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相关论文: A Question Answering System Using Graph-Pattern As…

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Question answering over RDF data like knowledge graphs has been greatly advanced, with a number of good systems providing crisp answers for natural language questions or telegraphic queries. Some of these systems incorporate textual sources…

信息检索 · 计算机科学 2024-09-24 Soumajit Pramanik , Jesujoba Alabi , Rishiraj Saha Roy , Gerhard Weikum

Recent video question answering benchmarks indicate that state-of-the-art models struggle to answer compositional questions. However, it remains unclear which types of compositional reasoning cause models to mispredict. Furthermore, it is…

计算机视觉与模式识别 · 计算机科学 2022-05-25 Mona Gandhi , Mustafa Omer Gul , Eva Prakash , Madeleine Grunde-McLaughlin , Ranjay Krishna , Maneesh Agrawala

We introduce graph pattern-based association rules (GPARs) for directed labeled multigraphs such as RDF graphs. GPARs support both generative tasks, where a graph is extended, and evaluative tasks, where the plausibility of a graph is…

数据库 · 计算机科学 2025-12-18 Basil Ell

Complex knowledge base question answering can be achieved by converting questions into sequences of predefined actions. However, there is a significant semantic and structural gap between natural language and action sequences, which makes…

计算与语言 · 计算机科学 2022-12-27 Yechun Tang , Xiaoxia Cheng , Weiming Lu

In question-answering (QA) systems, Retrieval-Augmented Generation (RAG) has become pivotal in enhancing response accuracy and reducing hallucination issues. The architecture of RAG systems varies significantly, encompassing single-round…

计算与语言 · 计算机科学 2025-08-05 Yiqun Chen , Erhan Zhang , Lingyong Yan , Shuaiqiang Wang , Jizhou Huang , Dawei Yin , Jiaxin Mao

In this document I present an approach to answer validation and reranking for question answering (QA) systems. A cased-based reasoning (CBR) system judges answer candidates for questions from annotated answer candidates for earlier…

人工智能 · 计算机科学 2015-03-11 Karl-Heinz Weis

Recent advancements in retrieval-augmented generation (RAG) have enhanced large language models in question answering by integrating external knowledge. However, challenges persist in achieving global understanding and aligning responses…

计算与语言 · 计算机科学 2025-06-24 Quanwei Tang , Sophia Yat Mei Lee , Junshuang Wu , Dong Zhang , Shoushan Li , Erik Cambria , Guodong Zhou

In this work, we propose a deep neural architecture that uses an attention mechanism which utilizes region based image features, the natural language question asked, and semantic knowledge extracted from the regions of an image to produce…

计算与语言 · 计算机科学 2021-04-06 Tasmia Tasrin , Md Sultan Al Nahian , Brent Harrison

Sanskrit (sa\d{m}sk\d{r}ta) enjoys one of the largest and most varied literature in the whole world. Extracting the knowledge from it, however, is a challenging task due to multiple reasons including complexity of the language and paucity…

计算与语言 · 计算机科学 2023-10-13 Hrishikesh Terdalkar , Arnab Bhattacharya

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…

信息检索 · 计算机科学 2021-12-13 Aleksandr Gashkov , Aleksandr Perevalov , Maria Eltsova , Andreas Both

Direct answering of questions that involve multiple entities and relations is a challenge for text-based QA. This problem is most pronounced when answers can be found only by joining evidence from multiple documents. Curated knowledge…

信息检索 · 计算机科学 2020-12-01 Xiaolu Lu , Soumajit Pramanik , Rishiraj Saha Roy , Abdalghani Abujabal , Yafang Wang , Gerhard Weikum

Question Answering System (QAS) is used for information retrieval and natural language processing (NLP) to reduce human effort. There are numerous QAS based on the user documents present today, but they all are limited to providing…

计算与语言 · 计算机科学 2017-01-02 Ahlam Ansari , Moonish Maknojia , Altamash Shaikh

Motivated by the incompleteness of modern knowledge graphs, a new setup for query answering has emerged, where the goal is to predict answers that do not necessarily appear in the knowledge graph, but are present in its completion. In this…

机器学习 · 计算机科学 2026-01-30 Krzysztof Olejniczak , Xingyue Huang , Mikhail Galkin , İsmail İlkan Ceylan

Recent literature highlights the potential of graph-based approaches within large language model (LLM) retrieval-augmented generation (RAG) pipelines for answering queries of varying complexity, particularly those that fall outside the…

信息检索 · 计算机科学 2026-04-24 Isabela Iacob , Melisa Marian , Gheorghe Cosmin Silaghi

Question answering (QA) models for reading comprehension have achieved human-level accuracy on in-distribution test sets. However, they have been demonstrated to lack robustness to challenge sets, whose distribution is different from that…

计算与语言 · 计算机科学 2021-06-07 Kazutoshi Shinoda , Saku Sugawara , Akiko Aizawa

Answering visual questions need acquire daily common knowledge and model the semantic connection among different parts in images, which is too difficult for VQA systems to learn from images with the only supervision from answers. Meanwhile,…

计算与语言 · 计算机科学 2018-05-23 Jialin Wu , Zeyuan Hu , Raymond J. Mooney

Knowledge graphs (KGs) are of great importance to many real world applications, but they generally suffer from incomplete information in the form of missing relations between entities. Knowledge graph completion (also known as relation…

机器学习 · 计算机科学 2021-03-02 Zijun Cui , Pavan Kapanipathi , Kartik Talamadupula , Tian Gao , Qiang Ji

We introduce REALTIME QA, a dynamic question answering (QA) platform that announces questions and evaluates systems on a regular basis (weekly in this version). REALTIME QA inquires about the current world, and QA systems need to answer…

This paper presents a cost-sensitive active Question-Answering (QA) framework for learning a nine-layer And-Or graph (AOG) from web images. The AOG explicitly represents object categories, poses/viewpoints, parts, and detailed structures…

计算机视觉与模式识别 · 计算机科学 2019-01-09 Quanshi Zhang , Ying Nian Wu , Hao Zhang , Song-Chun Zhu

Despite end-to-end neural systems making significant progress in the last decade for task-oriented as well as chit-chat based dialogue systems, most dialogue systems rely on hybrid approaches which use a combination of rule-based, retrieval…

计算与语言 · 计算机科学 2021-05-07 Ashish Shrivastava , Kaustubh Dhole , Abhinav Bhatt , Sharvani Raghunath