Brain-Computer Interfaces (BCIs) allow users to control devices and communicate by using brain activity only. BCIs based on broad-band visual stimulation can outperform BCIs using other stimulation paradigms. Visual stimulation with pseudo-random bit-sequences evokes specific Broad-Band Visually Evoked Potentials (BBVEPs) that can be reliably used in BCI for high-speed communication in speller ...

The notion of a (closed) double-framed soft ideal (briefly, a (closed) DFS-ideal) in BCK/BCI-algebras is introduced, and related properties are investigated. Several examples are provided. The relation between a DFS-algebra and a DFS-ideal is considered, and characterizations of a (closed) DFS-ideal are established. A new DFS-ideal from old one is constructed, and we show that the int-uni DFS-s...

The notions of intuitionistic fuzzy T-ideals in BCI-algebras are introduced.Conditions for an intuitionistic fuzzy ideal to be an intuitionistic fuzzy T-idealare provided. Using a collection of T-ideals, intuitionistic fuzzy T-ideals areestablished.

Murali and Makamba (2001) introduced an equivalence of fuzzy subgroups. Dudek Jun (2004) studied the defined by in ideals a BCI-algebra. In this paper, we obtained sequence BCI-algebra X from ideal on X. We will show that, if two are equivalent, then them equivalent. that there is relationship between with adjoint A, where A Abelian subgroup Autµ(X).

OBJECTIVE When researchers evaluate brain-computer interface (BCI) systems, we want quantitative answers to questions such as: How good is the system's performance? How good does it need to be? and: Is it capable of reaching the desired level in future? In response to the current lack of objective, quantitative, study-independent approaches, we introduce methods that help to address such questi...

Our study shows that subjects can implicitly learn to use a steady-state visually-evoked potential (SSVEP) based brain computer interface (BCI). The SSVEP stimuli were presented in an immersive star field virtual environment. Within the star field the SSVEP stimuli appeared in a pseudo random order. Participants’ attention to the stimuli resulted in stars moving within the immersive space. Part...

Characterizations of fuzzy ideals of a pseudo-BCK algebra are established. Conditions for a fuzzy set to be a fuzzy ideal are given. Given a fuzzy set μ, the least fuzzy ideal containing μ is constructed. The homomorphic properties of fuzzy ideals of a pseudo-BCK algebra are provided. Finally, characterizations of Noetherian pseudo-BCK algebras and Artinian pseudo-BCK algebras in terms of fuzzy...

A pseudo-addition in BL-algebras is a binary operation that is associative and non commutative. The aim of this paper is to use the notion of pseudo-addition to study the notion of ideal and fuzzy ideal as a natural generalization of that of ideal and fuzzy ideal in MV-algebras. Using a pseudo-addition, we characterize fuzzy ideals and also obtain a concrete description of the fuzzy ideals gene...

With the aim of applying Łukasiewicz fuzzy set to commutative ideal in BCI-algebras, concept is introduced, and its properties are investigated. The relationship between a discussed. After providing an example ideal, not conditions under which can be explored. Characterizations ideals displayed. Conditions $\in$-set, q-set, O-set found.