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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 V\^rs41$;  
*Wk y#  
S|! )_RL  
Beginning Z7RGOZQ}G  
1. In this paper, we focus on the need for ,JIjAm*2  
2. This paper proceeds as follow. ,73 kh  
3. The structure of the paper is as follows. '9^+J7iO(+  
4. In this paper, we shall first briefly introduce fuzzy sets and related vmdu9"H  
concepts 'qcLK>E  
5. To begin with we will provide a brief background on the taOD,}c|$  
Introduction y<mmv~=  
1. This will be followed by a description of the fuzzy nature of the e! V`cg0  
problem and a detailed presentation of how the required i5wXT  
membership functions are defined. 19-|.9m(  
2. Details on xx and xx are discussed in later sections. M mH[ 7R  
3. In the next section, after a statement of the basic problem, various J J@O5  
situations involving possibility knowledge are investigated: first, an eh_ {-  
entirely possibility model is proposed; then the cases of a fuzzy X,VOKj.%  
service time with stochastic arrivals and non-fuzzy service rule is @+II@[ _lT  
studied; lastly, fuzzy service rule are considered. &}}c>]m  
Review R2{y1b$l  
1. This review is followed by an introduction. 0'u2xe  
2. A brief summary of some of the relevant concepts in xxx and xxx is ph\KTLU  
presented in Section 2. o,l3j|1  
3. In the next section, a brief review of the .... is given. *Y !'3|T  
4. In the next section, a short review of ... is given with special regard j2O?]M  
to ... } :U 'aa  
5. Section 2 reviews relevant research related to xx. m(Ghe2T:  
6. Section 1.1 briefly surveys the motivation for a methodology of ,iKEIxA!  
action, while 1.2 looks at the difficulties posed by the complexity of W*A-CkrO  
systems and outlines the need for development of possibility H^y%Bi&^  
methods. iW.4'9   
Body JU^ {!u  
1. Section 1 defines the notion of robustness, and argues for its I| j Gu9G  
tMM *m  
importance. CZ2&9Vb9I  
2. Section 1 devoted to the basic aspects of the FLC decision-making .xJW=G{/  
logic. x3ds{Z$,>(  
3. Section 2 gives the background of the problem which includes xxx bvHF;Qywg  
4. Section 2 discusses some problems with and approaches to, <>3}<i<[&  
natural language understanding. 4w p5ghe  
5. Section 2 explains how flexibility which often ... can be expressed TI '(  
in terms of fuzzy time-window }yM /z  
6. Section 3 discusses the aspects of fuzzy set theory that are used in OcR6\t'  
the ... 6ww4ZH?j  
7. Section 3 describes the system itself in a general way, including .hI3Uv8[  
the ….. and also discusses how to evaluate system performance. {&tbp Bl#  
8. Section 3 describes a new measure of xx. ;3ZHm*xJx  
9. Section 3 demonstrates the use of fuzzy possibility theory in the }bj dK  
analysis of xx. E]z Td$v6  
10. Section 3 is a fine description of fuzzy formulation of human {Rc!S? 8  
decision. *>otz5]  
11. Section 3 is developed to the modeling and processing of fuzzy q ld2<W  
decision rules K9JW&5Q  
12. The main idea of the FLC is described in Section 3 while Section 4 =4RXNWkud  
describes the xx strategies. (r8R b*OP  
13. Section 3 and 4 show experimental studies for verifying the 6{2LV&T=u  
proposed model. 0bY}<x(;  
14. Section 4 discusses a previous fuzzy set-based approach to cost :?1 r.n  
variance investigation. /I[?TsXp  
15. Section 4 gives a specific example of xxx. |7@[+  
16. Section 4 is the experimental study to make a fuzzy model of Jt4&%b-T  
memory process. |\g=ua+h  
17. Section 4 contains a discussion of the implication of the results of G8}w|'0m  
Section 2 and 3. d*7nz=0&$  
18. Section 4 applies this fuzzy measure to the analysis of xx and z[kz [  
illustrate its use on experimental data. ]y*AA58;  
19. Section 5 presents the primary results of the paper: a fuzzy set sGx"j a +  
model .. 6n xX~k  
bLMN9wGOgK  
20. Section 5 contains some conclusions plus some ideas for further YE<_a;yh1  
work. FBit /0  
21. Section 6 illustrates the model with an example. .h)o\6Wq  
22. Various ways of justification and the reasons for their choice are CXqU< a&  
discussed very briefly in Section 2. y%.^| G  
23. In Section 2 are presented the block diagram expression of a (n'Mf  
whole model e1'<;;; L  
of human DM system }Dk*Hs^E  
24. In Section 2 we shall list a collection of basic assumptions which O`2;n.>\  
a ... scheme must satisfy. vby[# S|  
25. In Section 2 of this paper, we present representation and QdaYP  
uniqueness theorems for the fundamental measurement of fuzziness u<`CkYT  
when the domain of discourse is order-dense. wOH$S=Ba5,  
26. In Section 3, we describe the preliminary results of an empirical c8qsp n  
study w4YuijhW  
currently in progress to verify the measurement model and to vu^ '+ky  
construct membership functions. eR,ePyA;  
27. In Section 5 is analyzed the inference process through the two 0Da9,&D  
kinds of inference experiments... %5|awWo_?  
This Section $[5S M>e]  
1. In this section, the characteristics and environment under which =aM(r6 C  
MRP is designed are described. (=n{LMa  
2. We will provide in this section basic terminologies and notations o+e:H jZZ  
which are necessary for the understanding of subsequent results. msKWb311u  
Next Section @B bqYX  
2. The next section describes the mathematics that goes into the sTx23RJ9  
computer implementation of such fuzzy logic statements. #*QnO\.  
