provided V0B4<TTAo~  
l Discussion of these theories is beyond the scope of this review 4[j) $!l`  
l Based on the information contained in this OU=IV;V{  
l The result can be categorized into nine classes ;b2>y>?[  
l The results are illustrated by an example 2uB26SEIl  
l The experimental results for each xx time are reported in Table 2. t?&ajh  
l From the results obtained so far, it seem that Ase1R=0  
l Because of the inaccuracy of the ..., a conclusion cannot be drawn Ok"wec+,  
as F&Z>B};  
l Although much effort has been made to., this reality is far from EE{%hGb  
completion. $>`8' I  
l The results indicate that the total benefits are higher than the v3]M; Y\  
total costs. wOSNlbQ5jl  
l Their results may then serve as guidelines for lower level models,  KX@Fgs  
less fuzzy and more detailed. D^4V"rq  
Chapter 6. Conclusion v0 p EN\  
l From the discussion, one may conclude that ... s @9#hjv2  
l Form the above discussion, the conclusion can be reached that %|||M=akk  
l The conclusions drawn are also valid C_;6-Q%V  
l In conclusion to this, it becomes obvious that the problem of xx ^ `9OA`2  
lies not only in... iE{SqX  
l We have attempted to introduce some concepts associated with a [: Y^0[2  
theory of E_#&L({|@  
xx based on fuzzy sets. .4-S|]/d,  
l Considerable more work, hopefully, will be done in this area IrK )N  
l A fuzzy set procedure is proposed to solve xx selection problems e hGC N=  
l$NEx0Dffz  
interwoven with imprecise data {643Dz<e  
l Employing the compositional rule of inference, the assessment of [ ff.R  
the xx compatibility in achieving prescribed xx projectiles in any C8-q<t#SF  
level of the hierarchy is made possible. 2^:nlM{u  
l This paper has presented a theoretical and experimental study of ?z.`rD$}(n  
the xx process and xx concept. owB)+  
l The experimental research results will hopefully serve as useful 'L7.a'  
feedback information for improvements for xx work. C.Yz<?;S  
l The scope of this contribution was to introduce a xx method. 5VS<I\o}  
l In general, fuzzy sets theory provides an alternative foundation ^YV[1~O  
for xx analysis in a fuzzy environment. :JmNy <  
Future Research [VH t#JuN,  
l Thus, first extension of the approach could be, SqLKF<tY]/  
l Present some cues for a further approach from Fuzzy Sets Theory ]cK@nq)  
application to mv_-|N~  
l Some improvements to the scheduling aspect of the model may j  jQ=  
be brought through additional levels in the hierarchy for more G5Nub9_*X  
detailed representation of the scheduling activity. .T2I]d  
Tables and Figures r0,}f\  
l Figure 7-1 sketches these relationships. ]v@,>!Wn  
l The graphical representation of these functions is shown in Figure f3O'lc3  
1. ~EymD *  
l The xx may be depicted as in Figure 1. ^B7Aam  
l Figure x shows the schematic diagram of the )Lq FZ~B  
l Figure 1 though 2 provide a ... that c|XnPqo;f  
l the architecture of this expert system for .... is illustrated in Figure .#SWfAb2h  
2. (]L=$u4  
l Figure 2 gives the outline of an ... system +Aq}B jD#  
l Table shows the I[/u5V_b'  
l as shown in Table 1 and 2 !q?}[E2  
l This concept is illustrated in Figure 2 mi+I)b=  
l At the top of Table xx are shown two blocks of data. b@k3y9 &  
*Zln\Sx  
l Each table or matrix has constructs xx through xx as 6b0#z#E  
row-headings, :DEZ$gi  
xx through xx as column-headings. %NuS!v>  
l A table of .. is developed and significant recommendations are 7_LE2jpC,5  
made. FTn[$q  
CONJUGATION hhpH)Bi=  
To Indicate Addition i4l?q#X  
l additionally, again, also, and then, as can be easily understood, q;U[f6JjE  
besides, equally important, especially, finally, for the same reason, Q[ IaA"  
first, further, furthermore, in addition, last, likewise, moreover, next, MCvjdc3:  
second, third, too, evidently, obviously, roughly speaking, broadly !,]_tw>R  
speaking 8"? t6Z;5  
To Indicate Cause and Effect 0 I,-1o|s  
l accordingly, as a result, consequently, for this reason, hence, in %',. K)IR  
short, otherwise, then, therefore, thus, truly i;cqK&P;]  
To indicate Comparison {?82>q5F  
l in a like manner, likewise, similarly , alternatively @?z*: 7a  
To Indicate Concession h4]yIM `8d  
l after all, although this may be true, at the same time, even though, N( Cfv3{  
even so , I admit, naturally, of course tjGQ0-Lo  
To Indicate Contrast \D0Pik@?  
l and yet, at the same time, but, for all that, however, yet, in fact, in SJL?( S*  
contrast, in the real life, in spite of, nevertheless, notwithstanding,  RszqDm  
normally, on the contrary, on the other hand, still, traditionally, (sZ B-  
rather, unfortunately, GSsot%B u"  
To Indicate Time Relationships: i-$]Tg  
after a short time, afterwards, as indicated earlier, as long as, as soon `uY77co6  
kd2+k4@#  
as, at last, at length, at the moment, at that time, at the same time, \G2&   
before, earlier, currently, immediately, in the meantime, in recent -B'<* Y  
years, lately, later, meanwhile, often, of late, presently, recently, y<MXd,eE  
soon, shortly, since, thereupon, temporarily, therefore, until, when, c&ymVB?G:1  
while [+UF]m%W  
To Indicate Special Features or Examples: <a; <|Fm.  
