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We introduce RandAR, a decoder-only visual autoregressive (AR) model capable of generating images in arbitrary token orders. Unlike previous decoder-only AR models that rely on a predefined generation order, RandAR removes this inductive…

Computer Vision and Pattern Recognition · Computer Science 2025-07-09 Ziqi Pang , Tianyuan Zhang , Fujun Luan , Yunze Man , Hao Tan , Kai Zhang , William T. Freeman , Yu-Xiong Wang

Retrieval-Augmented Generation (RAG) has significantly enhanced Large Language Models' ability to access external knowledge, yet current graph-based RAG approaches face two critical limitations in managing hierarchical information: they…

Artificial Intelligence · Computer Science 2026-01-09 Chunyu Wei , Huaiyu Qin , Siyuan He , Yunhai Wang , Yueguo Chen

We analyze various methods for single-label and multi-label text classification across well-known datasets, categorizing them into bag-of-words, sequence-based, graph-based, and hierarchical approaches. Despite the surge in methods like…

Computation and Language · Computer Science 2025-01-22 Lukas Galke , Ansgar Scherp , Andor Diera , Fabian Karl , Bao Xin Lin , Bhakti Khera , Tim Meuser , Tushar Singhal

Deep neural networks often under-perform on tabular data due to their sensitivity to irrelevant features and a spectral bias toward smooth, low-frequency functions. These limitations hinder their ability to capture the sharp, high-frequency…

Machine Learning · Computer Science 2025-11-11 Erel Naor , Ofir Lindenbaum

Decoder-only language models, such as GPT and LLaMA, generally decode on the last layer. Motivated by human's hierarchical thinking capability, we propose that a hierarchical decoder architecture could be built with different layers…

Computation and Language · Computer Science 2025-09-30 Yihong Wang , Zhonglin Jiang , Ningyuan Xi , Yue Zhao , Qingqing Gu , Xiyuan Chen , Hao Wu , Sheng Xu , Hange Zhou , Yong Chen , Luo Ji

Handwritten Mathematical Expression Recognition (HMER) has extensive applications in automated grading and office automation. However, existing sequence-based decoding methods, which directly predict $\LaTeX$ sequences, struggle to…

Computer Vision and Pattern Recognition · Computer Science 2024-12-12 Jianhua Zhu , Wenqi Zhao , Yu Li , Xingjian Hu , Liangcai Gao

Hierarchical Text Classification (HTC) is a challenging task where a document can be assigned to multiple hierarchically structured categories within a taxonomy. The majority of prior studies consider HTC as a flat multi-label…

Computation and Language · Computer Science 2022-04-20 Chao Yu , Yi Shen , Yue Mao , Longjun Cai

We propose a multi-layer variational autoencoder method, we call HR-VQVAE, that learns hierarchical discrete representations of the data. By utilizing a novel objective function, each layer in HR-VQVAE learns a discrete representation of…

Computer Vision and Pattern Recognition · Computer Science 2022-08-10 Mohammad Adiban , Kalin Stefanov , Sabato Marco Siniscalchi , Giampiero Salvi

Most existing audio-text retrieval (ATR) approaches typically rely on a single-level interaction to associate audio and text, limiting their ability to align different modalities and leading to suboptimal matches. In this work, we present a…

Sound · Computer Science 2025-05-06 Yifei Xin , Zhihong Zhu , Xuxin Cheng , Xusheng Yang , Yuexian Zou

State-of-the-art handwritten text recognition (HTR) systems commonly use Transformers, whose growing key-value (KV) cache makes decoding slow and memory-intensive. We introduce DRetHTR, a decoder-only model built on Retentive Networks…

Computer Vision and Pattern Recognition · Computer Science 2026-02-20 Changhun Kim , Martin Mayr , Thomas Gorges , Fei Wu , Mathias Seuret , Andreas Maier , Vincent Christlein

In this paper, we propose a novel way of addressing text-dependent automatic speaker verification (TD-ASV) by using a shared-encoder with task-specific decoders. An autoregressive predictive coding (APC) encoder is pre-trained in an…

Audio and Speech Processing · Electrical Eng. & Systems 2020-08-11 Vijay Ravi , Ruchao Fan , Amber Afshan , Huanhua Lu , Abeer Alwan

Extracting tables from documents is a critical task across various industries, especially on business documents like invoices and reports. Existing systems based on DEtection TRansformer (DETR) such as TAble TRansformer (TATR), offer…

Computer Vision and Pattern Recognition · Computer Science 2025-02-25 Eliott Thomas , Mickael Coustaty , Aurelie Joseph , Gaspar Deloin , Elodie Carel , Vincent Poulain D'Andecy , Jean-Marc Ogier

BERT, which stands for Bidirectional Encoder Representations from Transformers, is a recently introduced language representation model based upon the transfer learning paradigm. We extend its fine-tuning procedure to address one of its…

Computation and Language · Computer Science 2019-10-25 Raghavendra Pappagari , Piotr Żelasko , Jesús Villalba , Yishay Carmiel , Najim Dehak

Fine-grained remote sensing datasets often use hierarchical label structures to differentiate objects in a coarse-to-fine manner, with each object annotated across multiple levels. However, embedding this semantic hierarchy into the…

Computer Vision and Pattern Recognition · Computer Science 2026-01-01 Jingzhou Chen , Dexin Chen , Fengchao Xiong , Yuntao Qian , Liang Xiao

Standard methods for multi-label text classification largely rely on encoder-only pre-trained language models, whereas encoder-decoder models have proven more effective in other classification tasks. In this study, we compare four methods…

Computation and Language · Computer Science 2023-05-10 Yova Kementchedjhieva , Ilias Chalkidis

Pre-trained transformer models such as BERT have shown massive gains across many text classification tasks. However, these models usually need enormous labeled data to achieve impressive performances. Obtaining labeled data is often…

Computation and Language · Computer Science 2025-01-15 Rohit Sharma , Shanu Kumar , Avinash Kumar

Transcribing structured data into natural language descriptions has emerged as a challenging task, referred to as "data-to-text". These structures generally regroup multiple elements, as well as their attributes. Most attempts rely on…

Computation and Language · Computer Science 2019-12-23 Clément Rebuffel , Laure Soulier , Geoffrey Scoutheeten , Patrick Gallinari

This paper presents CAALM-TC (Combining Autoregressive and Autoencoder Language Models for Text Classification), a novel method that enhances text classification by integrating autoregressive and autoencoder language models. Autoregressive…

Computation and Language · Computer Science 2024-12-09 João Gonçalves

Most existing cross-modal retrieval methods employ two-stream encoders with different architectures for images and texts, \textit{e.g.}, CNN for images and RNN/Transformer for texts. Such discrepancy in architectures may induce different…

Computer Vision and Pattern Recognition · Computer Science 2023-08-09 Yi Bin , Haoxuan Li , Yahui Xu , Xing Xu , Yang Yang , Heng Tao Shen

Nowadays, scene text recognition has attracted more and more attention due to its diverse applications. Most state-of-the-art methods adopt an encoder-decoder framework with the attention mechanism, autoregressively generating text from…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Xiaomeng Yang , Zhi Qiao , Yu Zhou