3. However, it is cumbersome for this purpose and in practical 9ohaU  
applications the formulae were rearranged and simplified as 9r,)Bw!RP  
discussed in the next section. ~(Wq 5<v  
4. The three components will be described in the next two section, :\I88 -N@'  
and an example of xx analysis of a computer information system will S> AM?  
kXw&*B-/  
then illustrate their use. .EJo 9s'  
5. We can interpret the results of Experiments I and II as in the G.CkceWRn  
following sections. ]3B8D<p  
6. The next section summarizes the method in a from that is useful t= =+SHGP  
for arguments based on xx hfUN~89;  
Summary x aQO=[  
1. This paper concludes with a discussion of future research 'Em5AA`>  
consideration in section 5. /G}TPXA  
2. Section 5 summarizes the results of this investigation. H{ Fww4pn  
3. Section 5 gives the conclusions and future directions of research. @)"= b!q=  
4. Section 7 provides a summary and a discussion of some extensions TGUlJLT  
of the paper. lOk'stLNa&  
5. Finally, conclusions and future work are summarized 9 b?Nlk8d  
6. The basic questions posed above are then discussed and (MfPu8j  
conclusions are drawn. $^[^ ]Q  
7. Section 7 is the conclusion of the paper. i@Vi.oc4[  
Chapter 0. Abstract uvbXsO"z]]  
1. A basic problem in the design of xx is presented by the choice of a ElBpF8xJ|o  
xx rate for the measurement of experimental variables. J. %%]-f=&  
2. This paper examines a new measure of xx in xx based on fuzzy o*\Fj}l-  
mathematics which overcomes the difficulties found in other xx gK8E |f-z  
measures. X:3W9`s )*  
3. This paper describes a system for the analysis of the xx. H Pvs~`>V  
4. The method involves the construction of xx from fuzzy relations. uH"W07  
5. The procedure is useful in analyzing how groups reach a decision. QC/%|M0 {  
6. The technique used is to employ a newly developed and versatile o \r6 iO  
xx algorithm. *Fb|iR  
7. The usefulness of xx is also considered. PG@Uygahu  
8. A brief methodology used in xx is discussed. VB(S]N)F^  
9. The analysis is useful in xx and xx problem. 6qAs$[  
10. A model is developed for a xx analysis using fuzzy matrices. ;|a,1#x  
11. Algorithms to combine these estimates and produce a xx are p`oSI}ZwB  
;";#{B:  
presented and justified. RxeyMNd  
12. The use of the method is discussed and an example is given. R WfC2$z  
13. Results of an experimental applications of this xx analysis "}91wfG9  
procedure are given to illustrate the proposed technique. #YEOY#  
14. This paper analyses problems in x JXPt m  
15. This paper outlines the functions carried out by ... #RN"Ul-B|  
16. This paper includes an illustration of the ... `fL81)!jI#  
17. This paper provides an overview and information useful for 1I^uq>r  
approaching @U)k~z2Hk  
18. Emphasis is placed on the construction of a criterion function by {Xj2c]A1  
which the xx in achieving a hierarchical system of objectives are 3M@!?=| U  
evaluated. !}+rg2  
19. The main emphasis is placed on the problem of xx @0v%5@  
20. Our proposed model is verified through experimental study. _--kK+rU  
21. The experimental results reveal interesting examples of fuzzy H.H$5(?O  
phases of: xx, xx ]CL9N  
22. The compatibility of a project in terms of cost, and xx are likewise ue/GB+U  
represented by linguistic variables. Bkq3-rX\  
23. A didactic example is included to illustrate the computational $h)VKW^\  
procedure K]bw1K K  
Chapter 1. Introduction Q*GJ REC  
Time 5VLJ:I?0O  
1. Over the course of the past 30 years, .. has emerged form intuitive }BR@vY'd  
2. Technological revolutions have recently hit the industrial world 'IykIf  
3. The advent of ... systems for has had a significant impact on the v[}g+3a  
4. The development of ... is explored 0</]Jo%  
5. During the past decade, the theory of fuzzy sets has developed in a )]W|i9  
variety of directions 5PCMxjon  
6.The concept of xx was investigated quite intensively in recent years _$f XK  
7. There has been a turning point in ... methodology in accordance =ghN)[AZV  
with the advent of ... U`-]U2 "  
8. A major concern in ... today is to continue to improve... n}T;q1  
9. A xx is a latecomer in the part representation arena. 9pPohR*#V  
;`(l)X+7  
10. At the time of this writing, there is still no standard way of xx %^){)#6w  
11. Although a lot of effort is being spent on improving these  55<f  
weaknesses, the efficient and effective method has yet to be Vw P+tM  
developed. "j<l=l!  
