activity
20112023
most citedOrdered direct implicational basis of a finite closure system

35 citations · 85 across the 9 of their papers we have counts for

collaborators

10 papers

cs.IT2023

The Tight Upper Bound for the Size of Single Deletion Error Correcting Codes in Dimension 11

Kazuhisa Nakasho, Manabu Hagiwara, Austin Anderson +1

A single deletion error correcting code (SDECC) is a set of fixed-length sequences consisting of two types of symbols, 0 and 1, such that the original sequence can be recovered for…

math.RA2023

Planar, infinite, semidistributive lattices

George Grätzer, J. B. Nation

An FN lattice is a simple, infinite, semidistributive lattice. Its existence was recently proved by R. Freese and J.\,B. Nation. Let denote the Boolean lattice w…

cs.DB2018★ 3 cited

The Bases of Association Rules of High Confidence

Oren Segal, Justin Cabot-Miller, Kira Adaricheva +2

We develop a new approach for distributed computing of the association rules of high confidence in a binary table. It is derived from the D-basis algorithm in K. Adaricheva and J.B…

cs.DB2015★ 22 cited

Discovery of the -basis in binary tables based on hypergraph dualization

Kira Adaricheva, J. B. Nation

Discovery of (strong) association rules, or implications, is an important task in data management, and it finds application in artificial intelligence, data mining and the semantic…

math.CO2015★ 3 cited

A class of infinite convex geometries

Kira Adaricheva, J. B. Nation

Various characterizations of finite convex geometries are well known. This note provides similar characterizations for possibly infinite convex geometries whose lattice of closed s…

math.CO2013

Group Coding with Complex Isometries

Hye Jung Kim, J. B. Nation, Anne V. Shepler

We investigate group coding for arbitrary finite groups acting linearly on a vector space. These yield robust codes based on real or complex matrix groups. We give necessary and su…

math.OC2012★ 18 cited

On implicational bases of closure systems with unique critical sets

Kira Adaricheva, J. B. Nation

We show that every optimum basis of a finite closure system, in D.Maier's sense, is also right-side optimum, which is a parameter of a minimum CNF representation of a Horn Boolean…

math.CO2011★ 35 cited

Ordered direct implicational basis of a finite closure system

Kira Adaricheva, J. B. Nation, Robert Rand

Closure system on a finite set is a unifying concept in logic programming, relational data bases and knowledge systems. It can also be presented in the terms of finite lattices, an…

math.RA2011★ 2 cited

Lattices of quasi-equational theories as congruence lattices of semilattices with operators, Part II

Kira Adaricheva, J. B. Nation

Part I proved that for every quasivariety K of structures (which may have both operations and relations) there is a semilattice S with operators such that he lattice of quasi-equat…

math.RA2011★ 2 cited

Lattices of quasi-equational theories as congruence lattices of semilattices with operators, Part I

Kira Adaricheva, J. B. Nation

We show that for every quasivariety K of structures (where both functions and relations are allowed) there is a semilattice S with operators such that the lattice of quasi-equation…