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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(aF>a\Z  
psb$rbu7[  
u@v0I$  
Beginning 2" (vjnfH  
1. In this paper, we focus on the need for ^:Vwblv(  
2. This paper proceeds as follow. o,a 3J:j]  
3. The structure of the paper is as follows. T7eo_Mn  
4. In this paper, we shall first briefly introduce fuzzy sets and related jBexEdH  
concepts wpw~[xd  
5. To begin with we will provide a brief background on the nKn,i$sO/.  
Introduction I13n mI\  
1. This will be followed by a description of the fuzzy nature of the RFyeA. N  
problem and a detailed presentation of how the required j'lfH6_')e  
membership functions are defined. {3Z&C$:s  
2. Details on xx and xx are discussed in later sections. 7[ )4k7  
3. In the next section, after a statement of the basic problem, various "y@B|  
situations involving possibility knowledge are investigated: first, an "qEHK;  
entirely possibility model is proposed; then the cases of a fuzzy o ~"?K2@T  
service time with stochastic arrivals and non-fuzzy service rule is JCNZtWF  
studied; lastly, fuzzy service rule are considered. !$ikH,Bh  
Review ~fLuys`*:  
1. This review is followed by an introduction. gf6<`+/  
2. A brief summary of some of the relevant concepts in xxx and xxx is =>".  
presented in Section 2. yP\KIm!  
3. In the next section, a brief review of the .... is given. <_&H<]t%rI  
4. In the next section, a short review of ... is given with special regard Y4,~s64e  
to ... FVkb9(WW  
5. Section 2 reviews relevant research related to xx. )&[S*g  
6. Section 1.1 briefly surveys the motivation for a methodology of -E1b5i;f  
action, while 1.2 looks at the difficulties posed by the complexity of OgjSyzc  
systems and outlines the need for development of possibility Sw~jyUEr  
methods. [>xwwm  
Body !gv/jdF  
1. Section 1 defines the notion of robustness, and argues for its >pjmVl w?  
1au1DvH  
importance. I, 9!["^|  
2. Section 1 devoted to the basic aspects of the FLC decision-making k4te[6)  
logic. E!;giPq*n  
3. Section 2 gives the background of the problem which includes xxx Ndq|Hkd  
4. Section 2 discusses some problems with and approaches to, o|lEF+  
natural language understanding. Y 3G$(+i8  
5. Section 2 explains how flexibility which often ... can be expressed ?2l#=t?PP  
in terms of fuzzy time-window :lQl;Q -e  
6. Section 3 discusses the aspects of fuzzy set theory that are used in %(h-cuhq  
the ... lNuZg9h  
7. Section 3 describes the system itself in a general way, including K:&FW l.  
the ….. and also discusses how to evaluate system performance. ](yw2c;m e  
8. Section 3 describes a new measure of xx. sev^  
9. Section 3 demonstrates the use of fuzzy possibility theory in the C YA#:  
analysis of xx. [|PVq#(  
10. Section 3 is a fine description of fuzzy formulation of human .R ocENO0  
decision. ,Oojh;P_  
11. Section 3 is developed to the modeling and processing of fuzzy %''z~LzJ8  
decision rules K 8CjZpzq  
12. The main idea of the FLC is described in Section 3 while Section 4 K 2PV^Y  
describes the xx strategies. #@xSR:m  
13. Section 3 and 4 show experimental studies for verifying the Oo{+W 5[  
proposed model. *gRg--PY%  
14. Section 4 discusses a previous fuzzy set-based approach to cost m~Q]#r  
variance investigation. .),%S}  
15. Section 4 gives a specific example of xxx. Am=D kkP%  
16. Section 4 is the experimental study to make a fuzzy model of 5m2(7FC%su  
memory process. k{ >rI2;  
17. Section 4 contains a discussion of the implication of the results of v#u]cmI  
Section 2 and 3. z-(@j;.  
18. Section 4 applies this fuzzy measure to the analysis of xx and x  8lgDO  
illustrate its use on experimental data. ]Cd 1&  
19. Section 5 presents the primary results of the paper: a fuzzy set 1Y iUf  
model .. Pk444_"=  
Qd"{2>  
20. Section 5 contains some conclusions plus some ideas for further [OJ@{{U%  
work. ;EstUs3  
21. Section 6 illustrates the model with an example. l/[0N@r~  
22. Various ways of justification and the reasons for their choice are %m[ :},  
discussed very briefly in Section 2. _urv We  
23. In Section 2 are presented the block diagram expression of a a x1  
whole model iyNyj44 H  
of human DM system s>`$]6wPa  
24. In Section 2 we shall list a collection of basic assumptions which ~?&;nTwHe  
a ... scheme must satisfy. OD5c,IkWB  
25. In Section 2 of this paper, we present representation and oj*5m+:>a  
uniqueness theorems for the fundamental measurement of fuzziness R?3^Kx  
when the domain of discourse is order-dense. ^S!^$d*  
26. In Section 3, we describe the preliminary results of an empirical De`)`\U  
study #I[tsly}  
currently in progress to verify the measurement model and to `9M:B&  
construct membership functions. |,CWk|G  
27. In Section 5 is analyzed the inference process through the two kma>'P`G  
kinds of inference experiments... y<wd~!>Ubu  
This Section <`G-_VI  
1. In this section, the characteristics and environment under which ?RIf0;G  
MRP is designed are described. #0Uz1 [  
2. We will provide in this section basic terminologies and notations T$AVMVq  
which are necessary for the understanding of subsequent results. FzP1b_i  
Next Section Zy.ls&<:  
