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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 ^h{A AS>  
)f-ux5  
>^LVj[.1  
Beginning 0,)B~|+  
1. In this paper, we focus on the need for AFcsbw  
2. This paper proceeds as follow. %;yDiQ!+  
3. The structure of the paper is as follows. %lNv?sWb  
4. In this paper, we shall first briefly introduce fuzzy sets and related Ja>UcE29  
concepts F@Y)yi?z  
5. To begin with we will provide a brief background on the -fw0bL%0  
Introduction EF=.L {  
1. This will be followed by a description of the fuzzy nature of the 5W"nn  
problem and a detailed presentation of how the required oJe 9H<  
membership functions are defined. Ug_5INK  
2. Details on xx and xx are discussed in later sections. u +q}9  
3. In the next section, after a statement of the basic problem, various }$!bD  
situations involving possibility knowledge are investigated: first, an @/*{8UBP  
entirely possibility model is proposed; then the cases of a fuzzy jLX{$,  
service time with stochastic arrivals and non-fuzzy service rule is -NtT@ +AE  
studied; lastly, fuzzy service rule are considered. qp 4.XL  
Review H1_XEcaM+*  
1. This review is followed by an introduction. O&l(`*P  
2. A brief summary of some of the relevant concepts in xxx and xxx is -Bbg'=QZa  
presented in Section 2. vK6YU9W~J  
3. In the next section, a brief review of the .... is given. =MDir$1Z  
4. In the next section, a short review of ... is given with special regard jT"P$0sJAd  
to ... '$pT:4EuGq  
5. Section 2 reviews relevant research related to xx. 1MHP#X;|  
6. Section 1.1 briefly surveys the motivation for a methodology of dl;~-'0  
action, while 1.2 looks at the difficulties posed by the complexity of _a@&$NEox  
systems and outlines the need for development of possibility *@o@>  
methods. E*ybf'  
Body GY<ErS)2  
1. Section 1 defines the notion of robustness, and argues for its JL $6Fw;  
<GPL8 D  
importance. }Uki)3(  
2. Section 1 devoted to the basic aspects of the FLC decision-making `?LQd2p  
logic. ,!t1( H  
3. Section 2 gives the background of the problem which includes xxx 4"1OtBU3  
4. Section 2 discusses some problems with and approaches to, &[,g `S0  
natural language understanding. .z&V!2zp  
5. Section 2 explains how flexibility which often ... can be expressed tk"L2t  
in terms of fuzzy time-window !O F#4N  
6. Section 3 discusses the aspects of fuzzy set theory that are used in ^tX+<X  
the ... m)3?hF)  
7. Section 3 describes the system itself in a general way, including ms'&.u&<  
the ….. and also discusses how to evaluate system performance. W"Hjn/xSS  
8. Section 3 describes a new measure of xx. Hn)K;?H4  
9. Section 3 demonstrates the use of fuzzy possibility theory in the `q* 0^}  
analysis of xx. 6G6Hg&B  
10. Section 3 is a fine description of fuzzy formulation of human rubqk4  
decision. aGVzg$  
11. Section 3 is developed to the modeling and processing of fuzzy o/buU{)y  
decision rules S+>&O3m  
12. The main idea of the FLC is described in Section 3 while Section 4 }u cqzdk#2  
describes the xx strategies. Ht+ng  
13. Section 3 and 4 show experimental studies for verifying the g0I<Fan  
proposed model. 2n +j.  
14. Section 4 discusses a previous fuzzy set-based approach to cost vW]F rb  
variance investigation. 3~6F`G  
15. Section 4 gives a specific example of xxx. 1  6;l,@  
16. Section 4 is the experimental study to make a fuzzy model of T~8` {^  
memory process. ]Vhhx`0  
17. Section 4 contains a discussion of the implication of the results of -cyJj LL*  
Section 2 and 3. 5FqUFzVqsl  
18. Section 4 applies this fuzzy measure to the analysis of xx and \<|a>{`7]i  
illustrate its use on experimental data. F3jrJ+nJ  
19. Section 5 presents the primary results of the paper: a fuzzy set 2T5@~^:7u  
model .. gJi11^PK  
RyD2LAf)J  
20. Section 5 contains some conclusions plus some ideas for further &=|W95  
work. <kn#`w1U'  
21. Section 6 illustrates the model with an example. FMY r6/I  
22. Various ways of justification and the reasons for their choice are ({D.o S  
discussed very briefly in Section 2. F<BhN+U  
23. In Section 2 are presented the block diagram expression of a O8SX#,3^}  
whole model c}Jy'F7&f  
of human DM system eC9~ wc  
24. In Section 2 we shall list a collection of basic assumptions which @^Mn PM  
a ... scheme must satisfy. } llzO  
25. In Section 2 of this paper, we present representation and [#j|TBMHM  
uniqueness theorems for the fundamental measurement of fuzziness aO "JT  
when the domain of discourse is order-dense. rd]HoFE  
26. In Section 3, we describe the preliminary results of an empirical )_+"  
study A42At]  
currently in progress to verify the measurement model and to w|Zq5|[  
construct membership functions. DBCL+QHA  
27. In Section 5 is analyzed the inference process through the two #` z!f0 P  
kinds of inference experiments... 7`X"B*`~b  
This Section ,~K_rNNZ  
1. In this section, the characteristics and environment under which b_V)]>v+  
MRP is designed are described. Aplqx vth  
2. We will provide in this section basic terminologies and notations 'ZT!a]4  
which are necessary for the understanding of subsequent results. m>:%[vm  
Next Section  -rH4/Iby  
2. The next section describes the mathematics that goes into the 5*g@;aR1  
computer implementation of such fuzzy logic statements. H _3gVrP_  
3. However, it is cumbersome for this purpose and in practical wO8^|Yf  
applications the formulae were rearranged and simplified as /unOZVr(  
discussed in the next section. _nx|ZJ  
4. The three components will be described in the next two section, 5R"b1  
and an example of xx analysis of a computer information system will qh.c#t  
M? nnpO  
then illustrate their use. B|,6m 3.  
