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LBKT: A LSTM BERT-Based Knowledge Tracing Model for Long-Sequence Data 20th

LBKT: A LSTM BERT-Based Knowledge Tracing Model for Long-Seq...

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20th International Conference on Intelligent Tutoring Systems (ITS)

作者： Li, Zhaoxing Yang, Jujie Wang, Jindi Shi, Lei Feng, Jiayi Stein, Sebastian Univ Southampton Sch Elect & Comp Sci Southampton Hants England Univ Durham Dept Comp Sci Durham England Newcastle Univ Open Lab Sch Comp Newcastle Upon Tyne Tyne & Wear England Beijing Jiaotong Univ Beijing Peoples R China

ISBN: (纸本)9783031630309;9783031630316

The field of Knowledge Tracing (KT) aims to understand how students learn and master knowledge over time by analyzing their historical behaviour data. To achieve this goal, many researchers have proposed KT models that use data from Intelligent Tutoring Systems (ITS) to predict students' subsequent actions. However, with the development of ITS, large-scale datasets containing long-sequence data began to emerge. Recent deep learning based KT models face obstacles such as low efficiency, low accuracy, and low interpretability when dealing with large-scale datasets containing long-sequence data. To address these issues and promote the sustainable development of ITS, we propose a LSTM BERT-based Knowledge Tracing model for long sequence data processing, namely LBKT, which uses a BERT-based architecture with a Rasch model-based embeddings block to deal with different difficulty levels information and an LSTM block to process the sequential characteristic in students' actions. LBKT achieves the best performance on most benchmark datasets on the metrics of ACC and AUC.

关键词： Knowledge Tracing BERT Student Modelling Long-Sequence Data Processing Intelligent Tutoring Systems

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An Experimental Study of Facial Expressions in Collaborative Teams that Quit a Game-Based Learning Task: Within-Team Competition vs. No Within-Team Competition 19th

An Experimental Study of Facial Expressions in Collaborative...

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19th European Conference on Technology Enhanced Learning (EC-TEL)

作者： Dindar, Muhterem Cloude, Elizabeth B. Kiili, Kristian Tampere Univ Tampere Finland

ISBN: (纸本)9783031723148;9783031723155

In collaborative learning, emotions serve crucial functions that regulate task progress and social relationships among the team members. Although the research on the role of emotions in collaborative learning has been emerging, there is limited knowledge on how emotions emerge at different levels (individuals, teams) and its impact on collaborative learning, particularly when teams fail to complete a collaborative task. Therefore, the aim of this study is to explore how facial expressions of emotions unfold at the individual and the collective team level in a digital game-based learning setting in which collaborative teams eventually quit the collaborative task. A total of 30 high-school students' emotions were captured using facial expressions software and high-resolution video cameras from beginning to the quitting of the digital game on Biology (Min = 43 min;Max = 60 min). Before the collaborative learning task, participants were randomly assigned to work in a triad involving one of two experimental conditions: 1) a within-team competition (n = 5 teams) and a no within-team competition (n = 5 teams). Utilizing FaceReader, participants' momentary facial expressions of basic (i.e., happy, sad, anger, surprise, fear, and disgust) and neutral emotions were classified, and recurrence quantification analysis was utilized to study the recurrence of facial expressions within and between the members across the team conditions. Our findings indicate significant differences in the recurrence of facial expressions between the experimental conditions when they eventually quit the task. The current findings provide novel insights on the interplay between emotions and competitive dynamics in collaborative learning settings.

关键词： Emotions Collaborative learning Game-based learning

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SDG Aligned Data Warehouse Implementation over Open Government Data 13th

SDG Aligned Data Warehouse Implementation over Open Governme...

