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EDSUCh:A robust ensemble data summarization method for effective medical diagnosis
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作者 Mohiuddin Ahmed A.N.M.Bazlur Rashid 《Digital Communications and Networks》 SCIE CSCD 2024年第1期182-189,共8页
Identifying rare patterns for medical diagnosis is a challenging task due to heterogeneity and the volume of data.Data summarization can create a concise version of the original data that can be used for effective dia... Identifying rare patterns for medical diagnosis is a challenging task due to heterogeneity and the volume of data.Data summarization can create a concise version of the original data that can be used for effective diagnosis.In this paper,we propose an ensemble summarization method that combines clustering and sampling to create a summary of the original data to ensure the inclusion of rare patterns.To the best of our knowledge,there has been no such technique available to augment the performance of anomaly detection techniques and simultaneously increase the efficiency of medical diagnosis.The performance of popular anomaly detection algorithms increases significantly in terms of accuracy and computational complexity when the summaries are used.Therefore,the medical diagnosis becomes more effective,and our experimental results reflect that the combination of the proposed summarization scheme and all underlying algorithms used in this paper outperforms the most popular anomaly detection techniques. 展开更多
关键词 Data summarization ENSEMBLE Medical diagnosis Sampling
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Video Summarization Approach Based on Binary Robust Invariant Scalable Keypoints and Bisecting K-Means
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作者 Sameh Zarif Eman Morad +3 位作者 Khalid Amin Abdullah Alharbi Wail S.Elkilani Shouze Tang 《Computers, Materials & Continua》 SCIE EI 2024年第3期3565-3583,共19页
Due to the exponential growth of video data,aided by rapid advancements in multimedia technologies.It became difficult for the user to obtain information from a large video series.The process of providing an abstract ... Due to the exponential growth of video data,aided by rapid advancements in multimedia technologies.It became difficult for the user to obtain information from a large video series.The process of providing an abstract of the entire video that includes the most representative frames is known as static video summarization.This method resulted in rapid exploration,indexing,and retrieval of massive video libraries.We propose a framework for static video summary based on a Binary Robust Invariant Scalable Keypoint(BRISK)and bisecting K-means clustering algorithm.The current method effectively recognizes relevant frames using BRISK by extracting keypoints and the descriptors from video sequences.The video frames’BRISK features are clustered using a bisecting K-means,and the keyframe is determined by selecting the frame that is most near the cluster center.Without applying any clustering parameters,the appropriate clusters number is determined using the silhouette coefficient.Experiments were carried out on a publicly available open video project(OVP)dataset that contained videos of different genres.The proposed method’s effectiveness is compared to existing methods using a variety of evaluation metrics,and the proposed method achieves a trade-off between computational cost and quality. 展开更多
关键词 BRISK bisecting K-mean video summarization keyframe extraction shot detection
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Adaptive Graph Convolutional Adjacency Matrix Network for Video Summarization
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作者 Jing Zhang Guangli Wu Shanshan Song 《Computers, Materials & Continua》 SCIE EI 2024年第8期1947-1965,共19页
Video summarization aims to select key frames or key shots to create summaries for fast retrieval,compression,and efficient browsing of videos.Graph neural networks efficiently capture information about graph nodes an... Video summarization aims to select key frames or key shots to create summaries for fast retrieval,compression,and efficient browsing of videos.Graph neural networks efficiently capture information about graph nodes and their neighbors,but ignore the dynamic dependencies between nodes.To address this challenge,we propose an innovative Adaptive Graph Convolutional Adjacency Matrix Network(TAMGCN),leveraging the attention mechanism to dynamically adjust dependencies between graph nodes.Specifically,we first segment shots and extract features of each frame,then compute the representative features of each shot.Subsequently,we utilize the attention mechanism to dynamically adjust the adjacency matrix of the graph convolutional network to better capture the dynamic dependencies between graph nodes.Finally,we fuse temporal features extracted by Bi-directional Long Short-Term Memory network with structural features extracted by the graph convolutional network to generate high-quality summaries.Extensive experiments are conducted on two benchmark datasets,TVSum and SumMe,yielding F1-scores of 60.8%and 53.2%,respectively.Experimental results demonstrate that our method outperforms most state-of-the-art video summarization techniques. 展开更多
