nlp

1. 01_Week_1_-_Course_Introduction/01_Course_Introduction_14-11.mp412.26MB
2. 02_Week_1_-_Basic_Text_Processing/01_Regular_Expressions_11-25.mp410.85MB
3. 02_Week_1_-_Basic_Text_Processing/02_Regular_Expressions_in_Practical_NLP_6-04.mp47.96MB
4. 02_Week_1_-_Basic_Text_Processing/03_Word_Tokenization_14-26.mp412.47MB
5. 02_Week_1_-_Basic_Text_Processing/04_Word_Normalization_and_Stemming_11-47.mp410.08MB
6. 02_Week_1_-_Basic_Text_Processing/05_Sentence_Segmentation_5-31.mp44.97MB
7. 03_Week_1_-_Edit_Distance/01_Defining_Minimum_Edit_Distance_7-04.mp46.6MB
8. 03_Week_1_-_Edit_Distance/02_Computing_Minimum_Edit_Distance_5-54.mp45.38MB
9. 03_Week_1_-_Edit_Distance/03_Backtrace_for_Computing_Alignments_5-55.mp45.53MB
10. 03_Week_1_-_Edit_Distance/04_Weighted_Minimum_Edit_Distance_2-47.mp42.83MB
11. 03_Week_1_-_Edit_Distance/05_Minimum_Edit_Distance_in_Computational_Biology_9-29.mp48.95MB
12. 04_Week_2_-_Language_Modeling/01_Introduction_to_N-grams_8-41.mp47.64MB
13. 04_Week_2_-_Language_Modeling/02_Estimating_N-gram_Probabilities_9-38.mp49.48MB
14. 04_Week_2_-_Language_Modeling/03_Evaluation_and_Perplexity_11-09.mp49.6MB
15. 04_Week_2_-_Language_Modeling/04_Generalization_and_Zeros_5-15.mp44.67MB
16. 04_Week_2_-_Language_Modeling/05_Smoothing-_Add-One_6-30.mp46.04MB
17. 04_Week_2_-_Language_Modeling/06_Interpolation_10-25.mp49.38MB
18. 04_Week_2_-_Language_Modeling/07_Good-Turing_Smoothing_15-35.mp413.44MB
19. 04_Week_2_-_Language_Modeling/08_Kneser-Ney_Smoothing_8-59.mp48.44MB
20. 05_Week_2_-_Spelling_Correction/01_The_Spelling_Correction_Task_5-39.mp44.84MB
21. 05_Week_2_-_Spelling_Correction/02_The_Noisy_Channel_Model_of_Spelling_19-30.mp417.79MB
22. 05_Week_2_-_Spelling_Correction/03_Real-Word_Spelling_Correction_9-19.mp48.56MB
23. 05_Week_2_-_Spelling_Correction/04_State_of_the_Art_Systems_7-10.mp46.61MB
24. 06_Week_3_-_Text_Classification/01_What_is_Text_Classification_8-12.mp47.7MB
25. 06_Week_3_-_Text_Classification/02_Naive_Bayes_3-19.mp43.25MB
26. 06_Week_3_-_Text_Classification/03_Formalizing_the_Naive_Bayes_Classifier_9-28.mp48.19MB
27. 06_Week_3_-_Text_Classification/04_Naive_Bayes-_Learning_5-22.mp46.18MB
28. 06_Week_3_-_Text_Classification/05_Naive_Bayes-_Relationship_to_Language_Modeling_4-35.mp44.09MB
29. 06_Week_3_-_Text_Classification/06_Multinomial_Naive_Bayes-_A_Worked_Example_8-58.mp411.38MB
30. 06_Week_3_-_Text_Classification/07_Precision_Recall_and_the_F_measure_16-16.mp415.72MB
31. 06_Week_3_-_Text_Classification/08_Text_Classification-_Evaluation_7-17.mp411.54MB
32. 06_Week_3_-_Text_Classification/09_Practical_Issues_in_Text_Classification_5-56.mp46.56MB
33. 07_Week_3_-_Sentiment_Analysis/01_What_is_Sentiment_Analysis_7-17.mp49.56MB
34. 07_Week_3_-_Sentiment_Analysis/02_Sentiment_Analysis-_A_baseline_algorithm_13-27.mp413.18MB
35. 07_Week_3_-_Sentiment_Analysis/03_Sentiment_Lexicons_8-37.mp410.58MB
36. 07_Week_3_-_Sentiment_Analysis/04_Learning_Sentiment_Lexicons_14-45.mp418.65MB
37. 07_Week_3_-_Sentiment_Analysis/05_Other_Sentiment_Tasks_11-01.mp414.53MB