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13th International Conference on Electronic Government and the Information Systems Perspective (EGOVIS)

作者： Kulkarni, Apurva Srinivasa, Srinath Patil, Sanket Int Inst Informat Technol 26-CElect City Phase 1 Bangalore Karnataka India DataWeave Bangalore Karnataka India

ISBN: (纸本)9783031682100;9783031682117

Several Open Government Data (OGD) initiatives have resulted in the availability of open datasets that can be very useful for policy formulation and participatory decision-making. However, integrating these disparate datasets and seamlessly connecting them to all relevant data sources remains a critical challenge. Typically, OGD reflects the performance metrics of geographical units such as states, districts, or villages. This information is primarily utilized by policymakers and data analysts for decision-making within specific frameworks like the UN Sustainable Development Goals (SDGs). The current frameworks designed for data retrieval, whether based on keywords or domains, lack the capability to semantically map the inherent connections between data points and SDG constructs. In this research, we introduce a Data Warehouse framework over an open dataset provided by the government of the state of Karnataka in India. This framework aims to bridge the gap by enabling a more nuanced understanding of the relationship between data points collected by the OGD processes and SDGs. In this research, the proposed data warehouse is constructed based on a top-down approach. A fact constellation schema model is proposed to effectively capture information across multiple dimensions, including geographical data, temporal aspects, and various administrative units. The proposed framework is implemented over the OGD dataset called Karnataka at a Glance (KAG), and is equipped to handle OLAP (Online Analytical Processing) queries. The findings validate the integrity of the proposed architecture and demonstrate its capacity to facilitate the seamless integration of data ingestion processes.

关键词： Data Warehouse Multidimensional Data Modeling Fact Constellation SDGs Mapping to Data

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Constructing a Multi-dimensional Social Compensation Design Scale for Older People Within the Framework of Social Media for Smart Homes 10th

Constructing a Multi-dimensional Social Compensation Design ...

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10th International Conference on Human Aspects of IT for the Aged Population (ITAP) Held as Part of the 26th International Conference on Human-computer Interaction (HCII)

作者： Ma, Ke Gao, Meng He, Renke Hunan Univ Sch Design Yuelu Area Changsha 410082 Peoples R China

ISBN: (纸本)9783031615429;9783031615436

Managers and designers need to understand the subtleties of social compensation design so they can make social apps that meet the psychological needs of users and keep them using them. However, there is a significant gap in the research that has already been done on creating and validating a Social Compensation Design Scale (SCDS). This study aims to fill that gap by developing and testing the SCDS, specifically for older people living alone in cities. It will be used for smart home social media and looked at through the lens of information systems design. The study used the Delphi method and two rounds of surveys to get information from older people. SPSS 25.0 and Amos 28.0 were used to analyze the data. As part of the research process, the first scale was approved by experts and then put through strict reliability and validity tests. Exploratory Factor Analysis (EFA) found four main factors, which were then improved by Confirmatory Factor Analysis (CFA). This led to a model with good fit metrics. The results show that the SCDS has four parts: quality of the user interface, quality of interactions, quality of the content, and quality of the service. These four parts are measured by 16 items. This study gives managers and designers a structured way to determine how much social compensation older users experience when using smart home social media. This will significantly assist in creating and improving social apps that improve older people's overall health and happiness.

关键词： Social compensation design smart home social media older adults subjective well-being scale development

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Trust in Times of Cyber Crisis: Understanding Organizational Trust Repair in the Public Sector 23rd

Trust in Times of Cyber Crisis: Understanding Organizational...

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23rd International Conference on Electronic Government (EGOV)

作者： Nowak, David Distel, Bettina Univ Munster Leonardo Campus 3 D-48149 Munster Germany

ISBN: (纸本)9783031702730;9783031702747

Increasingly, the public sector faces cybersecurity threats and is attacked by both criminals and hacktivists. Targets of such attacks are most often critical infrastructures. The repercussions of such attacks extend beyond technical systems, impacting social, organizational, and economic realms. As cyber threats proliferate and prevention becomes challenging, effectively managing the aftermath of a cyberattack, i.e. a cybercrisis, becomes more important. This article delves into a lesser-explored aspect of digital government research and investigates the impact of cyberattacks on trust relationships within the public sector. Moreover, it sheds light on the strategies employed by affected organizations to restore trust. The article uses the case of five municipalities affected by a recent large-scale cyberattack on a regional IT-provider in Germany. Drawing on a comparative case study, it investigates the complex interplay between cybercrises and trust, emphasizing the potential of trust repair tactics in mitigating the negative impacts of a trust transgression in the public sector.

