Concept extraction from student essays, towards concept map mining

J Villalon, RA Calvo - 2009 Ninth IEEE International …, 2009 - ieeexplore.ieee.org
This paper presents a new approach for automatic concept extraction, using grammatical
parsers and Latent Semantic Analysis. The methodology is described, also the tool used to …

A simple algorithm for approximating the text-to-pattern hamming distance

T Kopelowitz, E Porat - 1st Symposium on Simplicity in Algorithms …, 2018 - drops.dagstuhl.de
The algorithmic task of computing the Hamming distance between a given pattern of length
m and each location in a text of length n, both over a general alphabet\Sigma, is one of the …

[HTML][HTML] Property matching and weighted matching

A Amir, E Chencinski, C Iliopoulos, T Kopelowitz… - Theoretical Computer …, 2008 - Elsevier
In many pattern matching applications the text has some properties attached to its various
parts. Pattern Matching with Properties (Property Matching, for short), involves a string …

Approximate Matching in the L 1 Metric

A Amir, O Lipsky, E Porat, J Umanski - … CPM 2005, Jeju Island, Korea, June …, 2005 - Springer
Approximate matching is one of the fundamental problems in pattern matching, and a
ubiquitous problem in real applications. The Hamming distance is a simple and well studied …

Approximate periodicity

A Amir, E Eisenberg, A Levy - … , ISAAC 2010, Jeju Island, Korea, December …, 2010 - Springer
We consider the question of finding an approximate period in a given string S of length n. Let
S′ be a periodic string closest to S under some distance metric. We consider this distance …

Breaking the variance: Approximating the Hamming distance in 1/ε time per alignment

T Kopelowitz, E Porat - 2015 IEEE 56th Annual Symposium on …, 2015 - ieeexplore.ieee.org
The algorithmic tasks of computing the Hamming distance between a given pattern of length
m and each location in a text of length n is one of the most fundamental algorithmic tasks in …

Fully incremental LCS computation

Y Ishida, S Inenaga, A Shinohara, M Takeda - … of Computation Theory …, 2005 - Springer
Sequence comparison is a fundamental task in pattern matching. Its applications include file
comparison, spelling correction, information retrieval, and computing (dis) similarities …

Property matching and weighted matching

A Amir, E Chencinski, C Iliopoulos, T Kopelowitz… - … Pattern Matching: 17th …, 2006 - Springer
Abstract Pattern Matching with Properties (Property Matching, for short), involves a string
matching between the pattern and the text, and the requirement that the text part satisfies …

String matching with up to k swaps and mismatches

O Lipsky, B Porat, E Porat, BR Shalom… - Information and …, 2010 - Elsevier
Finding the similarity between two sequences is a major problem in computer science. It is
motivated by many issues from computational biology as well as from information retrieval …

The approximate swap and mismatch edit distance

Y Dombb, O Lipsky, B Porat, E Porat, A Tsur - Theoretical Computer …, 2010 - Elsevier
There is no known algorithm that solves the general case of the approximate edit distance
problem, where the edit operations are insertion, deletion, mismatch, and swap, in time o …