Tuesday 12 November 2013

Phd Meeting - What've I Done So Far..

Compiled a ppt presentation (Models for Query Matching using Lattice Mining Techniques) with links to what i've done so far :

1)  FCA tools and example
2) FCA & Automatic Grading
3) IslamGrid (Questions & Answers) - An Experiment
4) Lattice Mining & Graph Theory (proof of concept based on Bae et al's method)
5) Lattice Mining & FCA  (a proposed method using Graph Theory & FCA)

Still to explore :
1)  How to compare two graphs/lattices using Matlab
2)  Need to find supports from literature regarding the proposed method in 5)

To do :  Write an extended abstract regarding 4)

Sunday 27 October 2013

PhD Meeting - Updates

Done with FTA (actually i'm not done yet but still have to figure out the significance of FTA (hopefully there is!) to my current research.  I still believe that it lies somewhere around the significance/importance of a node to the similarity/distance measure in lattices  (how I wish... i pray hard for it anyway..)

Discussion :  Focusing on the paper by Bae et. al (2007)

Among the ideas/suggestions were :

1)  Lattice Mining - similar concept to Data/Text/Process Mining except that the information is in the form of lattices

2) Lattice Mining vs. Lattice Warehouse  :
i)  How to extract information from lattice  -  use Graph Theory, ie. Adjacency Matrix to represent the data

ii) Example of a scenario - How to mine similar lattices?
Possible solution :  Compare two lattices (use the Distance Measure  method proposed by Bae et. al)




Tuesday 8 October 2013

PhD Meeting - Updates

Discussion on Fault Tree Analysis (FTA) :
1)   How to obtain Minimal Cut Set equation from a FTA diagram
2)  How to calculate the criticality of each node

Questions :
1)  How to link/any relationship between FTA & lattice theory?
2)  WHAT'S NEXT?  (I think it has something to do with similarity, or distance between the nodes)

Came across this paper - Development of Distance Measures for Process Mining, Discovery, and Integration by Bae, et.al (2007).

Anything interesting?

Suggested direction  -  look into graph theory & how to mine information from lattice

Idea :  Lattice Mining via Graph Theory

Tuesday 27 August 2013

Summary of today's discussion - 27th August 2013, UMT Library , 11 am


1.   3 areas to consider based on the idea of Fault Tree Analysis (FTA) : 
   i.  FTA diagram = FCA lattice

   ii. Corresponding table (based on the FTA diagram) to calculate the criticality  of a node = a table that represents the relationship / dependency among nodes in FCA lattices

  iii. Importance Measure = probability / relevance of each node in the lattice structure (possibility of linking  to degree of similarity among FCA nodes)


2.  Other points to consider :
    i.  Graph Theory -  Convert FCA lattice into its corresponding matrices, then produce 1.ii

   ii.  Get to know PetriNet (input, output & possible use in this study)
Question : How to model FCA  lattices using PetriNet


3.  Writing  (Idea : Formalization of FCA Lattice Using Graph Theory)
Keywords :
   i.   FCA
   ii.   IR
  iii.   Graph Theory