关键词 Attention mechanism deep learning graph neural network key-shot video summarization
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Enhanced Topic-Aware Summarization Using Statistical Graph Neural Networks
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作者 Ayesha Khaliq Salman Afsar Awan +2 位作者 Fahad Ahmad Muhammad Azam Zia Muhammad Zafar Iqbal 《Computers, Materials & Continua》 SCIE EI 2024年第8期3221-3242,共22页
The rapid expansion of online content and big data has precipitated an urgent need for efficient summarization techniques to swiftly comprehend vast textual documents without compromising their original integrity.Curr... The rapid expansion of online content and big data has precipitated an urgent need for efficient summarization techniques to swiftly comprehend vast textual documents without compromising their original integrity.Current approaches in Extractive Text Summarization(ETS)leverage the modeling of inter-sentence relationships,a task of paramount importance in producing coherent summaries.This study introduces an innovative model that integrates Graph Attention Networks(GATs)with Transformer-based Bidirectional Encoder Representa-tions from Transformers(BERT)and Latent Dirichlet Allocation(LDA),further enhanced by Term Frequency-Inverse Document Frequency(TF-IDF)values,to improve sentence selection by capturing comprehensive topical information.Our approach constructs a graph with nodes representing sentences,words,and topics,thereby elevating the interconnectivity and enabling a more refined understanding of text structures.This model is stretched to Multi-Document Summarization(MDS)from Single-Document Summarization,offering significant improvements over existing models such as THGS-GMM and Topic-GraphSum,as demonstrated by empirical evaluations on benchmark news datasets like Cable News Network(CNN)/Daily Mail(DM)and Multi-News.The results consistently demonstrate superior performance,showcasing the model’s robustness in handling complex summarization tasks across single and multi-document contexts.This research not only advances the integration of BERT and LDA within a GATs but also emphasizes our model’s capacity to effectively manage global information and adapt to diverse summarization challenges. 展开更多
关键词 summarIZATION graph attention network bidirectional encoder representations from transformers Latent Dirichlet Allocation term frequency-inverse document frequency
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TG-SMR:AText Summarization Algorithm Based on Topic and Graph Models 被引量:1
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作者 Mohamed Ali Rakrouki Nawaf Alharbe +1 位作者 Mashael Khayyat Abeer Aljohani 《Computer Systems Science & Engineering》 SCIE EI 2023年第4期395-408,共14页
Recently,automation is considered vital in most fields since computing methods have a significant role in facilitating work such as automatic text summarization.However,most of the computing methods that are used in r... Recently,automation is considered vital in most fields since computing methods have a significant role in facilitating work such as automatic text summarization.However,most of the computing methods that are used in real systems are based on graph models,which are characterized by their simplicity and stability.Thus,this paper proposes an improved extractive text summarization algorithm based on both topic and graph models.The methodology of this work consists of two stages.First,the well-known TextRank algorithm is analyzed and its shortcomings are investigated.Then,an improved method is proposed with a new computational model of sentence weights.The experimental results were carried out on standard DUC2004 and DUC2006 datasets and compared to four text summarization methods.Finally,through experiments on the DUC2004 and DUC2006 datasets,our proposed improved graph model algorithm TG-SMR(Topic Graph-Summarizer)is compared to other text summarization systems.The experimental results prove that the proposed TG-SMR algorithm achieves higher ROUGE scores.It is foreseen that the TG-SMR algorithm will open a new horizon that concerns the performance of ROUGE evaluation indicators. 展开更多
关键词 Natural language processing text summarization graph model topic model
