Artificial intelligence a new synthesis

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作   者:(美)[N.J.尼尔森]Nils J.Nilsson著

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ISBN:9787111074380

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简介

《人工智能英文版》介绍了人工智能领域中最重要的一个概念——智能代理。《人工智能英文版》从最基本的反应式代理入手,逐步向人们展示了现代人工智能不断增强的认知能力,同时也例证了该领域中重要且经久不衰的思维、思想。神经网络、遗传程序设计、计算机视觉、探视搜索、知识表示和推理、贝叶斯网络、规划和语言理解等有关人工智能的重要内容都通过《人工智能英文版》所描述的各种代理的不断增长的能力得以展现。《人工智能英文版》作者是人工智能领域的主要开创者和重要带头人,正是他提供给了广大读者一个耳目一新和富有生机的合成技术,该技术将领导人类把整个人工智能领域的研究引向一个新的境界。 Nils J. Nilsson: Artificial Intelligence, A New Synthesis. Copyright @ 1998 by Morgan Kaufmann Publishers, Inc. Harcourt Asia Pte Ltd under special arrangement with Morgan Kaufmann authorizes China Machine Press to print and exclusively distribute this edition, which is the only authorized complete and unabridged reproduction of the latest American Edition published and priced for sale in China only, not including Hong Kong SAR and Taiwan. Unauthorized export of this edition is a violation of the Copyright Act. Violation of this Law is subjected to Civil and Criminal penalties.

目录

contents

preface

introduction

1.1 what is al?

