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Social chatbots have become essential intelligent companions in daily scenarios ranging from emotional support to personal interaction. However, conventional chatbots with passive response mechanisms usually rely on users to initiate or…

Artificial Intelligence · Computer Science 2025-04-30 Zihan Niu , Zheyong Xie , Shaosheng Cao , Chonggang Lu , Zheyu Ye , Tong Xu , Zuozhu Liu , Yan Gao , Jia Chen , Zhe Xu , Yi Wu , Yao Hu

Smart systems for Universities powered by Artificial Intelligence have been massively developed to help humans in various tasks. The chatbot concept is not something new in today society which is developing with recent technology. College…

Computation and Language · Computer Science 2021-05-26 Yurio Windiatmoko , Ahmad Fathan Hidayatullah , Ridho Rahmadi

Since the launch of ChatGPT at the end of 2022, generative dialogue models represented by ChatGPT have quickly become essential tools in daily life. As user expectations increase, enhancing the capability of generative dialogue models to…

Computation and Language · Computer Science 2024-09-02 Yuetong Zhao , Hongyu Cao , Xianyu Zhao , Zhijian Ou

Student commitment towards a learning recommendation is not separable from their understanding of the reasons it was recommended to them; and their ability to modify it based on that understanding. Among explainability approaches, chatbots…

Artificial Intelligence · Computer Science 2024-01-25 Hasan Abu-Rasheed , Mohamad Hussam Abdulsalam , Christian Weber , Madjid Fathi

Federated recommendation applies federated learning techniques in recommendation systems to help protect user privacy by exchanging models instead of raw user data between user devices and the central server. Due to the heterogeneity in…

Information Retrieval · Computer Science 2022-08-22 Sichun Luo , Yuanzhang Xiao , Linqi Song

Federated learning is a machine learning approach that enables multiple devices (i.e., agents) to train a shared model cooperatively without exchanging raw data. This technique keeps data localized on user devices, ensuring privacy and…

Machine Learning · Computer Science 2025-07-16 Dimitrios Kritsiolis , Constantine Kotropoulos

Language models (LMs) such as BERT and GPT have revolutionized natural language processing (NLP). However, the medical field faces challenges in training LMs due to limited data access and privacy constraints imposed by regulations like the…

Computation and Language · Computer Science 2023-11-14 Le Peng , Gaoxiang Luo , sicheng zhou , jiandong chen , Rui Zhang , Ziyue Xu , Ju Sun

Large Language Models (LLMs) have revolutionized intelligent services by enabling logical reasoning, tool use, and interaction with external systems as agents. The advancement of LLMs is frequently hindered by the scarcity of high-quality…

Machine Learning · Computer Science 2024-12-12 Panlong Wu , Kangshuo Li , Junbao Nan , Fangxin Wang

The integration of AI in education offers significant potential to enhance learning efficiency. Large Language Models (LLMs), such as ChatGPT, Gemini, and Llama, allow students to query a wide range of topics, providing unprecedented…

Information Retrieval · Computer Science 2025-04-29 Zhaoxing Li , Vahid Yazdanpanah , Jindi Wang , Wen Gu , Lei Shi , Alexandra I. Cristea , Sarah Kiden , Sebastian Stein

The rapid adoption of Generative AI, including LLM-based chatbots like ChatGPT, has highlighted the need for accessible ways to support public understanding and AI literacy. To address this need, we introduce a game-based, interactive…

Computation and Language · Computer Science 2026-05-21 Francesca Padovani , Malvina Nissim

Chat GPT belongs to the category of Generative Pre-trained Transformer (GPT) language models, which have received specialized training to produce text based on natural language inputs. Its purpose is to imitate human-like conversation and…

Human-Computer Interaction · Computer Science 2023-11-03 Wei Zhou

Chatbots are mainly data-driven and usually based on utterances that might be sensitive. However, training deep learning models on shared data can violate user privacy. Such issues have commonly existed in chatbots since their inception. In…

Computation and Language · Computer Science 2023-04-07 Addi Ait-Mlouk , Sadi Alawadi , Salman Toor , Andreas Hellander

In the domain of digital information dissemination, search engines act as pivotal conduits linking information seekers with providers. The advent of chat-based search engines utilizing Large Language Models (LLMs) and Retrieval Augmented…

Information Retrieval · Computer Science 2024-03-01 Lijia Ma , Xingchen Xu , Yong Tan

Knowledge Tracing (KT) infers a student's knowledge state from past interactions to predict future performance. Conventional Deep Learning (DL)-based KT models are typically tied to platform-specific identifiers and latent representations,…

Artificial Intelligence · Computer Science 2026-04-23 Zhiyi Duan , Hongyu Yuan , Rui Liu

Personalized News Recommendation systems (PNR) have emerged as a solution to information overload by predicting and suggesting news items tailored to individual user interests. However, traditional PNR systems face several challenges,…

Social and Information Networks · Computer Science 2025-07-24 Mehdi Khalaj , Shahrzad Golestani Najafabadi , Julita Vassileva

Retrieval-Augmented Generation (RAG) empowers LLMs with external knowledge, making cross-institutional domain-specific knowledge base integration a highly promising deployment paradigm. Despite this potential, strict privacy regulations…

Cryptography and Security · Computer Science 2026-05-26 Chenxin Mao , Shangyu Liu , Zhenzhe Zheng , Fan Wu , Jie Wu , Guihai Chen

Federated learning (FL) is a system in which a central aggregator coordinates the efforts of multiple clients to solve machine learning problems. This setting allows training data to be dispersed in order to protect privacy. The purpose of…

Machine Learning · Computer Science 2022-06-27 Subrato Bharati , M. Rubaiyat Hossain Mondal , Prajoy Podder , V. B. Surya Prasath

In the age of data-driven decision making, preserving privacy while providing personalized experiences has become paramount. Personalized Federated Learning (PFL) offers a promising framework by decentralizing the learning process, thus…

Machine Learning · Computer Science 2025-01-31 Kevin Cooper , Michael Geller

Knowledge sharing and model personalization are two key components in the conceptual framework of personalized federated learning (PFL). Existing PFL methods focus on proposing new model personalization mechanisms while simply implementing…

Machine Learning · Computer Science 2022-05-03 Fengwen Chen , Guodong Long , Zonghan Wu , Tianyi Zhou , Jing Jiang

Academic regulation advising is essential for helping students interpret and comply with institutional policies, yet building effective systems requires domain specific regulatory resources. To address this challenge, we propose REBot, an…

Artificial Intelligence · Computer Science 2025-12-02 Thanh Ma , Tri-Tam La , Lam-Thu Le Huu , Minh-Nghi Nguyen , Khanh-Van Pham Luu