# NLP Winter School # 24 December 2007 # IIIT Hyderabad References #Lect-no. LECTURE TOPIC FILE -------------------- INTRODUCTION ------------------------------------ L01 Intro NLP - Applications and Techniques # L01 Applications - Info Extraction gen01_info_extr.sli L01 What is language analysis? L01 Part-of-speech tags L01 Morph analysis -------------------- CONTEXT FREE GRAMMER -------------------- L01 CFG: English CF Grammar rules L01 CFG: Phrase structure tree L02 CFG: Examples - Discussion L01 CFG: HA 1 (PS Trees) L01 GrmFrm: Dependency trees: Modifier-modified trees L01 GrmFrm: HA 2 (mm-trees) L02 CFG: Phrase struc trees to meaning L02 CFG: Ex. NP with PP modifier L02 CFG: Ex. NP with PP modifier L02 CFG: Ex. Adverbial modifier ----------------- SEMANTIC ANALYSIS ------------------------------- L03 Structure of actions: agent theta role L03 Karakas: karta karaka L03 Theme theta role and karma karaka L03 Other theta roles L03 Other karaka roles L03 Karaka theta roles relationship L03 Readings - Theta roles L03 HA 3 (Theta-roles karaka-roles) L03 HA 4 (mm-trees) -------------------- FEATURE STRUCTURES -------------------- L03 FS: Feature-structures L03 FS: Unification L03 FS: Annotating trees with feature-structures L03 FS: Heads and inheritance of feature-structures L03 FS: Relating trees with Shakti standard format L03 FS: Relating features with Shakti standard format # L03 FS: Feature structures with CFG fs02_cfg.sli # L03 FS: CFG & Unification: Processing fs02_proc.sli -------------------- LEXICAL SEMANTICS ------------ L15 Sub-categorization of verbs L15 Sub-cat frames or vibhakti charts L15 Vibhakti L15 HA (Verb frames) L15 Karaka charts L15 Levels of analysis L15 Selectional restrictions L15 Verb alternation L15 HA 6 (verb lexical semantics) (Due: ) # L15 HA 10 Solution (verb lexical semantics) lsem03_ha2_sol.txt L15 Readings - Subcat, Selectional Restr. -------------------- COMPUTATIONAL PANINIAN GRAMMER -------------------- L01 CPG: Postpositions & karaka mapping L01 CPG: Karaka level L01 CPG: Karaka and theta role (advanced) L01 CPG: Parsing Ex. L01 HA 1 (Karaka charts) %% L02 CPG: Complex sentence - participle 'kara' L02 CPG: Complex sentences - karaka sharing rules L02 CPG: Complex sentences - participle 'te_hue' L02 CPG: Complex sentences - parsing ex. L02 HA 2 (Constraint Graphs) L03 CPG: Complex sentences continued L03 HA 3 (Constraints -- Solution Graphs) L04 CPG: Constraint parser using integer programming %%