检索结果-内蒙古大学图书馆

Speaker Diarization for Low-Resource Languages Through Wav2vec Fine-Tuning

学校读者我要写书评

暂无评论

arXiv 2025年

作者： Abdullah, Abdulhady Abas Taher Karim, Sarkhel H. Ahmed, Sara Azad Tariq, Kanar R. Rashid, Tarik A. Artificial Intelligence and Innovation Centre University of Kurdistan Hewler Erbil Iraq Computer Science Department College of Science University of Halabja Kurdistan Region Iraq Computer Engineering Dep Komar University of Science and Technology Iraq Information Technology Department Technical College of Informatics Sulaimani Polytechnic University Sulaymaniyah Iraq

Speaker diarization, a core problem in speech processing, entails partitioning a given audio stream according to the speakers. Even though progress has been made in the development of the models for high-resource languages, there is still a set of specific difficulties in going through a similar process for low-resource languages such as Kurdish: there are very few annotated datasets available;the language has dialects;speakers use code-switching a lot. These challenges are met in this study by training the Wav2Vec 2.0 SSL model on a Kurdish dataset prepared for this purpose. Thanks to transfer learning, it was possible to transfer multilingual representations learnt in other languages to the phonetic and acoustic features of Kurdish speech. The general Diarization Error Rate (DER) was reduced by 7.2%, and the cluster purity increased by 13% when compared to the baseline algorithm. They show that making improvements in any state-of-the-art model can help in enhancing the performance of under-resourced languages. Implications of this work include transcription services for Kurdish-language media programs, as well as speaker segmentation in multilingual call centers, teleconferencing, and videoconferencing systems. Therefore, this work demonstrates that self-supervised and transfer techniques can improve speaker diarization for Kurdish and other low-resource languages with diverse features. The approach provides a base for building effective diarization systems in other understudied languages, which remains essential for speech technology’s equity. © 2025, CC BY.

关键词： Speech enhancement

Security Issues and Threats Facing the Electronic Enterprise Leadership 2

学校读者我要写书评

暂无评论

Security Issues and Threats Facing the Electronic Enterprise...

2nd International Conference on informatics, Multimedia, Cyber, and Information System, ICIMCIS 2020

作者： El-Ebiary, Yousef A. Baker Almandeel, Seita Ghanem, Waheed Ali H. M. Abu-Ulbeh, Waheeb Al-Dubai, Maged M. Mahyoub Bamansoor, Samer Faculty of Informatics and Computing UniSZA Terengganu Malaysia Faculty of Economics and Administration King Abdulaziz University Jeddah Saudi Arabia Faculty of Ocean Engineering Technology and Informatics Universiti Malaysia Terengganu Malaysia Amman Arab University Cyber Security Dep. Amman Jordan Management Development Institute of Singapore Tashkent Uzbekistan Faculty of Computer and Information Technology Mediu Kuala Lumpur Malaysia

ISBN: (纸本)9781728191676

the explosion if e.-commerce businesses have seen the growth if number if the online businesses worldwide. Consumers nowadays are opted with inline business commerce which is inconsiderably inconvenience compared to traditional transactions. Deniably, e.-commerce enterprises offer more benefits, comparing to 'bricks-Andmortal' traditional enterprises, but not to be missed the issues and challenges faced by the e-commerce enterprises. This study highlighted the issues and challenges of e-commerce and a set of proposed solutions to those issues and challenges. Among the issues are trust, readiness and security. For each of the issues and challenges, proposed solutions are presented. © 2020 IEEE.

关键词： Electronic commerce

ADMM-DAD NET: A DEEP UNFOLDING NETWORK FOR ANALYSIS COMPRESSED SENSING

学校读者我要写书评

暂无评论

arXiv 2021年

作者： Kouni, Vasiliki Paraskevopoulos, Georgios Rauhut, Holger Alexandropoulos, George C. Kouni, Vicky Dep. of Informatics and Telecommunications National & Kapodistrian University of Athens Greece Mathematics of Information Processing RWTH Aachen University Germany School of Electrical & Computer Engineering National Technical University of Athens Greece Institute for Language & Speech Processing Athena Research Center Athens Greece

In this paper, we propose a new deep unfolding neural network based on the ADMM algorithm for analysis Compressed Sensing. The proposed network jointly learns a redundant analysis operator for sparsification and reconstructs the signal of interest. We compare our proposed network with a state-of-the-art unfolded ISTA decoder, that also learns an orthogonal sparsifier. Moreover, we consider not only image, but also speech datasets as test examples. Computational experiments demonstrate that our proposed network outperforms the state-of-the-art deep unfolding network, consistently for both real-world image and speech datasets. © 2021, CC BY.

