Prompt Tuning on Graph-Augmented Low-Resource Text Classification

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Titel: Prompt Tuning on Graph-Augmented Low-Resource Text Classification
Autoren: Zhihao Wen, Yuan Fang
Quelle: IEEE Transactions on Knowledge and Data Engineering. 36:9080-9095
Publication Status: Preprint
Verlagsinformationen: Institute of Electrical and Electronics Engineers (IEEE), 2024.
Publikationsjahr: 2024
Schlagwörter: FOS: Computer and information sciences, Databases and Information Systems, Theory and Algorithms, graph, Tuning, Computer Science - Information Retrieval, low-resource learning Oils, Task analysis, Text classification, Ink, Text categorization, Paints, prompt, Accuracy, pre-training, Information Retrieval (cs.IR)
Beschreibung: Text classification is a fundamental problem in information retrieval with many real-world applications, such as predicting the topics of online articles and the categories of e-commerce product descriptions. However, low-resource text classification, with no or few labeled samples, presents a serious concern for supervised learning. Meanwhile, many text data are inherently grounded on a network structure, such as a hyperlink/citation network for online articles, and a user-item purchase network for e-commerce products. These graph structures capture rich semantic relationships, which can potentially augment low-resource text classification. In this paper, we propose a novel model called Graph-Grounded Pre-training and Prompting (G2P2) to address low-resource text classification in a two-pronged approach. During pre-training, we propose three graph interaction-based contrastive strategies to jointly pre-train a graph-text model; during downstream classification, we explore handcrafted discrete prompts and continuous prompt tuning for the jointly pre-trained model to achieve zero- and few-shot classification, respectively. Moreover, we explore the possibility of employing continuous prompt tuning for zero-shot inference. Specifically, we aim to generalize continuous prompts to unseen classes while leveraging a set of base classes. To this end, we extend G2P2 into G2P2$^*$, hinging on a new architecture of conditional prompt tuning. Extensive experiments on four real-world datasets demonstrate the strength of G2P2 in zero- and few-shot low-resource text classification tasks, and illustrate the advantage of G2P2$^*$ in dealing with unseen classes.
15 pages, accepted by TKDE (IEEE Transactions on Knowledge and Data Engineering). arXiv admin note: substantial text overlap with arXiv:2305.03324
Publikationsart: Article
Dateibeschreibung: application/pdf
ISSN: 2326-3865
1041-4347
DOI: 10.1109/tkde.2024.3440068
DOI: 10.48550/arxiv.2307.10230
Zugangs-URL: http://arxiv.org/abs/2307.10230
Rights: IEEE Copyright
arXiv Non-Exclusive Distribution
CC BY NC ND
Dokumentencode: edsair.doi.dedup.....d02d53bcd88e8f1ba76cf2706cd869e8
Datenbank: OpenAIRE
Beschreibung
Abstract:Text classification is a fundamental problem in information retrieval with many real-world applications, such as predicting the topics of online articles and the categories of e-commerce product descriptions. However, low-resource text classification, with no or few labeled samples, presents a serious concern for supervised learning. Meanwhile, many text data are inherently grounded on a network structure, such as a hyperlink/citation network for online articles, and a user-item purchase network for e-commerce products. These graph structures capture rich semantic relationships, which can potentially augment low-resource text classification. In this paper, we propose a novel model called Graph-Grounded Pre-training and Prompting (G2P2) to address low-resource text classification in a two-pronged approach. During pre-training, we propose three graph interaction-based contrastive strategies to jointly pre-train a graph-text model; during downstream classification, we explore handcrafted discrete prompts and continuous prompt tuning for the jointly pre-trained model to achieve zero- and few-shot classification, respectively. Moreover, we explore the possibility of employing continuous prompt tuning for zero-shot inference. Specifically, we aim to generalize continuous prompts to unseen classes while leveraging a set of base classes. To this end, we extend G2P2 into G2P2$^*$, hinging on a new architecture of conditional prompt tuning. Extensive experiments on four real-world datasets demonstrate the strength of G2P2 in zero- and few-shot low-resource text classification tasks, and illustrate the advantage of G2P2$^*$ in dealing with unseen classes.<br />15 pages, accepted by TKDE (IEEE Transactions on Knowledge and Data Engineering). arXiv admin note: substantial text overlap with arXiv:2305.03324
ISSN:23263865
10414347
DOI:10.1109/tkde.2024.3440068