1.2 approaches to artificial intelligence

1.3 brief history of al

1.4 plan of the book

1.5 additional readings and discussion

exercises

1 reactive machines

2 stimulus-response agents

2.1 perception and action

2.1.1 perception

2.1.2 action

2.1.3 boolean algebra

2.1.4 classes and forms of boolean functions

2.2 representing and implementing action functions

2.2.1 production systems

2.2.2 networks

2.2.3 the subsumption architecture

.2.3 additional readings and discussion

exercises

neural networks

3.1 introduction

3.2 training single tlus

3.2.1 tlu geometry

3.2.2 augmented vectors

3.2.3 gradient descent methods

3.2.4 the widrow-hoff procedure

3.2.5 the generalized delta procedure

3 . 2.6 the error-correction procedure

3.3 neural networks

3.3.1 motivation

3.3.2 notation

3.3.3 the backpropagation method

3.3.4 computing weight changes in the final layer

3.3.5 computing changes to the weights in intermediate layers

3.4 generalization, accuracy, and overfitting

3.5 additional readings and discussion

exercises

4 machine evolution

4.1 evolutionary computation

4.2 genetic programming

4.2.1 program representation in gp

4.2.2 the gp process

4.2.3 evolving a wall-following robot

4.3 additional readings and discussion

exercises

5 state machines

5.1 representing the environment by feature vectors

5.2 elman networks

5.3 iconic representations

5.4 blackboard systems

5.5 additional readings and discussion

exercises

6 robot vision

6.1 introduction

6.2 steering an automobile

6.3 two stages of robot vision

6.4 image processing

6.4.1 averaging

6.4.2 edge enhancement

6.4.3 combining edge enhancement with averaging

6.4.4 region finding

6.4.5 using image attributes other than intensity

6.5 scene analysis

6.5.1 interpreting lines and curves in the image

6.5.2 model-based vision

6.6 stereo vision and depth information

6.7 additional readings and discussion

exercises

search in state spaces

7 agents that plan

7.1 memory versus computation

7.2 state-space graphs

7.3 searching explicit state spaces

7.4 feature-based state spaces

7.5 graph notation

7.6 additional readings and discussion

exercises

8 uninformed search

8.1 formulating the state space

8.2 components of implicit state-space graphs

8.3 breadth-first search

8.4 depth-first or backtracking search

8.5 iterative deepening

8.6 additional readings and discussion

exercises
9 heuristic search

9.1 using evaluation functions

9.2 a general graph-searching algorithm

9.2.1 algorithm a*

9.2.2 admissibility of a*

9.2.3 the consistency (or monotone) condition

9.2.4 iterative-deepening a*

9.2.5 recursive best-first search

9.3 heuristic functions and search efficiency

9.4 additional readings and discussion

exercises

10 planning, acting, and learning

10.1 the sense/plan/act cycle

10.2 approximate search

10.2.1 island-driven search

10.2.2 hierarchical search

10.2.3 limited-horizon search

10.2.4 cycles

10.2.5 building reactive procedures

10.3 learning heuristic functions

10.3.1 explicit graphs

10.3.2 implicit graphs

10.4 rewards instead of goals

10.5 additional readings and discussion

exercises

11 alternative search formulations and

applications

11.1 assignment problems

11.2 constructive methods

11.3 heuristic repair

11.4 function optimization

exercises

12 adversarial search

12.1 two-agent games

12.2 the minimax procedure

12.3 the alpha-beta procedure

12.4 the search efficiency of the alpha-beta procedure

12.5 other important matters

12.6 games of chance

12.7 learning evaluation functions

12.8 additional readings and discussion

exercises

iii knowledge representation and

reasoning

13 the propositional calculus

13.1 using constraints on feature values

13.2 the language

13.3 rules of inference

13.4 definition of proof

13.5 semantics

13.5.1 interpretations

13.5.2 the propositional truth table

13.5.3 satisfiability and models

13.5.4 validity

13.5.5 equivalence

13.5.6 entailment

13.6 soundness and completeness

13.7 the psat problem

13.8 other important topics

13.8.1 language distinctions

13.8.2 metatheorems

13.8.3 associative laws

13.8.4 distributive laws

exercises

14 resolution in the propositional calculus

14.1 a new rule of inference: resolution

14.1.1 clauses as wffs

14.1.2 resolution on clauses

14.1.3 soundness of resolution

14.2 converting arbitrary wffs to conjunctions of clauses

14.3 resolution refutations

14.4 resolution refutation search strategies

14.4.1 ordering strategies

14.4.2 refinement strategies

14.5 horn clauses

exercises

15 the predicate calculus

15.1 motivation

15.2 the language and its syntax

15.3 semantics

15.3.1 worlds

15.3.2 interpretations

15.3.3 models and related notions

15.3.4 knowledge

15.4 quantification

15.5 semantics of quantifiers

15.5.1 universal quantifiers

15.5.2 existential quantifiers

15.5.3 useful equivalences

15.5.4 rules of inference

15.6 predicate calculus as a language for representing knowledge

15.6.1 conceptualizations

15.6.2 examples

15.7 additional readings and discussion

exercises

16 resolution in the predicate calculus

16.1 unification

16.2 predicate-calculus resolution

16.3 completeness and soundness

16.4 converting arbitrary wffs to clause form

16.5 using resolution to prove theorems

16. 6 answer extraction

16.7 the equality predicate

16.8 additional readings and discussion

exercises

17 knowledge based systerms

17.1 confronting the real world

17.2 reasoning using horn clauses

17.3 maintenance in dynamic knowledge bases

17.4 rule-based expert systems

17.5 rule learning

17.5.1 learning propositional calculus rules

17.5.2 learning first-order logic rules

17.5.3 explanation-based generalization

17.6 additional readings and discussion

exercises

18 representing commonsense knowledge

18.1 the commonsense world

18.1.1 what is commonsense knowledge?

18.1.2 difficulties in representing commonsense knowledge

18.1.3 the importance of commonsense knowledge

18.1.4 research areas

18.2 time

18.3knowledge representation by networks

18.3.1 taxonomic knowledge

18.3.2 semantic networks

18.3.3 nonmonotonic reasoning in semantic networks

18.3.4 frames

18.4 additional readings and discussion

exercises

19 reasoning with uncertain information

19.1 review of probability theory

19.1.1 fundamental ideas

19.1.2 conditional probabilities

19.2 probabilistic inference

19.2.1 a general method

19.2.2 conditional independence

19.3 bayes networks

19.4 patterns of inference in bayes networks

19.5 uncertain evidence

19.6 d-separation

19.7probabilistic inference in polytrees

19.7.1 evidence above

19.7.2 evidence below

19.7.3 evidence above and below

19.7.4 a numerical example

19.8 additional readings and discussion

exercises

20 learning and acting with bayes nets
20.1 learning bayes nets

20.1.1 known network structure

20.1.2 learning network structure

20.2 probabilistic inference and action

20.2.1 the general setting

20.2.2 an extended example

20.2.3 generalizing the example

20.3 additional readings and discussion

exercises

iv planning methods based on

logic

21 the situation calculus

21.1 reasoning about states and actions

21.2 some difficulties

21.2.1 frame axioms

21.2.2 qualifications

21.2.3 ramifications

21.3 generating plans

21.4 additional readings and discussion

exercises

22 planning

22.1 strips planning systems

22.1.1 describing states and goals

22.1.2 fomward search methods

22.1.3 recursive strips

22.1.4 plans with run-time conditionals

22.1.5 the sussman anomaly

22.1.6 backward search methods

22.2 plan spaces and partial-order planning

22.3 hierarchical planning

22.3.1 abstrips

22.3.2 combining hierarchical and partial-order 22 planning

22.4 learning plans

22.5 additional readings and discussion

exercises

v communication and integration

2.3 multiple agents

23.1 interacting agents

23.2 models of other agents

23.2.1 varieties of models

23.2.2 simulation strategies

23.2.3 simulated databases

23.2.4 the intentional stance

23.3 a modal logic of knowledge

23.3.1 modal operators

23.3.2 knowledge axioms

23.3.3 reasoning about other agents’ knowledge

23.3.4 predicting actions of other agents

23.4 additional readings and discussion

exercises

24 communication among agents

24.1 speech acts

24.1.1 planning speech acts

24.1.2 implementing speech acts

24.2 understanding language strings

24.2.1 phrase-structure grammars

24.2.2 semantic analysis

24.2.3 expanding the grammar

24.3 efficient communication

24.3.1 use of context

24.3.2 use of knowledge to resolve ambiguities

24.4 natural language processing

24.5 additional readings and discussion

exercises

25 agent architectures

25.1 three-level architectures

25.2 goal arbitration

25.3 the triple-tower architecture

25.4 bootstrapping

25.5 additional readings and discussion

exercises

bibliography

index



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