نتایج جستجو برای: inter transaction sequence

تعداد نتایج: 543367  

Nowadays, information plays an important role in organizations. Sensitive information is often stored in databases. Traditional mechanisms such as encryption, access control, and authentication cannot provide a high level of confidence. Therefore, the existence of Intrusion Detection Systems in databases is necessary. In this paper, we propose an intrusion detection system for detecting attacks...

Journal: :Expert Syst. Appl. 2009
Chun-sheng Wang Anthony J. T. Lee

0957-4174/$ see front matter 2008 Elsevier Ltd. A doi:10.1016/j.eswa.2008.10.008 * Corresponding author. Tel.: +886 2 8212 2000 63 E-mail addresses: [email protected], d917250 Sequential pattern and inter-transaction pattern mining have long been important issues in data mining research. The former finds sequential patterns without considering the relationships between transactions in databa...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه زابل - دانشکده علوم پایه 1393

خارمریم (silybum marianum) گیاه دارویی از خانواده asteraceae بوده و بومی مناطق مدیترانه است. عصاره این گیاه قرن هاست که به عنوان تقویت کننده کبد شناخته شده است و گیاه شناسان حدود 2000 سال است که از دانه های آن برای درمان بیماری های مزمن کبدی و محافظت از کبد در مقابل سموم استفاده میکنند. در این مطالعه به منظور بررسی تنوع ژنتیکی خارمریم از نشانگر inter-simple sequence repeat amplification یا به ا...

1998
Hongjun Lu Jiawei Han Ling Feng

There is a fundamental di erence between rule R and the other rules The classical association rules express the associations among items purchased by one customer or share price movement within a day i e associations among items within the same transaction record We call them intra transaction association rules Sequential pattern discovery is also intra transaction mining in nature because each...

Journal: :J. Inf. Sci. Eng. 2015
Chun-sheng Wang

Inter-transaction pattern and rule mining has been the subject of active research and has potential application in many areas. All the previous inter-transaction rule mining studies proposed generating a full set of inter-transaction rules (i.e., all frequent and confident rules) from a full set of inter-transaction patterns (i.e., all frequent patterns). However, generating a full set inter-tr...

Journal: :SSRN Electronic Journal 2003

Journal: :molecular biology research communications 2015
mahmoud houshyarfard hamid rouhani mahrokh falahati-rastegar saeid malekzadeh-shafaroudi esmat mahdikhani-moghaddam

out of fifty-two iranian nonaflatoxigenic strains of aspergillus flavus, which were collected from various substrates (soil and kernel) and sources (peanut, corn and pistachio), fifteen representatives were selected according to their different geographical origins (six provinces: guilan and golestan, ardebil, fars, kerman and semnan) and vegetative compatibility groups (vcgs, ir1 to ir15) for ...

Journal: :Data Knowl. Eng. 2008
Anthony J. T. Lee Chun-sheng Wang Wan-Yu Weng Yi-An Chen Huei-Wen Wu

In this paper, we propose an efficient algorithm, called ICMiner (Inter-transaction Closed patterns Miner), for mining closed inter-transaction itemsets. Our proposed algorithm consists of two phases. First, we scan the database once to find the frequent items. For each frequent item found, the ICMiner converts the original transaction database into a set of domain attributes, called a dataset....

Journal: :Inf. Sci. 2007
Anthony J. T. Lee Chun-sheng Wang

In this paper, we propose an efficient method for mining all frequent inter-transaction patterns. The method consists of two phases. First, we devise two data structures: a dat-list, which stores the item information used to find frequent intertransaction patterns; and an ITP-tree, which stores the discovered frequent inter-transaction patterns. In the second phase, we apply an algorithm, calle...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده علوم پایه 1393

ابزارهای مولکولی روشهای بسیار دقیق برای تنوع زیستی هستند. روش issr (inter-simple sequence repeats amplification ) روشی نسبتاً نوین برای بررسی گونه های نزدیک به هم می باشند. در ایران، جنس eremias پراکندگی وسیعی در زیستگاه ها متنوع از دشتی، ماسه ای و نیمه صحرایی دارند. همچنین این جنس تنوع گونه ای زیادی دارد بطوریکه تنها در ایران 16 گونه از آن معرفی شده است. به منظور بررسی روابط خویشاوندی بین گونه ...

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