5. We can interpret the results of Experiments I and II as in the uT-WQ/id  
following sections. r.K4<ly-N  
6. The next section summarizes the method in a from that is useful <wE2ly&x  
for arguments based on xx @~63%6r#4M  
Summary W_sDF; JP  
1. This paper concludes with a discussion of future research xVl90ak  
consideration in section 5. l}O`cC  
2. Section 5 summarizes the results of this investigation. /$9/,5|EA  
3. Section 5 gives the conclusions and future directions of research. H}U&=w'  
4. Section 7 provides a summary and a discussion of some extensions l^Lg"m2  
of the paper. (|6q  N  
5. Finally, conclusions and future work are summarized 3ZB;-F5v  
6. The basic questions posed above are then discussed and ?` `+OH  
conclusions are drawn. uq 6T|Zm  
7. Section 7 is the conclusion of the paper. [j!0R'T  
Chapter 0. Abstract (c} 0Sg  
1. A basic problem in the design of xx is presented by the choice of a gj'ar  
xx rate for the measurement of experimental variables. vuAAaKz  
2. This paper examines a new measure of xx in xx based on fuzzy r?[mn^Bo5  
mathematics which overcomes the difficulties found in other xx ($cu!$lY~  
measures. Y]Fq)  -  
3. This paper describes a system for the analysis of the xx. /kJ*WA?J  
4. The method involves the construction of xx from fuzzy relations. #g|j;{P  
5. The procedure is useful in analyzing how groups reach a decision. !tb RqW6v  
6. The technique used is to employ a newly developed and versatile {T^'&W>8G8  
xx algorithm. }6S4yepl  
7. The usefulness of xx is also considered. QyN~Crwo  
8. A brief methodology used in xx is discussed. zm~~mz A  
9. The analysis is useful in xx and xx problem. ]{"(l(  
10. A model is developed for a xx analysis using fuzzy matrices. .xk<7^ZD  
11. Algorithms to combine these estimates and produce a xx are >WD^)W fa  
L;` 4 "  
presented and justified. 43)9iDmJ8<  
12. The use of the method is discussed and an example is given. BT#>b@Xub  
13. Results of an experimental applications of this xx analysis ^Qr P.l#pZ  
procedure are given to illustrate the proposed technique. AnyFg)a<  
14. This paper analyses problems in tEEhSG)s%  
15. This paper outlines the functions carried out by ... 2h:f6=)r/u  
16. This paper includes an illustration of the ... UMX+h])#N  
17. This paper provides an overview and information useful for @t2 Q5c  
approaching  y,r`8  
18. Emphasis is placed on the construction of a criterion function by (Q4_3<G+  
which the xx in achieving a hierarchical system of objectives are ,-1$Vh@wM  
evaluated. 0Fw\iy1o  
19. The main emphasis is placed on the problem of xx ^GAdl}  
20. Our proposed model is verified through experimental study. bOFLI#p&  
21. The experimental results reveal interesting examples of fuzzy V*m)h  
phases of: xx, xx #wd \&  
22. The compatibility of a project in terms of cost, and xx are likewise I[`2MKh  
represented by linguistic variables. IL=v[)en4  
23. A didactic example is included to illustrate the computational 6P~"7k  
procedure 6^aYW#O<Ua  
Chapter 1. Introduction _9@?Th&_e  
Time vX/A9Qi,U.  
1. Over the course of the past 30 years, .. has emerged form intuitive ygW@[^g  
2. Technological revolutions have recently hit the industrial world q5!l(QL.  
3. The advent of ... systems for has had a significant impact on the (XwLKkw0n  
4. The development of ... is explored ^sOm7S{  
5. During the past decade, the theory of fuzzy sets has developed in a PJYA5"}W  
variety of directions RsD`9>6)  
6.The concept of xx was investigated quite intensively in recent years } >w  
7. There has been a turning point in ... methodology in accordance LA?\~rh!  
with the advent of ... i-FUAR  
8. A major concern in ... today is to continue to improve... ],YYFU}  
9. A xx is a latecomer in the part representation arena. NslA/"*  
-n *>zGc  
10. At the time of this writing, there is still no standard way of xx u,akEvH~a  
11. Although a lot of effort is being spent on improving these Doh|G:P]#  
weaknesses, the efficient and effective method has yet to be 05KoxFO?  
developed. UBi4itGD  
12. The pioneer work can be traced to xx [1965]. v|I5Gz$qpa  
13. To date, none of the methods developed is perfect and all are far xN m32~  
from ready to be used in commercial systems. p},Fwbl  
Objective / Goal / Purpose i+[3o@  
1. The purpose of the inference engine can be outlined as follows: dT)KvqX  
2. The ultimate goal of the xx system is to allow the non-experts to >NRz*h#  
utilize the existing knowledge in the area of manual handling of loads, v7(|K  
and to provide intelligent, computer-aided instruction for xxx. MgQU6O<  
3. The paper concerns the development of a xx b!X"2'  
4. The scope of this research lies in W Q}!]$<"y  
5. The main theme of the paper is the application of rule-based .Sr:"SrT  
decision making. p,iCM?[|  
6. These objectives are to be met with such thoroughness and (bx\4Ws  
confidence as to permit ... fHd!/%iG  
7. The objectives of the ... operations study are as follows: `f+8WPJPZ  
8. The primary purpose/consideration/objective of eq~c  
9. The ultimate goal of this concept is to provide WYC1rfd=  
10. The main objective of such a ... system is to Nr24[e G>d  
11. The aim of this paper is to provide methods to construct such >_`D3@Rz  
probability distribution. aGe(vQPi9  
12. In order to achieve these objectives, an xx must meet the 9*|3E"Vr  
following requirements: ?JgO-.  
