Results 21 to 30 of about 112,755 (263)

Self-embeddings of trees

open access: yesDiscrete Mathematics, 2019
We prove a fix point theorem for monoids of self-embeddings of trees. As a corollary, we obtain a result by Laflamme, Pouzet and Sauer that a tree either contains a subdivided binary tree as a subtree or has a vertex, and edge, an end or two ends fixed by all its self-embeddings.
openaire   +2 more sources

Fixed points of self-embeddings of models of arithmetic [PDF]

open access: yesAnnals of Pure and Applied Logic, 2018
36 page; this is a revised draft in which misprints of the previous draft are ...
Bahrami, Saeideh, Enayat, Ali
openaire   +2 more sources

Boosting Arabic Named-Entity Recognition With Multi-Attention Layer

open access: yesIEEE Access, 2019
Sequence labeling models with recurrent neural network variants, such as long short-term memory (LSTM) and gated recurrent unit (GRU), show promising performance on several natural language processing (NLP) problems, including named-entity recognition ...
Mohammed Nadher Abdo Ali   +2 more
doaj   +1 more source

Recursive self-embedded vocal motifs in wild orangutans

open access: yeseLife, 2023
Abstract Recursive procedures that allow placing a vocal signal inside another of similar kind provide a neuro-computational blueprint for syntax and phonology in spoken language and human song. There are, however, no known vocal sequences among nonhuman primates arranged in self-embedded patterns that evince vocal recursion or ...
Adriano R. Lameira   +4 more
openaire   +6 more sources

Chaos-based scramble self-embedding watermarking algorithm

open access: yesTongxin xuebao, 2006
A chaos-based scramble self-embedding watermarking algorithm was proposed to locate tamper block on the wa- termarked images and improve security of the existing self-embedding fragile watermarking algorithms that could not effec- tively locate tamper ...
HE Hong-jie, ZHANG Jia-shu
doaj   +2 more sources

Key-Free Image Encryption Algorithm Based on Self-Triggered Gaussian Noise Sampling

open access: yesIEEE Access
With the emergence of the big data era, data privacy has become an increasingly important concern. Digital image, as one of the most prevalent forms of data, frequently contains sensitive information. Thus, ensuring the protection of this information has
Kai Gao, Chin-Chen Chang, Chia-Chen Lin
doaj   +1 more source

Sentence model based subword embeddings for a dialog system

open access: yesETRI Journal, 2022
This study focuses on improving a word embedding model to enhance the performance of downstream tasks, such as those of dialog systems. To improve traditional word embedding models, such as skip-gram, it is critical to refine the word features and expand
Euisok Chung   +2 more
doaj   +1 more source

A Triple Self-Embedding Fragile Watermarking Scheme for Image Tamper Detection and Recovery

open access: yesIEEE Access
This paper presents a new triple self-embedding fragile watermarking technique for image tamper detection and recovery. This approach divides the host image into non-overlapping regions according to the block map and further divides each region into $5 ...
Huseyin Ozkaya, Veysel Aslantas
doaj   +1 more source

Embedding Repositories: A Guide and Self-Assessment Tool

open access: yesJournal of Librarianship and Scholarly Communication, 2012
As the number of institutional repositories continues to grow, the conversation is evolving from how to establish a repository to how to make a repository integral to the operations of an institution.
Deborah Barreau
doaj   +2 more sources

Parents of Youth With Cancer Report on Their Psychosocial Care: iSTEPPP Survey Finds Alignment and Gaps With Standards

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background The Standards for Psychosocial Care for Children with Cancer and Their Families guide the provision of comprehensive psychosocial care. Parallel to research characterizing implementation of the Standards from the perspective of providers, this study examines implementation of the Standards from the perspective of parents of youth ...
Emily M. Pariseau   +8 more
wiley   +1 more source

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