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Construction of an Automatic Bengali Text Summarizer Using Machine Learning Approaches
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作者 Busrat Jahan Mahfuja Khatun +2 位作者 Zinat Ara Zabu Afranul Hoque Sayed Uddin Rayhan 《Journal of Data Analysis and Information Processing》 2022年第1期43-57,共15页
In our study, we chose python as the programming platform for finding an Automatic Bengali Document Summarizer. English has sufficient tools to process and receive summarized records. However, there is no specifically... In our study, we chose python as the programming platform for finding an Automatic Bengali Document Summarizer. English has sufficient tools to process and receive summarized records. However, there is no specifically applicable to Bengali since Bengali has a lot of ambiguity, it differs from English in terms of grammar. Afterward, this language holds an important place because this language is spoken by 26 core people all over the world. As a result, it has taken a new method to summarize Bengali documents. The proposed system has been designed by using the following stages: pre-processing the sample doc/input doc, word tagging, pronoun replacement, sentence ranking, as well as summary. Pronoun replacement has been used to reduce the incidence of swinging pronouns in the performance review. We ranked sentences based on sentence frequency, numerical figures, and pronoun replacement. Checking the similarity between two sentences in order to exclude one since it has less duplication. Hereby, we’ve taken 3000 data as input from newspaper and book documents and learned the words to be appropriate with syntax. In addition, to evaluate the performance of the designed summarizer, the design system looked at the different documents. According to the assessment method, the recall, precision, and F-score were 0.70, 0.82 and 0.74, respectively, representing 70%, 82% and 74% recall, precision, and F-score. It has been found that the proper pronoun replacement was 72%. 展开更多
关键词 Natural Language Processing Formatting Bangla Text summarizer Bengali Language Processing Word Tagging Pronoun Replacement Sentence Ranking
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Weakly Supervised Abstractive Summarization with Enhancing Factual Consistency for Chinese Complaint Reports
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作者 Ren Tao Chen Shuang 《Computers, Materials & Continua》 SCIE EI 2023年第6期6201-6217,共17页
A large variety of complaint reports reflect subjective information expressed by citizens.A key challenge of text summarization for complaint reports is to ensure the factual consistency of generated summary.Therefore... A large variety of complaint reports reflect subjective information expressed by citizens.A key challenge of text summarization for complaint reports is to ensure the factual consistency of generated summary.Therefore,in this paper,a simple and weakly supervised framework considering factual consistency is proposed to generate a summary of city-based complaint reports without pre-labeled sentences/words.Furthermore,it considers the importance of entity in complaint reports to ensure factual consistency of summary.Experimental results on the customer review datasets(Yelp and Amazon)and complaint report dataset(complaint reports of Shenyang in China)show that the proposed framework outperforms state-of-the-art approaches in ROUGE scores and human evaluation.It unveils the effectiveness of our approach to helping in dealing with complaint reports. 展开更多
关键词 Automatic summarization abstractive summarization weakly supervised training entity recognition
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A Dual Attention Encoder-Decoder Text Summarization Model
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作者 Nada Ali Hakami Hanan Ahmed Hosni Mahmoud 《Computers, Materials & Continua》 SCIE EI 2023年第2期3697-3710,共14页
A worthy text summarization should represent the fundamental content of the document.Recent studies on computerized text summarization tried to present solutions to this challenging problem.Attention models are employ... A worthy text summarization should represent the fundamental content of the document.Recent studies on computerized text summarization tried to present solutions to this challenging problem.Attention models are employed extensively in text summarization process.Classical attention techniques are utilized to acquire the context data in the decoding phase.Nevertheless,without real and efficient feature extraction,the produced summary may diverge from the core topic.In this article,we present an encoder-decoder attention system employing dual attention mechanism.In