13. In order to take advantage of their similarity pf8O`e,Awf  
14. more research is still required before final goal of ... can be x$n~f:1Y  
completed QM ZUt  
15. In this trial, the objective is to generate... >HPvgR/#BY  
16. for the sake of concentrating on ... research issues WY"Y)S  
17. A major goal of this report is to extend the utilization of a recently ,|.8nk"  
developed procedure for the xx. (9}eF)+O  
aZj J]~bO  
18. For an illustrative purpose, four well-known OR problems are S\9t4Ki_'  
studied in presence of fuzzy data: xx. ov`^o25f  
19. A major thrust of the paper is to discuss approaches and qBy NHo7Tb  
strategies for structuring ..methods Jq$_=X&  
20. This illustration points out the need to specify l Io9,Ke  
21. The ultimate goal is both descriptive and prescriptive. UZje>. ~?  
22. Chapter 2. Literature Review 7}ws |4Y  
23. A wealth of information is to be found in the statistics literature, :}@C9pqr2  
for example, regarding xx Q(|P Zn g  
24. A considerable amount of research has been done .. during the ,-(T"Ph<  
last decade _F`$ d2  
25. A great number of studies report on the treatment of .tRr?*V|l  
uncertainties associated with xx. {f+N] Oo*  
26. There is considerable amount of literature on planning ;)(Sdf[P  
27. However, these studies do not provide much attention to I@0z/4H ``  
uncertainty in xx. H2qf'  
28. Since then, the subject has been extensively explored and it is J~Cc9"(  
still under investigation as well in methodological aspects as in o84UFhm   
concrete applications. Jd5\&ma  
29. Many research studies have been carried out on this topic. Ih.rC>)rx  
30. Problem of xx draws recently more and more attention of system ]} 61v V  
analysis. O 'k+7y  
31. Attempts to resolve this dilemma have resulted in the -S"5{N73  
development of oZTgN .q  
32. Many complex processes unfortunately, do not yield to this S4cpQq.  
design procedure and have, therefore, not yet been automated. {5^K Xj$B  
33. Most of the methods developed so far are deterministic and /or j-7u>s-l  
probabilistic in nature. pzp,t(%j  
34. The central issue in all these studies is to CuH2E>wz  
35. The problem of xx has been studied by other investigators, <W>++< -  
however, these studies have been based upon classical statistical %2f//SZ:  
approaches. [r)e P({  
36. Applied ... techniques to *LANGQ"2(i  
37. Characterized the ... system as 1y J5l,q  
i AdGgK  
38. Developed an algorithm to QK)){ cK  
39. Developed a system called ... which q:I$EpKf?Q  
40. Uses an iterative algorithm to deduce ,`k _|//}=  
41. Emphasized the need to =; 0wFwSz  
42. Identifies six key issues surrounding high technology YEv%C| l  
43. A comprehensive study of the... has been undertaken !/`$AXO  
44. Much work has been reported recently in these filed hoa7   
45. Proposed/Presented/State that/Described/Illustrated/ ~C-,G"zw&G  
Indicated/Has shown / showed/Address/Highlights b_TS<,  
46. Point out that the problem of + WVIZZ8  
47. A study on ...was done / developed by [] "wAf. =F  
48. Previous work, such as [] and [], deal only with %Y]=1BRk}  
49. The approach taken by [] is =-NiO@5o  
50. The system developed by [] consists [}OgSP9i  
51. A paper relevant to this research was published by [] ?+~cA^-3T  
52. []'s model requires consideration of... <A >)[u  
53. []' model draws attention to evolution in human development K_~h*Yc  
54. []'s model focuses on... w]u@G-e  
55. Little research has been conducted in applying ... to ZrO!L_/  
56. The published information that is relevant to this research... qH> `}/,P  
57. This study further shows that BecP T  
58. Their work is based on the principle of a2w T6jY  
59. More history of ... can be found in xx et al. [1979]. j'?7D0>  
60. Studies have been completed to established 6KHN&P  
61. The ...studies indicated that .pPm~2]z  
62. Though application of xx in the filed of xx has proliferated in zce`\ /:  
recent years, effort in analyzing xx, especially xx, is lacking. E<E3&;qD  
Problem / Issue / Question YO+{,$  
63. Unfortunately, real-world engineering problems such as 0nJE/JZ  
manufacturing planning do not fit well with this narrowly defined d>0 +A)6>  
model. They tend to span broad activities and require consideration }|\d+V2On  
of multiple aspects. 31WC=ur5  
64. Remedy / solve / alleviate these problems oVvc?P  
67. ... is a difficult problem, yet to be adequately resolved m8R9{LC  
^EELaG  
68. Two major problems have yet to be addressed 0(U#)  
69. An unanswered question '1?\/,em  
70. This problem in essence involves using x to obtain a solution. hR#-u1C  
71. An additional research issue to be tackled is .... ^3VR-u<O  
72. Some important issues in developing a ... system are discussed 8:= n*  
73. The three prime issues can be summarized: sRSz}]  
74. The situation leads to the problem of how to determine the ... dCyqvg6u  
75. There have been many attempts to %`MQmXgM  
76. It is expected to be serious barrier to fhPk EvJ  
77. It offers a simple solution in a limited domain for a complex ]\-^>!F#K  
problem. N`@NiJ(O;  
