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--- nlp:unsupervised_methods [2021/03/01 12:04] – jmflanig
+++ nlp:unsupervised_methods [2023/06/15 07:36] (current) – external edit 127.0.0.1
@@ Line 2: / Line 2: @@
 ===== General Methods =====
-  * EM
+  * [[ml:EM algorithm]]
   * Density estimation, direct maximization of p(x)
   * [[https://www.aclweb.org/anthology/P05-1044.pdf|Smith & Eisner 2006 - Contrastive Estimation: Training Log-Linear Models on Unlabeled Data]]
 ===== Syntactic Parsing =====
+See also [[nlp:constituency_parsing#unsupervised constituency parsing]] and [[dependency_parsing#unsupervised dependency parsing]].
 ==== Overviews ====
+  * **Good historical overview**: [[https://www.aclweb.org/anthology/2020.tacl-1.15.pdf|Nishida 2020]] (Gives a good history of unsupervised parsing in the related work)
   * [[http://www.cs.columbia.edu/~rasooli/papers/candidacy2016.pdf|Slides from a candidacy exam]]
+  * [[https://www.aclweb.org/anthology/2020.acl-main.300.pdf|Li et al 2020 - An Empirical Comparison of Unsupervised Constituency Parsing Methods]]
+  * [[https://arxiv.org/pdf/2010.01535.pdf|Han et al 2020 - A Survey of Unsupervised Dependency Parsing]]
 ==== Papers ====
@@ Line 21: / Line 25: @@
 ==== Grammar Learning ====
   * [[https://arxiv.org/pdf/2010.01160.pdf|Chaudhary et al 2020 - Automatic Extraction of Rules Governing Morphological Agreement]]
+==== Image or Video-Aided ====
+    * [[https://arxiv.org/pdf/2104.04369.pdf|Zhang et al 2021 - Video-aided Unsupervised Grammar Induction]] (Best paper at NAACL 2021)
 ===== Morphological Analysis =====
+See also [[nlp:morphological_analysis#Unsupervised Analysers|unsupervised morphological analysers]].
 ===== POS Induction =====
+  * [[https://aclanthology.org/D07-1031.pdf|Johnson 2007 - Why doesn’t EM find good HMM POS-taggers?]]
+  * [[https://aclanthology.org/P09-1057.pdf|Ravi & Knight 2009 - Minimized Models for Unsupervised Part-of-Speech Tagging]]
+  * [[https://aclanthology.org/D10-1056.pdf|Christodoulopoulos et al 2010 - Two Decades of Unsupervised POS induction: How far have we come?]]
   * [[https://arxiv.org/pdf/2010.12784.pdf|Gupta et al 2020 - Clustering Contextualized Representations of Text for Unsupervised Syntax Induction]]
+===== Semantic Parsing =====
+  * [[https://aclanthology.org/D09-1001.pdf|Poon & Domingos 2009 - Unsupervised Semantic Parsing]]
+===== Information Extraction =====
+  * Event Extraction
+    * [[https://aclanthology.org/P11-1098.pdf|Chambers & Jurafsky 2011 - Template-Based Information Extraction without the Templates]]
+===== Discourse Parsing =====
+See also [[nlp:discourse_analysis#unsupervised discourse parsing]].
 ===== Other Unsupervised Tasks =====
+  * [[question_answering#Unsupervised QA|Unsupervised Question Answering]]
+  * [[nlp:machine_translation#unsupervised|Unsupervised Machine Translation]]
+=== Miscellaneous Papers ===
   * [[https://www.aclweb.org/anthology/P08-1090.pdf|Chambers & Jurafsky 2008 - Unsupervised Learning of Narrative Event Chains]]
+===== Related Pages =====
+  * [[ml:EM Algorithm]]
+  * [[nlp:constituency_parsing#Unsupervised Constituency Parsing]]
+  * [[dependency_parsing#Unsupervised Dependency Parsing]]
+  * [[nlp:discourse_analysis#Unsupervised Discourse Parsing]]