12. The pioneer work can be traced to xx [1965]. WF!u2E+  
13. To date, none of the methods developed is perfect and all are far = ;!$Qw4  
from ready to be used in commercial systems. = MP?aH [  
Objective / Goal / Purpose o/6 'g)r*  
1. The purpose of the inference engine can be outlined as follows: N-~Uu6zr  
2. The ultimate goal of the xx system is to allow the non-experts to z;F6:aBa  
utilize the existing knowledge in the area of manual handling of loads, bL)7 /E  
and to provide intelligent, computer-aided instruction for xxx. @ 7WWoy  
3. The paper concerns the development of a xx  IeZgF>  
4. The scope of this research lies in s>VpbJ3S  
5. The main theme of the paper is the application of rule-based 6n  
decision making.  Q9!T@  
6. These objectives are to be met with such thoroughness and y!,Ly_x$@  
confidence as to permit ... H f g2]N  
7. The objectives of the ... operations study are as follows: K< ;I*cA X  
8. The primary purpose/consideration/objective of !MNnau%O  
9. The ultimate goal of this concept is to provide <EHgPlQn  
10. The main objective of such a ... system is to YKk*QcAn  
11. The aim of this paper is to provide methods to construct such eMDO;q  
probability distribution. A c'0  
12. In order to achieve these objectives, an xx must meet the #KOr-Yg|U  
following requirements: a*oqhOTQ  
13. In order to take advantage of their similarity 7tEkQZMDI  
14. more research is still required before final goal of ... can be V2&O]bR  
completed N"+o=nS  
15. In this trial, the objective is to generate... 9MI~yIt`L  
16. for the sake of concentrating on ... research issues ^>3q@,C]c  
17. A major goal of this report is to extend the utilization of a recently C }= *%S  
developed procedure for the xx. 3/j^Ao\fw  
G1vg2'A  
18. For an illustrative purpose, four well-known OR problems are WFYbmfmV  
studied in presence of fuzzy data: xx. [i&EUvo  
19. A major thrust of the paper is to discuss approaches and nNN~ Z'bG  
strategies for structuring ..methods m#^ua^JV  
20. This illustration points out the need to specify Vg>\@ C .s  
21. The ultimate goal is both descriptive and prescriptive. H;eGBVi  
22. Chapter 2. Literature Review {`Jr$*;  
23. A wealth of information is to be found in the statistics literature, W$I^Ej}>$  
for example, regarding xx (iT?uMRz  
24. A considerable amount of research has been done .. during the 7;w x,7CUq  
last decade )37.H^7  
25. A great number of studies report on the treatment of f4h|Nn%;  
uncertainties associated with xx. aLWNqe&1  
26. There is considerable amount of literature on planning vq.~8c1  
27. However, these studies do not provide much attention to &{x%"A q/  
uncertainty in xx. g?}$"=B   
28. Since then, the subject has been extensively explored and it is dv_& ei  
still under investigation as well in methodological aspects as in BeNH"Y:E  
concrete applications. n' XvPV|  
29. Many research studies have been carried out on this topic. :nt 7jm,  
30. Problem of xx draws recently more and more attention of system 6<uJ}3  
analysis. V[w Y;wj  
31. Attempts to resolve this dilemma have resulted in the 7eM:YqT/#  
development of 'R{Xq HP  
32. Many complex processes unfortunately, do not yield to this = )2sehU/  
design procedure and have, therefore, not yet been automated. tiTJ.uz6  
33. Most of the methods developed so far are deterministic and /or Nx%]dOa  
probabilistic in nature. 3k#?E]'  
34. The central issue in all these studies is to $s*nh>@7  
35. The problem of xx has been studied by other investigators, X J+y5at  
however, these studies have been based upon classical statistical yU e7o4Zm  
approaches. xD:t$~  
36. Applied ... techniques to go6XUe  
37. Characterized the ... system as SRUg2)d  
2/T4.[`t  
38. Developed an algorithm to CJDnHuozc  
39. Developed a system called ... which H}Jdnu|ko  
40. Uses an iterative algorithm to deduce *an^ 0  
41. Emphasized the need to B8f BX!u/  
42. Identifies six key issues surrounding high technology (O&R-5m  
43. A comprehensive study of the... has been undertaken ]uikE2nn  
44. Much work has been reported recently in these filed w,6zbI/  
45. Proposed/Presented/State that/Described/Illustrated/ /K@_O\+;Q  
Indicated/Has shown / showed/Address/Highlights " h D6Z  
46. Point out that the problem of "vH>xBR[%  
47. A study on ...was done / developed by [] $X>$)U'p&-  
48. Previous work, such as [] and [], deal only with L"_ l(<g  
49. The approach taken by [] is dN8@ 0AMSf  
50. The system developed by [] consists 75^U<Hz-3{  
51. A paper relevant to this research was published by [] >dr34=(  
52. []'s model requires consideration of... 0LjF$3GpZ  
53. []' model draws attention to evolution in human development T[?toqkD>z  
54. []'s model focuses on... AjW5H*  
55. Little research has been conducted in applying ... to dr54 D  
56. The published information that is relevant to this research... JKXb$  
57. This study further shows that Y`U[Y Hx  
58. Their work is based on the principle of /qKO9M5A  
59. More history of ... can be found in xx et al. [1979]. PQ#zF&gL9t  
60. Studies have been completed to established 77]6_  
61. The ...studies indicated that )Rlh [Y& r  
62. Though application of xx in the filed of xx has proliferated in si!jB%^  
recent years, effort in analyzing xx, especially xx, is lacking. |e]2 >NjQa  
Problem / Issue / Question g5\EVcHkz  
63. Unfortunately, real-world engineering problems such as v J_1VW  
manufacturing planning do not fit well with this narrowly defined Y*KP1=Md  
model. They tend to span broad activities and require consideration d:_3V rRZ  
of multiple aspects. ]y **ZFA  
64. Remedy / solve / alleviate these problems 2qN|<S&  
67. ... is a difficult problem, yet to be adequately resolved w.:fl4V  
ag7(nn0!  
68. Two major problems have yet to be addressed  av!'UZP  
69. An unanswered question v5/2-<6x  
70. This problem in essence involves using x to obtain a solution. _[kZ:#  
71. An additional research issue to be tackled is .... ,lUroO^^  
72. Some important issues in developing a ... system are discussed egd%,`  
73. The three prime issues can be summarized: ij|+MX  
74. The situation leads to the problem of how to determine the ... NCKhrDd&  
75. There have been many attempts to ^p2 _p9  
76. It is expected to be serious barrier to 9[9 ZI1*s  
77. It offers a simple solution in a limited domain for a complex 'A#bBn,|  
problem. "lT>V)NB'  