1. There are several ways to get around this problem. E 99hlY~1:  
2. As difficult as it seems to be, xx is by no means new. ?eH&'m}-  
3. The problem is to recognize xx from a design representation. r ={c,i  
4. A xx problem can trace its roots to xx. T>TWU:  
5. xx [1987] used a heuristic approach to simplify the complexity of <+MyZM(z>  
the problem. %^sTU4D5  
6. Several problems are associated with them. 4iA Z+l5&  
7. Although some progress has been made in this area, at least two |-sPLU&s%  
major obstacles must be overcome before a fully automated system pl@O N"=[  
can be realized. 1b=lpw 1}  
8. Most problems in practice are complicated E_Z{6&r  
9. More problem surface here. \(226^|j  
10. Hamper effort toward a xx system GjoIm?  
11. In order to overcome the limitations due to incomplete and =q N2Xg/  
imprecise xx knowledge, a xx program has been developed, which Uc/+gz Z;  
bases its knowledge upon the statistical analysis of a sample afjtn_IB  
population of xx ]7-&V-Ct*  
12. The above difficulties are real challenges faced by researchers coYij  
attempting to develop ?X@fKAj  
13. This type of mapping raises no controversy to the issue of %X#zj"  
membership function determination. f{SB1M   
14. However, attempts to quantify the xx have met both theoretical [MuEoWrq(}  
and empirical problems. I*9e]m"  
vJAZ%aW  
15. It has become apparent that in order to apply this new 3?Y2L  
methodological framework to real-world problems and data, we have ]Q[p@gLd  
to pay attention to the problems of xx and xx. +`?Y?L^ J  
Chapter 3. Proposed methodology h iNEJ_f  
Assumption ^vG8#A}]  
1. In the case when the assumption of a xx seems to be too mPq$?gdp  
restrictive or inadequate, the formulation with Fuzzy termination d)~Fmi;  
time, i.e. given by a fuzzy set in the space of control stages, may be sz9L8f2  
applied. OY?y^45y  
2. We assume here the fuzzy constraints to be state-dependent, and N},n `Yl.  
the fuzzy goal to be the same for all the control states, xx, which 0uBl>A7qhn  
stems from the problem's nature. `xrmT t X  
3. An approach to the solution of this problem is presented under the 1sYEZO;  
assumption that the sampling rate Decision can be made prior to the GR\5WypoJ  
execution of the experiment, as opposed to being made while the OyqNLR  
experiment is in progress. Bn>8& w/P  
4. Another assumption made above is that there are precise odds at *L!!]Q2c  
which the expert is indifferent. }NsUnbxT  
5. Main simplifying assumptions are: HF3f)}l$  
6. This, in our view, is a questionable assumption.  \>Efd  
Outline / Structure / Module D%JlbH8  
1. An outline of the research ^iQn'++Q  
2. Information is incorporated within the scheme $+7`Dy!  
3. Is built into ... structure ,^S@ EDq  
4. A nice modular structure. m*mm\wN5  
5. The principles of ... are applied as modularized criteria Q,80Hor#J  
Classification LdB($4,  
1. A xx system comprises three main components: u : F~K  
2. Must decompose the original .. into a set of .. =|=.>?t6Z0  
3. Consists of the following steps: @BNEiOAZ#  
4. This is summarized in the following steps: ^ "\R\COQ  
`c'W-O/  
5. Can be broadly classified into the following areas: UUMtyf  
6. Can be characterized by its function of effectively processing the S(7ro]U9  
7. Can allow further breadth of application of ...into more h&kZjQ&  
8. The following steps should be followed +S=Rn,  
9. xx can be classified by a different ways. yS=oUE$  
10. Based on the xx, one may classify xx into the following: MCdx?m3]  
11. This catalog may change due to wear, breakage, and purchasing. ~@kU3ZGJZ  
System .$#r V?7  
1. Unlike many conventional program, expert systems do not YZ+RWu9K  
usually deal with problem for which there is clearly a right or wrong ~(]0k.\  
answer. asC_$tsMe  
2. The system consists of both ... and ... I<A6Z&*un  
3. The system has a hierarchical modular architecture organized on *OyHHq|>q  
three levels. D_8x6`z  
4. expert system domains are area of expertise 5 QO34t2  
5. To develop a xx system for xx, the following factors must be kkK kf '  
considered: 5pn)yk~  
6. The system has been developed / designed to determine }Nb8}(6  
7. The system has proven to be able to 7-BvFEM;  
8. The domain in which an expert system operates is a particular  ;vb8G$  
domain !`7B^RZ  
9. The system comprises a ... with uWrQ&}@  
10. The system is [feature-oriented ] / based on the ... technique ?@n/v F  
11. The system environment must be relatively stable h`MF#617  
12. The system is utilized to generate, load, store, update and 3su78et}  
retrieve ... q=lAb\i  
13. The development of a xx system has two stages: xx stage and xx %K]euEqs  
stage. TYA~#3G)  
14. The most essential part of .. system is the ... IMk'#)  
15. The successful developments in ESs have made them an Zec <m8~  
important tool in the development of YA&g$!  
16. An automated system was developed for f}D1|\7  
17. In this case, the system can be considered to be generative.  RD tU43  
boo }u  
18. An interactive automatic ... system o:6@ Kw^  
19. A …. is commonly thought of as a truly integrated .. system |!F5.%PY  
20. Should be capable of being generated from a ... system -)~SM&  
21. xx is an important part of the integrated system. nbG/c80  
22. The model consists of four rule bases, each of which addresses a . <tq6 1  
separate problem in the hierarchy of scheduling decision. hkO sm6  
23. The rule bases are linked to each other in a chin-like manner in 2On_'^O  
the sense that the consequent of one rule base constitutes a part of P4Th_B7  
the antecedent of the next rule base. G7=p Bf  
24. The rule base consists of all possible combinations of the `EtS!zD~b  
linguistic terms associated with the linguistic variable of the O 1oxZj <  
antecedent of a rule.  {Ha8]y  
Computer System dik9 >*"|o  
1. The system has been implemented using Prolog language in an lH ZU iB  
MS-DOS environment. Prolog was chosen because it offers a well 2!Bd2  
known and flexible environment in which fuzzy reasoning may be >Yt/]ta4+  
easily implemented. & /4k7X}y  
2. The current version of the xx program when compiled with 2r%lA\,h$  
WATFOR77 results in an executable code of about 270K bytes. ejA%%5q  
Typical run time, when run on a XX computer (an IBM compatible $'pNp B#vH  
machine) operating at 4.77 Mhz with 640K RAM, ranges from 10 min W>b(Om_%  
to 2h, depending on the size (or complexity) of the problem. *. &HD6Qr  
3. Time consuming procedures have been implemented in 'q * Bdx  
C-language and directly linked to the Prolog environment. z_ =Bt  
4. The xx process, once the xx's data has been entered, requires Ez{MU@Fk  
approximately 180 seconds. "KJ%|pg_C  
5. It should be noted that the computation was done with a 20 Hhz, >E,U>@+  
80386..209;based microcomputer equipped with a 80387 math @/&b;s73  
co-processor. %{;Qls%[t  
6. The computer programs used for the analyses, one based on the xx CB~Q%Q LG  
method and the other based on the new method, were written in oQ=>'w  
FORTRAN with a compiler that supports the math co-processor. U}$DhA"r"  
7. Lisp, Prolog give maximum flexibility but also maximizes s s 3t  
V Yw%01#  
development time. d`d0 N5\  
l Internal representation is the way a model is represented in the C>Is1i^9  
computer. B cj/y4"  
l An interactive menu-driven procedure is used in this study )~jqW=d 2  
l Shell can be develop very fast at the cost of time fairly severe =:+0)t=ao  
limitations. 0Aa`p3.)  
