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The problem of discovering frequent itemsets including rare ones has received a great deal of attention. The mining process needs to be flexible enough to extract frequent and rare regularities at once. On the other hand, it has recently…

Artificial Intelligence · Computer Science 2021-09-17 Mohamed-Bachir Belaid , Nadjib Lazaar

Association rule has been an area of active research in the field of knowledge discovery. Data mining researchers had improved upon the quality of association rule mining for business development by incorporating influential factors like…

Databases · Computer Science 2012-11-01 Jnanamurthy H. K. , Vishesh H. V. , Vishruth Jain , Preetham Kumar , Radhika M. Pai

The need to analyze information from streams arises in a variety of applications. One of its fundamental research directions is to mine sequential patterns over data streams. Current studies mine series of items based on the presence of the…

Databases · Computer Science 2022-04-12 Thomas Guyet , Wenbin Zhang , Albert Bifet

Itemset mining has been an active area of research due to its successful application in various data mining scenarios including finding association rules. Though most of the past work has been on finding frequent itemsets, infrequent…

Databases · Computer Science 2012-07-23 Ashish Gupta , Akshay Mittal , Arnab Bhattacharya

Tiering is an essential technique for building large-scale information retrieval systems. While the selection of documents for high priority tiers critically impacts the efficiency of tiering, past work focuses on optimizing it with respect…

Information Retrieval · Computer Science 2020-05-19 Hyokun Yun , Michael Froh , Roshan Makhijani , Brian Luc , Alex Smola , Trishul Chilimbi

Significant efforts have been expended in the research and development of a database management system (DBMS) that has a wide range of applications for managing an enormous collection of multisource, heterogeneous, complex, or growing data.…

Databases · Computer Science 2021-04-01 Chunkai Zhang , Zilin Du , Quanjian Dai , Wensheng Gan , Jian Weng , Philip S. Yu

Itemset mining is one of the most studied tasks in knowledge discovery. In this paper we analyze the computational complexity of three central itemset mining problems. We prove that mining confident rules with a given item in the head is…

Databases · Computer Science 2020-12-09 Christian Bessiere , Mohamed-Bachir Belaid , Nadjib Lazaar

Finding frequent itemsets in a data source is a fundamental operation behind Association Rule Mining. Generally, many algorithms use either the bottom-up or top-down approaches for finding these frequent itemsets. When the length of…

Databases · Computer Science 2011-09-13 M. Rajalakshmi , Dr. T. Purusothaman , Dr. R. Nedunchezhian

Mining frequent itemsets is a popular method for finding associated items in databases. For this method, support, the co-occurrence frequency of the items which form an association, is used as the primary indicator of the associations's…

Databases · Computer Science 2008-12-18 Michael Hahsler

We explore the top-$K$ rank aggregation problem. Suppose a collection of items is compared in pairs repeatedly, and we aim to recover a consistent ordering that focuses on the top-$K$ ranked items based on partially revealed preference…

Machine Learning · Computer Science 2016-03-15 Minje Jang , Sunghyun Kim , Changho Suh , Sewoong Oh

Advancements in materials play a crucial role in technological progress. However, the process of discovering and developing materials with desired properties is often impeded by substantial experimental costs, extensive resource…

Machine Learning · Computer Science 2023-11-17 Ahmed Shoyeb Raihan , Hamed Khosravi , Srinjoy Das , Imtiaz Ahmed

Feature selection is essential in the analysis of molecular systems and many other fields, but several uncertainties remain: What is the optimal number of features for a simplified, interpretable model that retains essential information?…

Machine Learning · Computer Science 2025-01-22 Romina Wild , Felix Wodaczek , Vittorio Del Tatto , Bingqing Cheng , Alessandro Laio

In the recent decade companies started collecting of large amount of data. Without a proper analyse, the data are usually useless. The field of analysing the data is called data mining. Unfortunately, the amount of data is quite large: the…

Databases · Computer Science 2021-08-12 Robert Kessl

As advances in technology allow for the collection, storage, and analysis of vast amounts of data, the task of screening and assessing the significance of discovered patterns is becoming a major challenge in data mining applications. In…

Databases · Computer Science 2010-02-08 Adam Kirsch , Michael Mitzenmacher , Andrea Pietracaprina , Geppino Pucci , Eli Upfal , Fabio Vandin

Certainly, nowadays knowledge discovery or extracting knowledge from large amount of data is a desirable task in competitive businesses. Data mining is a main step in knowledge discovery process. Meanwhile frequent patterns play central…

Databases · Computer Science 2010-01-14 Mohammad Nadimi Shahraki , Norwati Mustapha , Md Nasir B Sulaiman , Ali B Mamat

Instruction tuning is essential for Large Language Models (LLMs) to effectively follow user instructions. To improve training efficiency and reduce data redundancy, recent works use LLM-based scoring functions, e.g., Instruction-Following…

Machine Learning · Computer Science 2025-12-02 Yanjun Fu , Faisal Hamman , Sanghamitra Dutta

Topology identification (TI) in distribution networks is a challenging task due to the limited measurement resources and therefore the inevitable need to use pseudo-measurements that are often inaccurate. To address this issue, a new method…

Systems and Control · Electrical Eng. & Systems 2020-12-09 Lei Chen , Mohammad Farajollahi , Mahdi Ghamkhari , Wei Zhao , Songling Huang , Hamed Mohsenian-Rad

This paper proposes a frequent itemset mining algorithm based on the Boolean matrix method, aiming to solve the storage and computational bottlenecks of traditional frequent pattern mining algorithms in high-dimensional and large-scale…

Databases · Computer Science 2024-12-30 Xuan Li , Tingyi Ruan , Yankaiqi Li , Quanchao Lu , Xiaoxuan Sun

Utility-driven mining is an important task in data science and has many applications in real life. High utility sequential pattern mining (HUSPM) is one kind of utility-driven mining. HUSPM aims to discover all sequential patterns with high…

Databases · Computer Science 2021-12-01 Gengsen Huang , Wensheng Gan , Jian Weng , Philip S. Yu

Feature selection is a process of choosing a subset of relevant features so that the quality of prediction models can be improved. An extensive body of work exists on information-theoretic feature selection, based on maximizing Mutual…

Machine Learning · Computer Science 2016-12-05 Jilin Wu , Soumyajit Gupta , Chandrajit Bajaj