2. The next section describes the mathematics that goes into the >qOj^WO~  
computer implementation of such fuzzy logic statements. kj.9\  
3. However, it is cumbersome for this purpose and in practical Hq,@j{($  
applications the formulae were rearranged and simplified as 8h4]<T  
discussed in the next section. ,Vo[mB  
4. The three components will be described in the next two section, ~t/i0pKq.  
and an example of xx analysis of a computer information system will RHpjJZUV  
>T\@j\X4  
then illustrate their use. s$(%?,yf2  
5. We can interpret the results of Experiments I and II as in the ( fr=N5   
following sections. ~ iQBgd@D^  
6. The next section summarizes the method in a from that is useful F u^j- Io  
for arguments based on xx Z h9D^ I  
Summary V82I%gPF  
1. This paper concludes with a discussion of future research ,!GoFu  
consideration in section 5. '1xhP}'3)  
2. Section 5 summarizes the results of this investigation. I"x~ 7  
3. Section 5 gives the conclusions and future directions of research. | 5:2 ?S2R  
4. Section 7 provides a summary and a discussion of some extensions VCiq'LOR,<  
of the paper. C984Ee  
5. Finally, conclusions and future work are summarized sf[|8}(  
6. The basic questions posed above are then discussed and rIYO(}Fl  
conclusions are drawn. 6&0G'PMf  
7. Section 7 is the conclusion of the paper. S w%6-  
Chapter 0. Abstract mvc ;. +  
1. A basic problem in the design of xx is presented by the choice of a =Ry8E2NuM  
xx rate for the measurement of experimental variables. Yb_HvP  
2. This paper examines a new measure of xx in xx based on fuzzy _j3rs97@|  
mathematics which overcomes the difficulties found in other xx %8%|6^,  
measures. CDXN%~0h  
3. This paper describes a system for the analysis of the xx. ov H'_'  
4. The method involves the construction of xx from fuzzy relations. .boB b<  
5. The procedure is useful in analyzing how groups reach a decision. 8 l)K3;q_  
6. The technique used is to employ a newly developed and versatile c}|.U  
xx algorithm. S5, u| H  
7. The usefulness of xx is also considered. %t!r pyD  
8. A brief methodology used in xx is discussed. &"gX 7cK8  
9. The analysis is useful in xx and xx problem. lo'#dpt<  
10. A model is developed for a xx analysis using fuzzy matrices. /wJ4hHY  
11. Algorithms to combine these estimates and produce a xx are j6~`C ?(  
2|i1}  
presented and justified. ~*y7%L4B  
12. The use of the method is discussed and an example is given. OPE+:TvW^  
13. Results of an experimental applications of this xx analysis }vx,i99W?  
procedure are given to illustrate the proposed technique. &qSf ~7/  
14. This paper analyses problems in &08dW9H  
15. This paper outlines the functions carried out by ... U=j`RQ 9,  
16. This paper includes an illustration of the ... |&-*&)iD|w  
17. This paper provides an overview and information useful for \nuz l   
approaching R=, pv'  
18. Emphasis is placed on the construction of a criterion function by KQ6][2-  
which the xx in achieving a hierarchical system of objectives are ;@gI*i N"  
evaluated. lf KV%  
19. The main emphasis is placed on the problem of xx lH/" 47  
20. Our proposed model is verified through experimental study. L7GNcV]c  
21. The experimental results reveal interesting examples of fuzzy ` -SC,qHw  
phases of: xx, xx XUR#|  
22. The compatibility of a project in terms of cost, and xx are likewise .=G3wox3  
represented by linguistic variables. hR2 R  
23. A didactic example is included to illustrate the computational QqW N7y_9  
procedure )g $T%  
Chapter 1. Introduction ,-k?"|tQ  
Time jVGAgR=[G  
1. Over the course of the past 30 years, .. has emerged form intuitive a Iyzt  
2. Technological revolutions have recently hit the industrial world )>Z @')Uk:  
3. The advent of ... systems for has had a significant impact on the yHs9J1S f  
4. The development of ... is explored x#5[i;-c  
5. During the past decade, the theory of fuzzy sets has developed in a  ('BB9#\t  
variety of directions F2Ny=H &G  
6.The concept of xx was investigated quite intensively in recent years q%f90  
7. There has been a turning point in ... methodology in accordance !{(crfXB  
with the advent of ... Pd d(1K*  
8. A major concern in ... today is to continue to improve... YbWz!.WPe  
9. A xx is a latecomer in the part representation arena. j1+I_   
V8o, e  
10. At the time of this writing, there is still no standard way of xx J &=5h .G$  
11. Although a lot of effort is being spent on improving these ]0%{ IgB  
weaknesses, the efficient and effective method has yet to be <.BY=z=H  
developed. Iw#[K  
12. The pioneer work can be traced to xx [1965]. PV=sqLM~  
13. To date, none of the methods developed is perfect and all are far :AuKQ`c  
from ready to be used in commercial systems. ev/)#i#s{  
Objective / Goal / Purpose v!<FeLW  
1. The purpose of the inference engine can be outlined as follows: l_+q a6C*  
2. The ultimate goal of the xx system is to allow the non-experts to k!+v*+R+V  
utilize the existing knowledge in the area of manual handling of loads, }PDtx:T-  
and to provide intelligent, computer-aided instruction for xxx. _XrlCLp: d  
3. The paper concerns the development of a xx Z.aeE*Hs$  
4. The scope of this research lies in ?h#F& y  
5. The main theme of the paper is the application of rule-based Y1qbu~!  
decision making. E J6|y'  