l While there is no measurable saving of time for the case involving KLC{7"6e)  
five criteria, the saving is dramatic for the case involving 10 criteria Y\v-,xPm  
-- the computation time reduces from 10 hr 40 min to about 1 min. D5?phyC[Z  
l This combination is being implemented in an objected-oriented S=3^Q;V/1  
programming environment (Smalltalk-80 system) to solve problems V^Rkt%JY  
encountered in construction xxx. l.nH?kK<  
Method / Approach / Study / Process Model / Equation /Algorithm / 0@Kkl$O>mb  
Rule / Formula / Technique <5@PWrU?[[  
l A discussion is presented of a problem-solving system 2q} ..  
l To improve the efficiency of the method, the following approach %f8Qa"j  
may be applied. "8V{5e!%j'  
l In order to an investigation was made to find the causes of the djT5 X  
l Although large collections of rules and equations have been W 4YE~  
complied, none are generally accepted %~*jae!f  
l This approach will be explained and discussed thoroughly in the x O7IzqY  
body of the report. A<YsfDa_d  
l This can be accomplished by *@V*~^V"J[  
l This algorithm to compute the total cost can be described step by AY_Q ""v  
step as follows: 6gOe!m m  
l The above preliminary analysis has provided important \Btk;ivg  
information cy~oPj]j  
l Various methods have been proposed for selecting an optimum... }1+%_|Y-E  
l These concepts have been applied to \)m"3yY  
l On the basis of the concept mentioned above, G%TL/Z40  
l This can be achieved by n"aCt%v  
l This fact suggests that a new concept +~2rW8  
l This was accomplished by taking ... iz}sM>^  
;)!"Ty|  
l The preparatory stage is very time consuming process. (&&87(  
l Test are performed for validity, completeness, and compatibility CBD_a#K{  
l There is little hope of achieving successful ... #-u [$TA  
l There has been an increasing awareness of the potential of using 4f1D*id*`#  
most ..so far made have not taken this approach, with the exception X`20f1c6q>  
of YT2'!R 1  
l Only a few studies can be found. K}I0o!(#  
l It is a very tedious process to go through 2f:Mm'XdB  
l It is only when .. has been completed that .. may be effected nbvkP  
l The entire interpretation process is conducted in one's head. wFlV=!>,  
l These approaches are sometimes very tedious. 7$b?m6fmK  
l Several techniques can be used (N U0T w  
l A polynomial parametric model can be written as [the ! gp}U#Yv  
following]/[follows]: [wcA.g*F  
l A xx model is constructed/formulated using xx. |PM m?2^R  
l A xx model represents an xx by its xx. ,@Z_{,b  
l A process decision model captures the logic essential to kN'Thq/ZE  
l From the equation above, xx is equal to the summation of xx t;Wotfc[#0  
times the ... s'2Rs^,hN  
l The validity of a xx model can be checked using Euler's formula. ?ei%RWo  
l Given a model, one can mathematically determine whether ... or ... }]h \/,  
l Equations for xx need to be derived and implemented in the I($,9|9F  
system. ZzL@[g  
l A number of heuristic rules have been developed for .Dv=p B,u  
l Optimum .. techniques can be made more reliable by ... so that 44C+h    
l An algorithm based on the characteristic ... is used to determine 2lz {_9  
l Euler's formula states the following: TU%"jb5  
l The completed model should agree with the formula. o8D{dS>,PL  
l For manufacturing purposes, a detailed and precise model of the me'(lQ6^  
object is necessary 0(TvQ{  
l Engineering design models are very well defined; therefore, +{&+L0DfH~  
l To keep the domain narrow enough to be implementable, yet wide |9]PtgQv7  
enough to |e"/Mf[  
be useful. v!!;js^  
o4'v> b  
Point of View  oWrE2U;  
l from an implementation standpoint, Zi3T~:0p:  
l From the point of view of this application, BQU/QoDY  
l From this point of view, Zadeh suggested an inference rule named ,Qo}J@e (  
xxx (CRI for short). A5+5J_)*  
l Information is the meaningful interpretation and correlation of S2}Z&X(  
some aggregation of data in order to allow one to make decisions. 4@~a<P#  
l From a practical point of view, the computational aspects of an KZi' v6  
FLC require a simplification of the fuzzy control algorithm. )[ w&C_>]  
l The use of a hammer to insert screws, although partly effective, fn?VNZ`J  
tends to distort, destroy, and generally defeat the purpose of using a 7AeP Gr  
screw [Kusiak AI Implications for CIM p.129] 4zX=3iBt  
Justification c'~ [!,[b<  
l We choose the so called xx in our experiment because it has CjmV+%b4  
received wide acceptance and can () <`t}FQ  
l Prolog was chosen because it offers a well known and flexible 2mLUdx~c  
environment in which fuzzy reasoning may be easily implemented. ,M{Q}:$+4  
l The rationale behind this is that it can be much easier for an pzAoq)gg:  
estimator to rate a cost as high than to attempt to place a dollar qTS @D  
value on the estimate. fo;6huz  
l This strategy has been widely used in fuzzy control applications ])S$x{.g  
since it is natural and easy to implement. drs-mt8  
l A function definition expresses the membership function of a 44Q9* ."  