1. There are several ways to get around this problem. kzb%=EI  
2. As difficult as it seems to be, xx is by no means new. v< Ozr:lL  
3. The problem is to recognize xx from a design representation. Vi5&%/Y  
4. A xx problem can trace its roots to xx. $Rd]e C  
5. xx [1987] used a heuristic approach to simplify the complexity of zfBaB0P  
the problem. br[n5  
6. Several problems are associated with them. Z4Z R]eD  
7. Although some progress has been made in this area, at least two EYaX@|)  
major obstacles must be overcome before a fully automated system 8YLS/dN0 w  
can be realized. \qA^3L~;5  
8. Most problems in practice are complicated Cr;d !=  
9. More problem surface here. }vof| (Yh  
10. Hamper effort toward a xx system h]w5N2$}?  
11. In order to overcome the limitations due to incomplete and pRTdP/(OQ  
imprecise xx knowledge, a xx program has been developed, which * SHQ[L4{  
bases its knowledge upon the statistical analysis of a sample /q eSR3WC  
population of xx }w%W A&"W  
12. The above difficulties are real challenges faced by researchers $mF(6<w  
attempting to develop .o_?n.H'&  
13. This type of mapping raises no controversy to the issue of L( ni6-  
membership function determination. L[LgQ7es Q  
14. However, attempts to quantify the xx have met both theoretical !arTR.b\  
and empirical problems. eCI0o5U  
S^/:O.X)c,  
15. It has become apparent that in order to apply this new h=`1sfz  
methodological framework to real-world problems and data, we have d O'apey  
to pay attention to the problems of xx and xx. j1hx{P'  
Chapter 3. Proposed methodology [ ]LiL;A&  
Assumption w*3DIVlxL  
1. In the case when the assumption of a xx seems to be too I$#)k^Q  
restrictive or inadequate, the formulation with Fuzzy termination r!,/~~m T  
time, i.e. given by a fuzzy set in the space of control stages, may be 3~uWrZ.u  
applied. iI.d8}A  
2. We assume here the fuzzy constraints to be state-dependent, and *\5o0~~8J  
the fuzzy goal to be the same for all the control states, xx, which <s7 37Rl  
stems from the problem's nature. oO 8opS7F  
3. An approach to the solution of this problem is presented under the kl90w  
assumption that the sampling rate Decision can be made prior to the hG3p"_ L  
execution of the experiment, as opposed to being made while the V(LE4P 1  
experiment is in progress. nP+]WUnY  
4. Another assumption made above is that there are precise odds at ,aLdW,<6  
which the expert is indifferent. 8pQ:B /3=  
5. Main simplifying assumptions are: @jp}WwC/  
6. This, in our view, is a questionable assumption. )U':NV2  
Outline / Structure / Module e[ 8A dE  
1. An outline of the research EEJsNF  
2. Information is incorporated within the scheme *P mk1h2  
3. Is built into ... structure !UV/p"CfX  
4. A nice modular structure. tHj |_t  
5. The principles of ... are applied as modularized criteria *k7vm%#ns  
Classification pOz4>R  
1. A xx system comprises three main components: D#~S< >u@  
2. Must decompose the original .. into a set of .. tUp'cG  
3. Consists of the following steps: `PY >p!E  
4. This is summarized in the following steps: @fVCGV?'  
I9 R\)3"  
5. Can be broadly classified into the following areas: i7m=V T  
6. Can be characterized by its function of effectively processing the M]Y72K^  
7. Can allow further breadth of application of ...into more jC)lWD  
8. The following steps should be followed $)5-}NJf'  
9. xx can be classified by a different ways. N!`8-ap\^  
10. Based on the xx, one may classify xx into the following: ?B&@  
11. This catalog may change due to wear, breakage, and purchasing. XgfaTX*  
System P0En&g+~  
1. Unlike many conventional program, expert systems do not J01Y%W  
usually deal with problem for which there is clearly a right or wrong 0V:DeX$bZ  
answer. QqC4g]  
2. The system consists of both ... and ... (j%d{y4  
3. The system has a hierarchical modular architecture organized on Vo\RtM/6{  
three levels. eqyZ|6  
4. expert system domains are area of expertise n>w/T"  
5. To develop a xx system for xx, the following factors must be ::xH C4tw  
considered: Ef1R?<  
6. The system has been developed / designed to determine Y{ho[%  
7. The system has proven to be able to t ._PS3  
8. The domain in which an expert system operates is a particular Zm:Wig ,a  
domain 0RLyAC|  
9. The system comprises a ... with aN.t) DG}J  
10. The system is [feature-oriented ] / based on the ... technique &?@gUk74"  
11. The system environment must be relatively stable #L{+V?  
12. The system is utilized to generate, load, store, update and `>1"v9eF  
retrieve ... K8`M~P.  
13. The development of a xx system has two stages: xx stage and xx cm8-L[>E  
stage. gDw:Z/1X`  
14. The most essential part of .. system is the ... n.{+\M6k  
15. The successful developments in ESs have made them an hSZ0 }/  
important tool in the development of >b |TaQ  
16. An automated system was developed for !OJ@ =y`i  
17. In this case, the system can be considered to be generative. qIwI]ub~  
DRo@gYDn  
18. An interactive automatic ... system No)v&P%  
19. A …. is commonly thought of as a truly integrated .. system |S5N$[  
20. Should be capable of being generated from a ... system 41<.e` {  
21. xx is an important part of the integrated system. }}3*tn<6  
22. The model consists of four rule bases, each of which addresses a K_iy^|0)5]  
separate problem in the hierarchy of scheduling decision. @15%fX`*o  
23. The rule bases are linked to each other in a chin-like manner in ,`/J1(\ nd  
the sense that the consequent of one rule base constitutes a part of Ve,_;<F]S  
the antecedent of the next rule base. *f~X wy"  
24. The rule base consists of all possible combinations of the H( `^1  
linguistic terms associated with the linguistic variable of the -{>Nrx|  
antecedent of a rule. WV5gH*uUa  
Computer System DRD%pm(  
1. The system has been implemented using Prolog language in an D-.XSIEMu  
MS-DOS environment. Prolog was chosen because it offers a well ?aInn:FE  
known and flexible environment in which fuzzy reasoning may be 5= g{%X  
easily implemented. pR8]HNY0  
2. The current version of the xx program when compiled with <lM]c  
WATFOR77 results in an executable code of about 270K bytes. ,UQ4`Mh^L  
Typical run time, when run on a XX computer (an IBM compatible }%EQ  
machine) operating at 4.77 Mhz with 640K RAM, ranges from 10 min M:OY8=V  
to 2h, depending on the size (or complexity) of the problem. wO!k|7:Z  
3. Time consuming procedures have been implemented in *1V}vJvi  
C-language and directly linked to the Prolog environment. 7-+X -Y?  
