5 citations · 14 across the 9 of their papers we have counts for
9 papers
Min-Max-Jump distance and its applications
Gangli Liu
We explore three applications of Min-Max-Jump distance (MMJ distance). MMJ-based K-means revises K-means with MMJ distance. MMJ-based Silhouette coefficient revises Silhouette coef…
A New Index for Clustering Evaluation Based on Density Estimation
Gangli Liu
A new index for internal evaluation of clustering is introduced. The index is defined as a mixture of two sub-indices. The first sub-index is called the Ambiguous Index; th…
Topic Model Supervised by Understanding Map
Gangli Liu
Inspired by the notion of Center of Mass in physics, an extension called Semantic Center of Mass (SCOM) is proposed, and used to discover the abstract "topic" of a document. The no…
Understanding Graph and Understanding Map and their Potential Applications
Gangli Liu
Based on the previously proposed concept Understanding Tree, this paper introduces two concepts: Understanding Graph and Understanding Map, and explores their potential application…
Understanding tree: a tool for estimating one's understanding of conceptual knowledge
Gangli Liu
People learn whenever and wherever possible, and whatever they like or encounter--Mathematics, Drama, Art, Languages, Physics, Philosophy, and so on. With the bursting of knowledge…
Understanding Tree: a tool to estimate one's understanding of knowledge
Gangli Liu
People learn whenever and wherever possible, and whatever they like or encounter--Mathematics, Drama, Art, Languages, Physics, Philosophy, and so on. With the bursting of knowledge…
Knowledge model: a method to evaluate an individual's knowledge quantitatively
Gangli Liu
As the quantity of human knowledge increasing rapidly, it is harder and harder to evaluate a knowledge worker's knowledge quantitatively. There are lots of demands for evaluating a…
A Ranking Algorithm for Re-finding
Gangli Liu
Re-finding files from a personal computer is a frequent demand to users. When encountered a difficult re-finding task, people may not recall the attributes used by conventional re-…
A Method to Support Difficult Re-finding Tasks
Gangli Liu, Ling Feng
Re-finding electronic documents from a personal computer is a frequent demand to users. In a simple re-finding task, people can use many methods to retrieve a document, such as nav…