fuzzy set in a functional form, typically a bell-shaped function, etc. hXPocP  
Such functions are used in FLC because they lead themselves to "'~|}x1Uv  
manipulation through the use of fuzzy arithmetic. :TlAL# s&  
l It should be noted that in our daily life most of the information on 7|K3WuLL  
which our decisions are based is linguistic rather than numerical in zw ,-.fmM#  
nature. Seen in this perspective, fuzzy control rules provide a natural b h*^{  
framework for the characterization of human behavior and decisions % mJ~F*Dy  
analysis. w LpkUa  
l Many experts have found that fuzzy control rules provide a k06xz#pL  
_/ct=  
convenient way to express their domain knowledge. This explains +8^5C,V  
why most FLCs are based on the knowledge and experience which =?HzNA$yh  
are expressed in the language of fuzzy "if-the" rule. 0hFH^2%UY  
Chapter 4. Examples abL/Y23 "  
Example/ Data TN J<!6  
l The data used in the following example was taken from an 6k:y$,w  
experiment in which xx was measured between x and x using a xx n>br,bQe  
technique. IF5sqv  
l The data consists of over xx measurements. 1B6C<cL:sU  
l An example of xx is discussed and the control rules of xx are tCX9:2c  
compared with a xx _2 ]O^$L  
l Examples of complex processes to which this technique may be MF&3e#mdB  
applied are xx, xx, etc. Ir!2^:]!  
l The following example is constructed only for the purpose of stX'yya  
illustrating the computational procedure discussed. `b#/[3  
l This example clearly demonstrates that the profile of an individual kxygf9I!;  
xx, or a very small group of xx, with no enough data to be studied D*CIE\ +  
statistically, can be meaningfully analyzed by fuzzy possibilistic yQ8M >H#J  
methods. r|l53I 5  
l There is no space here to go into detail on all these methods, but m{vT_ei  
deserve a mention and the bibliography will point to detailed $[j-C9W  
references for those wishing this level of detail. ^CfM|L8>  
l Note that the golf ball spotting example is used throughout the T}V7SD.  
paper. r4 9UJE  
Comparisons EfFj!)fz  
l As well, the pros and cons of these representations from a process tceIA8d6  
planning point of view will be discussed. g4zT(,ZY  
l The method of using xx to implement xx described by Zadeh mG>T`c|r3  
(1973) appeared more suitable 's=Q.s  
l As discussed [in the previous section]/[preciously], d|>9rX+f  
/uC+.B9k  
Relation ;n3uV`\  
l We can not invert F' directly because it defines a many-to-one & 6`  
mapping. 7YMxr3F  
l The relationships appear very complicate 0\V\qAk  
l Lifting tasks involve complex and imprecise relationship between 3Qqnw{*  
the task variables and the human operator's characteristics. @:S$|D~  
l These methods are based on the relationship between ... and ... \%w7D6dEZ  
l The fundamental concept of a fuzzy rating language is that we can $.ymby  
establish a relationship among terms such as high, medium, and low, O4lxeiRgC  
and then modify these relationships. F?}m8ZRv  
l This article will thus mention the latter as well as the former. B$K7L'e+-  
l The former two bear a close relation to a fuzzy Cartesian product. Ytl:YzXCi  
Importance VaD :  
l The emphasis is on an implementation of a general approach to #]?,gwvTf  
rule based decision making. .a 'ETNY:>  
Consideration / Attention |usnY  
l Careful evaluation is necessary to ensure d/0/$Bz}P  
l Such a formulation does not change further considerations. ~ @b9  
l Considerable attention has been paid to ;n yB  
l Attention should be paid to an important finding of this S#dyRTmI  
investigation. 5pNvzw  
l Caution should be exercised in this process to avoid ... UMHuIA:%U  
l Primary consideration is given to ... components, though others <[ g$N4  
can be accommodated Wh#_9);  
l After ... has been defined by ..., a carefully analysis is carried 9`nP(~  
out/performed to determine DI $ mD{  
l A number of factors such as ...need to be taken into consideration Q1N,^ 71  
before making the appropriate decision. ? RrC~7~  
l It should be noted that  x9XGCr  
l It is important to point out that ... +1JZB* W  
l These considerations have heightened interest in the possibility of GI'&g@?u  
providing ... 1s^$oi}  
^>P@5gcoE(  
l We should stress the fundamental importance of the xx a9mr-`<  
Chapter 5. Results. I&Eg-96@  
Advantages / Disadvantage ,M+h9_&0?  
l One of the major advantages of this new measure of xx is that it 2WbZ>^:Nsk  
can be applied to the experimental study of i?P]}JENM  
l One advantage of using a .. is the ease of preparing it. 2Wc;hJ.1  
l The xx system is versatile 5sf fDEU]A  
l It has a very fast decision making process n WO~v{h3J  
l All the algorithms involve mostly logical operations. RY'\mt"W2  
l It can be easily and without additional cost implemented in a 1W6n[Xg  
microprocessor-based environment. 9X^-)G>  
l It can reduce the waste of designing from scratch. |)>GeE  
l The advantages of using a xx to represent xx are the following: )Or:wFSMq  
l However, xx is not without its shortcomings. ND99 g  
l In most cases, the xxx shows an improvement over the existing Do{*cSd  
xxx. Z?G 3d(YT  
l Compared to the existing xx, the impacts of the xx are generally T_;G))q'  
reduced by 5% to 9%. hc4`'r;  
l The "best case" results shows a savings of 6% to 9%. N;Gf,pE  
l Most of the existing works based on xx approach can only =tvm=  
recognize a xx . @v:ILby4-  
l Most of the above methods are computational expansive and COl%P  
limited to xx. -%QEzu&  
l Some other advantages of xx are the following: ^ _#gIT\  
l The problem is the limitation of this method to a limited domain of `\/Wah}I  
parts. K+aJ`V  
l It proved limited in application because it demanded precision in x:D<Mu #  
system modeling that was impossible in practice. y O9pEO|W  
l There are advantages to be gained in the structuring of costs and & /FA>  
benefits, the use of xx, \2VZkVO9  
l The disadvantages of this method are also disadvantages of ]a@v)aa-  
conventional xx approaches. dT-O8  
0a;F X0S&  
l This combines the best features of both techniques [}g5Z=l  
l Hopefully, this tool can be as the reference framework of for (h(ZL9!  