关键词： cybersecurity cyberattack digital government trust trust repair

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On the Correlation Complexity of MPC with Cheater Identification 27th

On the Correlation Complexity of MPC with Cheater Identifica...

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27th International Conference on Financial Cryptography and Data Security (FC)

作者： Brandt, Nicholas Maier, Sven Muller, Tobias Muller-Quade, Jorn Swiss Fed Inst Technol Zurich Switzerland Univ Paris CNRS IRIF Paris France Karlsruhe Inst Technol Karlsruhe Germany

ISBN: (纸本)9783031477539;9783031477546

Composable protocols for Multi-Party Computation that provide security with Identifiable Abort against a dishonest majority require some form of setup, e.g. correlated randomness among the parties. While this is a very useful model, it has the downside that the setup's randomness must be programmable, otherwise security becomes provably impossible. Since programmability is more realistic for smaller setups (in terms of number of parties), it is crucial to minimize the correlation complexity (degree of correlation) of the setup's randomness. We give a tight tradeoff between the correlation complexity beta and the corruption threshold t. Our bounds are strong in that beta-wise correlation is sufficient for statistical security while beta - 1-wise correlation is insufficient even for computational security. In particular, for strong security, i.e., t < n, full n-wise correlation is necessary. However, for any constant fraction of honest parties, we provide a protocol with constant correlation complexity which tightens the gap between the theoretical model and the setup's implementation in the real world. In contrast, previous state-of-the-art protocols require full n-wise correlation regardless of t.

关键词： Cryptography

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Assessing the Accessibility and Usability of Web Archives for Blind Users 28th

Assessing the Accessibility and Usability of Web Archives fo...

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28th International Conference on Linking Theory and Practice of Digital Libraries (TPDL)

作者： Sunkara, Mohan Nayak, Akshay Kolgar Kalari, Sandeep Kodandaram, Satwik Ram Jayarathna, Sampath Lee, Hae-Na Ashok, Vikas Old Dominion Univ Norfolk VA 23529 USA SUNY Stony Brook Stony Brook NY 11794 USA Michigan State Univ E Lansing MI 48824 USA

ISBN: (纸本)9783031724367;9783031724374

Web archives play a crucial role in preserving the digital history of the internet, given the inherent volatility of websites that constantly undergo modifications, content updates, and migrations, or even cease to exist altogether. Web archives ensure that present and historical web information will be available in the future for researchers, historians, students, corporations, and general public. Given their importance, it is essential for web archives to be equally accessible to everyone, including those with visual disabilities. In the absence of a prior in-depth investigation in this regard, this paper examines the status-quo accessibility and usability of five popular web archives for people who are blind. Specifically, we analyzed reports generated by an automated accessibility checker tool and also collected feedback from a user study with 10 blind screen reader users. The analysis of accessibility reports revealed issues that were common across the different archives, including a lack of text alternatives for images and the absence of proper aria labels. The user study showed that blind users struggled to do even basic search tasks to locate desired mementos or snapshots of websites saved in the archives. The participants also explicitly indicated that they found it strenuous to interact with web archives. Informed by these findings, we provide accessibility design suggestions for archives' web developers and assistive technology developers.

关键词： Web Archives Accessibility Usability Screen Reader Blind

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Exploring the Relationship Between Stress, Coping Strategies, and Performance in an Adapting Training System 6th

Exploring the Relationship Between Stress, Coping Strategies...