6. These objectives are to be met with such thoroughness and B*QLKO:)i  
confidence as to permit ... YVz,P_\(m  
7. The objectives of the ... operations study are as follows: q="ymx~  
8. The primary purpose/consideration/objective of W7~OU(}[`  
9. The ultimate goal of this concept is to provide =G'J@[d{d  
10. The main objective of such a ... system is to "Nq5FcS9  
11. The aim of this paper is to provide methods to construct such 4Xn-L&0z  
probability distribution. ;1TQr3w  
12. In order to achieve these objectives, an xx must meet the uBM%E OE  
following requirements: 4!'4 l=jO  
13. In order to take advantage of their similarity poi39B/Vt  
14. more research is still required before final goal of ... can be -b  )~  
completed 9Z3Y,`R,  
15. In this trial, the objective is to generate... "!Hm.^1  
16. for the sake of concentrating on ... research issues 3|/zlKZz  
17. A major goal of this report is to extend the utilization of a recently nqcD#HUv  
developed procedure for the xx. _]+ \ B  
\ERHnh  
18. For an illustrative purpose, four well-known OR problems are 79'N/:.  
studied in presence of fuzzy data: xx. _ukBp*u  
19. A major thrust of the paper is to discuss approaches and %b ^.Gw\L  
strategies for structuring ..methods @CCDe`R*  
20. This illustration points out the need to specify p,OB;Ncf/  
21. The ultimate goal is both descriptive and prescriptive. wF['oUwHH  
22. Chapter 2. Literature Review \!r,>P   
23. A wealth of information is to be found in the statistics literature, ?NUDHUn_  
for example, regarding xx lhFv2.qR  
24. A considerable amount of research has been done .. during the D}pN sQ  
last decade ;J?zD9  
25. A great number of studies report on the treatment of B%Z,Xjq  
uncertainties associated with xx. g; ZVoD  
26. There is considerable amount of literature on planning tWI4x3 &2  
27. However, these studies do not provide much attention to <cR]-Yr~  
uncertainty in xx. Hl*/s  
28. Since then, the subject has been extensively explored and it is / y5a~3  
still under investigation as well in methodological aspects as in *JY2vq  
concrete applications. :*E#w"$,j  
29. Many research studies have been carried out on this topic. tc)4$"9)  
30. Problem of xx draws recently more and more attention of system { daEKac5  
analysis. XZ1<sm8t."  
31. Attempts to resolve this dilemma have resulted in the |gJI}"T  
development of !" 7ip9a  
32. Many complex processes unfortunately, do not yield to this )?,X\/5  
design procedure and have, therefore, not yet been automated. A>Oi9%OY:  