the dual attention mechanism,the attention algorithm gathers main data from the encoder side.In the dual attentionmodel,the system can capture and producemore rational main content.The merging of the two attention phases produces precise and rational text summaries.The enhanced attention mechanism gives high score to text repetition to increase phrase score.It also captures the relationship between phrases and the title giving them higher score.We assessed our proposed model with or without significance optimization using ablation procedure.Our model with significance optimization achieved the highest performance of 96.7%precision and the least CPU time among other models in both training and sentence extraction. 展开更多
关键词 Text summarization attention model phrase significance
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An Efficient Long Short-Term Memory Model for Digital Cross-Language Summarization
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作者 Y.C.A.Padmanabha Reddy Shyam Sunder Reddy Kasireddy +2 位作者 Nageswara Rao Sirisala Ramu Kuchipudi Purnachand Kollapudi 《Computers, Materials & Continua》 SCIE EI 2023年第3期6389-6409,共21页
The rise of social networking enables the development of multilingual Internet-accessible digital documents in several languages.The digital document needs to be evaluated physically through the Cross-Language Text Su... The rise of social networking enables the development of multilingual Internet-accessible digital documents in several languages.The digital document needs to be evaluated physically through the Cross-Language Text Summarization(CLTS)involved in the disparate and generation of the source documents.Cross-language document processing is involved in the generation of documents from disparate language sources toward targeted documents.The digital documents need to be processed with the contextual semantic data with the decoding scheme.This paper presented a multilingual crosslanguage processing of the documents with the abstractive and summarising of the documents.The proposed model is represented as the Hidden Markov Model LSTM Reinforcement Learning(HMMlstmRL).First,the developed model uses the Hidden Markov model for the computation of keywords in the cross-language words for the clustering.In the second stage,bi-directional long-short-term memory networks are used for key word extraction in the cross-language process.Finally,the proposed HMMlstmRL uses the voting concept in reinforcement learning for the identification and extraction of the keywords.The performance of the proposed HMMlstmRL is 2%better than that of the conventional bi-direction LSTM model. 展开更多
关键词 Text summarization reinforcement learning hidden markov model CROSS-LANGUAGE MULTILINGUAL
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Topic-Aware Abstractive Summarization Based on Heterogeneous Graph Attention Networks for Chinese Complaint Reports
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作者 Yan Li Xiaoguang Zhang +4 位作者 Tianyu Gong Qi Dong Hailong Zhu Tianqiang Zhang Yanji Jiang 《Computers, Materials & Continua》 SCIE EI 2023年第9期3691-3705,共15页
Automatic text summarization(ATS)plays a significant role in Natural Language Processing(NLP).Abstractive summarization produces summaries by identifying and compressing the most important information in a document.Ho... Automatic text summarization(ATS)plays a significant role in Natural Language Processing(NLP).Abstractive summarization produces summaries by identifying and compressing the most important information in a document.However,there are only relatively several comprehensively evaluated abstractive summarization models that work well for specific types of reports due to their unstructured and oral language text characteristics.In particular,Chinese complaint reports,generated by urban complainers and collected by government employees,describe existing resident problems in daily life.Meanwhile,the reflected problems are required to respond speedily.Therefore,automatic summarization tasks for these reports have been developed.However,similar to traditional summarization models,the generated summaries still exist problems of informativeness and conciseness.To address these issues and generate suitably informative and less redundant summaries,a topic-based abstractive summarization method is proposed to obtain global and local features.Additionally,a heterogeneous graph of the original document is constructed using word-level and topic-level features.Experiments and analyses on public review datasets(Yelp and Amazon)and our constructed dataset(Chinese complaint reports)show that the proposed framework effectively improves the performance of the abstractive summarization model for Chinese complaint reports. 展开更多