关键词： Compressed sensing

Gamification of in-classroom diagram design for science students

学校读者我要写书评

暂无评论

arXiv 2019年

作者： Mallas, Andreas Xenos, Michalis Computer Engineering and Informatics Dep. University of Patras Rio Campus University Building B Patras Greece

Merging the content of learning with the motivation of games can be a successful combination, if done properly and supported by the appropriate tool. Towards this goal, we developed Diagram-atic an environment used to gamify the in-classroom activity of designing diagrams during a lecture. Using Diagram-atic the professor, instead of lecturing about diagrams or showing examples of such diagrams, can design short games where the students could play by competing during the lecture. Diagram-atic is a complete environment offering to the professor a design application to create games and a management application. The management application is used for monitoring the games while students play, as well as to present the results to the students after the end of each game, or to evaluate these results after classroom time. The students may use the mobile application on their mobiles to practice by designing diagrams outside of the classroom, as well as to play a game during classroom time, but only after the professor starts this game. The environment handles the communication from students’ mobiles to the professor’s applications and vice versa, while the students submit their diagrams or receive the correct ones, so to proceed to follow up games. The current version of Diagram-atic is tailored for designing flow graphs used for path testing into a higher education software engineering course, but the environment can be used in any similar case requiring the design of diagrams (e.g. math, physics, chemistry). Copyright © 2019, The Authors. All rights reserved.

关键词： Students

Is FFT Fast Enough for Beyond 5G Communications? A Throughput-Complexity Analysis for OFDM Signals

学校读者我要写书评

暂无评论

arXiv 2020年

作者： Queiroz, Saulo Vilela, Joao P. Monteiro, Edmundo PR Ponta Grossa Brazil CISUC CRACS INESCTEC Dep. of Computer Science Faculty of Sciences University of Porto rua do Campo Alegre s/n Porto4169-007 Portugal CISUC Department of Informatics Engineering University of Coimbra Portugal

In this paper, we study the impact of computational complexity on the throughput limits of the fast Fourier transform (FFT) algorithm for orthogonal frequency division multiplexing (OFDM) waveforms. Based on the spectro-computational complexity (SC) analysis, we verify that the complexity of an N-point FFT grows faster than the number of bits in the OFDM symbol. Thus, we show that FFT nullifies the OFDM throughput on N unless the N-point discrete Fourier transform (DFT) problem verifies as Ω(N), which remains a "fascinating" open question in theoretical computer science. Also, because FFT demands N to be a power of two 2i (i > 0), the spectrum widening leads to an exponential complexity on i, i.e. O(2ii). To overcome these limitations, we consider the alternative frequency-time transform formulation of vector OFDM (V-OFDM), in which an N-point FFT is replaced by N/L (L>0) smaller L-point FFTs to mitigate the cyclic prefix overhead of OFDM. Building on that, we replace FFT by the straightforward DFT algorithm to release the V-OFDM parameters from growing as powers of two and to benefit from flexible numerology (e.g., L = 3, N = 156). Besides, by setting L to Θ(1), the resulting solution can run linearly on N (rather than exponentially on i) while sustaining a non null throughput as N grows. © 2020, CC BY.

关键词： Orthogonal frequency division multiplexing

A summary of the third workshop on theory-informed user modeling for tailoring and personalizing interfaces

学校读者我要写书评

暂无评论

A summary of the third workshop on theory-informed user mode...

2019 Joint ACM IUI Workshops, ACMIUI-WS 2019

作者： Graus, Mark P. Ferwerda, Bruce Tkalčič, Marko Germanakos, Panagiotis School of Business and Economics Maastricht University Maastricht Netherlands Faculty of Computer Science Free University of Bozen-Bolzano Bozen-Bolzano Italy BISS Institute Heerlen Netherlands Dep. of Computer Science University of Cyprus Cyprus Department of Computer Science and Informatics Jönköping University Jönköping Sweden UX ICD Product Engineering Intelligent Enterprise Group SAP SE Walldorf Germany

The third workshop on Theory-Informed User Modeling for Tailoring and Personalizing Interfaces (HUMANIZE)1 took place in conjunction with the 24th annual meeting of the intelligent user interfaces (IUI)2 community in Los Angeles, CA, USA on March 20, 2019. The goal of the workshop was to attract researchers from different fields by accepting contributions on the intersection of practical data mining methods and theoretical knowledge for personalization. A total of six papers were accepted for this edition of the workshop. © 2019 for the individual papers by the papers’ authors. Copying permitted for private and academic purposes. This volume is published and copyrighted by its editors.