33. Most of the methods developed so far are deterministic and /or mM;p 7 sJ  
probabilistic in nature. m<e-XT  
34. The central issue in all these studies is to P{h$> 6c  
35. The problem of xx has been studied by other investigators, p |xMXoa`  
however, these studies have been based upon classical statistical g{$F;qbkO  
approaches. ?Y#x`DMh  
36. Applied ... techniques to I'T@}{h  
37. Characterized the ... system as YA4;gH+  
{qjw  S1v  
38. Developed an algorithm to Nh/B8:035  
39. Developed a system called ... which ^bDh[O  
40. Uses an iterative algorithm to deduce 8X2NEVH]  
41. Emphasized the need to -H(\[{3{V  
42. Identifies six key issues surrounding high technology ]2o?Gnn@  
43. A comprehensive study of the... has been undertaken ]&RC<imq  
44. Much work has been reported recently in these filed ;Jq 7E  
45. Proposed/Presented/State that/Described/Illustrated/ #99fFs`w  
Indicated/Has shown / showed/Address/Highlights ;p4|M  
46. Point out that the problem of ;wvhe;!  
47. A study on ...was done / developed by [] Vy giR|f-  
48. Previous work, such as [] and [], deal only with ('7qJkV  
49. The approach taken by [] is BK16~Wl  
50. The system developed by [] consists mU3 @|a/@0  
51. A paper relevant to this research was published by [] AUvUk<a  
52. []'s model requires consideration of... \9GJa"xA`  
53. []' model draws attention to evolution in human development S>s{ t=AY~  
54. []'s model focuses on... MTxe5ob`$Q  
55. Little research has been conducted in applying ... to +:&,Ts/  
56. The published information that is relevant to this research... =u#xPI0:  
57. This study further shows that .Q^8 _'ZG  
58. Their work is based on the principle of cK(S{|F  
59. More history of ... can be found in xx et al. [1979]. bW9a_myE  
60. Studies have been completed to established xmI!N0eta  
61. The ...studies indicated that `swf~  
62. Though application of xx in the filed of xx has proliferated in -'iV-]<  
recent years, effort in analyzing xx, especially xx, is lacking. <+wbnnK  
Problem / Issue / Question (dh{Gk4=+  
63. Unfortunately, real-world engineering problems such as Z*Fxr;)d  
manufacturing planning do not fit well with this narrowly defined  aX'R&R  
model. They tend to span broad activities and require consideration A=S_5y  
of multiple aspects. Y "RjMyQh  
64. Remedy / solve / alleviate these problems z[q#Dw  
67. ... is a difficult problem, yet to be adequately resolved x8]5> G8(r  
'4""Gz  
68. Two major problems have yet to be addressed np#RBy  
69. An unanswered question cU^Z=B  
70. This problem in essence involves using x to obtain a solution. \<bar ~  
71. An additional research issue to be tackled is .... )_\ZUem  
72. Some important issues in developing a ... system are discussed dfss_}R  
73. The three prime issues can be summarized: V#Hg+\{d  
74. The situation leads to the problem of how to determine the ... };z[x2l^  
75. There have been many attempts to B?c n5  
76. It is expected to be serious barrier to &r)i6{w81  
77. It offers a simple solution in a limited domain for a complex xElHYh(\  
problem. sKvz<7pag  
1. There are several ways to get around this problem. >*hY1@N1  
2. As difficult as it seems to be, xx is by no means new. ve [*t`  
3. The problem is to recognize xx from a design representation. $i^#KZ}-WK  
4. A xx problem can trace its roots to xx. M :4N'#`  
5. xx [1987] used a heuristic approach to simplify the complexity of rX- V0  
the problem. + ~6Nq(kV  
6. Several problems are associated with them. {g%F 3-  
7. Although some progress has been made in this area, at least two bP4<q?FKcN  
major obstacles must be overcome before a fully automated system O$2= Z  
can be realized. nbVlP  
8. Most problems in practice are complicated ]Ywj@-*q  
9. More problem surface here. 6WN1D W  
10. Hamper effort toward a xx system Y ~|C]O  
11. In order to overcome the limitations due to incomplete and s C/5N  
imprecise xx knowledge, a xx program has been developed, which u;[*Z  
bases its knowledge upon the statistical analysis of a sample HH\6gs]u  
population of xx Bbb_}y|CA  
12. The above difficulties are real challenges faced by researchers lO Rym:P  
attempting to develop +, SUJ|  
13. This type of mapping raises no controversy to the issue of cVg!"  
membership function determination. ,}("es\b  
14. However, attempts to quantify the xx have met both theoretical $6(,/}==0  
and empirical problems. Slk__eC  
*bl*R';  
15. It has become apparent that in order to apply this new M!{;:m28X!  
methodological framework to real-world problems and data, we have * 5H  
to pay attention to the problems of xx and xx. ^x! N]  
Chapter 3. Proposed methodology muAI$IRR   
Assumption +w(sDH~kd  
1. In the case when the assumption of a xx seems to be too 986y\9Zu  
restrictive or inadequate, the formulation with Fuzzy termination (1 L9K;  
time, i.e. given by a fuzzy set in the space of control stages, may be KRY%B[k  
applied. 'u \my  
2. We assume here the fuzzy constraints to be state-dependent, and zyznFiE  
the fuzzy goal to be the same for all the control states, xx, which l17sJ!I  
stems from the problem's nature. :YZqrcr}  
3. An approach to the solution of this problem is presented under the ,qx;kJJ  
assumption that the sampling rate Decision can be made prior to the m+f?+c6  
execution of the experiment, as opposed to being made while the (QO8_  
experiment is in progress. W[5a'}OV  
4. Another assumption made above is that there are precise odds at i \2d1Z  
which the expert is indifferent. `^rN"\  
5. Main simplifying assumptions are: GI&XL'K&  
6. This, in our view, is a questionable assumption. Orb('Z,-3  
Outline / Structure / Module J>I.|@W4  
1. An outline of the research SR,id B&i  
2. Information is incorporated within the scheme &"D *  
3. Is built into ... structure E]^wsS>=  
4. A nice modular structure. a(+.rf;  
5. The principles of ... are applied as modularized criteria =}:9y6QR.  
Classification uQ^r1 $#  
1. A xx system comprises three main components: we6kV-L.  
2. Must decompose the original .. into a set of .. 24ojjxz+  
3. Consists of the following steps: ~0mO<0~  
4. This is summarized in the following steps: 7pB5o2CD0  
P'.M.I@  
5. Can be broadly classified into the following areas: !"*!du28jo  
6. Can be characterized by its function of effectively processing the &WSxg&YG)\  
7. Can allow further breadth of application of ...into more CNC3">Dk~9  
8. The following steps should be followed 'A0.(a5  
9. xx can be classified by a different ways. I~LN)hqdo  
10. Based on the xx, one may classify xx into the following: #cG7h( !  
11. This catalog may change due to wear, breakage, and purchasing. OnNWci|7  
System "62vwWrwO  
1. Unlike many conventional program, expert systems do not p0 @ ,-  
usually deal with problem for which there is clearly a right or wrong o,| LO$~  
answer. R,mOV8y"W[  
2. The system consists of both ... and ... wVSM\  
3. The system has a hierarchical modular architecture organized on axJuJ`+Y  
three levels. +mM=`[Z`??  
4. expert system domains are area of expertise E5a1 7ra  
5. To develop a xx system for xx, the following factors must be #fq%903=  
considered: r)ni;aP  
6. The system has been developed / designed to determine l@ +lUx8  
7. The system has proven to be able to BCDmce`=l  
8. The domain in which an expert system operates is a particular tUS)1*{_  
domain &`#k 1t'  
9. The system comprises a ... with 81m3j`b  
10. The system is [feature-oriented ] / based on the ... technique \rXmWzl{  
11. The system environment must be relatively stable {M`yYe o  
12. The system is utilized to generate, load, store, update and $;kFuJF  
retrieve ... 4 & r5M  
13. The development of a xx system has two stages: xx stage and xx sK)fEx  
stage. s)Gnj;  
14. The most essential part of .. system is the ... 3 Go/5X/  
15. The successful developments in ESs have made them an glMYEGz6p  
important tool in the development of 6`K R  
16. An automated system was developed for @vsgmz  
17. In this case, the system can be considered to be generative. j@N z  
06ndW9>wD)  
