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Due to flourish of the Web 2.0, web opinion sources are rapidly emerging containing precious information useful for both customers and manufactures. Recently, feature based opinion mining techniques are gaining momentum in which customer…

信息检索 · 计算机科学 2015-04-27 Ahmad Kamal

Prior-weighted logistic regression has become a standard tool for calibration in speaker recognition. Logistic regression is the optimization of the expected value of the logarithmic scoring rule. We generalize this via a parametric family…

机器学习 · 统计学 2013-07-31 Niko Brümmer , George Doddington

This paper introduces semi-ring dictionaries, a powerful class of compositional and purely functional collections that subsume other collection types such as sets, multisets, arrays, vectors, and matrices. We developed SDQL, a statically…

编程语言 · 计算机科学 2022-03-23 Amir Shaikhha , Mathieu Huot , Jaclyn Smith , Dan Olteanu

Modern knowledge base systems frequently need to combine a collection of databases in different formats: e.g., relational databases, XML databases, rule bases, ontologies, etc. In the deductive database system DDBASE, we can manage these…

数据库 · 计算机科学 2017-01-04 Dietmar Seipel

Calibration is crucial as large language models (LLMs) are increasingly deployed to convert natural language queries into SQL for commercial databases. In this work, we investigate calibration techniques for assigning confidence to…

数据库 · 计算机科学 2024-11-28 Ashwin Ramachandran , Sunita Sarawagi

Many leading classification algorithms output a classifier that is a weighted average of kernel evaluations. Optimizing these weights is a nontrivial problem that still attracts much research effort. Furthermore, explaining these methods to…

机器学习 · 统计学 2025-10-14 Brendan van Rooyen , Aditya Krishna Menon , Robert C. Williamson

Reasoning in the Semantic Web (SW) commonly uses Description Logics (DL) via OWL2 DL ontologies, or SWRL for variables and Horn clauses. The Rule Interchange Format (RIF) offers more expressive rules but is defined outside RDF and rarely…

数据库 · 计算机科学 2025-08-19 Dörthe Arndt , William Van Woensel , Dominik Tomaszuk

Training accurate classifiers requires many labels, but each label provides only limited information (one bit for binary classification). In this work, we propose BabbleLabble, a framework for training classifiers in which an annotator…

计算与语言 · 计算机科学 2018-08-28 Braden Hancock , Paroma Varma , Stephanie Wang , Martin Bringmann , Percy Liang , Christopher Ré

In this paper we study the relationship between query and search engine by exploring the selective properties based on a simple search engine. We used the set theory and utilized the words and terms for defining singleton and doubleton in…

信息检索 · 计算机科学 2013-03-19 Mahyuddin K. M. Nasution

A common approach to data analysis involves understanding and manipulating succinct representations of data. In earlier work, we put forward a succinct representation system for relational data called factorised databases and reported on…

数据库 · 计算机科学 2013-07-02 Nurzhan Bakibayev , Tomáš Kočiský , Dan Olteanu , Jakub Závodný

Many works have focused, for over twenty five years, on the integration of the time dimension in databases (DB). However, the standard SQL3 does not yet allow easy definition, manipulation and querying of temporal DBs. In this paper, we…

数据库 · 计算机科学 2011-03-04 Mohamed Mkaouar , Rafik Bouaziz , Mohamed Moalla

Rule-based models, e.g., decision trees, are widely used in scenarios demanding high model interpretability for their transparent inner structures and good model expressivity. However, rule-based models are hard to optimize, especially on…

机器学习 · 计算机科学 2021-10-01 Zhuo Wang , Wei Zhang , Ning Liu , Jianyong Wang

Table (database) / Relational database Classification for big/smart/fast data machine learning is one of the most important tasks of predictive analytics and extracting valuable information from data. It is core applied technique for what…

机器学习 · 计算机科学 2016-09-28 Sander Stepanov

Learning an explainable classifier often results in low accuracy model or ends up with a huge rule set, while learning a deep model is usually more capable of handling noisy data at scale, but with the cost of hard to explain the result and…

人工智能 · 计算机科学 2022-11-11 Yuanlong Li , Gaopan Huang , Min Zhou , Chuan Fu , Honglin Qiao , Yan He

An efficient Apriori_Goal algorithm is proposed for constructing association rules in a relational database with predefined classification. The target parameter of the database specifies a finite number of goals $Goal_k$, for each of which…

数据库 · 计算机科学 2025-02-11 Vladimir Billig

This paper presents a method for semantic indexing and describes its application in the field of knowledge representation. Starting point of the semantic indexing is the knowledge represented by concept hierarchies. The goal is to assign…

人工智能 · 计算机科学 2025-01-22 Uwe Petersohn , Sandra Zimmer , Jens Lehmann

Query containment and query answering are two important computational tasks in databases. While query answering amounts to compute the result of a query over a database, query containment is the problem of checking whether for every…

数据库 · 计算机科学 2007-05-23 Diego Calvanese , Giuseppe De Giacomo , Maurizio Lenzerini

We propose an easy-to-use methodology to allocate one of the groups which have been previously built from a complete learning data base, to new individuals. The learning data base contains continuous and categorical variables for each…

统计理论 · 数学 2016-08-14 Patrick Letrémy , Marie Cottrell , Eric Esposito , Valérie Laffite , Sally Showk

Clause Learning is one of the most important components of a conflict driven clause learning (CDCL) SAT solver that is effective on industrial instances. Since the number of learned clauses is proved to be exponential in the worse case, it…

人工智能 · 计算机科学 2017-06-01 Jerry Lonlac , Engelbert Mephu Nguifo

We propose an explainable approach for relation extraction that mitigates the tension between generalization and explainability by jointly training for the two goals. Our approach uses a multi-task learning architecture, which jointly…

计算与语言 · 计算机科学 2022-10-27 Zheng Tang , Mihai Surdeanu