developing a xx platform, and helping the administration, marketing, 'bqf?3W  
and knowledge management activities in virtual communities. qb/!;U_  
Results KQy\l+\gM  
l An improvement on the result shown above can be made by based gZuR4Ti  
on the data provided gQzF C&g  
l Discussion of these theories is beyond the scope of this review 5;%xqdD  
l Based on the information contained in this u=N;P  
l The result can be categorized into nine classes X=RmCc$:  
l The results are illustrated by an example X=7vUb,\gB  
l The experimental results for each xx time are reported in Table 2. Y-9j2.{  
l From the results obtained so far, it seem that 91'^--N  
l Because of the inaccuracy of the ..., a conclusion cannot be drawn p{_ O*bo  
as @n y{.s+  
l Although much effort has been made to., this reality is far from iDe0 5f1R  
completion. = ~R3*GN  
l The results indicate that the total benefits are higher than the ]?5@ObG  
total costs. uX!y,a/"  
l Their results may then serve as guidelines for lower level models, kUBHK"}K  
less fuzzy and more detailed. e5y`CXX  
Chapter 6. Conclusion 6#-; ,2i  
l From the discussion, one may conclude that ... 8TM=AV  
l Form the above discussion, the conclusion can be reached that gM:o P.  
l The conclusions drawn are also valid {nWtNyJpS  
l In conclusion to this, it becomes obvious that the problem of xx MZ[g|o!)v  
lies not only in... 57%cN- v*  
l We have attempted to introduce some concepts associated with a  o=5uM  
theory of Cd*C^cJU&z  
xx based on fuzzy sets. 2]KPW*V  
l Considerable more work, hopefully, will be done in this area U/l ra&P  
l A fuzzy set procedure is proposed to solve xx selection problems <GlV!y  
Ft>8 YYyU  
interwoven with imprecise data lJ2/xE]  
l Employing the compositional rule of inference, the assessment of )O'<jwp$  
the xx compatibility in achieving prescribed xx projectiles in any )W#g@V)>  
level of the hierarchy is made possible. uZI:Kt#  
l This paper has presented a theoretical and experimental study of +OP'/  
the xx process and xx concept. O  
l The experimental research results will hopefully serve as useful f4^_FK&  
feedback information for improvements for xx work. uv d>  
l The scope of this contribution was to introduce a xx method. }z:=b8}  
l In general, fuzzy sets theory provides an alternative foundation Hc3/`.nt  
for xx analysis in a fuzzy environment. k82LCV+6  
Future Research ou4?`JF)-  
l Thus, first extension of the approach could be, T!$HVHh&,}  
l Present some cues for a further approach from Fuzzy Sets Theory ?`iBp+iBv  
application to < duM8   
l Some improvements to the scheduling aspect of the model may $l0w{m!P  
be brought through additional levels in the hierarchy for more X:bgY  
detailed representation of the scheduling activity. 6YbSzx` ?k  
Tables and Figures WVFy ZpB  
l Figure 7-1 sketches these relationships. JE!Xf}nEi  
l The graphical representation of these functions is shown in Figure cFo-NI2  
1. H2- (  
l The xx may be depicted as in Figure 1. }3e+D  
l Figure x shows the schematic diagram of the YzVLa,[  
l Figure 1 though 2 provide a ... that =uEhxs j)S  
l the architecture of this expert system for .... is illustrated in Figure ->UrWW^  
2. C\K--  
l Figure 2 gives the outline of an ... system P@ u%{  
l Table shows the 6=D;K.!  
l as shown in Table 1 and 2 DO; 2)ZQ%  
l This concept is illustrated in Figure 2 ~I74'  
l At the top of Table xx are shown two blocks of data. nz+KA\iW  
4kEFbzwx  
l Each table or matrix has constructs xx through xx as mB`r6'#=  
row-headings, 7v_e"[s~  
xx through xx as column-headings. D\JYa@*?.h  
l A table of .. is developed and significant recommendations are VdgPb (  
made. k zT'  
CONJUGATION <R$|J|  
To Indicate Addition -mF9Skj  
l additionally, again, also, and then, as can be easily understood, .nN7*))Fj  
besides, equally important, especially, finally, for the same reason, 82<!b]^1  
first, further, furthermore, in addition, last, likewise, moreover, next, Z^'; xn  
second, third, too, evidently, obviously, roughly speaking, broadly $qqusa}`K  
speaking S/|8' x{<  
To Indicate Cause and Effect Nx"?'-3Hm  
l accordingly, as a result, consequently, for this reason, hence, in z&8#1'  
short, otherwise, then, therefore, thus, truly ~[{| s' )  
To indicate Comparison w~`P\i@  
l in a like manner, likewise, similarly , alternatively FpEdwzBb<  
To Indicate Concession >8##~ZuF+  
l after all, although this may be true, at the same time, even though, ~H.;pJ{ 8  
even so , I admit, naturally, of course 8I'?9rt2M  
To Indicate Contrast GUxhCoxb  
l and yet, at the same time, but, for all that, however, yet, in fact, in q)/4i9  
contrast, in the real life, in spite of, nevertheless, notwithstanding, >_o_&;=`v  
normally, on the contrary, on the other hand, still, traditionally, 1/ HofiIa  
rather, unfortunately, )-mB^7uXGv  
To Indicate Time Relationships: 3 f3?%9  
after a short time, afterwards, as indicated earlier, as long as, as soon j'W)Nyw$[  
q/Q*1  
as, at last, at length, at the moment, at that time, at the same time, lxeolDl  
before, earlier, currently, immediately, in the meantime, in recent /#a$4 }2L  
years, lately, later, meanwhile, often, of late, presently, recently, q#Bdq8  
soon, shortly, since, thereupon, temporarily, therefore, until, when, jH8F^KJM[  
while xn-n{U"  
To Indicate Special Features or Examples:  mVxS[Gq  
for example, for instance, incidentally, indeed, in fact, in other words, 5b&'gd^d  