18. An interactive automatic ... system w}8 ,ICL  
19. A …. is commonly thought of as a truly integrated .. system t0*kL.  
20. Should be capable of being generated from a ... system r] h>Bb  
21. xx is an important part of the integrated system. I5nxY)v  
22. The model consists of four rule bases, each of which addresses a <WXGDCj  
separate problem in the hierarchy of scheduling decision. 968<yO]  
23. The rule bases are linked to each other in a chin-like manner in C bWz;$r  
the sense that the consequent of one rule base constitutes a part of \ a#{Y/j3  
the antecedent of the next rule base. % G'{G  
24. The rule base consists of all possible combinations of the lN(|EI  
linguistic terms associated with the linguistic variable of the  lu_kir~  
antecedent of a rule. QN4{xf:}S  
Computer System /9SEW! E  
1. The system has been implemented using Prolog language in an |IcA8[  
MS-DOS environment. Prolog was chosen because it offers a well L3/SIoqd  
known and flexible environment in which fuzzy reasoning may be d4ga6N3'  
easily implemented. #EG W76 f  
2. The current version of the xx program when compiled with H{)DI(,Y^P  
WATFOR77 results in an executable code of about 270K bytes. Arr(rM  
Typical run time, when run on a XX computer (an IBM compatible ?\Bm>p% +  
machine) operating at 4.77 Mhz with 640K RAM, ranges from 10 min !W\za0p  
to 2h, depending on the size (or complexity) of the problem. {yzo#"4Oy  
3. Time consuming procedures have been implemented in w@![rH6~F  
C-language and directly linked to the Prolog environment. D'8xP %P  
4. The xx process, once the xx's data has been entered, requires ]|xfKDu  
approximately 180 seconds. (]@yDb4  
5. It should be noted that the computation was done with a 20 Hhz, 9ZD>_a  
80386..209;based microcomputer equipped with a 80387 math MJ\^i4   
co-processor. |F}6Zv  
6. The computer programs used for the analyses, one based on the xx [g/ &%n0^  
method and the other based on the new method, were written in E%b*MU  
FORTRAN with a compiler that supports the math co-processor. zhC#<  
7. Lisp, Prolog give maximum flexibility but also maximizes tLE7s_^  
[mcER4]}  
development time. N x;Oz  
l Internal representation is the way a model is represented in the z%q)}$O  
computer. l!*!)qCB(S  
l An interactive menu-driven procedure is used in this study f-BPT2U+  
l Shell can be develop very fast at the cost of time fairly severe y$K[ArqX  
limitations. Yn_v'Os2  
l While there is no measurable saving of time for the case involving Xk(p:^ R  
five criteria, the saving is dramatic for the case involving 10 criteria o.g)[$M8cF  
-- the computation time reduces from 10 hr 40 min to about 1 min. [BTOs4f  
l This combination is being implemented in an objected-oriented $xqX[ocor  
programming environment (Smalltalk-80 system) to solve problems YXLZ2-%ohZ  
encountered in construction xxx. GK`U<.[c  
Method / Approach / Study / Process Model / Equation /Algorithm / h:=W`(n5u  
Rule / Formula / Technique `]I p`_{  
l A discussion is presented of a problem-solving system {O!B8a    
l To improve the efficiency of the method, the following approach fyF8RTm{  
may be applied. !!<H*9]+W;  
l In order to an investigation was made to find the causes of the Ly-}HW(  
l Although large collections of rules and equations have been gX~lYdA  
complied, none are generally accepted Y#zHw< <E  
l This approach will be explained and discussed thoroughly in the -`CE;  
body of the report. IP!`;?T=  
l This can be accomplished by d$HPpi1LL  
l This algorithm to compute the total cost can be described step by w\1K.j=>|N  
step as follows: WCP2x.gb5  
l The above preliminary analysis has provided important 4 C }#lW9  
information P>hR${KE  
l Various methods have been proposed for selecting an optimum... ";Q}Gs}  
l These concepts have been applied to C  ~Doj  
l On the basis of the concept mentioned above,  (H;,E-  
l This can be achieved by wln"g,ct  
l This fact suggests that a new concept Z4dl'v)9  
l This was accomplished by taking ... -#Jp@6'k%  
Eih6?Lpu  
l The preparatory stage is very time consuming process. fuT Bh6 w&  
l Test are performed for validity, completeness, and compatibility p^s:s-"f\  
l There is little hope of achieving successful ... u =lsH  
l There has been an increasing awareness of the potential of using Y+DVwz$  
most ..so far made have not taken this approach, with the exception #'97mg  
of UHS "{%  
l Only a few studies can be found. ujr"_ofI  
l It is a very tedious process to go through A}[x ))r  
l It is only when .. has been completed that .. may be effected U U3o (Yq  
l The entire interpretation process is conducted in one's head. K.Y.K$NjP{  
l These approaches are sometimes very tedious. <l< y R?  
l Several techniques can be used 'u9y\vUy  
l A polynomial parametric model can be written as [the A&V'WahC@I  
following]/[follows]: ~En]sj  
l A xx model is constructed/formulated using xx. U2 Cmf  
l A xx model represents an xx by its xx. B D [<>Wm  
l A process decision model captures the logic essential to k{ulu  
l From the equation above, xx is equal to the summation of xx L-Mf{z  
times the ... 6('CB|ga  
l The validity of a xx model can be checked using Euler's formula. w3M F62:  
l Given a model, one can mathematically determine whether ... or ... S& F;~  
l Equations for xx need to be derived and implemented in the _opB,,G  
system. ,L; y>::1  
l A number of heuristic rules have been developed for A3|X`X  
l Optimum .. techniques can be made more reliable by ... so that Q zY5S0  
l An algorithm based on the characteristic ... is used to determine QwLS L<.  
l Euler's formula states the following: M %!O)r#Pn  
l The completed model should agree with the formula. /d> Jkv  
l For manufacturing purposes, a detailed and precise model of the p-h(C'PqF  
object is necessary  dK]#..  
l Engineering design models are very well defined; therefore, " t,ZO  
l To keep the domain narrow enough to be implementable, yet wide GK{~n  
enough to `~1#X  
be useful. ySH io;g9  
Er|j\(jM  
Point of View ckbD/+  
l from an implementation standpoint, 7e Hj"_;  
l From the point of view of this application, `m\ ?gsw7  
l From this point of view, Zadeh suggested an inference rule named h_B  nQZ\  
xxx (CRI for short). |9mGX9q  
l Information is the meaningful interpretation and correlation of x";4)u=  
some aggregation of data in order to allow one to make decisions. k"+/DK,:  
l From a practical point of view, the computational aspects of an "F?p Y@4  
FLC require a simplification of the fuzzy control algorithm. tY60~@YO&  
l The use of a hammer to insert screws, although partly effective, bK|n xL  
tends to distort, destroy, and generally defeat the purpose of using a `)M&^Z=D  
screw [Kusiak AI Implications for CIM p.129] Se [>z(  
Justification L/,M@1@R  
l We choose the so called xx in our experiment because it has .19_EQ>+  
received wide acceptance and can WB"90!  
