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Time Aware Mining of Itemsets 项目集的时间感知挖掘
2008 15th International Symposium on Temporal Representation and Reasoning Pub Date : 2008-06-16 DOI: 10.1109/TIME.2008.12
Bashar Saleh, F. Masseglia
{"title":"Time Aware Mining of Itemsets","authors":"Bashar Saleh, F. Masseglia","doi":"10.1109/TIME.2008.12","DOIUrl":"https://doi.org/10.1109/TIME.2008.12","url":null,"abstract":"Frequent behavioural pattern mining is a very important topic of knowledge discovery, intended to extract correlations between items recorded in large databases or Web access logs. However, those databases are usually considered as a whole and hence, itemsets are extracted over the entire set of records. Our claim is that possible periods, hidden within the structure of the data and containing compact itemsets, may exist. These periods, as well as the itemsets they contain, might not be found by traditional data mining methods due to their very weak support. Furthermore, these periods might be lost depending on an arbitrary division of the data. The goal of our work is to find itemsets that are frequent over a specific period but would not be extracted by traditional methods since their support is very low over the whole dataset. In this paper, we introduce the definition of solid itemsets, which represent a coherent and compact behavior over a specific period, and we propose SIM, an algorithm for their extraction. This work may find many applications in sensitive domains such as fraud or intrusion detection.","PeriodicalId":142549,"journal":{"name":"2008 15th International Symposium on Temporal Representation and Reasoning","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127875583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Labeled Natural Deduction Systems for a Family of Tense Logics 一类时态逻辑的标记自然演绎系统
2008 15th International Symposium on Temporal Representation and Reasoning Pub Date : 2008-03-21 DOI: 10.1109/TIME.2008.28
L. Viganò, Marco Volpe
{"title":"Labeled Natural Deduction Systems for a Family of Tense Logics","authors":"L. Viganò, Marco Volpe","doi":"10.1109/TIME.2008.28","DOIUrl":"https://doi.org/10.1109/TIME.2008.28","url":null,"abstract":"We give labeled natural deduction systems for a family of tense logics extending the basic linear tense logic Kl. We prove that our systems are sound and complete with respect to the usual Kripke semantics, and that they possess a number of useful normalization properties (in particular, derivations reduce to a normal form that enjoys a subformula property). We also discuss how to extend our systems to capture richer logics like (fragments of) LTL.","PeriodicalId":142549,"journal":{"name":"2008 15th International Symposium on Temporal Representation and Reasoning","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122223419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
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