关键词： User interfaces

Teaching industrial automation concepts with the use of virtual/augmented reality-The IEC 61499 case 17

学校读者我要写书评

暂无评论

Teaching industrial automation concepts with the use of virt...

17th International Conference on Information Technology Based Higher Education and Training, ITHET 2018

作者： Chrysoulas, Christos Homay, Aydin Lemac, Maria School of Engineering Computer Science and Informatics Dep. London South Bank Univeristy London United Kingdom R and D PEER Group GmbH Dresden Germany

ISBN: (纸本)9781538646236

We propose a framework for teaching complex industrial automation concepts with the help of Virtual/Augmented reality. Initially we construct the needed 3D models like conveyors belts, and liquid tanks to be used as testbed examples for the proposed approach and afterwards with the use of the appropriate engine and the Virtual Reality headset we create the enriched virtual and augmented reality use cases to support higher education students better understand complex industrial automation concepts. As this is an initial framework proposal, an extended literature review providing the needed background information on the status and progress of the Virtual and Augmented reality for educational and not only purposes is provided. The proposed system's architecture is in detail explained and use cases where the proposed approach can be used are presented. An overview of the IEC 61499 framework is also presented since it is the underlying framework for supporting the industrial automation concepts. © 2018 IEEE.

关键词： Augmented reality

A Load Balancing Algorithm for Resource Allocation in IEEE 802.15.4e Networks

学校读者我要写书评

暂无评论

A Load Balancing Algorithm for Resource Allocation in IEEE 8...

2018 IEEE International Conference on Pervasive Computing and Communications Workshops, PerCom Workshops 2018

作者： Kralevska, Katina Dimitrios Vergados, J. Jiang, Yuming Michalas, Angelos Dep. of Information Security and Communication Technology NTNU Norwegian University of Science and Technology Norway School of Electrical and Computer Engineering National Technical University of Athens Greece Department of Informatics Engineering Technological Education Institute of Western Macedonia Kastoria Greece

ISBN: (纸本)9781538632277

The recently created IETF 6TiSCH working group combines the high reliability and low-energy consumption of IEEE 802. 15.4e Time Slotted Channel Hopping with IPv6 for industrial Internet of Things. We propose a distributed link scheduling algorithm, called Local Voting, for 6TiSCH networks that adapts the schedule to the network conditions. The algorithm tries to equalize the link load (defined as the ratio of the queue length over the number of allocated cells) through cell reallocation. Local Voting calculates the number of cells to be added or released by the 6TiSCH Operation Sublayer 6top. Compared to a representative algorithm from the literature, Local Voting provides simultaneously high reliability and low end-to-end latency while consuming significantly less energy. Its performance has been examined and compared to On-the- fly algorithm in 6TiSCH simulator by modeling an industrial environment with 50 sensors. © 2018 IEEE.

关键词： Resource allocation

Are My Arguments Trustworthy? Abstract Argumentation with Subjective Logic

学校读者我要写书评

暂无评论

Are My Arguments Trustworthy? Abstract Argumentation with Su...

International Conference on Information Fusion

作者： Francesco Santini Audun Josang Maria Silvia Pini Dep. of Maths and Computer Science University of Perugia Italy Dep. of Informatics University of Oslo Norway Dep. of Information Engineering University of Padova Italy

An Abstract Argumentation Framework (AAF) is an abstract structure consisting of a set arguments, whose origin, nature, and possible internal organisation is not specified, and by a binary relation of attack on the set of arguments, whose meaning is not specified either. Subjective logic provides a standard set of logical operators, intended for use in domains containing uncertainty. In this paper, we define an extension of AAFs in which each argument and attacks is evaluated with an opinion, by revisiting the constellations approach developed for probabilistic AAFs. In this way, different agents can merge their opinions on how much arguments and attacks are "trustworthy", e.g., they do not represent fallacies or enthymemes. Finally, subjective logic operators can be used to fuse the belief of different possible worlds (i.e., a constellation of sub-graphs in the original AAF) containing different arguments and attacks.

关键词： Uncertainty Semantics Visualization Probabilistic logic Probability density function Cognition computer science