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- Marty J. Wolf, Simon Easteal, Margaret Kahn, Brendan D. McKay, Lars S. Jermiin
- Bioinformatics
- 2000

MOTIVATION
Maximum-likelihood analysis of nucleotide and amino acid sequences is a powerful approach for inferring phylogenetic relationships and for comparing evolutionary hypotheses. Because it is a computationally demanding and time-consuming process, most algorithms explore only a minute portion of tree-space, with the emphasis on finding the most… (More)

- Marty J. Wolf
- Theor. Comput. Sci.
- 1994

- Frances S. Grodzinsky, Keith W. Miller, Marty J. Wolf
- Ethics and Information Technology
- 2008

In their important paper “Autonomous Agents”, Floridi and Sanders use “levels of abstraction” to argue that computers are or may soon be moral agents. In this paper we use the same levels of abstraction to illuminate differences between human moral agents and computers. In their paper, Floridi and Sanders contributed definitions of autonomy, moral… (More)

Heuristics for the NP-complete problem of calculating the optimal phylogenetic tree for a set of aligned rRNA sequences based on the maximum likelihood method are computationally expensive. In most existing algorithms the tree evaluation and branch length optimization functions, calculating the likelihood value for each tree topology examined in the search… (More)

- F. S. Grodzinsky, K. W. Miller, M. J. Wolf
- Ethics and Information Technology
- 2010

There is a growing literature on the concept of e-trust and on the feasibility and advisability of “trusting” artificial agents. In this paper we present an object-oriented model for thinking about trust in both face-to-face and digitally mediated environments. We review important recent contributions to this literature regarding e-trust in conjunction with… (More)

Heuristics for calculating phylogenetic trees for a large sets of aligned rRNA sequences based on the maximum likelihood method are computationally expensive. The core of most parallel algorithms, which accounts for the greatest part of computation time, is the tree evaluation function, that calculates the likelihood value for each tree topology. This paper… (More)

- Marty J. Wolf, Kevin W. Bowyer, Donald Gotterbarn, Keith W. Miller
- SIGCSE
- 2002

Open source software is making a large impact on many aspects of society including the business community, the computing industry, the entertainment industry and higher education. The computer science education community has been quiet about issues of open source versus closed source and the role of open source code in the advancement of information… (More)

- David J. Haglin, Marty J. Wolf
- SIAM J. Discrete Math.
- 1996

A tournament is a complete directed graph. A convex subset is a vertex subset with the property that every two-path beginning and ending inside the convex subset is contained completely within the subset. This paper shows that every nontrivial convex subset is the closure of a subset of vertices of cardinality two. This result leads to algorithms that nd… (More)

- Darren B. Parker, Randy F. Westhoff, Marty J. Wolf
- Eur. J. Comb.
- 2008

In the context of two-path convexity, we study the rank, Helly number, Radon number, Caratheodory number, and hull number for multipartite tournaments. We show the maximum Caratheodory number of a multipartite tournament is 3. We then derive tight upper bounds for rank in both general multipartite tournaments and clone-free multipartite tournaments. We show… (More)