4. The xx process, once the xx's data has been entered, requires VrhG=CK  
approximately 180 seconds. hq/k}Y  
5. It should be noted that the computation was done with a 20 Hhz, + )?1F  
80386..209;based microcomputer equipped with a 80387 math E.?|L-fy  
co-processor. qFmvc  
6. The computer programs used for the analyses, one based on the xx -san%H'  
method and the other based on the new method, were written in A>^\jIB>  
FORTRAN with a compiler that supports the math co-processor. #rzq9}9tB  
7. Lisp, Prolog give maximum flexibility but also maximizes *J@2A)ZDv0  
AFL*a*  
development time. Oh<[8S7]C  
l Internal representation is the way a model is represented in the |sHIT<=m  
computer. aYe,5dK>  
l An interactive menu-driven procedure is used in this study GiB3.%R`  
l Shell can be develop very fast at the cost of time fairly severe gOa'o<  
limitations. [ V()7  
l While there is no measurable saving of time for the case involving k( 1rp|qf  
five criteria, the saving is dramatic for the case involving 10 criteria BOn2`|oLuF  
-- the computation time reduces from 10 hr 40 min to about 1 min. G@h6>O  
l This combination is being implemented in an objected-oriented 2t\a/QE)E  
programming environment (Smalltalk-80 system) to solve problems qHg\n)R"x!  
encountered in construction xxx. g^"",!J/  
Method / Approach / Study / Process Model / Equation /Algorithm / "ji4x y  
Rule / Formula / Technique JAen= %2b  
l A discussion is presented of a problem-solving system vn~DtTp/  
l To improve the efficiency of the method, the following approach <r.f ?chf  
may be applied. S1wt>}w0$  
l In order to an investigation was made to find the causes of the z}yntY]n  
l Although large collections of rules and equations have been 3zY"9KUN  
complied, none are generally accepted ry3;60E \)  
l This approach will be explained and discussed thoroughly in the il\#R%';5  
body of the report. ^o,Hu#  
l This can be accomplished by 8vz9o <I  
l This algorithm to compute the total cost can be described step by T Ll*gED  
step as follows: *-T3'beg  
l The above preliminary analysis has provided important ~UB@IV6O  
information 0FsGqFt  
l Various methods have been proposed for selecting an optimum... Wk$[;>NU3  
l These concepts have been applied to ,sP7/S)FR  
l On the basis of the concept mentioned above, c^}gJ  
l This can be achieved by xKEHN gen  
l This fact suggests that a new concept Duj9PV`2  
l This was accomplished by taking ... Yq4_ss'nB  
prb;q~  
l The preparatory stage is very time consuming process. 8#2PJHl;  
l Test are performed for validity, completeness, and compatibility thOQcOf0$  
l There is little hope of achieving successful ... U%"c@%B0  
l There has been an increasing awareness of the potential of using -OZXl  
most ..so far made have not taken this approach, with the exception  r75,mX  
of E@hvO%  
l Only a few studies can be found. HGs.v}@&  
l It is a very tedious process to go through X_Is#&6;  
l It is only when .. has been completed that .. may be effected 66fvS}x  
l The entire interpretation process is conducted in one's head. 3%|LMX]M5_  
l These approaches are sometimes very tedious. o?b$}Qrl  
l Several techniques can be used %L:e~*  
l A polynomial parametric model can be written as [the ox{)O/aj  
following]/[follows]: L0qo/6|C  
l A xx model is constructed/formulated using xx. `]#DdJ_|  
l A xx model represents an xx by its xx. K:c5Yq^  
l A process decision model captures the logic essential to 8GN0487H  
l From the equation above, xx is equal to the summation of xx b4Zkj2L  
times the ... 5.0BaVwi  
l The validity of a xx model can be checked using Euler's formula. 0yfmQ=,X  
l Given a model, one can mathematically determine whether ... or ... aDm$^yP  
l Equations for xx need to be derived and implemented in the U2$e?1y  
system. $fPf/yQmC  
l A number of heuristic rules have been developed for "uDLty?*k  
l Optimum .. techniques can be made more reliable by ... so that i d\0yRBt  
l An algorithm based on the characteristic ... is used to determine eY"y[  
l Euler's formula states the following: RvZi%)  
l The completed model should agree with the formula. BLgmF E2  
l For manufacturing purposes, a detailed and precise model of the gs_"H  
object is necessary oil s;*q  
l Engineering design models are very well defined; therefore, 'C]zB'H=  
l To keep the domain narrow enough to be implementable, yet wide 282 m^ 2  
enough to QxwZ$?w%  
be useful. "(F>?pq  
_*0!6?c  
Point of View y>'^<xk  
l from an implementation standpoint, J Xo_l  
l From the point of view of this application, >k<.bEx(A  
l From this point of view, Zadeh suggested an inference rule named "G)-:!H  
xxx (CRI for short). afqLTWU S  
l Information is the meaningful interpretation and correlation of T)6p,l  
some aggregation of data in order to allow one to make decisions. ~e@ QJ=r  
l From a practical point of view, the computational aspects of an *LOpbf  
FLC require a simplification of the fuzzy control algorithm. 1Cki}$k@  
l The use of a hammer to insert screws, although partly effective, M\ vj&T{k  
tends to distort, destroy, and generally defeat the purpose of using a %L.,:mtq)  
screw [Kusiak AI Implications for CIM p.129] )TnxsFC  
Justification rBye%rQRq  
l We choose the so called xx in our experiment because it has mg[=~&J^  
received wide acceptance and can  Aa[p7{e  
l Prolog was chosen because it offers a well known and flexible d&&^_0O  
environment in which fuzzy reasoning may be easily implemented. &, hhH_W  
l The rationale behind this is that it can be much easier for an AYeA)jk  
estimator to rate a cost as high than to attempt to place a dollar j!B+Q  
value on the estimate. U=\ZeYK.  