l Prolog was chosen because it offers a well known and flexible DK<}q1xi  
environment in which fuzzy reasoning may be easily implemented. 2`V(w[zTr  
l The rationale behind this is that it can be much easier for an =64Ju Wvo  
estimator to rate a cost as high than to attempt to place a dollar @XH@i+ {B  
value on the estimate. U)SQ3*j2D  
l This strategy has been widely used in fuzzy control applications ;RW5XnVx  
since it is natural and easy to implement. (~^KXJ{->  
l A function definition expresses the membership function of a SKJ'6*6  
fuzzy set in a functional form, typically a bell-shaped function, etc. 8CRwHDB  
Such functions are used in FLC because they lead themselves to dEfP272M  
manipulation through the use of fuzzy arithmetic. =l%|W[OO  
l It should be noted that in our daily life most of the information on Ar`U / %Cu  
which our decisions are based is linguistic rather than numerical in sl*&.F,v=  
nature. Seen in this perspective, fuzzy control rules provide a natural 4x" je  
framework for the characterization of human behavior and decisions 0~ cbB  
analysis. B`|H }KU  
l Many experts have found that fuzzy control rules provide a jk5C2dy  
J_&G\b.9/  
convenient way to express their domain knowledge. This explains cN| gaL  
why most FLCs are based on the knowledge and experience which l6-%)6u>  
are expressed in the language of fuzzy "if-the" rule. (?z"_\^n/  
Chapter 4. Examples G V%@A  
Example/ Data }?Tz=hP  
l The data used in the following example was taken from an vVH*\&H\T  
experiment in which xx was measured between x and x using a xx rv %^2h<&  
technique. Xl /2-'4  
l The data consists of over xx measurements. \`YV)"y" ~  
l An example of xx is discussed and the control rules of xx are h\*I*I8C  
compared with a xx $!:xjb  
l Examples of complex processes to which this technique may be CK1gzIg>  
applied are xx, xx, etc. v;IuB  
l The following example is constructed only for the purpose of Z|zT%8.8N  
illustrating the computational procedure discussed. T$4Utd5[z'  
l This example clearly demonstrates that the profile of an individual a`zw5  
xx, or a very small group of xx, with no enough data to be studied D<xDj#Z~1  
statistically, can be meaningfully analyzed by fuzzy possibilistic >FReGiK$T  
methods. oOHr~<  
l There is no space here to go into detail on all these methods, but  ~b LhI  
deserve a mention and the bibliography will point to detailed r#/Bz5Jb*  
references for those wishing this level of detail. #[NNb?`F  
l Note that the golf ball spotting example is used throughout the W&Kjh|[1QZ  
paper. N1u2=puJY  
Comparisons Ixv/xI  
l As well, the pros and cons of these representations from a process O_y?53X  
planning point of view will be discussed. C\; $RH  
l The method of using xx to implement xx described by Zadeh pN7 v7rs  
(1973) appeared more suitable ~QE-$;  
l As discussed [in the previous section]/[preciously], 2~2j?\AEd.  
P};GcV-  
Relation jd?NN: 7  
l We can not invert F' directly because it defines a many-to-one ]eIV'lP,j/  
mapping. (Y$48@x  
l The relationships appear very complicate 2q*aq%  
l Lifting tasks involve complex and imprecise relationship between # dxS QmG  
the task variables and the human operator's characteristics. 1PjqXgN5p  
l These methods are based on the relationship between ... and ... T&~7*j(|e  
l The fundamental concept of a fuzzy rating language is that we can N3rQ]HZiP  
establish a relationship among terms such as high, medium, and low, {>R'IjFc  
and then modify these relationships. F otHITw[  
l This article will thus mention the latter as well as the former. %t<ba[9F  
l The former two bear a close relation to a fuzzy Cartesian product. N"rZK/@}  
Importance [p[C45d=<  
l The emphasis is on an implementation of a general approach to Qv>rww]  
rule based decision making. Vm <9/UG<  
Consideration / Attention 6 %RN-  
l Careful evaluation is necessary to ensure p7kH"j{xD  
l Such a formulation does not change further considerations. kw.IVz<  
l Considerable attention has been paid to BbdJR]N/!h  
l Attention should be paid to an important finding of this sCE2 F_xjL  
investigation. rc9Y:(S1l  
l Caution should be exercised in this process to avoid ... K?:wX(JYT  
l Primary consideration is given to ... components, though others =j{r95)|u  
can be accommodated <m3or  
l After ... has been defined by ..., a carefully analysis is carried 4%L-3Ij  
out/performed to determine ,Y3wXmG  
l A number of factors such as ...need to be taken into consideration lSk<euCYs  
before making the appropriate decision. --9Z   
l It should be noted that hfuGCD6F`  
l It is important to point out that ... _cW6H B^j  
l These considerations have heightened interest in the possibility of r06M.r   
providing ... +\O[)\  
tuiQk=[ c  
l We should stress the fundamental importance of the xx j |tu|Q  
Chapter 5. Results. bG6<=^  
Advantages / Disadvantage MlM2(/ok  
l One of the major advantages of this new measure of xx is that it 4fCg{  
can be applied to the experimental study of 2!4.L&Ki  
l One advantage of using a .. is the ease of preparing it. _7M!b 9oA  
l The xx system is versatile yw( E}   
l It has a very fast decision making process 2i@t;h2E  
l All the algorithms involve mostly logical operations. U5z}i^8a  
l It can be easily and without additional cost implemented in a 9C{\=?e;  
microprocessor-based environment. *KXg;777  
l It can reduce the waste of designing from scratch. qWzzUM1=  
l The advantages of using a xx to represent xx are the following: b:iZ.I  
l However, xx is not without its shortcomings. 9 A4h?/  
l In most cases, the xxx shows an improvement over the existing ,OQ!lI_`R  
xxx. weOzs]uc  
l Compared to the existing xx, the impacts of the xx are generally R;XR?59:.  
