COMP / ELEC / STAT 602
Fall 2021


Schedule

Class topics, titles of handouts and assignments will be listed in a timely manner in the table below. Most materials will be posted in Canvas under Files, or in the NML602-papers class directory <\a>. Should you have trouble getting a copy please notify me.

Key to notation:
SPvis-x = set #x of Student Presenter's visuals (SP replaced by student's initials). These may be made available later in Canvas.

Date

Topic

Lecture Notes
Handouts

Homework/Reading/Experiment Assignment
Turn in HW before by the time set in Canvas, on due date
unless otherwise indicated.
Reading or Experiment assignment must be completed
by the indicated deadline.

Optional Reading

Aug 24

Class canceled by Rice University

Aug 26

Orientation, Introduction, Motivations

NML-II-intro.h.ppt.part1.pdf

Reading: Kohonen Ch3; and Kohonen, IEEE 2013 due Aug 31
Refresh Competitive Learning from COMP / ELEC / STAT 502
Refresh SOM exercises from COMP / ELEC / STAT 502

Haykin Ch9.1-9.6

Aug 31
Introduction, prototype-based learning (EM) Discussion of course topics and assignments;
NML-II-intro.h.ppt.pdf Reading assignment for Sep 7, Sep 9 include: Ultsch&Siemon, 1990; Cottrell&deBodt,
1995; Kraaijveld et al., 1995

Details of individual reading and paper presentation assignments: R&P_assignments-01
Haykin Ch9.1-9.6
Sep 2 Review of the basic SOM, and visualization schemes

Review of approach to manifold learning with neural maps, EM
NML-II-intro.h.ppt.pdf

Refresh Competitive Learning from COMP / ELEC / STAT 502
Refresh SOM exercises from COMP / ELEC / STAT 502
Haykin Ch9.1-9.6
Sep 7 SOM visualizations: student presentations

Haykin Ch9.1-9.6
Sep 9 SOM visualizations: student presentations

Reading assignment for class on Sep 14: Martinetz and Schulten, 1994
no student presentations from this paper
Haykin Ch9.1-9.6
Sep 14 Class cancelled by Rice U for hurricane Nicholas

Haykin Ch9.1-9.6
Sep 16 Introduction to Topology Representing Networks (EM) TRN.h.ppt.pdf Reading assignment for Sep 21: Tasdemir and Merenyi, IEEE TNN 2009 "CONN paper".
No student presentations from this paper.
Haykin Ch9.1-9.6
Sep 21 Introduction to Topology Representing Networks, wrap-up (EM)
CONN and CONNvis (EM)
CONNandCONNvis.ppt.pdf

Experiment assignment: Experiment-01-SOMvis due Sep 28
Sep 23 CONN and CONNvis cont'd (EM) CONNandCONNvis.ppt.pdf

Reading assignment for All for classes on Oct 5, Oct 7, Oct 1, no reviews:
Bauer and Pawelzik 1992 (Topographic Product); Villmann et al. 1997 (Topographic Function); Zhang and Merényi (Weighted Differential Topographic Function), 2006
deBodt, Cottrell, Verleysen, 2002 (STAB) or Hamel, WSOM 2016;
Paper presentation assignments: R&P_assignments-02
Sep 28 Presentation and discussion of SOM visualization experiments Experiment assignment: Experiment-01-SOMvis due Sep 28
Sep 30 TBD
Oct 5 Introduction to NeuroScope Handouts: Instructions, basic operations

Oct 7 Assigned student presentations on topology preservation measures and other SOM quality measures. (Two talks, and discussion, as schdeuled in
Paper presentation assignments R&P_assignments-02.)
Sample scripts / tutorials for SOM learning / recall
Sample scripts for computing topology preservation measures
Assignment: Experiment-02 (topology measures) due Oct 19
Oct 12 NO CLASS (Fall recess)
Oct 14 Assigned student presentations on topology preservation measures and other SOM quality measures, cont'd. (as scheduled in
Paper presentation assignments R&P_assignments-02.)
Variants of SOMs / neural maps: introduction and CSOM (EM)
Conscious-SOM.ppt.pdf
Oct 19 Student presentation of Experiment-02 results.
Practical items; data and case studies (EM)
Sample scripts /tutorial for SOM learning / recall
Sample scripts for computing topology preservation measures
Oct 21 Student presentation of Experiment-02 results, wrap-up.
Cluster capture from SOM; Practical items
Paper reading and presentation assignments R&P_assignments-03 for class on Oct 28.
Oct 26 Overview of clustering methods (as unsupervised learning); cluster capture from SOMs / neural maps; case studies on complex data; comparison of embeddings (EM) Experiment-03 assignment due Nov 2: Compare KSOM, CSOM, and K-means clusterings on data sets suggested in Experiment-03. Show side-by-side comparisons from the three methods.
Results to be discussed in class on Nov 2, 15 minutes, 5-6 slides per student.
Oct 28 Clustering algorithms:
Student presentations of clustering algorithms as per R&P_assignments-03.
Paper reading and presentation assignments R&P_assignments-04 for Nov 4. Topic: Clustering the SOM, Cluster Validity Indices.
Nov 2 Student presentations of Experiment-03
Clustering of the SOM; Cluster Validity Indices - intro/discussion by EM
Paper presentation assignments: R&P_assignments-05 for classes on Nov 11 and 16.
Topic: Variants of SOMs
Nov 4 Assigned student presentations of Cluster Validity Indices, as scheduled in R&P_assignments-04.
Nov 9 Cluster Validity Indices: Assigned student presentations of Cluster Validity Indices, as scheduled in Experiment-04 Cluster Validity Indices.
Clustering, quality measures, wrap-up. Case studies. (EM)
DMML-2018-Lecture.pdf
Nov 11 Variants of SOMs part 1: Assigned student presentations as scheduled in R&P_assignments-05.
SOM-supported supervised classification; SOM Magnification (EM)
Project discussion.
NML-II_SOM-hybrid-classification.pdf
Nov 16 Variants of SOMs part 2: Assigned student presentations as scheduled in R&P_assignments-05.
SOM Magnification (EM)
Project discussion.
NML-II_SOM-Magnification.pdf

Return to COMP / ELEC / STAT 602 home page