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source: nptelhrd 2012年7月3日
Computer - Natural Language Processing by Prof. Pushpak Bhattacharyya, Department of Computer science & Engineering, IIT Bombay. For more details on NPTEL visit http://nptel.iitm.ac.in
01 Introduction 53:19
02 Stages of NLP 52:55
03 Stages of NLP Continue... 58:06
04 Two approaches to NLP 49:31
05 Sequence Labelling and Noisy Channel 48:32
06 Noisy Channel: Argmax Based Computation 49:12
07 Argmax Based Computation 47:07
08 Noisy Channel Application to NLP 50:34
09 Brief on Probabilistic Parsing & Start of Part of Speech Tagging 48:20
10 Part of Speech Tagging 48:26
11 Part of Speech Tagging counted... 47:23
12 Part of Speech Tagging counted... & Indian Language in Focus; Morphology Analysis 45:05
13 PoS Tagging contd... , Indian Language Consideration; Accuracy Measure 45:07
14 PoS Tagging; Fundamental Principle; Why Challenging; accuracy 45:05
15 PoS Tagging; Accuracy Measurement; Word categories 47:40
16 AI and Probability; HMM 48:04
17 HMM 46:00
18 HMM, Viterbi, Forward Backward Algorithm 44:59
19 HMM, Viterbi, Forward Backward Algorithm Contd.. 44:28
20 HMM, Forward Backward Algorithms, Baum Welch Algorithm 41:41
21 HMM, Forward Backward Algorithms, Baum Welch Algorithm Contd... 47:44
22 Natural Language Processing and Informational Retrieval 46:47
23 CLIA; IR Basics 49:25
24 IR Models: Boolean Vector 48:16
25 IR Models: NLP and IR Relationship 46:26
26 NLP and IR: How NLP has used IR, Toward Latent Semantic 47:46
27 Least Square Method; Recap of PCA; Towards Latent Semantic Indexing(LSI) 41:51
28 PCA; SVD; Towards Latent Semantic Indexing(LSI) 38:54
29 Wordnet and Word Sense Disambiguation 46:40
30 Wordnet and Word Sense Disambiguation(contd...) 47:23
31 Wordnet; Metonymy and Word Sense Disambiguation 49:16
32 Word Sense Disambiguation 49:07
33 Word Sense Disambiguation; Overlap Based Method; Supervised Method 50:07
34 Word Sense Disambiguation: Supervised and Unsupervised methods 43:10
35 Word Sense Disambiguation: Semi - Supervised and Unsupervised method 46:58
36 Resource Constrained WSD; Parsing 48:21
37 Parsing 46:29
38 Parsing Algorithm 47:48
39 Parsing Ambiguous Sentences; Probabilistic Parsing 49:49
40 Probabilistic Parsing Algorithms 47:36
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