reduced by 5% to 9%. B~u_zZE  
l The "best case" results shows a savings of 6% to 9%. =!#i C?I  
l Most of the existing works based on xx approach can only $pT%7jV}  
recognize a xx . #NVq S5  
l Most of the above methods are computational expansive and >Ufjmm${  
limited to xx. W].P(A>m  
l Some other advantages of xx are the following: !7g E  
l The problem is the limitation of this method to a limited domain of %acy%Sy  
parts. #&1Y!kbdd  
l It proved limited in application because it demanded precision in vl@t4\@3  
system modeling that was impossible in practice. MGO.dRy_  
l There are advantages to be gained in the structuring of costs and sK:,c5^  
benefits, the use of xx, P#H#@ :/3  
l The disadvantages of this method are also disadvantages of ;UgRm#  
conventional xx approaches. f=}Mr8W '  
/S;o2\  
l This combines the best features of both techniques oT5xe[{yj  
l Hopefully, this tool can be as the reference framework of for %f;(  
developing a xx platform, and helping the administration, marketing, '3o0J\cz  
and knowledge management activities in virtual communities. ucj)t7O   
Results Kfj*uzKB  
l An improvement on the result shown above can be made by based Et'C4od s  
on the data provided F$ .j|C1a  
l Discussion of these theories is beyond the scope of this review 2LYd # !i  
l Based on the information contained in this &Jj> jCg  
l The result can be categorized into nine classes .bl0w"c^qq  
l The results are illustrated by an example Ut-6!kAm  
l The experimental results for each xx time are reported in Table 2. *:.0c  
l From the results obtained so far, it seem that <nsl`C~6g0  
l Because of the inaccuracy of the ..., a conclusion cannot be drawn LbR/it'}  
as ?<frU ,{  
l Although much effort has been made to., this reality is far from ):78GVp  
completion. 29ft!R>[  
l The results indicate that the total benefits are higher than the \ b9,>  
total costs. qd|*vE  
l Their results may then serve as guidelines for lower level models, *gz{:}NX  
less fuzzy and more detailed. xdo{4XY^*W  
Chapter 6. Conclusion p>eD{#2  
l From the discussion, one may conclude that ... Y0B*.H Ae  
l Form the above discussion, the conclusion can be reached that 3/rvSR!  
l The conclusions drawn are also valid jPU# {Wo#  
l In conclusion to this, it becomes obvious that the problem of xx /#G"'U/  
lies not only in... a3c4 #'c|D  
l We have attempted to introduce some concepts associated with a .`'SL''c  
theory of !RcAJs'  
xx based on fuzzy sets. y]jh*KD[  
l Considerable more work, hopefully, will be done in this area |C&eH$?~=R  
l A fuzzy set procedure is proposed to solve xx selection problems 8&C (0H]1  
e4)g F*  
interwoven with imprecise data rFy9K4D  
l Employing the compositional rule of inference, the assessment of n&C9f9S  
the xx compatibility in achieving prescribed xx projectiles in any j=AJs<  
level of the hierarchy is made possible. ONGe/CEXT  
l This paper has presented a theoretical and experimental study of fBLd5  
the xx process and xx concept. ?*s!&-KI  
l The experimental research results will hopefully serve as useful yX~[yH+Pn  
feedback information for improvements for xx work. QNJG}Upl  
l The scope of this contribution was to introduce a xx method. a ;S^<8  
l In general, fuzzy sets theory provides an alternative foundation C95,!q  
for xx analysis in a fuzzy environment. | fI%L9  
Future Research O^xt  
l Thus, first extension of the approach could be, ~Op1NE  
l Present some cues for a further approach from Fuzzy Sets Theory UA8!?r-cR  
application to u9gr@06  
l Some improvements to the scheduling aspect of the model may lhI;K4#  
be brought through additional levels in the hierarchy for more >gSerDH8\  
detailed representation of the scheduling activity. PW`Tuj  
Tables and Figures Na6z,TW  
l Figure 7-1 sketches these relationships. \Cs<'(=  
l The graphical representation of these functions is shown in Figure LX fiSM{o  
1. |:#mw 1  
l The xx may be depicted as in Figure 1. 9>#|~P&FE  
l Figure x shows the schematic diagram of the 9vbh5xX   
l Figure 1 though 2 provide a ... that Xdq, =;  
l the architecture of this expert system for .... is illustrated in Figure 'MUrszOO.e  
2. O$H150,Q  
l Figure 2 gives the outline of an ... system _5T7A><q<  
l Table shows the @,MdvR+a  
l as shown in Table 1 and 2 vOK;l0%  
l This concept is illustrated in Figure 2 S2R[vB4).  
l At the top of Table xx are shown two blocks of data. `g1Oon_  
I5L7BTe  
l Each table or matrix has constructs xx through xx as 2f!oA~| 2  
row-headings, QP B"E W  
xx through xx as column-headings. %-l:_A  
l A table of .. is developed and significant recommendations are V8yX7yx  
made. .NT&>X~.V  
CONJUGATION 9>R|k$`  
To Indicate Addition sPg6eAd~?  
l additionally, again, also, and then, as can be easily understood, >p*HXr|o$  
besides, equally important, especially, finally, for the same reason, $t$f1?  
first, further, furthermore, in addition, last, likewise, moreover, next, [bv@qBL  
second, third, too, evidently, obviously, roughly speaking, broadly n6 G&^Oj  
speaking aELT"b,x  
To Indicate Cause and Effect ['emP1g~  
l accordingly, as a result, consequently, for this reason, hence, in A{2$hKqHi  
short, otherwise, then, therefore, thus, truly uAs*{:4n  
To indicate Comparison %-/:ps  
l in a like manner, likewise, similarly , alternatively ]&U|d  
To Indicate Concession _CJr6Evs  
l after all, although this may be true, at the same time, even though, ?ev G=S4>  
even so , I admit, naturally, of course gVU\^KN]  
To Indicate Contrast +~Lzsh"  
l and yet, at the same time, but, for all that, however, yet, in fact, in xqWrW)  
contrast, in the real life, in spite of, nevertheless, notwithstanding, y]]Vp~R:[  
normally, on the contrary, on the other hand, still, traditionally, HoE.//b  
rather, unfortunately, 0t/y~TrBY  
To Indicate Time Relationships: ""'eTpe  
after a short time, afterwards, as indicated earlier, as long as, as soon /v)!m&6]>  
'Y{ux>  
as, at last, at length, at the moment, at that time, at the same time, jfPJ5]Z  
before, earlier, currently, immediately, in the meantime, in recent fC GDL6E  
years, lately, later, meanwhile, often, of late, presently, recently, SE9u2Jk  
soon, shortly, since, thereupon, temporarily, therefore, until, when, ~oA9+mT5  
while gDNTIOV  
To Indicate Special Features or Examples: vDeG20.?Z  
for example, for instance, incidentally, indeed, in fact, in other words, `J#xyDL6?  
