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Explanation methods and their evaluation have become a significant issue in explainable artificial intelligence (XAI) due to the recent surge of opaque AI models in decision support systems (DSS). Since the most accurate AI models are…

Artificial Intelligence · Computer Science 2023-08-30 Helena Löfström , Karl Hammar , Ulf Johansson

Explaining Machine Learning (ML) results in a transparent and user-friendly manner remains a challenging task of Explainable Artificial Intelligence (XAI). In this paper, we present a method to enhance the interpretability of ML models by…

Artificial Intelligence · Computer Science 2026-04-20 Thomas Bayer , Alexander Lohr , Sarah Weiß , Bernd Michelberger , Wolfram Höpken

Automated algorithm design is entering a new phase: Large Language Models can now generate full optimisation (meta)heuristics, explore vast design spaces and adapt through iterative feedback. Yet this rapid progress is largely…

Artificial Intelligence · Computer Science 2025-11-21 Niki van Stein , Anna V. Kononova , Thomas Bäck

Knowledge Graph Question Answering (KGQA) systems are based on machine learning algorithms, requiring thousands of question-answer pairs as training examples or natural language processing pipelines that need module fine-tuning. In this…

Artificial Intelligence · Computer Science 2022-02-03 Daniel Vollmers , Rricha Jalota , Diego Moussallem , Hardik Topiwala , Axel-Cyrille Ngonga Ngomo , Ricardo Usbeck

The development of large high-quality datasets and high-performing models have led to significant advancements in the domain of Extractive Question Answering (EQA). This progress has sparked considerable interest in exploring unanswerable…

Computation and Language · Computer Science 2023-09-12 Son Quoc Tran , Gia-Huy Do , Phong Nguyen-Thuan Do , Matt Kretchmar , Xinya Du

Automatic question generation (AQG) has broad applicability in domains such as tutoring systems, conversational agents, healthcare literacy, and information retrieval. Existing efforts at AQG have been limited to short answer lengths of up…

Computation and Language · Computer Science 2020-04-16 Shlok Kumar Mishra , Pranav Goel , Abhishek Sharma , Abhyuday Jagannatha , David Jacobs , Hal Daumé

Software with natural-language user interfaces has an ever-increasing importance. However, the quality of the included Question Answering (QA) functionality is still not sufficient regarding the number of questions that are answered…

Information Retrieval · Computer Science 2021-12-13 Aleksandr Gashkov , Aleksandr Perevalov , Maria Eltsova , Andreas Both

Answering complex questions over textual resources remains a challenge, particularly when dealing with nuanced relationships between multiple entities expressed within natural-language sentences. To this end, curated knowledge bases (KBs)…

Computation and Language · Computer Science 2023-09-08 Jingjing Xu , Maria Biryukov , Martin Theobald , Vinu Ellampallil Venugopal

Graph Retrieval-Augmented Generation (Graph RAG) effectively builds a knowledge graph (KG) to connect disparate facts across a large document corpus. However, this broad-view approach often lacks the deep structured reasoning needed for…

Computation and Language · Computer Science 2025-10-27 Jiaoyang Li , Junhao Ruan , Shengwei Tang , Saihan Chen , Kaiyan Chang , Yuan Ge , Tong Xiao , Jingbo Zhu

Virtually every sector of society is experiencing a dramatic growth in the volume of unstructured textual data that is generated and published, from news and social media online interactions, through open access scholarly communications and…

Computation and Language · Computer Science 2026-03-30 Vanni Zavarella

In today's digital world, seeking answers to health questions on the Internet is a common practice. However, existing question answering (QA) systems often rely on using pre-selected and annotated evidence documents, thus making them…

Computation and Language · Computer Science 2024-04-15 Juraj Vladika , Florian Matthes

The adoption of intelligent systems creates opportunities as well as challenges for medical work. On the positive side, intelligent systems have the potential to compute complex data from patients and generate automated diagnosis…

Human-Computer Interaction · Computer Science 2019-02-19 Yao Xie , Ge Gao , Xiang 'Anthony' Chen

Large language models (LLMs) have demonstrated remarkable performance on question-answering (QA) tasks because of their superior capabilities in natural language understanding and generation. However, LLM-based QA struggles with complex QA…

Computation and Language · Computer Science 2025-09-23 Chuangtao Ma , Yongrui Chen , Tianxing Wu , Arijit Khan , Haofen Wang

With the development of deep learning techniques and large scale datasets, the question answering (QA) systems have been quickly improved, providing more accurate and satisfying answers. However, current QA systems either focus on the…

Computation and Language · Computer Science 2021-01-19 Bingning Wang , Ting Yao , Weipeng Chen , Jingfang Xu , Xiaochuan Wang

Medical question answering (QA) systems have the potential to answer clinicians uncertainties about treatment and diagnosis on demand, informed by the latest evidence. However, despite the significant progress in general QA made by the NLP…

Computation and Language · Computer Science 2021-09-23 Gregory Kell , Iain J. Marshall , Byron C. Wallace , Andre Jaun

Large Language Models (LLMs) have exhibited impressive generation capabilities, but they suffer from hallucinations when solely relying on their internal knowledge, especially when answering questions that require less commonly known…

Computation and Language · Computer Science 2023-11-01 Wenting Zhao , Ye Liu , Tong Niu , Yao Wan , Philip S. Yu , Shafiq Joty , Yingbo Zhou , Semih Yavuz

The paper presents an approach to build a question and answer system that is capable of processing the information in a large dataset and allows the user to gain knowledge from this dataset by asking questions in natural language form. Key…

Computation and Language · Computer Science 2019-02-07 M. R , Akram , C. P , Singhabahu , M. S. M Saad , P , Deleepa , Anupiya , Nugaliyadde , Yashas , Mallawarachchi

Human-centered explainability has become a critical foundation for the responsible development of interactive information systems, where users must be able to understand, interpret, and scrutinize AI-driven outputs to make informed…

Human-Computer Interaction · Computer Science 2025-07-04 Yuhao Zhang , Jiaxin An , Ben Wang , Yan Zhang , Jiqun Liu

We explore the use of long-context capabilities in large language models to create synthetic reading comprehension data from entire books. Previous efforts to construct such datasets relied on crowd-sourcing, but the emergence of…

Question answering (QA) has been the subject of a resurgence over the past years. The said resurgence has led to a multitude of question answering (QA) systems being developed both by companies and research facilities. While a few…

Artificial Intelligence · Computer Science 2016-11-09 Ricardo Usbeck , Jonathan Huthmann , Nico Duldhardt , Axel-Cyrille Ngonga Ngomo