Results 51 to 60 of about 50,918 (285)

Construction method of optimal codebook based on Zadoff-Chu matrix

open access: yesTongxin xuebao, 2020
Codebooks with low-coherence have wide utilization in code division multiple access (CDMA) communications,quantum information theory,compressed sensing and so on.In order to expand the number of codebooks,the restrictions on the transformation matrix ...
Yubo LI   +3 more
doaj  

Essential work, invisible workers: The role of digital curation in COVID‐19 Open Science

open access: yesJournal of the Association for Information Science and Technology, Volume 76, Issue 4, Page 703-717, April 2025.
Abstract In this paper, we examine the role digital curation practices and practitioners played in facilitating open science (OS) initiatives amid the COVID‐19 pandemic. In Summer 2023, we conducted a content analysis of available information regarding 50 OS initiatives that emerged—or substantially shifted their focus—between 2020 and 2022 to address ...
Irene V. Pasquetto   +2 more
wiley   +1 more source

When AI outputs become documents: Documentation activity in human–AI dialogue

open access: yesJournal of the Association for Information Science and Technology, EarlyView.
Abstract Large language models (LLMs) generate texts that increasingly circulate as documents in knowledge infrastructures, yet their documentary status remains theoretically underdetermined. Unlike traditional documents, LLM outputs lack identifiable authorship, stable provenance, or testimonial grounding.
Sascha Donner
wiley   +1 more source

LOCALLY GLOBAL CODEBOOK FOR IMAGE RETRIEVAL AND CLUSTERING USING VECTOR QUANTIZATION [PDF]

open access: yesICTACT Journal on Image and Video Processing, 2012
In this paper, the incremental codebook generation process, which is a technique for representing a database of images as a single codebook, that captures the content of all the images is proposed.
B. Janet, A.V. Reddy, S. Domnic
doaj  

Student perspectives on AI‐supported formative assessment in pharmacology

open access: yesBritish Journal of Clinical Pharmacology, EarlyView.
Abstract Aims High‐quality feedback is crucial for helping medical students understand and apply core concepts of pharmacology, yet personalized feedback is resource‐intensive to produce. Artificial intelligence (AI) offers a potential solution, but little is known about students' perspectives on AI‐generated feedback.
Jon Andsnes Berg   +6 more
wiley   +1 more source

SCMA High-Dimensional Codebook Design Based on VBR-GAM

open access: yes天地一体化信息网络, 2023
At the physical layer, sparse code multiple access (SCMA) technology is used to solve the problem of massive user access.In the current research on SCMA, in addition to the research on SCMA multi-user detection technology, more attention will be paid to ...
Xu DENG, Ke CHU, Lidong ZHU
doaj   +2 more sources

Low Complexity and Robust Codebook-Based Analog Beamforming for Millimeter Wave MIMO Systems

open access: yesIEEE Access, 2017
Millimeter-wave (mm-Wave) MIMO systems have been proposed to achieve higher spectral efficiency via the hybrid beamforming structure, which consists of analog beamforming and digital beamforming.
Yong Niu   +5 more
doaj   +1 more source

Codebook with descriptive statistics for variables (min, max, and mean).

open access: yes, 2008
Codebook with descriptive statistics for variables (min, max, and mean)
Lau, Richard P., Redlawsk, David P.
core   +1 more source

International student agency in academic self‐formation: Mobility as agency situated within knowledge structures

open access: yesBritish Educational Research Journal, EarlyView.
Abstract With growing attention to student agency in academic and policy discourse, international education has become a prominent context for examining how students navigate new cultural, academic, linguistic and social environments. However, much of this discussion attributes student agency to the ‘international’ aspect, while overlooking the ...
Soyoung Lee
wiley   +1 more source

ncrncornell/ced2ar-nqwi-codebook: Codebook for the National QWI [Codebook file]

open access: yes, 2015
<p>Codebook for the early research version of National QWI.</p> <p>Live version of the DDI codebook at <a href="https://www2.ncrn.cornell.edu/ced2ar-web/codebooks/nqwi/">https://www2.ncrn.cornell.edu/ced2ar-web/codebooks/nqwi/<
Lars Vilhuber (6912134), Lars Vilhuber
core   +1 more source

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