l This strategy has been widely used in fuzzy control applications 8G; t[9  
since it is natural and easy to implement. sDTCV8"w  
l A function definition expresses the membership function of a ~Os"dAgZFY  
fuzzy set in a functional form, typically a bell-shaped function, etc. h-+9Bv]  
Such functions are used in FLC because they lead themselves to  Iz*'  
manipulation through the use of fuzzy arithmetic. }]$%aMxy T  
l It should be noted that in our daily life most of the information on K??%Qh5l+C  
which our decisions are based is linguistic rather than numerical in ;XNe:g.CR  
nature. Seen in this perspective, fuzzy control rules provide a natural zPEx;lO$  
framework for the characterization of human behavior and decisions PVH^yWi n  
analysis. +ObP[F  
l Many experts have found that fuzzy control rules provide a #n2'N^t  
.Qm"iOyM  
convenient way to express their domain knowledge. This explains "aIiW VQ  
why most FLCs are based on the knowledge and experience which j9)P3=s  
are expressed in the language of fuzzy "if-the" rule. @GDe{GG+  
Chapter 4. Examples 3}e-qFlV8,  
Example/ Data kW0|\  
l The data used in the following example was taken from an 4+e9:r]  
experiment in which xx was measured between x and x using a xx {XH!`\  
technique. n[8ju,=  
l The data consists of over xx measurements.  Z 6KM%R  
l An example of xx is discussed and the control rules of xx are @[h)M3DFd  
compared with a xx Fka&\9i  
l Examples of complex processes to which this technique may be "| cNY_$&s  
applied are xx, xx, etc. EvSo|}JA[  
l The following example is constructed only for the purpose of piKYO+;W'  
illustrating the computational procedure discussed. nt. A X  
l This example clearly demonstrates that the profile of an individual -x)Oo`  
xx, or a very small group of xx, with no enough data to be studied C1&~Y.6m  
statistically, can be meaningfully analyzed by fuzzy possibilistic _^K)>  
methods. PDQC^2Z  
l There is no space here to go into detail on all these methods, but 9eO!_ a^  
deserve a mention and the bibliography will point to detailed "[M,PI!B  
references for those wishing this level of detail. C#{s[l\]  
l Note that the golf ball spotting example is used throughout the 29{Ep   
paper. j_H"m R  
Comparisons ?.Mw  
l As well, the pros and cons of these representations from a process h M$K?t  
planning point of view will be discussed. +g/TDwyVH  
l The method of using xx to implement xx described by Zadeh F/,K8<|r>  
(1973) appeared more suitable &/QdG= r+  
l As discussed [in the previous section]/[preciously], _+Tq&,_:o  
.m%/JquMFM  
Relation ffyDi1Q  
l We can not invert F' directly because it defines a many-to-one KFQ4vavNh  
mapping. t8SvU  
l The relationships appear very complicate @CGci lS=  
l Lifting tasks involve complex and imprecise relationship between u\-WArntc  
the task variables and the human operator's characteristics. |,!]]YO.V  
l These methods are based on the relationship between ... and ... qyi5j0)W  
l The fundamental concept of a fuzzy rating language is that we can 3"v k$  
establish a relationship among terms such as high, medium, and low, EJC{!06L'/  
and then modify these relationships. Pnf|9?~$H  
l This article will thus mention the latter as well as the former. +c4-7/kE  
l The former two bear a close relation to a fuzzy Cartesian product. EFpV  
Importance Dsq_}6 l{  
l The emphasis is on an implementation of a general approach to Y:o\qr!Y  
rule based decision making. JH3$G,:zM  
Consideration / Attention o8<0#W@S  
l Careful evaluation is necessary to ensure 73/DOF  
l Such a formulation does not change further considerations. TpnJm%9`)t  
l Considerable attention has been paid to _FpZc ?=  
l Attention should be paid to an important finding of this RbOEXH*]  
investigation. "&$ [@c  
l Caution should be exercised in this process to avoid ... 7Iz%Jty  
l Primary consideration is given to ... components, though others #eRrVjbo  
can be accommodated ,<Ag&*YE4  
l After ... has been defined by ..., a carefully analysis is carried ,=TY:U;?  
out/performed to determine =7^rKrD  
l A number of factors such as ...need to be taken into consideration a7$]" T 7  
before making the appropriate decision. cy_'QS$W   
l It should be noted that h?Y->!'  
l It is important to point out that ... /#<R  
l These considerations have heightened interest in the possibility of ^|^ywgK  
providing ... U-~6<\Mf  
k4n 4 BL  
l We should stress the fundamental importance of the xx cj[a^ ZH  
Chapter 5. Results. d+caGpaR  
Advantages / Disadvantage yT$CImP73  
l One of the major advantages of this new measure of xx is that it Xu.Wdl/{Ra  
can be applied to the experimental study of Gt4/ax:A@  
l One advantage of using a .. is the ease of preparing it. kT-dQ32  
l The xx system is versatile 9 #;GG3  
l It has a very fast decision making process @PQ% xcOC7  
l All the algorithms involve mostly logical operations. Pv#Oea?  
