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In this paper, we reveal a new characterization of the super-efficiency model for Data Envelopment Analysis (DEA). In DEA, the efficiency of each decision making unit (DMU) is measured by the ratio the weighted sum of outputs divided by the…

Optimization and Control · Mathematics 2024-11-04 Tomonari Kitahara , Takashi Tsuchiya

Language Model pre-training uses broad data mixtures to enhance performance across domains and languages. However, training on such heterogeneous text corpora requires extensive and expensive efforts. Since these data sources vary…

Machine Learning · Computer Science 2025-04-08 Alex Iacob , Lorenzo Sani , Meghdad Kurmanji , William F. Shen , Xinchi Qiu , Dongqi Cai , Yan Gao , Nicholas D. Lane

The banking industry is very important for an economic cycle of each country and provides some quality of services for us. With the advancement in technology and rapidly increasing of the complexity of the business environment, it has…

Machine Learning · Computer Science 2018-10-15 Sara Hosseinzadeh Kassani , Peyman Hosseinzadeh Kassani , Seyed Esmaeel Najafi

In benchmarking, organizations look outward to examine others' performance in their industry or sector. Often, they can learn from the best practices of some of them and improve. In order to develop this idea within the framework of Data…

Optimization and Control · Mathematics 2019-12-04 Nuria Ramón , José L. Ruiz , Inmaculada Sirvent

Evaluating the efficiency of organizations and branches within an organization is a challenging issue for managers. Evaluation criteria allow organizations to rank their internal units, identify their position concerning their competitors,…

Optimization and Control · Mathematics 2022-09-13 Vahid Kayvanfar , Hamed Baziyad , Shaya Sheikh , Frank Werner

The current work proposes an application of DEA methodology for measurement of technical and allocative efficiency of university research activity. The analysis is based on bibliometric data from the Italian university system for the five…

Digital Libraries · Computer Science 2018-11-06 Giovanni Abramo , Tindaro Cicero , Ciriaco Andrea D'Angelo

The human brain represents an object by small elements and distinguishes two objects based on the difference in elements. Discovering the distinctive elements of high-dimensional datasets is therefore critical in numerous perception-driven…

Computer Vision and Pattern Recognition · Computer Science 2024-10-10 Md Tauhidul Islam , Lei Xing

In this paper we propose robust efficiency scores for the scenario in which the specification of the inputs/outputs to be included in the DEA model is modelled with a probability distribution. This proba- bilistic approach allows us to…

Optimization and Control · Mathematics 2020-01-22 Mercedes Landete , Juan F. Monge , José L. Ruiz

Data Envelopment Analysis (DEA) is a technique used to measure the efficiency of decision-making units (DMUs). In order to measure the efficiency of DMUs, the essential requirement is input-output data. Data is usually collected by humans,…

Artificial Intelligence · Computer Science 2022-08-05 Anjali Sonkariya , Awadh Pratap Singh , Shiv Prasad Yadav

In large language models built upon the Transformer architecture, recent studies have shown that inter-head interaction can enhance attention performance. Motivated by this, we propose Multi-head Explicit Attention (MEA), a simple yet…

Machine Learning · Computer Science 2026-01-28 Runyu Peng , Yunhua Zhou , Demin Song , Kai Lv , Bo Wang , Qipeng Guo , Xipeng Qiu

Applications of data envelopment analysis (DEA) show that many inefficient units are projected onto the weakly efficient parts of the frontier when efficiency scores are computed. However this fact disagrees with the main concept of the DEA…

Optimization and Control · Mathematics 2018-04-16 Vladimir E. Krivonozhko , Finn R. Førsund , Andrey V. Lychev

Reducing the computational time to process large data sets in Data Envelopment Analysis (DEA) is the objective of many studies. Contributions include fundamentally innovative procedures, new or improved preprocessors, and hybridization…

Optimization and Control · Mathematics 2024-07-23 Gregory Koronakos , Jose H Dula , Dimitris K Despotis

Sufficient numbers of Decision Making Units (DMUs) in comparison with the number of input and output variables has been a concern of using Data Envelopment Analysis (DEA) in the last three decades. There are several studies in the…

Optimization and Control · Mathematics 2015-03-17 Dariush Khezrimotlagh

Deep learning-based speech enhancement (SE) models have achieved impressive performance in the past decade. Numerous advanced architectures have been designed to deliver state-of-the-art performance; however, their scalability potential…

Audio and Speech Processing · Electrical Eng. & Systems 2024-09-25 Wangyou Zhang , Kohei Saijo , Jee-weon Jung , Chenda Li , Shinji Watanabe , Yanmin Qian

The models that set the closest targets have made an important contribution to DEA as tool for the best-practice benchmarking of decision making units (DMUs). These models may help defining plans for improvement that require less effort…

Optimization and Control · Mathematics 2017-11-28 Nuria Ramón , José L. Ruiz , Inmaculada Sirvent

When building Deep Learning (DL) models, data scientists and software engineers manage the trade-off between their accuracy, or any other suitable success criteria, and their complexity. In an environment with high computational power, a…

Machine Learning · Computer Science 2021-03-15 Roger Creus Castanyer , Silverio Martínez-Fernández , Xavier Franch

Data mining, machine learning, and natural language processing are powerful techniques that can be used together to extract information from large texts. Depending on the task or problem at hand, there are many different approaches that can…

Information Retrieval · Computer Science 2017-11-08 Ricardo Baeza-Yates , Zeinab Liaghat

Data envelopment analysis (DEA) is one of the most commonly used methods to estimate the returns to scale (RTS) of the public sector (e.g., research institutions). Existing studies are all based on the traditional definition of RTS in…

Optimization and Control · Mathematics 2014-05-20 Guoliang Yang , Wenbin Liu , Wanfang Shen , Xiaoxuan Li

This paper employs data envelopment analysis (DEA) to assess both technical and cost efficiency of research activities of the Italian university system. Differently from both peer review and the top-down discipline-invariant bibliographic…

Digital Libraries · Computer Science 2018-12-20 Giovanni Abramo , Ciriaco Andrea D'Angelo

This paper proposes a novel slacks-based interval DEA approach that computes interval targets, slacks, and crisp inefficiency scores. It uses interval arithmetic and requires solving a mixed-integer linear program. The corresponding…

Optimization and Control · Mathematics 2023-11-17 Manuel Arana-Jiménez , Julio Lozano-Ramírez , M. Carmen Sánchez-Gil , Atefeh Younesi , Sebastián Lozano