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Existing neural semantic parsers mainly utilize a sequence encoder, i.e., a sequential LSTM, to extract word order features while neglecting other valuable syntactic information such as dependency graph or constituent trees. In this paper,…

Computation and Language · Computer Science 2018-08-24 Kun Xu , Lingfei Wu , Zhiguo Wang , Mo Yu , Liwei Chen , Vadim Sheinin

Text-to-SQL aims to generate an executable SQL program given the user utterance and the corresponding database schema. To ensure the well-formedness of output SQLs, one prominent approach adopts a grammar-based recurrent decoder to produce…

Computation and Language · Computer Science 2023-10-31 Ruisheng Cao , Hanchong Zhang , Hongshen Xu , Jieyu Li , Da Ma , Lu Chen , Kai Yu

Recently, large language models (LLMs) have significantly improved the performance of text-to-SQL systems. Nevertheless, many state-of-the-art (SOTA) approaches have overlooked the critical aspect of system robustness. Our experiments…

Computation and Language · Computer Science 2024-12-18 Geling Liu , Yunzhi Tan , Ruichao Zhong , Yuanzhen Xie , Lingchen Zhao , Qian Wang , Bo Hu , Zang Li

Although Transformers-based architectures excel at processing textual information, their naive adaptation for tabular data often involves flattening the table structure. This simplification can lead to the loss of essential…

Computation and Language · Computer Science 2025-03-04 Raphaël Mouravieff , Benjamin Piwowarski , Sylvain Lamprier

Learning to capture text-table alignment is essential for tasks like text-to-SQL. A model needs to correctly recognize natural language references to columns and values and to ground them in the given database schema. In this paper, we…

Computation and Language · Computer Science 2022-09-01 Xiang Deng , Ahmed Hassan Awadallah , Christopher Meek , Oleksandr Polozov , Huan Sun , Matthew Richardson

The celebrated Seq2Seq technique and its numerous variants achieve excellent performance on many tasks such as neural machine translation, semantic parsing, and math word problem solving. However, these models either only consider input…

Computation and Language · Computer Science 2020-10-07 Shucheng Li , Lingfei Wu , Shiwei Feng , Fangli Xu , Fengyuan Xu , Sheng Zhong

Knowledge graphs represent complex data using nodes, relationships, and properties. Cypher, a powerful query language for graph databases, enables efficient modeling and querying. Recent advancements in large language models allow…

Databases · Computer Science 2025-09-05 Makbule Gulcin Ozsoy

Many NLP applications can be framed as a graph-to-sequence learning problem. Previous work proposing neural architectures on this setting obtained promising results compared to grammar-based approaches but still rely on linearisation…

Computation and Language · Computer Science 2018-06-27 Daniel Beck , Gholamreza Haffari , Trevor Cohn

General treebank analyses are graph structured, but parsers are typically restricted to tree structures for efficiency and modeling reasons. We propose a new representation and algorithm for a class of graph structures that is flexible…

Computation and Language · Computer Science 2020-06-05 Jonathan K. Kummerfeld , Dan Klein

Text-to-SQL is a technology that converts natural language queries into the structured query language SQL. A novel research approach that has recently gained attention focuses on methods based on the complexity of SQL queries, achieving…

Computation and Language · Computer Science 2024-06-14 Jiawen Yi , Guo Chen , Zixiang Shen

The most approaches to Knowledge Base Question Answering are based on semantic parsing. In this paper, we address the problem of learning vector representations for complex semantic parses that consist of multiple entities and relations.…

Computation and Language · Computer Science 2018-08-14 Daniil Sorokin , Iryna Gurevych

Text-to-SQL is emerging as a practical interface for real world databases. The dominant paradigm for Text-to-SQL is cross-database or schema-independent, supporting application schemas unseen during training. The schema of a database…

Discourse representation tree structure (DRTS) parsing is a novel semantic parsing task which has been concerned most recently. State-of-the-art performance can be achieved by a neural sequence-to-sequence model, treating the tree…

Computation and Language · Computer Science 2020-05-15 Qiankun Fu , Yue Zhang , Jiangming Liu , Meishan Zhang

There are many recent advanced developments for the Text-to-SQL task, where the Picard model is one of the the top performing models as measured by the Spider dataset competition. However, bringing Text-to-SQL systems to realistic use-cases…

Computation and Language · Computer Science 2023-12-12 Irene Manotas , Octavian Popescu , Ngoc Phuoc An Vo , Vadim Sheinin

To access data stored in relational databases, users need to understand the database schema and write a query using a query language such as SQL. To simplify this task, text-to-SQL models attempt to translate a user's natural language…

Computation and Language · Computer Science 2020-11-05 Amol Kelkar , Rohan Relan , Vaishali Bhardwaj , Saurabh Vaichal , Chandra Khatri , Peter Relan

The Transformer architecture has become a dominant choice in many domains, such as natural language processing and computer vision. Yet, it has not achieved competitive performance on popular leaderboards of graph-level prediction compared…

Machine Learning · Computer Science 2021-11-25 Chengxuan Ying , Tianle Cai , Shengjie Luo , Shuxin Zheng , Guolin Ke , Di He , Yanming Shen , Tie-Yan Liu

In text-to-SQL task, seq-to-seq models often lead to sub-optimal performance due to limitations in their architecture. In this paper, we present a simple yet effective approach that adapts transformer-based seq-to-seq model to robust…

Computation and Language · Computer Science 2023-01-31 Kuan Xu , Yongbo Wang , Yongliang Wang , Zujie Wen , Yang Dong

Natural Language to SQL systems (NL-to-SQL) have recently shown a significant increase in accuracy for natural language to SQL query translation. This improvement is due to the emergence of transformer-based language models, and the…

In Natural Language Processing (NLP), one of the most important tasks is text-to-SQL semantic parsing, which focuses on enabling users to interact with the database in a more natural manner. In recent years, text-to-SQL has made significant…

Computation and Language · Computer Science 2024-02-26 Saleh Almohaimeed , Saad Almohaimeed , Mansour Al Ghanim , Liqiang Wang

Encoder-decoder architectures are prominent building blocks of state-of-the-art solutions for tasks across multiple fields where deep learning (DL) or foundation models play a key role. Although there is a growing community working on the…

Machine Learning · Computer Science 2022-10-14 Breno W. Carvalho , Artur D'Avilla Garcez , Luis C. Lamb