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Deep LSTM is an ideal candidate for text recognition. However text recognition involves some initial image processing steps like segmentation of lines and words which can induce error to the recognition system. Without segmentation,…

计算机视觉与模式识别 · 计算机科学 2015-02-27 Anupama Ray , Sai Rajeswar , Santanu Chaudhury

Hidden Markov Model (HMM) is often regarded as the dynamical model of choice in many fields and applications. It is also at the heart of most state-of-the-art speech recognition systems since the 70's. However, from Gaussian mixture models…

计算与语言 · 计算机科学 2016-07-04 Sébastien Gagnon , Jean Rouat

Recently, the hybrid convolutional neural network hidden Markov model (CNN-HMM) has been introduced for offline handwritten Chinese text recognition (HCTR) and has achieved state-of-the-art performance. However, modeling each of the large…

计算机视觉与模式识别 · 计算机科学 2019-09-23 Zi-Rui Wang , Jun Du , Jia-Ming Wang

We consider the task of learning mappings from sequential data to real-valued responses. We present and evaluate an approach to learning a type of hidden Markov model (HMM) for regression. The learning process involves inferring the…

机器学习 · 计算机科学 2012-06-18 Keith Noto , Mark Craven

Large language models(LLMs) excel at text generation and knowledge question-answering tasks, but they are prone to generating hallucinated content, severely limiting their application in high-risk domains. Current hallucination detection…

计算与语言 · 计算机科学 2025-12-25 Shize Liang , Hongzhi Wang

Pretrained language models have achieved state-of-the-art performance when adapted to a downstream NLP task. However, theoretical analysis of these models is scarce and challenging since the pretraining and downstream tasks can be very…

机器学习 · 计算机科学 2022-04-22 Colin Wei , Sang Michael Xie , Tengyu Ma

Modern large language models (LLMs) excel at tasks that require storing and retrieving knowledge, such as factual recall and question answering. Transformers are central to this capability because they can encode information during training…

机器学习 · 统计学 2026-03-18 Nuri Mert Vural , Alberto Bietti , Mahdi Soltanolkotabi , Denny Wu

In this study, we present an innovative technique for speaker adaptation in order to improve the accuracy of segmentation with application to unit-selection Text-To-Speech (TTS) systems. Unlike conventional techniques for speaker…

音频与语音处理 · 电气工程与系统科学 2020-05-01 Claudio Zito , Fabio Tesser , Mauro Nicolao , Piero Cosi

This paper presents results of a study of the performance of several base classifiers for recognition of handwritten characters of the modern Latin alphabet. Base classification performance is further enhanced by utilizing Viterbi error…

计算机视觉与模式识别 · 计算机科学 2021-11-30 Hélder Campos , Nuno Paulino

Large Language Models (LLMs) are powerful tools for text generation, translation, and summarization, but they often suffer from hallucinations-instances where they fail to maintain the fidelity and coherence of contextual information during…

计算与语言 · 计算机科学 2024-10-29 Jiemin Wu , Songning Lai , Ruiqiang Xiao , Tianlang Xue , Jiayu Yang , Yutao Yue

With the recent proliferation of Large Language Models (LLMs), there has been an increasing demand for tools to detect machine-generated text. The effective detection of machine-generated text face two pertinent problems: First, they are…

计算与语言 · 计算机科学 2024-04-04 Mazal Bethany , Brandon Wherry , Emet Bethany , Nishant Vishwamitra , Anthony Rios , Peyman Najafirad

The rapid adoption of large language models (LLMs), such as GPT-4 and Claude 3.5, underscores the need to distinguish LLM-generated text from human-written content to mitigate the spread of misinformation and misuse in education. One…

机器学习 · 统计学 2025-11-11 Xingchi Li , Xiaochi Liu , Guanxun Li

Tokenizer is an essential component for large language models (LLMs), and a tokenizer with a high compression rate can improve the model's representation and processing efficiency. However, the tokenizer cannot ensure high compression rate…

计算与语言 · 计算机科学 2024-10-08 Shuhao Gu , Mengdi Zhao , Bowen Zhang , Liangdong Wang , Jijie Li , Guang Liu

Recently, hidden Markov models (HMMs) have achieved promising results for offline handwritten Chinese text recognition. However, due to the large vocabulary of Chinese characters with each modeled by a uniform and fixed number of hidden…

计算机视觉与模式识别 · 计算机科学 2018-08-14 Wenchao Wang , Jun Du , Zi-Rui Wang

Large Language Models (LLMs) are adept at text manipulation -- tasks such as machine translation and text summarization. However, these models can also be prone to hallucination, which can be detrimental to the faithfulness of any answers…

计算与语言 · 计算机科学 2024-04-04 Priyesh Vakharia , Devavrat Joshi , Meenal Chavan , Dhananjay Sonawane , Bhrigu Garg , Parsa Mazaheri

This paper describes the conversion of a Hidden Markov Model into a finite state transducer that closely approximates the behavior of the stochastic model. In some cases the transducer is equivalent to the HMM. This conversion is especially…

cmp-lg · 计算机科学 2007-05-23 Andre Kempe

Recently, prompt tuning \cite{lester2021power} has gradually become a new paradigm for NLP, which only depends on the representation of the words by freezing the parameters of pre-trained language models (PLMs) to obtain remarkable…

计算与语言 · 计算机科学 2022-01-31 Pan He , Yuxi Chen , Yan Wang , Yanru Zhang

Text embeddings from large language models (LLMs) have achieved excellent results in tasks such as information retrieval, semantic textual similarity, etc. In this work, we show an interesting finding: when feeding a text into the LLM-based…

计算与语言 · 计算机科学 2025-07-08 Zhijie Nie , Richong Zhang , Zhanyu Wu

Tokenization is a foundational step in the text process of Large Language Models (LLMs). Texts must be first tokenized into token IDs, which are then input to LLMs. Inefficient tokenization results in long token-ID sequences and will slow…

计算与语言 · 计算机科学 2026-05-14 Chong Li , Yingzhuo Deng , Wen Yang , Jiajun Zhang , Chengqing Zong

Natural language generation of coherent long texts like paragraphs or longer documents is a challenging problem for recurrent networks models. In this paper, we explore an important step toward this generation task: training an LSTM…

计算与语言 · 计算机科学 2015-06-09 Jiwei Li , Minh-Thang Luong , Dan Jurafsky