关键词 Text summarization TOPIC Chinese complaint report heterogeneous graph attention network
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Applied Linguistics with Mixed Leader Optimizer Based English Text Summarization Model
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作者 Hala J.Alshahrani Khaled Tarmissi +5 位作者 Ayman Yafoz Abdullah Mohamed Manar Ahmed Hamza Ishfaq Yaseen Abu Sarwar Zamani Mohammad Mahzari 《Intelligent Automation & Soft Computing》 SCIE 2023年第6期3203-3219,共17页
The term‘executed linguistics’corresponds to an interdisciplinary domain in which the solutions are identified and provided for real-time language-related problems.The exponential generation of text data on the Inte... The term‘executed linguistics’corresponds to an interdisciplinary domain in which the solutions are identified and provided for real-time language-related problems.The exponential generation of text data on the Internet must be leveraged to gain knowledgeable insights.The extraction of meaningful insights from text data is crucial since it can provide value-added solutions for business organizations and end-users.The Automatic Text Summarization(ATS)process reduces the primary size of the text without losing any basic components of the data.The current study introduces an Applied Linguistics-based English Text Summarization using a Mixed Leader-Based Optimizer with Deep Learning(ALTS-MLODL)model.The presented ALTS-MLODL technique aims to summarize the text documents in the English language.To accomplish this objective,the proposed ALTS-MLODL technique pre-processes the input documents and primarily extracts a set of features.Next,the MLO algorithm is used for the effectual selection of the extracted features.For the text summarization process,the Cascaded Recurrent Neural Network(CRNN)model is exploited whereas the Whale Optimization Algorithm(WOA)is used as a hyperparameter optimizer.The exploitation of the MLO-based feature selection and the WOA-based hyper-parameter tuning enhanced the summarization results.To validate the perfor-mance of the ALTS-MLODL technique,numerous simulation analyses were conducted.The experimental results signify the superiority of the proposed ALTS-MLODL technique over other approaches. 展开更多
关键词 Text summarization deep learning hyperparameter tuning applied linguistics multi-leader optimizer
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Graph Ranked Clustering Based Biomedical Text Summarization Using Top k Similarity
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作者 Supriya Gupta Aakanksha Sharaff Naresh Kumar Nagwani 《Computer Systems Science & Engineering》 SCIE EI 2023年第6期2333-2349,共17页
Text Summarization models facilitate biomedical clinicians and researchers in acquiring informative data from enormous domain-specific literature within less time and effort.Evaluating and selecting the most informati... Text Summarization models facilitate biomedical clinicians and researchers in acquiring informative data from enormous domain-specific literature within less time and effort.Evaluating and selecting the most informative sentences from biomedical articles is always challenging.This study aims to develop a dual-mode biomedical text summarization model to achieve enhanced coverage and information.The research also includes checking the fitment of appropriate graph ranking techniques for improved performance of the summarization model.The input biomedical text is mapped as a graph where meaningful sentences are evaluated as the central node and the critical associations between them.The proposed framework utilizes the top k similarity technique in a combination of UMLS and a sampled probability-based clustering method which aids in unearthing relevant meanings of the biomedical domain-specific word vectors and finding the best possible associations between crucial sentences.The quality of the framework is assessed via different parameters like information retention,coverage,readability,cohesion,and ROUGE scores in clustering and non-clustering modes.The significant benefits of the suggested technique are capturing crucial biomedical information with increased coverage and reasonable memory consumption.The configurable settings of combined parameters reduce execution time,enhance memory utilization,and extract relevant information outperforming other biomedical baseline models.An improvement of 17%is achieved when the proposed model is checked against similar biomedical text summarizers. 展开更多
关键词 Biomedical text summarization UMLS BioBERT SDPMM clustering top K similarity PPF HITS page rank graph ranking
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An Efficient Method for Underwater Video Summarization and Object Detection Using YoLoV3