for example, for instance, incidentally, indeed, in fact, in other words, aVEg%8  
in particular, in practice, specifically, that is, to illustrate, in this B\` 4TU}kE  
respect, theoretically, as mentioned before / above j8P=8w{  
To Indicate Summary: Yv\>\?865  
in brief, in conclusion, in short, in summary, on the whole, to 7Rwn{] r  
conclude eT0Y p  
, in general, to summarize, to sum up, as a result, ultimately, u[k0z!p_ c  
VERB PHASE (Rj'd>%c  
l build a .. model >|IUjv2L  
l build up the key link .'aW~WR  
l began a new era in ... $}+t|`*q8]  
l can be regarded as / achieved / used to/for / found / obtained  xY v@  
through :@K 1pAh4  
l can result in dz_~_|  
l carries out ... tasks &V"9[ 0  
l production information in order to simultaneously <a_ytSoG1  
l contains all information necessary to describe "h58I)O  
l do not make use of production information 2z#gn9Wb  
l deals with 3M~*4  
l end with failure 4TX~]tEyky  
l fetch the information from the model directly 0q}k"(9  
l has great potential / yet to be resolved / spurred the 6)5Akyz4V  
development of / ]fiAV|'^  
been recognized as N #C,q&;  
l BE aimed at / built up / carried out by / essentially concerned AXN%b2  
3Q;XvrGA  
with / considered to be the key technology / associated with each +s$` kl  
feature of a compo N./l\NtZ  
site component / cable of / currently implemented for / EUGN`t-M  
demonstrated by an example / finally reached / made equal to / i?^lEqy[  
equivalent to / more suitable to / oriented to / interpreted as / Z2@_F7cXt  
pointed out / potentially of great benefit in the complex task of / >tGl7Ov  
shown in / used to effectively guide the search Le,e,#hiY  
l makes use of ?R#?=<VkG  
l make up L>@:Xo@  
l meets the needs of real life production,/ the current demands .^hk^r  
placed upon it @ vHj>N  
l must be justified A*x3O%zH  
l point out 25R6>CXsi  
l play an important role vXI2u;=y  
l relates to I l2`c}9  
l rely on t?l0L1;  
l satisfy the needs Z4VNm1qs  
l determine the total requirements for the ... J n~t>?  
l uses ... as a key to search for... ,Y+J.8.H   
l without relying on J bR;E`8  
l will be available/ performed/ overlooked a]]>(Txc  
NOUN PHASE }} s.0Q  
l a basic technical function of &\p=s.y?j  
l a critical need p3`odmbN  
l a key / principle feature of D}i_#-^MH  
l a substantial impact on wgPkSsuBuC  
l an intensive review was conducted j84g6;4Dv  
l an increasing need for expanding the application of .... I7C*P~32{n  
l an important component / function / aspect / issue b~Q8&z2  
l each rule is numbered in sequence lk(. zYaaN  
l each of these involves 99/`23YL  
l for this calculation, it is necessary to define aK+jpi4?  
l in the physical environment / integration of q-<t'uhs[  
Ex`!C]sQ  
l in the reality of situations where … aePLP  
l many aspects of "I}]]?y  
l most past efforts have been spent on ... 0Z,a3)jcc  
l common sense to a well studied and documented technical field. .$~zxd#zo  
l sources of additional information on ... are listed dd> qy  
l systematic and rationally structured format &aLelJ~  
l the basis on which a range of ...operations can be established is CtO;_ ;eD'  
shown xhTiOt6l  
l THE basic philosophy / principles of / key element / general <n|ayxA)  
hypothesis / candidate list of / concept of ... has attracted wide hT  DFIYV  
interest / function is concerned with / heart / impact / nature / role +#@)C?G,TF  
/ task of / kernel functions y7Sey;  
l the number of parts needed to }:zTz% _K  
l the above statement means that xZc].l6  
l the output data is passed to =_)yV0  
l the proposed method / underlying principle RASPOc/]   
l the recommendations made in this report, if implemented, should l.3|0lopX)  
l this information resides in |08'd5  
l this process is composed of ... different ... operation =Ul{#R z  
l along with the use of Xc H _Y  
l concerning general aspects of ]ur_G`B  
l due to F15Yn  
l for later use in generating..., X:kqX [\>  
l in turn, x<gP5c>zm  
l IT IS believed / noted / assumed / suggested / shown / quite !=SBeq   
evident / appears / implies that / intended for / of no important to DV5K)m&G  
l it can be claimed/concluded that hwj:$mR  
l it demonstrates the decisions required of wRsh@I<  
l it also provides information to .. i[7<l&K]  
l it becomes essential to s+ a} _a:  
l let ... be the probability that 2T&n6t$p  
l once... is written, it is compiled into... 29tih{ xx  
l suppose it is observed that -?}Z0e(w  
l this is because S:Y QVj  
.sBwJZ  
l this results in a ve&"x Nz<  
l upon completion of the ... analysis, QFX/x  
l when the knowledge is of mathematics or quantum physics, it will = 6H  
also be <l!{j?Kx  
recorded in books and papers bg/a5$t  
l selection of rules for using the tools, for generating operation fMl uVND  
plans, 3D^!U}E  
is another matter of preference, since practice varies greatly. ~/m=Q<cV  
l for the sake of convenience /+JHnedK  
l correct decision to be reach W:S?_JM  
l keeping the number of rules to a minimum. { \p&?  
l a good process plan will result exhibiting several characteristics: R^k)^!/$f  
l practical solutions Z(wj5;[G  
l because of rather small job lot sizes MfG8=H2#|  
l Backward reasoning can be used to answer the question "should 155vY  
milling tool be select" different level of knowledge in the realm of o8c5~fG1  
process planning
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沙发  发表于: 2007-11-14   
Very useful, thank u!
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