no code implementations • 14 Dec 2023 • Abu Mohammmad Hammad Ali, Boting Yang, Sandra Zilles
We first analyze a trivial 2-approximation algorithm that simply outputs the best of the given input preferences, and establish a structural condition under which the approximation ratio of this algorithm is improved to $4/3$.
no code implementations • 24 Dec 2022 • Farnam Mansouri, Sandra Zilles
This paper presents a construction of a proper and stable labelled sample compression scheme of size $O(\VCD^2)$ for any finite concept class, where $\VCD$ denotes the Vapnik-Chervonenkis Dimension.
no code implementations • 20 Jun 2022 • Mohamadsadegh Khosravani, Sandra Zilles
The success of deep active learning hinges on the choice of an effective acquisition function, which ranks not yet labeled data points according to their expected informativeness.
no code implementations • 10 Nov 2020 • Dana Fisman, Hadar Frenkel, Sandra Zilles
We revisit the complexity of procedures on SFAs (such as intersection, emptiness, etc.)
no code implementations • 10 Mar 2019 • David Kirkpatrick, Hans U. Simon, Sandra Zilles
In addition to formulating an optimal model of collusion-free teaching, our main results are on the computational complexity of deciding whether $\mathrm{NCTD}^+(\mathcal{C})=k$ (or $\mathrm{NCTD}(\mathcal{C})=k$) for given $\mathcal{C}$ and $k$.
no code implementations • 18 Jan 2018 • Xiaojin Zhu, Adish Singla, Sandra Zilles, Anna N. Rafferty
In this paper we try to organize machine teaching as a coherent set of ideas.
no code implementations • 11 Jan 2018 • Eisa Alanazi, Malek Mouhoub, Sandra Zilles
To assess the optimality of learning algorithms as well as to better understand the combinatorial structure of classes of CP-nets, it is helpful to calculate certain learning-theoretic information complexity parameters.
no code implementations • 14 Nov 2017 • Mehdi Sadeqi, Robert C. Holte, Sandra Zilles
However, the quality of abstraction-based heuristic functions, and thus the speed of search, can suffer from spurious transitions, i. e., state transitions in the abstract state space for which no corresponding transitions in the reachable component of the original state space exist.
1 code implementation • 10 Mar 2017 • Jingwei Chen, Robert C. Holte, Sandra Zilles, Nathan R. Sturtevant
pairs, and present a new admissible front-to-end bidirectional heuristic search algorithm, Near-Optimal Bidirectional Search (NBS), that is guaranteed to do no more than 2VC expansions.
no code implementations • 6 Feb 2017 • Zi-Yuan Gao, Christoph Ries, Hans Ulrich Simon, Sandra Zilles
We introduce a new model of teaching named "preference-based teaching" and a corresponding complexity parameter---the preference-based teaching dimension (PBTD)---representing the worst-case number of examples needed to teach any concept in a given concept class.
1 code implementation • 24 Jul 2016 • Shankar Vembu, Sandra Zilles
Interactive learning is a process in which a machine learning algorithm is provided with meaningful, well-chosen examples as opposed to randomly chosen examples typical in standard supervised learning.
no code implementations • 5 Jul 2015 • Zi-Yuan Gao, Frank Stephan, Sandra Zilles
Here three variants of approximate learning will be introduced and investigated with respect to the question whether they can be combined with partial learning.