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作者 Mubashir Javaid Muazzam Maqsood +2 位作者 Farhan Aadil Jibran Safdar Yongsung Kim 《Intelligent Automation & Soft Computing》 SCIE 2023年第2期1295-1310,共16页
Currently,worldwide industries and communities are concerned with building,expanding,and exploring the assets and resources found in the oceans and seas.More precisely,to analyze a stock,archaeology,and surveillance,s... Currently,worldwide industries and communities are concerned with building,expanding,and exploring the assets and resources found in the oceans and seas.More precisely,to analyze a stock,archaeology,and surveillance,sev-eral cameras are installed underseas to collect videos.However,on the other hand,these large size videos require a lot of time and memory for their processing to extract relevant information.Hence,to automate this manual procedure of video assessment,an accurate and efficient automated system is a greater necessity.From this perspective,we intend to present a complete framework solution for the task of video summarization and object detection in underwater videos.We employed a perceived motion energy(PME)method tofirst extract the keyframes followed by an object detection model approach namely YoloV3 to perform object detection in underwater videos.The issues of blurriness and low contrast in underwater images are also taken into account in the presented approach by applying the image enhancement method.Furthermore,the suggested framework of underwater video summarization and object detection has been evaluated on a publicly available brackish dataset.It is observed that the proposed framework shows good performance and hence ultimately assists several marine researchers or scientists related to thefield of underwater archaeology,stock assessment,and surveillance. 展开更多
关键词 Computer vision deep learning digital image processing underwater video analysis video summarization object detection YOLOV3
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Ext-ICAS:A Novel Self-Normalized Extractive Intra Cosine Attention Similarity Summarization
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作者 P.Sharmila C.Deisy S.Parthasarathy 《Computer Systems Science & Engineering》 SCIE EI 2023年第4期377-393,共17页
With the continuous growth of online news articles,there arises the necessity for an efficient abstractive summarization technique for the problem of information overloading.Abstractive summarization is highly complex... With the continuous growth of online news articles,there arises the necessity for an efficient abstractive summarization technique for the problem of information overloading.Abstractive summarization is highly complex and requires a deeper understanding and proper reasoning to come up with its own summary outline.Abstractive summarization task is framed as seq2seq modeling.Existing seq2seq methods perform better on short sequences;however,for long sequences,the performance degrades due to high computation and hence a two-phase self-normalized deep neural document summarization model consisting of improvised extractive cosine normalization and seq2seq abstractive phases has been proposed in this paper.The novelty is to parallelize the sequence computation training by incorporating feed-forward,the self-normalized neural network in the Extractive phase using Intra Cosine Attention Similarity(Ext-ICAS)with sentence dependency position.Also,it does not require any normalization technique explicitly.Our proposed abstractive Bidirectional Long Short Term Memory(Bi-LSTM)encoder sequence model performs better than the Bidirectional Gated Recurrent Unit(Bi-GRU)encoder with minimum training loss and with fast convergence.The proposed model was evaluated on the Cable News Network(CNN)/Daily Mail dataset and an average rouge score of 0.435 was achieved also computational training in the extractive phase was reduced by 59%with an average number of similarity computations. 展开更多
关键词 Abstractive summarization natural language processing sequence-tosequence learning(seq2seq) SELF-NORMALIZATION intra(self)attention
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A Method of Integrating Length Constraints into Encoder-Decoder Transformer for Abstractive Text Summarization
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作者 Ngoc-Khuong Nguyen Dac-Nhuong Le +1 位作者 Viet-Ha Nguyen Anh-Cuong Le 《Intelligent Automation & Soft Computing》 2023年第10期1-18,共18页