38. 08_Week_4_-_Discriminative_classifiers-_Maximum_Entropy_classifiers/01_Generative_vs._Discriminative_Models_7-49.mp47.92MB
39. 08_Week_4_-_Discriminative_classifiers-_Maximum_Entropy_classifiers/02_Making_features_from_text_for_discriminative_NLP_models_18-11.mp416.66MB
40. 08_Week_4_-_Discriminative_classifiers-_Maximum_Entropy_classifiers/03_Feature-Based_Linear_Classifiers_13-34.mp413.46MB
41. 08_Week_4_-_Discriminative_classifiers-_Maximum_Entropy_classifiers/04_Building_a_Maxent_Model-_The_Nuts_and_Bolts_8-04.mp47.8MB
42. 08_Week_4_-_Discriminative_classifiers-_Maximum_Entropy_classifiers/05_Generative_vs._Discriminative_models-_The_problem_of_overcounting_evidence_12-15.mp412.22MB
43. 08_Week_4_-_Discriminative_classifiers-_Maximum_Entropy_classifiers/06_Maximizing_the_Likelihood_10-29.mp49.83MB
44. 09_Week_4_-_Named_entity_recognition_and_Maximum_Entropy_Sequence_Models/01_Introduction_to_Information_Extraction_9-18.mp49.39MB
45. 09_Week_4_-_Named_entity_recognition_and_Maximum_Entropy_Sequence_Models/02_Evaluation_of_Named_Entity_Recognition_6-34.mp46.75MB
46. 09_Week_4_-_Named_entity_recognition_and_Maximum_Entropy_Sequence_Models/03_Sequence_Models_for_Named_Entity_Recognition_15-05.mp414.15MB
47. 09_Week_4_-_Named_entity_recognition_and_Maximum_Entropy_Sequence_Models/04_Maximum_Entropy_Sequence_Models_13-01.mp413.3MB
48. 10_Week_4_-_Relation_Extraction/01_What_is_Relation_Extraction_9-47.mp410.19MB
49. 10_Week_4_-_Relation_Extraction/02_Using_Patterns_to_Extract_Relations_6-17.mp46.08MB
50. 10_Week_4_-_Relation_Extraction/03_Supervised_Relation_Extraction_10-51.mp410.31MB
51. 10_Week_4_-_Relation_Extraction/04_Semi-Supervised_and_Unsupervised_Relation_Extraction_9-53.mp410.06MB
52. 11_Week_5_-_Advanced_Maximum_Entropy_Models/01_The_Maximum_Entropy_Model_Presentation_12-14.mp417.28MB
53. 11_Week_5_-_Advanced_Maximum_Entropy_Models/02_Feature_Overlap-Feature_Interaction_12-51.mp412.63MB
54. 11_Week_5_-_Advanced_Maximum_Entropy_Models/03_Conditional_Maxent_Models_for_Classification_4-11.mp44.79MB
55. 11_Week_5_-_Advanced_Maximum_Entropy_Models/04_Smoothing-Regularization-Priors_for_Maxent_Models_29-24.mp428.8MB
56. 12_Week_5_-_POS_Tagging/01_An_Intro_to_Parts_of_Speech_and_POS_Tagging_13-19.mp411.88MB
57. 12_Week_5_-_POS_Tagging/02_Some_Methods_and_Results_on_Sequence_Models_for_POS_Tagging_13-04.mp412.82MB
58. 13_Week_5_-_Parsing_Introduction/01_Syntactic_Structure-_Constituency_vs_Dependency_8-46.mp48.96MB
59. 13_Week_5_-_Parsing_Introduction/02_Empirical-Data-Driven_Approach_to_Parsing_7-11.mp47.24MB
60. 13_Week_5_-_Parsing_Introduction/03_The_Exponential_Problem_in_Parsing_14-30.mp414.87MB
61. 14_Week_5_-_Instructor_Chat/01_Instructor_Chat_9-02.mp423.78MB
62. 15_Week_6_-_Probabilistic_Parsing/01_CFGs_and_PCFGs_15-29.mp416.65MB
63. 15_Week_6_-_Probabilistic_Parsing/02_Grammar_Transforms_12-05.mp412.05MB
64. 15_Week_6_-_Probabilistic_Parsing/03_CKY_Parsing_23-25.mp426.18MB
65. 15_Week_6_-_Probabilistic_Parsing/04_CKY_Example_21-52.mp423.44MB
66. 15_Week_6_-_Probabilistic_Parsing/05_Constituency_Parser_Evaluation_9-45.mp410.66MB