l It can be easily and without additional cost implemented in a xM+_rU M|h  
microprocessor-based environment. Vx Vpl@  
l It can reduce the waste of designing from scratch. OfE>8*RI4  
l The advantages of using a xx to represent xx are the following: bHKTCPf  
l However, xx is not without its shortcomings. C {*' p+f  
l In most cases, the xxx shows an improvement over the existing 7 I$~E  
xxx. *+ i1m `6Q  
l Compared to the existing xx, the impacts of the xx are generally H1t`fyri2  
reduced by 5% to 9%. O|} p=ny  
l The "best case" results shows a savings of 6% to 9%. 7Mj:bm&9  
l Most of the existing works based on xx approach can only xCQLfXK7  
recognize a xx . XfYbWR  
l Most of the above methods are computational expansive and WR.>?IG2E  
limited to xx. _'*Vcu`Y  
l Some other advantages of xx are the following: c 98^~vR]]  
l The problem is the limitation of this method to a limited domain of 7W MF8(j5  
parts. cr`NHl/XF  
l It proved limited in application because it demanded precision in mB5Sm|{  
system modeling that was impossible in practice. L%`MoTpK q  
l There are advantages to be gained in the structuring of costs and 1a]P+-@u[  
benefits, the use of xx, %Q080L tet  
l The disadvantages of this method are also disadvantages of B'v~0Kau  
conventional xx approaches. 5-RA<d#  
r [E4/?_  
l This combines the best features of both techniques h J H  
l Hopefully, this tool can be as the reference framework of for M{jJ>S{g  
developing a xx platform, and helping the administration, marketing, ]@6L,+W"  
and knowledge management activities in virtual communities. v8y !zo'  
Results  X@Bg_9\i  
l An improvement on the result shown above can be made by based 8xb({e4  
on the data provided ET[>kn^#  
l Discussion of these theories is beyond the scope of this review LL_@nvu}M  
l Based on the information contained in this O9P4r*prA  
l The result can be categorized into nine classes J(Fk@{!F.*  
l The results are illustrated by an example 4d8}g25C  
l The experimental results for each xx time are reported in Table 2. Sw.Kl 0M  
l From the results obtained so far, it seem that jfU$qo!gi  
l Because of the inaccuracy of the ..., a conclusion cannot be drawn }1mkX\wWP  
as {yFMY?6rf  
l Although much effort has been made to., this reality is far from Hbl&)!I  
completion. E^B3MyS^^  
l The results indicate that the total benefits are higher than the HBm(l@#.  
total costs. ()ww9L2  
l Their results may then serve as guidelines for lower level models, ~IFafAO&  
less fuzzy and more detailed. mYFc53B  
Chapter 6. Conclusion * >k6n5%  
l From the discussion, one may conclude that ... -U{!'e8YiN  
l Form the above discussion, the conclusion can be reached that ~g}blv0q+B  
l The conclusions drawn are also valid RREl($$p  
l In conclusion to this, it becomes obvious that the problem of xx qu0 q LM  
lies not only in... I2gSgv%  
l We have attempted to introduce some concepts associated with a ~xJ ^YkyH  
theory of j >3Fwg9V  
xx based on fuzzy sets. `( 'NH]^  
l Considerable more work, hopefully, will be done in this area 44pVZ5c  
l A fuzzy set procedure is proposed to solve xx selection problems b_)SMAsO7  
#!>`$  
interwoven with imprecise data 1ZXRH;J40  
l Employing the compositional rule of inference, the assessment of ypNeTR$4  
the xx compatibility in achieving prescribed xx projectiles in any 9hgIQl  
level of the hierarchy is made possible. Lr Kx  
l This paper has presented a theoretical and experimental study of ]d*O>Pm  
the xx process and xx concept. [6?x 6_M  
l The experimental research results will hopefully serve as useful PiLLUyQx  
feedback information for improvements for xx work. I*KJq ?R  
l The scope of this contribution was to introduce a xx method. _zLEHEZ-  
l In general, fuzzy sets theory provides an alternative foundation N@"e^i  
for xx analysis in a fuzzy environment. I]B9+Z?xo  
Future Research iig&O(,  
l Thus, first extension of the approach could be, [-\DC*6  
l Present some cues for a further approach from Fuzzy Sets Theory v%QC p  
application to xzRC %  
l Some improvements to the scheduling aspect of the model may [n +(  
be brought through additional levels in the hierarchy for more R=W$3Ue~,  
detailed representation of the scheduling activity. G~Nh BA9  
Tables and Figures +EZr@  
l Figure 7-1 sketches these relationships. QzYaxNGv  
l The graphical representation of these functions is shown in Figure kEg~yN  
1. '=IuwCB|;  
l The xx may be depicted as in Figure 1. ltd'"J/r  
l Figure x shows the schematic diagram of the 5 hB2:$C  
l Figure 1 though 2 provide a ... that =OR&,xt  
l the architecture of this expert system for .... is illustrated in Figure !Tu.A@  
2. dTVM !=  
l Figure 2 gives the outline of an ... system ) |hHbD^V  
l Table shows the cr{dl\ Na  
l as shown in Table 1 and 2 ]j(Ld\:L  
l This concept is illustrated in Figure 2 Q1 vse  
l At the top of Table xx are shown two blocks of data. [92bGR{  
vaZ?>94  
l Each table or matrix has constructs xx through xx as y)Lyo'`  
row-headings, tWdP5vfp  
xx through xx as column-headings. yNQ 9~P2  
l A table of .. is developed and significant recommendations are {K2F(kz?T  
made. POQ1K O  
CONJUGATION ZP %Bu2xd  
To Indicate Addition o6 [i0S  
l additionally, again, also, and then, as can be easily understood, /XW,H0pR  
besides, equally important, especially, finally, for the same reason, ?rV c}  
first, further, furthermore, in addition, last, likewise, moreover, next, fKT(.VN q5  
second, third, too, evidently, obviously, roughly speaking, broadly  g:c @  
speaking hO:X\:G  
To Indicate Cause and Effect 2!Ex55  
l accordingly, as a result, consequently, for this reason, hence, in |m7`:~ow  
short, otherwise, then, therefore, thus, truly 8%#uZG\}  
To indicate Comparison 1vxh3KS.  
l in a like manner, likewise, similarly , alternatively l@YpgyqaL  
To Indicate Concession iJE|u  
l after all, although this may be true, at the same time, even though, `P4qEsZE>`  
even so , I admit, naturally, of course f:g<Bz=u)*  
To Indicate Contrast 9P)<CD0  
l and yet, at the same time, but, for all that, however, yet, in fact, in !ZV#~t:)  
contrast, in the real life, in spite of, nevertheless, notwithstanding, aa1XY&G"!  
normally, on the contrary, on the other hand, still, traditionally, 0?t!tugG  
rather, unfortunately, ;h3*MR  
To Indicate Time Relationships: bvR*sT#rg  
after a short time, afterwards, as indicated earlier, as long as, as soon @kwD$%*0  
(A &@ <  
as, at last, at length, at the moment, at that time, at the same time, E(U}$Zey  
before, earlier, currently, immediately, in the meantime, in recent l7J_s?!j  
years, lately, later, meanwhile, often, of late, presently, recently, )x|BY>  
soon, shortly, since, thereupon, temporarily, therefore, until, when, L{fP_DIa  
while nZ7v9o9  
To Indicate Special Features or Examples: N<>dg  
for example, for instance, incidentally, indeed, in fact, in other words, X7c*T /  
in particular, in practice, specifically, that is, to illustrate, in this {Rj'=%h  
respect, theoretically, as mentioned before / above Ft.BfgJ$  
To Indicate Summary: kdYl>M  
in brief, in conclusion, in short, in summary, on the whole, to g&E_|}u4  
conclude fp![Pbms.  
