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While neural machine translation (NMT) has achieved state-of-the-art translation performance, it is unable to capture the alignment between the input and output during the translation process. The lack of alignment in NMT models leads to…

Computation and Language · Computer Science 2019-12-02 Jiacheng Zhang , Huanbo Luan , Maosong Sun , FeiFei Zhai , Jingfang Xu , Yang Liu

Vision foundation models (FMs) have become the predominant architecture in computer vision, providing highly transferable representations learned from large-scale, multimodal corpora. Nonetheless, they exhibit persistent limitations on…

Computer Vision and Pattern Recognition · Computer Science 2025-08-27 Fatemeh Ziaeetabar

The Theory of Functional Connections (TFC) is a functional interpolation framework founded upon the so-called constrained expression: a functional that expresses the family of all possible functions that satisfy some user-specified, linear…

Analysis of PDEs · Mathematics 2021-10-25 Carl Leake

We propose algorithms to train production-quality n-gram language models using federated learning. Federated learning is a distributed computation platform that can be used to train global models for portable devices such as smart phones.…

Computation and Language · Computer Science 2019-10-09 Mingqing Chen , Ananda Theertha Suresh , Rajiv Mathews , Adeline Wong , Cyril Allauzen , Françoise Beaufays , Michael Riley

Hopfield attractor networks are robust distributed models of human memory, but lack a general mechanism for effecting state-dependent attractor transitions in response to input. We propose construction rules such that an attractor network…

Neural and Evolutionary Computing · Computer Science 2024-05-03 Madison Cotteret , Hugh Greatorex , Martin Ziegler , Elisabetta Chicca

Here we propose a variant of the nondeterministic finite automaton with translucent letters (NFAwtl) which, after reading and deleting a letter, does not return to the left end of its tape, but rather continues from the position of the…

Formal Languages and Automata Theory · Computer Science 2022-09-01 František Mráz , Friedrich Otto

We introduce weighted regular tree grammars with storage as combination of (a) regular tree grammars with storage and (b) weighted tree automata over multioperator monoids. Each weighted regular tree grammar with storage generates a…

Formal Languages and Automata Theory · Computer Science 2023-06-22 Zoltán Fülöp , Luisa Herrmann , Heiko Vogler

Advanced neural machine translation (NMT) models generally implement encoder and decoder as multiple layers, which allows systems to model complex functions and capture complicated linguistic structures. However, only the top layers of…

Computation and Language · Computer Science 2018-10-25 Zi-Yi Dou , Zhaopeng Tu , Xing Wang , Shuming Shi , Tong Zhang

The communication matrix for two-way deterministic finite automata (2DFA) with $n$ states is defined for an automaton over a full alphabet of all $(2n+1)^n$ possible symbols: its rows and columns are indexed by strings, and the entry $(u,…

Formal Languages and Automata Theory · Computer Science 2023-12-12 Semyon Petrov , Fedor Petrov , Alexander Okhotin

Finite automata are used to encode geometric figures, functions and can be used for image compression and processing. The original approach is to represent each point of a figure in $\mathbb{R}^n$ as a convolution of its $n$ coordinates…

Computational Geometry · Computer Science 2024-08-01 Dmitry Berdinsky , Prohrak Kruengthomya

Weighted essentially non-oscillatory (WENO) and finite volume (FV) methods employ different philosophies in their way to perform limiting. We show that a generalized view on limiter functions, which considers a two-dimensional, rather than…

Numerical Analysis · Mathematics 2016-01-12 Birte Schmidtmann , Benjamin Seibold , Manuel Torrilhon

Transition System Specifications provide programming and specification languages with a semantics. They provide the meaning of a closed term as a process graph: a state in a labelled transition system. At the same time they provide the…

Logic in Computer Science · Computer Science 2019-08-26 Rob van Glabbeek

TMs are a pattern recognition approach that uses finite state machines for learning and propositional logic to represent patterns. In addition to being natively interpretable, they have provided competitive accuracy for various tasks. In…

Computation and Language · Computer Science 2021-02-23 Rupsa Saha , Ole-Christoffer Granmo , Vladimir I. Zadorozhny , Morten Goodwin

Automated attack discovery techniques, such as attacker synthesis or model-based fuzzing, provide powerful ways to ensure network protocols operate correctly and securely. Such techniques, in general, require a formal representation of the…

Cryptography and Security · Computer Science 2022-02-24 Maria Leonor Pacheco , Max von Hippel , Ben Weintraub , Dan Goldwasser , Cristina Nita-Rotaru

In this paper we provide for parsing with respect to grammars expressed in a general TFS-based formalism, a restriction of ALE. Our motivation being the design of an abstract (WAM-like) machine for the formalism, we consider parsing as a…

cmp-lg · Computer Science 2016-08-31 Shuly Wintner , Nissim Francez

A finite number of rational functions are compatible if they satisfy the compatibility conditions of a first-order linear functional system involving differential, shift and q-shift operators. We present a theorem that describes the…

Symbolic Computation · Computer Science 2013-01-24 Shaoshi Chen , Ruyong Feng , Guofeng Fu , Ziming Li

Quotient is a basic operation of formal languages, which plays a key role in the construction of minimal deterministic finite automata (DFA) and the universal automata. In this paper, we extend this operation to formal power series and…

Formal Languages and Automata Theory · Computer Science 2012-03-13 Yongming Li , Qian Wang , Sanjiang Li

Connected operators are filtering tools that act by merging elementary regions of an image. A popular strategy is based on tree-based image representations: for example, one can compute an attribute on each node of the tree and keep only…

Computer Vision and Pattern Recognition · Computer Science 2012-07-17 Yongchao Xu , Thierry Géraud , Laurent Najman

Designers of statistical machine translation (SMT) systems have begun to employ tree-structured translation models. Systems involving tree-structured translation models tend to be complex. This article aims to reduce the conceptual…

Computation and Language · Computer Science 2007-05-23 I. Dan Melamed , Wei Wang

Watson-Crick (WK) finite automata work on a Watson-Crick tape representing a DNA molecule. They have two reading heads. In 5'->3' WK automata, the heads move and read the input in opposite physical directions. In this paper, we consider…

Formal Languages and Automata Theory · Computer Science 2024-09-12 Benedek Nagy