67. 16_Week_6_-_Lexicalized_Parsing/01_Lexicalization_of_PCFGs_7-03.mp47.12MB
68. 16_Week_6_-_Lexicalized_Parsing/02_Charniaks_Model_18-23.mp418.96MB
69. 16_Week_6_-_Lexicalized_Parsing/03_PCFG_Independence_Assumptions_9-44.mp49.83MB
70. 16_Week_6_-_Lexicalized_Parsing/04_The_Return_of_Unlexicalized_PCFGs_20-53.mp421.22MB
71. 16_Week_6_-_Lexicalized_Parsing/05_Latent_Variable_PCFGs_12-07.mp412.55MB
72. 17_Week_6_-_Dependency_Parsing_Optional/01_Dependency_Parsing_Introduction_10-25.mp411.15MB
73. 17_Week_6_-_Dependency_Parsing_Optional/02_Greedy_Transition-Based_Parsing_31-05.mp431.36MB
74. 17_Week_6_-_Dependency_Parsing_Optional/03_Dependencies_Encode_Relational_Structure_7-20.mp47.24MB
75. 18_Week_7_-_Information_Retrieval/01_Introduction_to_Information_Retrieval_9-16.mp49.06MB
76. 18_Week_7_-_Information_Retrieval/02_Term-Document_Incidence_Matrices_8-59.mp49.02MB
77. 18_Week_7_-_Information_Retrieval/03_The_Inverted_Index_10-42.mp410.71MB
78. 18_Week_7_-_Information_Retrieval/04_Query_Processing_with_the_Inverted_Index_6-43.mp46.74MB
79. 18_Week_7_-_Information_Retrieval/05_Phrase_Queries_and_Positional_Indexes_19-45.mp420.6MB
80. 19_Week_7_-_Ranked_Information_Retrieval/01_Introducing_Ranked_Retrieval_4-27.mp44.58MB
81. 19_Week_7_-_Ranked_Information_Retrieval/02_Scoring_with_the_Jaccard_Coefficient_5-06.mp45.39MB
82. 19_Week_7_-_Ranked_Information_Retrieval/03_Term_Frequency_Weighting_5-59.mp46.36MB
83. 19_Week_7_-_Ranked_Information_Retrieval/04_Inverse_Document_Frequency_Weighting_10-16.mp411.12MB
84. 19_Week_7_-_Ranked_Information_Retrieval/05_TF-IDF_Weighting_3-42.mp44.1MB
85. 19_Week_7_-_Ranked_Information_Retrieval/06_The_Vector_Space_Model_16-22.mp416.93MB
86. 19_Week_7_-_Ranked_Information_Retrieval/07_Calculating_TF-IDF_Cosine_Scores_12-47.mp413.23MB
87. 19_Week_7_-_Ranked_Information_Retrieval/08_Evaluating_Search_Engines_9-02.mp48.82MB
88. 20_Week_8_-_Semantics/01_Word_Senses_and_Word_Relations_11-50.mp414.89MB
89. 20_Week_8_-_Semantics/02_WordNet_and_Other_Online_Thesauri_6-23.mp48.75MB
90. 20_Week_8_-_Semantics/03_Word_Similarity_and_Thesaurus_Methods_16-17.mp420.24MB
91. 20_Week_8_-_Semantics/04_Word_Similarity-_Distributional_Similarity_I_13-14.mp415.03MB
92. 20_Week_8_-_Semantics/05_Word_Similarity-_Distributional_Similarity_II_8-15.mp49.46MB
93. 21_Week_8_-_Question_Answering/01_What_is_Question_Answering_7-28.mp48.89MB
94. 21_Week_8_-_Question_Answering/02_Answer_Types_and_Query_Formulation_8-47.mp410.12MB
95. 21_Week_8_-_Question_Answering/03_Passage_Retrieval_and_Answer_Extraction_6-38.mp47.68MB
96. 21_Week_8_-_Question_Answering/04_Using_Knowledge_in_QA_4-25.mp45.27MB
97. 21_Week_8_-_Question_Answering/05_Advanced-_Answering_Complex_Questions_4-52.mp46.17MB
98. 22_Week_8_-_Summarization/01_Introduction_to_Summarization.mp46.02MB
99. 22_Week_8_-_Summarization/02_Generating_Snippets.mp49.61MB
100. 22_Week_8_-_Summarization/03_Evaluating_Summaries-_ROUGE.mp46.53MB
101. 22_Week_8_-_Summarization/04_Summarizing_Multiple_Documents.mp413.4MB
102. 23_Week_8_-_Instructor_Chat_II/01_Instructor_Chat_II_5-23.mp418.63MB