Text summarization aims to generate a concise version of the original text.The longer the summary text is,themore detailed it will be fromthe original text,and this depends on the intended use.Therefore,the problem of... Text summarization aims to generate a concise version of the original text.The longer the summary text is,themore detailed it will be fromthe original text,and this depends on the intended use.Therefore,the problem of generating summary texts with desired lengths is a vital task to put the research into practice.To solve this problem,in this paper,we propose a new method to integrate the desired length of the summarized text into the encoder-decoder model for the abstractive text summarization problem.This length parameter is integrated into the encoding phase at each self-attention step and the decoding process by preserving the remaining length for calculating headattention in the generation process and using it as length embeddings added to theword embeddings.We conducted experiments for the proposed model on the two data sets,Cable News Network(CNN)Daily and NEWSROOM,with different desired output lengths.The obtained results show the proposed model’s effectiveness compared with related studies. 展开更多
关键词 Length controllable abstractive text summarization length embedding
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Abstractive Arabic Text Summarization Using Hyperparameter Tuned Denoising Deep Neural Network
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作者 Ibrahim M.Alwayle Hala J.Alshahrani +5 位作者 Saud S.Alotaibi Khaled M.Alalayah Amira Sayed A.Aziz Khadija M.Alaidarous Ibrahim Abdulrab Ahmed Manar Ahmed Hamza 《Intelligent Automation & Soft Computing》 2023年第11期153-168,共16页
ive Arabic Text Summarization using Hyperparameter Tuned Denoising Deep Neural Network(AATS-HTDDNN)technique.The presented AATS-HTDDNN technique aims to generate summaries of Arabic text.In the presented AATS-HTDDNN t... ive Arabic Text Summarization using Hyperparameter Tuned Denoising Deep Neural Network(AATS-HTDDNN)technique.The presented AATS-HTDDNN technique aims to generate summaries of Arabic text.In the presented AATS-HTDDNN technique,the DDNN model is utilized to generate the summary.This study exploits the Chameleon Swarm Optimization(CSO)algorithm to fine-tune the hyperparameters relevant to the DDNN model since it considerably affects the summarization efficiency.This phase shows the novelty of the current study.To validate the enhanced summarization performance of the proposed AATS-HTDDNN model,a comprehensive experimental analysis was conducted.The comparison study outcomes confirmed the better performance of the AATS-HTDDNN model over other approaches. 展开更多
关键词 Text summarization deep learning denoising deep neural networks hyperparameter tuning Arabic language
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中医适宜技术在成人癌痛患者中应用的研究进展 被引量:1
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作者 楚鑫 蒋运兰 +4 位作者 程冬梅 曾维斯 吕美玲 温晓婷 王洁 《四川中医》 2024年第7期86-91,共6页
对适用于成人癌痛患者的中医适宜技术进行综述,旨在为临床开展适合癌痛患者的中医适宜技术提供参考,为后续的相关研究提供依据和方向。
关键词 癌痛 癌性疼痛 中医 中医适宜技术 综述
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耐高温丙烯酸酯压敏胶研究进展
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作者 薛刚 薛双乐 +5 位作者 张绪刚 孙明明 白雪峰 王磊 赵明 张斌 《中国胶粘剂》 CAS 2024年第3期1-7,共7页
由于丙烯酸酯压敏胶耐高温性能不足而在诸多应用领域受到限制,近年来行业中涌现了诸多通过改性提升其耐温性的研究。本文对近年来有关丙烯酸酯压敏胶耐高温改性的研究工作进行了综述,对耐高温性能的测试方法进行了汇总和比较,对交联剂... 由于丙烯酸酯压敏胶耐高温性能不足而在诸多应用领域受到限制,近年来行业中涌现了诸多通过改性提升其耐温性的研究。本文对近年来有关丙烯酸酯压敏胶耐高温改性的研究工作进行了综述,对耐高温性能的测试方法进行了汇总和比较,对交联剂及交联方式研究、有机硅改性、丙烯酰胺化合物改性、含氟化合物改性、杂环类耐热单体改性等多种改性方法进行了分析和总结。最后,对耐高温丙烯酸酯压敏胶的发展方向进行了展望。 展开更多
关键词 丙烯酸酯 压敏胶 耐高温 综述
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基于深度学习的抽取式摘要研究综述
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作者 田萱 李嘉梁 孟晓欢 《计算机科学与探索》 CSCD 北大核心 2024年第11期2823-2847,共25页
自动文本摘要(ATS)是自然语言处理的热门研究方向,主要实现方法分为抽取式和生成式两类。抽取式摘要直接采用源文档中的文字内容,相比生成式摘要具有更高的语法正确性和事实正确性,在政策解读、官方文件总结、法律和医药等要求较为严谨... 自动文本摘要(ATS)是自然语言处理的热门研究方向,主要实现方法分为抽取式和生成式两类。抽取式摘要直接采用源文档中的文字内容,相比生成式摘要具有更高的语法正确性和事实正确性,在政策解读、官方文件总结、法律和医药等要求较为严谨的领域具有广泛应用前景。目前基于深度学习的抽取式摘要研究受到广泛关注。主要梳理了近几年基于深度学习的抽取式摘要技术研究进展;针对抽取式摘要的两个关键步骤——文本单元编码和摘要抽取,分别分析了相关研究工作。根据模型框架的不同,将文本单元编码方法分为层级序列编码、基于图神经网络的编码、融合式编码和基于预训练的编码四类进行介绍;根据摘要抽取阶段抽取粒度的不同,将摘要抽取方法分为文本单元级抽取和摘要级抽取两类进行分析。介绍了抽取式摘要任务常用的公共数据集和性能评估指标。预测并分析总结了该领域未来可能的研究方向及相应的发展趋势。 展开更多
关键词 自然语言处理 神经网络 深度学习 抽取 模型框架 预训练 编码方法 融合式
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以对比学习与时序递推提升摘要泛化性的方法
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作者 汤文亮 陈帝佑 +2 位作者 桂玉杰 刘杰明 徐军亮 《重庆理工大学学报(自然科学)》 CAS 北大核心 2024年第2期170-180,共11页
为了有效缓解基于交叉熵损失函数训练的传统文本摘要模型所面临的推理过程中性能下降、泛化性较低、生成过程中曝光偏差现象严重、生成的摘要与参考摘要文本相似度较低等问题,提出了一种新颖的训练方式,一方面,模型本身以beamsearch的... 为了有效缓解基于交叉熵损失函数训练的传统文本摘要模型所面临的推理过程中性能下降、泛化性较低、生成过程中曝光偏差现象严重、生成的摘要与参考摘要文本相似度较低等问题,提出了一种新颖的训练方式,一方面,模型本身以beamsearch的方式生成候选集,以候选摘要的评估分数选取正负样本,在输出的候选集中以“argmax-贪心搜索概率值”和“标签概率值”构建2组对比损失函数;另一方面,设计作用于候选集句内的时序递推函数引导模型在输出每个单独的候选摘要时确保时序准确性,并缓解曝光偏差问题。实验表明,所提方法在CNN/DailyMail和Xsum公共数据集上的泛化性得到提升,Rouge与BertScore在CNN/DailyMail上达到47.54和88.51,在Xsum上达到了48.75和92.61。 展开更多
关键词 自然语言处理 文本摘要 对比学习 模型微调
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