, in general, to summarize, to sum up, as a result, ultimately, H@j^,  
VERB PHASE QT&{M #Ydn  
l build a .. model V!<#E)-?<  
l build up the key link -% f DfjP  
l began a new era in ... "\=_- `  
l can be regarded as / achieved / used to/for / found / obtained Rt:PW}rFf  
through 6~/H#8Kdn  
l can result in 5~"=Fm<uD  
l carries out ... tasks pq&c]8H  
l production information in order to simultaneously G9[-|[j^N  
l contains all information necessary to describe <XagkD  
l do not make use of production information >dl!Ep  
l deals with i=a LC*@  
l end with failure >`uSNY"tO  
l fetch the information from the model directly / fq6-;co+  
l has great potential / yet to be resolved / spurred the V"ZbKV +[  
development of / $OD5t5eTsM  
been recognized as K0g:Q*J-  
l BE aimed at / built up / carried out by / essentially concerned +*DX(v"BH  
;^*!<F%t9R  
with / considered to be the key technology / associated with each v^pP& <G  
feature of a compo 20qVzXi  
site component / cable of / currently implemented for / jQ)>XOok  
demonstrated by an example / finally reached / made equal to / pQY>  
equivalent to / more suitable to / oriented to / interpreted as / ,Tl5@RN  
pointed out / potentially of great benefit in the complex task of / $hQg+nY.  
shown in / used to effectively guide the search }$1 ;<  
l makes use of 0Y 2^}u@5  
l make up F/SsiUBS  
l meets the needs of real life production,/ the current demands h$k3MhYDes  
placed upon it ha=z<Q  
l must be justified 8!GLw-kb  
l point out ek)(pJ(+#  
l play an important role N{t :%[  
l relates to Xh"iP%  
l rely on _%vqBr*   
l satisfy the needs c$kb0VR  
l determine the total requirements for the ... ~UC/|t$  
l uses ... as a key to search for... Q;O)>K  
l without relying on ~!F4JRf  
l will be available/ performed/ overlooked  MK"  
NOUN PHASE ;Ph)BY<  
l a basic technical function of F ^t?*   
l a critical need $3.vVnc  
l a key / principle feature of ;nKH m  
l a substantial impact on # pQ"+X  
l an intensive review was conducted .l=*R7~EU  
l an increasing need for expanding the application of .... *X l<aNNx  
l an important component / function / aspect / issue  *;e@t4  
l each rule is numbered in sequence !LIfeL.4h  
l each of these involves p?$G>nkdq  
l for this calculation, it is necessary to define 3E}NiD\V}  
l in the physical environment / integration of )6:]o&bZ  
^ ]qV8  
l in the reality of situations where … M2E87w  
l many aspects of ).}k6v[4)  
l most past efforts have been spent on ... CLY6 YB' R  
l common sense to a well studied and documented technical field. bV$8 >[`  
l sources of additional information on ... are listed [j}7@Mr`\  
l systematic and rationally structured format }d~wDg<#  
l the basis on which a range of ...operations can be established is #W@% K9  
shown +*_fN ]M  
l THE basic philosophy / principles of / key element / general r=DHt&x=  
hypothesis / candidate list of / concept of ... has attracted wide G?1x+H;o5  
interest / function is concerned with / heart / impact / nature / role e-iYJ?  
/ task of / kernel functions J7ktfyQ0W  
l the number of parts needed to +t>*l>[  
l the above statement means that WHgV_o 8  
l the output data is passed to 7.$]f71z  
l the proposed method / underlying principle eyf4M;goz}  
l the recommendations made in this report, if implemented, should ByhOK}u;P4  
l this information resides in pymx\Hd,  
l this process is composed of ... different ... operation dqD;y#/  
l along with the use of 3V/_I<y  
l concerning general aspects of x[PEn  
l due to U6juS/  
l for later use in generating..., K}PvrcO1  
l in turn, n9kd2[s|  
l IT IS believed / noted / assumed / suggested / shown / quite NokXE  
evident / appears / implies that / intended for / of no important to 0 OAqA?Z  
l it can be claimed/concluded that ~VqFZasV  
l it demonstrates the decisions required of PyC;f8n'(  
l it also provides information to .. k;;nE o~6  
l it becomes essential to d& aBs++T  
l let ... be the probability that t7|MkX1  
l once... is written, it is compiled into... ,VKQRmd  
l suppose it is observed that =MTj4VXh"  
l this is because #0P!xZ'|{  
YO@hE>  
l this results in a $zC6(C(l  
l upon completion of the ... analysis, V.;:u#{@-Q  
l when the knowledge is of mathematics or quantum physics, it will gI)w^7Gi  
also be j6n2dMRvSE  
recorded in books and papers '1CD- Bu  
l selection of rules for using the tools, for generating operation oy2(Ag\  
plans, *I:mw8t  
is another matter of preference, since practice varies greatly. <9@&oN+T  
l for the sake of convenience `Uz s+k-]  
l correct decision to be reach r~)VGdB+  
l keeping the number of rules to a minimum. McEmd.S<n  
l a good process plan will result exhibiting several characteristics: LkaG8#m1R  
l practical solutions H \r`7  
l because of rather small job lot sizes -"F0eV+y  
l Backward reasoning can be used to answer the question "should _kh>Z  
milling tool be select" different level of knowledge in the realm of De;,=BSp  
process planning
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沙发  发表于: 2007-11-14   
Very useful, thank u!
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