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Unconstrained handwritten text recognition is a major step in most document analysis tasks. This is generally processed by deep recurrent neural networks and more specifically with the use of Long Short-Term Memory cells. The main drawbacks…

Computer Vision and Pattern Recognition · Computer Science 2020-12-10 Denis Coquenet , Clément Chatelain , Thierry Paquet

The vocabulary mismatch problem is a long-standing problem in information retrieval. Semantic matching holds the promise of solving the problem. Recent advances in language technology have given rise to unsupervised neural models for…

Information Retrieval · Computer Science 2016-11-11 Kezban Dilek Onal , Ismail Sengor Altingovde , Pinar Karagoz , Maarten de Rijke

Retrieval-Augmented Generation (RAG) systems for question answering typically retrieve evidence by semantic similarity between the query and document chunks. While effective for unstructured text, this approach is less reliable on…

Learning hidden topics from data streams has become absolutely necessary but posed challenging problems such as concept drift as well as short and noisy data. Using prior knowledge to enrich a topic model is one of potential solutions to…

Machine Learning · Computer Science 2021-12-28 Ngo Van Linh , Tran Xuan Bach , Khoat Than

Text-based person search aims to retrieve images of a certain pedestrian by a textual description. The key challenge of this task is to eliminate the inter-modality gap and achieve the feature alignment across modalities. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2021-12-14 Shiping Li , Min Cao , Min Zhang

We present a generative image inpainting system to complete images with free-form mask and guidance. The system is based on gated convolutions learned from millions of images without additional labelling efforts. The proposed gated…

Computer Vision and Pattern Recognition · Computer Science 2019-10-23 Jiahui Yu , Zhe Lin , Jimei Yang , Xiaohui Shen , Xin Lu , Thomas Huang

In order to facilitate natural language understanding, the key is to engage commonsense or background knowledge. However, how to engage commonsense effectively in question answering systems is still under exploration in both research…

Computation and Language · Computer Science 2020-11-06 Qianglong Chen , Feng Ji , Haiqing Chen , Yin Zhang

The neural seq2seq based question generation (QG) is prone to generating generic and undiversified questions that are poorly relevant to the given passage and target answer. In this paper, we propose two methods to address the issue. (1) By…

Computation and Language · Computer Science 2019-10-09 Jiazuo Qiu , Deyi Xiong

Retrieval-Augmented Generation (RAG) architectures have recently garnered significant attention for their ability to improve truth grounding and coherence in natural language processing tasks. However, the reliability of RAG systems in…

Computation and Language · Computer Science 2024-12-04 Joel Suro

A major obstacle to the wide-spread adoption of neural retrieval models is that they require large supervised training sets to surpass traditional term-based techniques, which are constructed from raw corpora. In this paper, we propose an…

Information Retrieval · Computer Science 2021-01-28 Ji Ma , Ivan Korotkov , Yinfei Yang , Keith Hall , Ryan McDonald

A common recent approach to semantic parsing augments sequence-to-sequence models by retrieving and appending a set of training samples, called exemplars. The effectiveness of this recipe is limited by the ability to retrieve informative…

Computation and Language · Computer Science 2022-09-30 Yury Zemlyanskiy , Michiel de Jong , Joshua Ainslie , Panupong Pasupat , Peter Shaw , Linlu Qiu , Sumit Sanghai , Fei Sha

Open-domain human-computer conversation has attracted much attention in the field of NLP. Contrary to rule- or template-based domain-specific dialog systems, open-domain conversation usually requires data-driven approaches, which can be…

Computation and Language · Computer Science 2016-10-25 Yiping Song , Rui Yan , Xiang Li , Dongyan Zhao , Ming Zhang

While deep generative models are showing exciting abilities in computer vision and natural language processing, their adoption in communication frameworks is still far underestimated. These methods are demonstrated to evolve solutions to…

Computation and Language · Computer Science 2024-01-17 Eleonora Grassucci , Jihong Park , Sergio Barbarossa , Seong-Lyun Kim , Jinho Choi , Danilo Comminiello

Retrieving semantically relevant documents in niche domains poses significant challenges for traditional TF-IDF-based systems, often resulting in low similarity scores and suboptimal retrieval performance. This paper addresses these…

Information Retrieval · Computer Science 2024-12-24 Elham Peimani , Gurpreet Singh , Nisarg Mahyavanshi , Aman Arora , Awais Shaikh

The rapid growth of Internet services and mobile devices provides an excellent opportunity to satisfy the strong demand for the personalized item or product recommendation. However, with the tremendous increase of users and items,…

Information Retrieval · Computer Science 2018-12-10 Chen Ma , Peng Kang , Bin Wu , Qinglong Wang , Xue Liu

Retrieval-augmented generation (RAG) frameworks enable large language models (LLMs) to retrieve relevant information from a knowledge base and incorporate it into the context for generating responses. This mitigates hallucinations and…

Computation and Language · Computer Science 2024-04-09 Pouria Rouzrokh , Shahriar Faghani , Cooper U. Gamble , Moein Shariatnia , Bradley J. Erickson

Retrieval augmented generation mitigates limitations of large language models in factual consistency and knowledge updating by introducing external knowledge. However, practical applications still suffer from semantic misalignment between…

Computation and Language · Computer Science 2026-03-06 Xin Chen , Saili Uday Gadgil , Jiarong Qiu

Recently machine learning is being applied to almost every data domain one of which is Question Answering Systems (QAS). A typical Question Answering System is fairly an information retrieval system, which matches documents or text and…

Information Retrieval · Computer Science 2019-10-08 Muhammad Zain Amin , Noman Nadeem

Convolutional neural networks (CNNs) have been successfully applied to solve the problem of correspondence estimation between semantically related images. Due to non-availability of large training datasets, existing methods resort to…

Computer Vision and Pattern Recognition · Computer Science 2019-01-25 Zakaria Laskar , Juho Kannala

Graph processes exhibit a temporal structure determined by the sequence index and and a spatial structure determined by the graph support. To learn from graph processes, an information processing architecture must then be able to exploit…

Signal Processing · Electrical Eng. & Systems 2020-12-02 Luana Ruiz , Fernando Gama , Alejandro Ribeiro