1. Statistically significant features improve binary and multiple motor imagery task predictions from EEGsMurside Degirmenci, Yilmaz Kemal Yuce, Matjaž Perc, Yalcin Isler, 2023, original scientific article Abstract: In recent studies, in the field of Brain-Computer Interface (BCI), researchers have
focused on Motor Imagery tasks. Motor Imagery-based electroencephalogram
(EEG) signals provide the interaction and communication between the paralyzed
patients and the outside world for moving and controlling external devices
such as wheelchair and moving cursors. However, current approaches in the
Motor Imagery-BCI system design require.
Keywords: brain-computer interfaces, electroencephalogram, feature selection, machine learning, task classification
Published in DKUM: 10.09.2024; Views: 8; Downloads: 0
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2. Smart unattended home delivery box : European patent specification EP 3 799 554 B1, 2023-07-12Amor Chowdhury, Miloš Urbanija, Luka Gošte, Dalibor Igrec, 2023, patent Abstract: The invention refers to a secure locker box including a basic box (100) with a door enclosing a storage area, and a lock system for locking said door, said lock system including a processing unit (201), an electro mechanical door lock (202), and a wireless communication module (300). The processing unit (201) is adapted to receive a wakeup signal via said wireless communication module (300); send a request for unlocking said electro mechanical door lock (202) and opening said door; in response to receiving an unlock confirmation message, actuate said electro mechanical door lock (202) such that it opens said door; recognize closing of said door and locking said electro mechanical door lock (202) and in response sending a door closed and door lock locked confirmation message. A method for handling the secure locker box comprises receiving the confirmation message by a remote locker center (400) and writing a confirmation to a blockchain to ensure authenticity.
Keywords: user interfaces
Published in DKUM: 12.10.2023; Views: 418; Downloads: 6
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3. Intelligent user interfaces and their evaluation: a systematic mapping studySaša Brdnik, Tjaša Heričko, Boštjan Šumak, 2022, original scientific article Abstract: Intelligent user interfaces (IUI) are driven by the goal of improvement in human–computer interaction (HCI), mainly improving user interfaces’ user experience (UX) or usability with the help of artificial intelligence. The main goal of this study is to find, assess, and synthesize existing state-of-the-art work in the field of IUI with an additional focus on the evaluation of IUI. This study analyzed 211 studies published in the field between 2012 and 2022. Studies are most frequently tied to HCI and SE domains. Definitions of IUI were observed, showing that adaptation, representation, and intelligence are key characteristics associated with IUIs, whereas adaptation, reasoning, and representation are the most commonly used verbs in their description. Evaluation of IUI is mainly conducted with experiments and questionnaires, though usability and UX are not considered together in evaluations. Most evaluations (81% of studies) reported partial or complete improvement in usability or UX. A shortage of evaluation tools, methods, and metrics, tailored for IUI, is noticed. Most often, empirical data collection methods and data sources in IUI evaluation studies are experiment, prototype development, and questionnaire.
Keywords: intelligent user interfaces, IUI, usability, user experience, evaluation
Published in DKUM: 01.08.2023; Views: 548; Downloads: 47
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4. Constitutive modeling and computer methods in geotechnical engineeringChandrakant Desai, 2010, original scientific article Abstract: Computer methods are in the forefront of the procedures for analysis and design for geotechnical problems. Constitutive models that characterize the behavior of geologic materials and interfaces/joints play a vital role in the solutions obtained by using computer methods or any other solution procedure. The literature on both constitutive and computer models is wide; attention in this paper is devoted to the disturbed state concept (DSC) for constitutive modeling and the finite element method for computer solutions. The disturbed state concept, a unified and hierarchical approach, provides a unified framework for characterization of the behavior of geologic materials and interfaces/joints. Important factors such as elastic, plastic and creep responses, stress paths, volume change (contraction and dilation), disturbance (softening and damage or stiffening), thermal effects, partial saturation and liquefaction can be included in the same DSC framework. Because of its hierarchical nature, simplified models for specific applications can be derived from the DSC. It has been applied successfully for defining behavior of many geologic materials and interfaces/joints.
Procedures for the determination of parameters for the DSC models based on laboratory tests have been developed. Various models from the DSC have been validated at the specimen level with respect to laboratory test data. They have been validated at the practical boundary value problem level by comparing observed behavior in the field and/or simulated problems in the laboratory with predictions using computer (finite element) procedures in which DSC has been implemented; these have been presented in various publications by Desai and coworkers, and are listed in the References. Three typical examples of such validations at the practical problem level are included in this paper. It is believed that the DSC can provide unified and powerful models for a wide range of geomechanical and other engineering materials, and interfaces/joints.
Keywords: constitutive modeling, disturbed state concept, DSC, geologic materials, interfaces/joints
Published in DKUM: 11.06.2018; Views: 917; Downloads: 91
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6. Improving integrity of embedded computers in controlMatjaž Colnarič, Domen Verber, Wolfgang A. Halang, 2003, review article Abstract: This paper gives an overview of a holistic project dealing with the consistent design of embedded control systems falling into the first level of safety integrity requirements (SIL l) (IEC, 1998). It shows how existing methods can be adapted and reasonably employed, whenever possible, without having to resort to new innovations. Firstly, the hardware issues are dealt with and extensively elaborated, particularly the peripheral interfaces with integrated processing capabilities. Secondly, the proven correct real-time operating system executing on its own dedicated processor is briefly addressed, and finally, programming issues including descriptions of the specific programming language, time bounded handling of exceptions, and how to deal with temporal overload.
Keywords: safety critical embedded systems, embedded systems, fault tolerant control systems, peripheral interfaces, exception handling, overload
Published in DKUM: 01.06.2012; Views: 1695; Downloads: 113
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