in particular, in practice, specifically, that is, to illustrate, in this YRK4l\_`  
respect, theoretically, as mentioned before / above 8WAg{lVs  
To Indicate Summary: _jtBU  
in brief, in conclusion, in short, in summary, on the whole, to TPrwC~\B/  
conclude wDsEx!\#  
, in general, to summarize, to sum up, as a result, ultimately, 51~:t[N|  
VERB PHASE {h2D}F  
l build a .. model 0j*8|{|  
l build up the key link xHf l>C'  
l began a new era in ... {9z EnVfg  
l can be regarded as / achieved / used to/for / found / obtained E ]68IuP@'  
through Q@2Smtu~c  
l can result in O:1YG$uKa  
l carries out ... tasks /vBpRm  
l production information in order to simultaneously FsD}N k=m~  
l contains all information necessary to describe Ef#%4ky  
l do not make use of production information  3o z]  
l deals with n84*[d}t  
l end with failure 291v R]  
l fetch the information from the model directly =l {>-`:  
l has great potential / yet to be resolved / spurred the  MgA6/k  
development of / &QvWT+]c'0  
been recognized as PQ1\b-I  
l BE aimed at / built up / carried out by / essentially concerned `/"TYR%  
 75%!R  
with / considered to be the key technology / associated with each Z x3m$.8  
feature of a compo 8USF;k  
site component / cable of / currently implemented for / p VLfZ?78  
demonstrated by an example / finally reached / made equal to / 9"&HxyOfX  
equivalent to / more suitable to / oriented to / interpreted as / B+,Z 3*  
pointed out / potentially of great benefit in the complex task of / [9X1;bO#f  
shown in / used to effectively guide the search |NL$? %I  
l makes use of ZfS-W&6Z  
l make up e:&5Cvx  
l meets the needs of real life production,/ the current demands N n+leM  
placed upon it aabnlOVw  
l must be justified ;4%^4<+3  
l point out 7h,SX]4Q  
l play an important role S&FMFXF@  
l relates to ]QRhTz  
l rely on a~WtW]  
l satisfy the needs \ c9EE-  
l determine the total requirements for the ...  weKwBw  
l uses ... as a key to search for... EX=Q(}9F<  
l without relying on s lXk <  
l will be available/ performed/ overlooked = T!iM2  
NOUN PHASE Jr|"`f%V  
l a basic technical function of vA*!82  
l a critical need 9H`Q |7g(5  
l a key / principle feature of }]'Z~5T  
l a substantial impact on <%B sb}h,  
l an intensive review was conducted ^g"G1,[%w  
l an increasing need for expanding the application of .... b[%sKl  
l an important component / function / aspect / issue "l"zbW WOH  
l each rule is numbered in sequence B~G ?&"]  
l each of these involves M|w;7P}  
l for this calculation, it is necessary to define  mR)Xq=  
l in the physical environment / integration of l Q {k  
kFg@|#0v9  
l in the reality of situations where … `qbf_;\  
l many aspects of .y\j .p  
l most past efforts have been spent on ... E3@G^Y  
l common sense to a well studied and documented technical field. d="Oge8  
l sources of additional information on ... are listed <lopk('7  
l systematic and rationally structured format 0JN>w^  
l the basis on which a range of ...operations can be established is *](maF~%C  
shown 1tw>C\  
l THE basic philosophy / principles of / key element / general z~\a]MB  
hypothesis / candidate list of / concept of ... has attracted wide Up*1j:_O  
interest / function is concerned with / heart / impact / nature / role I]+xerVd  
/ task of / kernel functions <&^P1x<x  
l the number of parts needed to 7}>Zq`]~  
l the above statement means that C,r[H5G#  
l the output data is passed to 6Lj=%&  
l the proposed method / underlying principle g?&_5)&  
l the recommendations made in this report, if implemented, should R-QSv$  
l this information resides in .,[ NJ:l  
l this process is composed of ... different ... operation ,\8F27  
l along with the use of mUSrCU_}  
l concerning general aspects of Bu_/yKW  
l due to kd55 y  
l for later use in generating..., 9BR/zQ2  
l in turn, 0> {&8:  
l IT IS believed / noted / assumed / suggested / shown / quite m-T@Og  
evident / appears / implies that / intended for / of no important to }\ kLh(  
l it can be claimed/concluded that 3mef;!q  
l it demonstrates the decisions required of |y%pJdPk=  
l it also provides information to .. zy8Z68%E`*  
l it becomes essential to zP554Gr?  
l let ... be the probability that *~Y$8!ad  
l once... is written, it is compiled into... =f~8"j  
l suppose it is observed that lQ&"p+n  
l this is because  fhw J  
X 8/9x-E_  
l this results in a oyw*Z_9~  
l upon completion of the ... analysis, n1XJ uc~  
l when the knowledge is of mathematics or quantum physics, it will LK>A C9ak<  
also be FT'2 J  
recorded in books and papers [KcF0%a  
l selection of rules for using the tools, for generating operation OKo)p`BX  
plans, J^w!?nk  
is another matter of preference, since practice varies greatly. sh#hDU/</  
l for the sake of convenience Ty&Ok*  
l correct decision to be reach Z:(Zy  
l keeping the number of rules to a minimum. [LF<aR5  
l a good process plan will result exhibiting several characteristics: pLdZB9oD]C  
l practical solutions @LyCP4   
l because of rather small job lot sizes (_0r'{`  
l Backward reasoning can be used to answer the question "should uD=FTx  
milling tool be select" different level of knowledge in the realm of _8 C:Md`  
process planning
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沙发  发表于: 2007-11-14   
Very useful, thank u!
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