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6th International Conference on Adaptive Instructional Systems (AIS) Held as Part of the 26th International Conference on Human-computer Interaction (HCII)

作者： Gruber, Mira E. Diaz, Yazmin V. Schroeder, Bradford L. Hancock, Gabriella M. Hochreiter, Jason E. Rivera, Javier Thayer, Sean C. Van Buskirk, Wendi L. Univ Cent Florida Orlando FL 32816 USA Naval Air Warfare Ctr Training Syst Div Orlando FL 32826 USA Calif State Univ Long Beach Long Beach CA 90840 USA

ISBN: (纸本)9783031606083;9783031606090

Adaptive training (AT) is a promising avenue for training across multiple domains pertinent to warfighters, as it can adjust instruction and task difficulty based on the learner's real-time performance. Despite these benefits, such adaptations may elevate learner stress, hindering performance and learning. Coping strategies may be used to mitigate learner stress, but there is limited extant research comparing adaptive and maladaptive coping strategies in an adaptive training environment. This study explores the relationship between stress and task performance in the context of an adaptive training system that dynamically adjusted task difficulty based on real-time performance. Participants completed a radio frequency signal detection task in which they had to classify and report signals quickly and accurately. Participants were also instructed on adaptive or maladaptive stress coping strategies that either focused on the task itself (problem-focused) or on their emotions (emotion-focused). Results suggest that task engagement is related to performance and changes in micro-adaptive difficulty. Distress and worry, however, did not consistently relate to task performance or micro-adaptive difficulty. Problem-focused coping helped maintain task performance regardless of whether the strategy was adaptative or maladaptive. Maladaptive, emotion-focused coping led to the worst performance outcomes. Limitations and future directions are discussed.

关键词： Adaptive Training Adaptive Instructional System Micro-Adaptive Training Stress

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Exploring Data Altruism as Data Donation: A Review of Concepts, Actors and Objectives 1

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16th International Conference on Electronic Participation (ePart)

作者： Ansah, Dwayne Susha, Iryna Univ Utrecht Copernicus Inst Sustainable Dev Princetonlaan 8a NL-3584 CB Utrecht Netherlands

ISBN: (数字)9783031708046

ISBN: (纸本)9783031708039;9783031708046

This paper reviews data altruism in the emerging academic literature by collecting and analyzing conceptually similar terms, identifying key actors, and delineating the objectives of general interest underlying this novel form of voluntary data sharing. Drawing from a wide array of disciplines including computer science, social science, law, and medicine and bioethics, we discover frequent comparisons with the notions of data donation, data crowdsourcing, data philanthropy, and data solidarity. In our observations of current definitions and understandings of data altruism and these related terms, we draw attention to analyzing their salient similarities and differences. Our analysis of actors and roles illustrates a wide variety of players envisioned to participate in data altruism. Our examination of different types of data discussed in the literature suggests the data altruism value chain proposition is largely promissory, with limited empirical evidence supporting specified objectives of general interest. This review contributes to a refined understanding of data altruism as a formal 'data donation' institutionalization process in the European digital space and highlights its implications for future research.

关键词： data altruism data donation EU strategy for data data sharing data for good

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Exploring Historical Routes and Waypoints with MICOLL Digital Map 28th

Exploring Historical Routes and Waypoints with MICOLL Digita...

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28th International Conference on Linking Theory and Practice of Digital Libraries (TPDL)

作者： Giachelle, Fabio Dyble, Jake Di Nunzio, Giorgio Maria Gialdroni, Stefania Univ Padua Dept Informat Engn Padua Italy Univ Padua Dept Private Law & Crit Law Padua Italy

ISBN: (纸本)9783031724398;9783031724404

This work presents the MICOLL digital map, a web-based application for searching for historical routes and waypoints in the context of the ERC project "Migrating Commercial Law and Language (MICOLL). Rethinking Lex Mercatoria". The MICOLL digital map is an ongoing project that aims to allow historians and experts to easily search and discover the historical routes, used for exchanging goods and information, that connected European cities during the 11th-17th centuries. The final goal is to show their evolution over time by linking historical information to spatial waypoints and enabling a visual and interactive consultation over a digital map.

关键词： Historical Routes Digital Maps Cultural Heritage Linking Historical Evidence

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