英语论文写作常用经典句型 h(aF>a\Z
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Beginning 2"
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1. In this paper, we focus on the need for ^:Vwblv(
2. This paper proceeds as follow. o,a3J: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$sO/.
Introduction I13nmI\
1. This will be followed by a description of the fuzzy nature of the RFyeA.
N
problem and a detailed presentation of how the required j'lfH6_')e
membership functions are defined. {3Z&C$: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. !$ikH,Bh
Review ~fLuys`*:
1. This review is followed by an introduction. gf6<`+/
2. A brief summary of some of the relevant concepts in xxx and xxx is =>".
presented in Section 2. yP\KIm!
3. In the next section, a brief review of the .... is given. <_&H<]t%rI
4. In the next section, a short review of ... is given with special regard Y4,~s64e
to ... F Vkb9(WW
5. Section 2 reviews relevant research related to xx. ) &[S*g
6. Section 1.1 briefly surveys the motivation for a methodology of -E1b5i;f
action, while 1.2 looks at the difficulties posed by the complexity of OgjSyzc
systems and outlines the need for development of possibility Sw~jyUEr
methods. [>xwwm
Body !gv/ jdF
1. Section 1 defines the notion of robustness, and argues for its >pjmVlw?
1au1DvH
importance. I,
9,%S}
15. Section 4 gives a specific example of xxx. Am=D kkP%
16. Section 4 is the experimental study to make a fuzzy model of 5m2(7FC%su
memory process. k{>rI2;
17. Section 4 contains a discussion of the implication of the results of v#u]cmI
Section 2 and 3. z-(@j;.
18. Section 4 applies this fuzzy measure to the analysis of xx and x
8lgDO
illustrate its use on experimental data. ]Cd1&
19. Section 5 presents the primary results of the paper: a fuzzy set 1Y iUf
model .. Pk444_"=
Qd"{2>
20. Section 5 contains some conclusions plus some ideas for further [OJ@{{U%
work. ;EstUs3
21. Section 6 illustrates the model with an example. l/[0N@r~
22. Various ways of justification and the reasons for their choice are %m[
:},
discussed very briefly in Section 2. _urv
We
23. In Section 2 are presented the block diagram expression of a a x1
whole model iyNyj44
H
of human DM system s>`$]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. .boBb<
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 \nuzl
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
$T%
Chapter 1. Introduction ,-k?"|tQ
Time jVGAgR=[G
1. Over the course of the past 30 years, .. has emerged form intuitive a Iyzt
2. Technological revolutions have recently hit the industrial world )>Z
@')Uk:
3. The advent of ... systems for has had a significant impact on the yHs9J1Sf
4. The development of ... is explored x#5[i;-c
5. During the past decade, the theory of fuzzy sets has developed in a ('BB9#\t
variety of directions F2Ny=H&G
6.The concept of xx was investigated quite intensively in recent years q%f90
7. There has been a turning point in ... methodology in accordance !{(crfXB
with the advent of ... Pd d(1K*
8. A major concern in ... today is to continue to improve... YbWz!.WPe
9. A xx is a latecomer in the part representation arena. j1+I_
V8o,
e
10. At the time of this writing, there is still no standard way of xx J &=5h
.G$
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 :AuK Q`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}pNsQ
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 [] VygiR|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_m yE
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?cn5
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. 6WN1DW
10. Hamper effort toward a xx system Y~|C]O
11. In order to overcome the limitations due to incomplete and sC/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 $#
1. A xx system comprises three main components: we6kV-L.
2. Must decompose the original .. into a set of .. 24ojjxz+
3. Consists of the following steps: ~0mO<0~
4. This is summarized in the following steps: 7pB5o2CD0
P'.M.I@
5. Can be broadly classified into the following areas: !"*!du28jo
6. Can be characterized by its function of effectively processing the &WSxg&YG)\
7. Can allow further breadth of application of ...into more CNC3">Dk~9
8. The following steps should be followed 'A0.(a5
9. xx can be classified by a different ways. I~LN)hqd o
10. Based on the xx, one may classify xx into the following: #cG7h(
!
11. This catalog may change due to wear, breakage, and purchasing. OnNWci|7
System "62vwWrwO
1. Unlike many conventional program, expert systems do not p0 @,-
usually deal with problem for which there is clearly a right or wrong o,| LO$~
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 &`#k1t'
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<