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相关论文: Algorithms for Rewriting Aggregate Queries Using V…

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Retrieval-Augmented Generation (RAG) enhances the factuality of Large Language Models (LLMs) by incorporating retrieved documents and/or generated context. However, LLMs often exhibit a stylistic bias when presented with mixed contexts,…

计算与语言 · 计算机科学 2026-04-21 Jiaang Li , Zhendong Mao , Quan Wang , Yuning Wan , Yongdong Zhang

Review-based Product Question Answering (PQA) allows e-commerce platforms to automatically address customer queries by leveraging insights from user reviews. However, existing PQA systems generate answers with only a single perspective,…

计算与语言 · 计算机科学 2025-06-05 An Quang Tang , Xiuzhen Zhang , Minh Ngoc Dinh , Zhuang Li

Rewriting is a common approach to logic optimization based on local transformations. Most commercially available logic synthesis tools include a rewriting engine that may be used multiple times on the same netlist during optimization. This…

计算机科学中的逻辑 · 计算机科学 2011-08-19 Nan Li , Elena Dubrova

One of the most pressing issues that have arisen due to the rapid growth of the Internet is known as information overloading. Simplifying the relevant information in the form of a summary will assist many people because the material on any…

计算与语言 · 计算机科学 2022-04-06 Divakar Yadav , Jalpa Desai , Arun Kumar Yadav

We present a system for summarization and interactive exploration of high-valued aggregate query answers to make a large set of possible answers more informative to the user. Our system outputs a set of clusters on the high-valued query…

数据库 · 计算机科学 2018-08-01 Yuhao Wen , Xiaodan Zhu , Sudeepa Roy , Jun Yang

Ranked enumeration is a query-answering paradigm where the query answers are returned incrementally in order of importance (instead of returning all answers at once). Importance is defined by a ranking function that can be specific to the…

数据库 · 计算机科学 2025-02-07 Nikolaos Tziavelis , Wolfgang Gatterbauer , Mirek Riedewald

Nowadays, parallel computing is ubiquitous in several application fields, both in engineering and science. The computations rely on the floating-point arithmetic specified by the IEEE754 Standard. In this context, an elementary brick of…

计算与语言 · 计算机科学 2022-05-12 Farah Benmouhoub , Pierre-Loïc Garoche , Matthieu Martel

Rewriting is a common procedure in logic synthesis aimed at improving the performance, power, and area (PPA) of circuits. The traditional reconvergence-driven And-Inverter Graph (AIG) rewriting method focuses solely on optimizing the…

人工智能 · 计算机科学 2023-12-25 Liwei Ni , Zonglin Yang , Jiaxi Zhang , Junfeng Liu , Huawei Li , Biwei Xie , Xinquan Li

SQL query performance is critical in database applications, and query rewriting is a technique that transforms an original query into an equivalent query with a better performance. In a wide range of database-supported systems, there is a…

数据库 · 计算机科学 2023-05-16 Qiushi Bai , Sadeem Alsudais , Chen Li

Summarizing lengthy documents is a common and essential task in our daily lives. Although recent advancements in neural summarization models can assist in crafting general-purpose summaries, human writers often have specific requirements…

计算与语言 · 计算机科学 2023-06-06 Yujia Xie , Xun Wang , Si-Qing Chen , Wayne Xiong , Pengcheng He

When complex SQL queries suffer slow executions despite query optimization, DBAs typically invoke automated query rewriting tools to recommend ``lean'' equivalents that are conducive to faster execution. The rewritings are usually achieved…

数据库 · 计算机科学 2025-09-03 Sriram Dharwada , Himanshu Devrani , Jayant Haritsa , Harish Doraiswamy

The rewriting method for text summarization combines extractive and abstractive approaches, improving the conciseness and readability of extractive summaries using an abstractive model. Exiting rewriting systems take each extractive…

计算与语言 · 计算机科学 2022-07-14 Guangsheng Bao , Yue Zhang

Queries with aggregation and arithmetic operations, as well as incomplete data, are common in real-world database, but we lack a good understanding of how they should interact. On the one hand, systems based on SQL provide ad-hoc rules for…

数据库 · 计算机科学 2022-11-02 Marco Console , Leonid Libkin , Liat Peterfreund

Keyword search against structured databases has become a popular topic of investigation, since many users find structured queries too hard to express, and enjoy the freedom of a ``Google-like'' query box into which search terms can be…

数据库 · 计算机科学 2009-09-15 Arnab Nandi , H V Jagadish

Existing summarization systems mostly generate summaries purely relying on the content of the source document. However, even for humans, we usually need some references or exemplars to help us fully understand the source document and write…

计算与语言 · 计算机科学 2021-12-14 Chenxin An , Ming Zhong , Zhichao Geng , Jianqiang Yang , Xipeng Qiu

As Large Language Models (LLMs) and Retrieval Augmentation Generation (RAG) techniques have evolved, query rewriting has been widely incorporated into the RAG system for downstream tasks like open-domain QA. Many works have attempted to…

计算与语言 · 计算机科学 2024-05-24 Shengyu Mao , Yong Jiang , Boli Chen , Xiao Li , Peng Wang , Xinyu Wang , Pengjun Xie , Fei Huang , Huajun Chen , Ningyu Zhang

We study in this paper provenance information for queries with aggregation. Provenance information was studied in the context of various query languages that do not allow for aggregation, and recent work has suggested to capture provenance…

数据库 · 计算机科学 2015-03-17 Yael Amsterdamer , Daniel Deutch , Val Tannen

Evaluating the relational join is one of the central algorithmic and most well-studied problems in database systems. A staggering number of variants have been considered including Block-Nested loop join, Hash-Join, Grace, Sort-merge for…

数据库 · 计算机科学 2013-10-17 Hung Q. Ngo , Christopher Re , Atri Rudra

The use of aggregates in recursion enables efficient and scalable support for a wide range of BigData algorithms, including those used in graph applications, KDD applications, and ML applications, which have proven difficult to be expressed…

数据库 · 计算机科学 2019-10-22 Carlo Zaniolo , Ariyam Das , Jiaqi Gu , Youfu Li , Mingda li , Jin Wang

We develop a multiset query and update language executable in a term rewriting system. Its most remarkable feature, besides non-standard approach to quantification and introduction of fresh values, is non-determinism - a query result is not…

计算机科学中的逻辑 · 计算机科学 2023-06-22 Bartosz Zielinski