in particular, in practice, specifically, that is, to illustrate, in this sx< + *Trl  
respect, theoretically, as mentioned before / above 5'c+313 lm  
To Indicate Summary: v#%>uLl  
in brief, in conclusion, in short, in summary, on the whole, to - )a_ub  
conclude EXW 6yXLV  
, in general, to summarize, to sum up, as a result, ultimately, VWA-?%r  
VERB PHASE BdB`  
l build a .. model _l!U[{l*d  
l build up the key link yp2'KES>  
l began a new era in ... }RN=9J  
l can be regarded as / achieved / used to/for / found / obtained JIbzh?$aD  
through YNgR1 :l  
l can result in 3@TG.)N4  
l carries out ... tasks r< ?o}Qq  
l production information in order to simultaneously vgQh dtt  
l contains all information necessary to describe Q$.V:#  
l do not make use of production information "E ok;io  
l deals with =O3I[  
l end with failure 8A8xY446)  
l fetch the information from the model directly Sp`fh7d.(  
l has great potential / yet to be resolved / spurred the ttbQergS  
development of / }lC64;yo  
been recognized as DA4edFAuE  
l BE aimed at / built up / carried out by / essentially concerned _]=TFz2O  
Qor{1_h)+9  
with / considered to be the key technology / associated with each Jp.3KA>  
feature of a compo lN)Y  
site component / cable of / currently implemented for / 0.u9f`04  
demonstrated by an example / finally reached / made equal to / iB}LnC:  
equivalent to / more suitable to / oriented to / interpreted as / > G4HZE  
pointed out / potentially of great benefit in the complex task of / anz9lG G#  
shown in / used to effectively guide the search %7C%`)T]  
l makes use of *2" bG1`  
l make up J/]o WC`u  
l meets the needs of real life production,/ the current demands c >u>Pi;Z  
placed upon it wv7p,9Z[  
l must be justified 'XP>} m  
l point out z,}c?BP  
l play an important role tyn?o  
l relates to 0uVk$\:i  
l rely on r}_Lb.1]  
l satisfy the needs n!kk~65|  
l determine the total requirements for the ... E'&OOEMN-  
l uses ... as a key to search for... C;d|\[7Z  
l without relying on a%MzNH  
l will be available/ performed/ overlooked $tD CS  
NOUN PHASE <K D H  
l a basic technical function of ` x%U  
l a critical need 0\\ueMj  
l a key / principle feature of &jXca|wAR  
l a substantial impact on 9atjK4+o  
l an intensive review was conducted r3+<r<gs  
l an increasing need for expanding the application of ....  95.qAFB1  
l an important component / function / aspect / issue _" ?c9  
l each rule is numbered in sequence K;<NBnH  
l each of these involves Ax5mP8S  
l for this calculation, it is necessary to define a' IX yj  
l in the physical environment / integration of N `,7FI}  
Tm%$J  
l in the reality of situations where … Mv/IMO0rR  
l many aspects of ri/t(m^{W  
l most past efforts have been spent on ... MuDFdbtR  
l common sense to a well studied and documented technical field. @wd!&%yzO  
l sources of additional information on ... are listed h|J;6Sm@  
l systematic and rationally structured format m.1LxM$8  
l the basis on which a range of ...operations can be established is  =3h+=l[  
shown aqcFY8b '  
l THE basic philosophy / principles of / key element / general %iK%$  
hypothesis / candidate list of / concept of ... has attracted wide ]*bAF^8i  
interest / function is concerned with / heart / impact / nature / role 7[ZkM+z!  
/ task of / kernel functions +\+Uz!YS  
l the number of parts needed to 5Z* b( R  
l the above statement means that 0L!er%GM  
l the output data is passed to  5Waw?1GL  
l the proposed method / underlying principle yr FZ~r@-  
l the recommendations made in this report, if implemented, should p G)9=X!9  
l this information resides in _L$)2sl1R  
l this process is composed of ... different ... operation T&?w"T2y  
l along with the use of w@87]/4Rq  
l concerning general aspects of /)sDnJ1r  
l due to " <<A  
l for later use in generating..., "4 'kb  
l in turn, ZrFr`L5F;  
l IT IS believed / noted / assumed / suggested / shown / quite *y)4D[ z-  
evident / appears / implies that / intended for / of no important to J2r vJ2l=t  
l it can be claimed/concluded that 6_W<hevI  
l it demonstrates the decisions required of >NJjS8f5  
l it also provides information to .. Xwn3+tSIa  
l it becomes essential to F;pTXt}?5  
l let ... be the probability that ^gd<lo g  
l once... is written, it is compiled into... wHA/b.jH  
l suppose it is observed that  ~q*i;*  
l this is because `tX@8|  
Kl2}o|b   
l this results in a ' Q\@19  
l upon completion of the ... analysis, ^)|&|  
l when the knowledge is of mathematics or quantum physics, it will pQqbZ3]  
also be n;%y  
recorded in books and papers q1H~ |1  
l selection of rules for using the tools, for generating operation /CH(!\bQ  
plans, zkd3Z$Ce  
is another matter of preference, since practice varies greatly. 4e}{$s$Xx  
l for the sake of convenience K|US~Hgv  
l correct decision to be reach %Mh Q  
l keeping the number of rules to a minimum. FW_G\W.  
l a good process plan will result exhibiting several characteristics: NaF(\j  
l practical solutions wEE2a56L-  
l because of rather small job lot sizes <>]1Y$^Y  
l Backward reasoning can be used to answer the question "should #9i6+. Z  
milling tool be select" different level of knowledge in the realm of \04mLIJr9  
process planning
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沙发  发表于: 2007-11-14   
Very useful, thank u!
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