• Journal of the Korea Society of Computer and Information
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• v.15 no.11
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• pp.205-213
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• 2010

This study uses the FP-tree algorithm, one of the mining techniques. This study is an attempt to suggest a new recommended system using a modified FP-tree algorithm which yields an association rule based on frequent 2-itemsets extracted from the transaction database. The modified recommended system consists of a pre-processing module, a learning module, a recommendation module and an evaluation module. The study first makes an assessment of the modified recommended system with respect to the precision rate, recall rate, F-measure, success rate, and recommending time. Then, the efficiency of the system is compared against other recommended systems utilizing the sequential pattern mining. When compared with other recommended systems utilizing the sequential pattern mining, the modified recommended system exhibits 5 times more efficiency in learning, and 20% improvement in the recommending capacity. This result proves that the modified system has more validity than recommended systems utilizing the sequential pattern mining.

• The Korean Journal of Food And Nutrition
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• v.25 no.1
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• pp.181-187
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• 2012

Grifola frondosa has been used as an herbal medicine for the treatment of cancer, diabetes mellitus and high blood pressure. In this study, functional polysaccharide was obtained from Grifola frondosa using four different extraction methods: hot water(HwFP), homogenize(HgFP), acid(AcFP), and alkali(AlFP) extraction methods. The effects of these extracts on KB and HepG2 cell lines were then examined for any anti-cancer activity. Alkaline extraction produced a yield of 0.175% and the total sugar content of the extract was 54.97%. We were able to confirm that the polysaccharide extracts from the mushroom produce an anti-cancer effect. The cytotoxicity of AlFP and AcFP against HepG2 cells were 22.86% and 28.88%, respectively, and the cytotoxicity of AlFP against the KB cell lines was 47.76% at a concentration of 1,000 ${\mu}g/m{\ell}$. Therefore, these results suggest that the optimum method for extracting functional polysaccharides from G. frondosa is the alkali extraction method.

• KIPS Transactions on Software and Data Engineering
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• v.5 no.12
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• pp.623-634
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• 2016

Most of existing frequent pattern mining methods address time efficiency and greatly rely on the primary memory. However, in the era of big data, the size of real-world databases to mined is exponentially increasing, and hence the primary memory is not sufficient enough to mine for frequent patterns from large real-world data sets. To solve this problem, there are some researches for frequent pattern mining method based on disk, but the processing time compared to the memory based methods took very time consuming. There are some researches to improve scalability of frequent pattern mining, but their processes are very time consuming compare to the memory based methods. In this paper, we present PPFP as a novel disk-based approach for mining frequent itemset from big data; and hence we reduced the main memory size bottleneck. PPFP algorithm is based on FP-growth method which is one of the most popular and efficient frequent pattern mining approaches. The mining with PPFP consists of two setps. (1) Constructing an IFP-tree: After construct FP-tree, we assign index number for each node in FP-tree with novel index numbering method, and then insert the indexed FP-tree (IFP-tree) into disk as IFP-table. (2) Mining frequent patterns with PPFP: Mine frequent patterns by expending patterns using stack based PUSH-POP method (PPFP method). Through this new approach, by using a very small amount of memory for recursive and time consuming operation in mining process, we improved the scalability and time efficiency of the frequent pattern mining. And the reported test results demonstrate them.

• Journal of Life Science
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• v.29 no.1
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• pp.97-104
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• 2019

Streptococcus iniae is a typical fish pathogen causing streptococcosis and it can also cause zoonotic infectious diseases. We studied S. iniae FP5228 isolated from infected olive flounder in Wando, Korea. In a study to find virulence factors in FP5228, we found that the number of live bacteria decreased dramatically in culture medium containing S. iniae FP5228 for more than 24 hr. This phenomenon was hypothesized to be related to Toxin ${\zeta}$ and Antitoxin ${\varepsilon}$ genes, components of the Toxin/ Antitoxin (TA) system on the 14 kb plasmid of FP5228. We used a protein overexpression system to identify it. The pBP1140 vector system was constructed to regulate the expression of Toxin ${\zeta}$ and Antitoxin ${\varepsilon}$ by IPTG and Arabinose. E. coli/pBP1140 strain grew slowly in early growth under toxin expression condition, and it was confirmed by microscopic observation that the strain became longer. S. iniae CK287, lacking a 14 kb plasmid of S. iniae FP5228 strain, was constructed. CK287 bacterial cells did not show rapid killing during culture, and the ability to produce biofilm was also decreased, and toxicity was weakened in cytotoxicity test and fish test. These results suggest that the TA system is involved in physiological regulation and expression of virulence factors in S. iniae FP5228.

• Proceedings of the Korean Information Science Society Conference
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• 2011.06b
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• pp.128-131
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• 2011

현재 IT 환경은 빠른 서비스의 생성과 컴포넌트의 재활용성을 통하여 새로운 비즈니스 환경 변화에 가장 빠르게 대응하는 것이 중요하다. 따라서 기존 Legacy 시스템의 한계를 극복한 SOA(Service Oriented Architecture)가 각광받고 있다. 하지만 SOA와 같은 Web 기반 시스템의 경우 Legacy 시스템 측정에 알맞게 구축된 비용산정에 어려움을 겪고 있으며, 잘못된 비용 산정의 결과로 인하여 다수의 프로젝트가 실패하고 있다. 따라서 본 논문은 현재 국내 소프트웨어 개발 규모 산정을 위한 국제 표준인 FP(Function Point)를 통한 규모 산정 방식을 제안한다. 본 논문은 기존 FP방식이 사용자 중심의 기능 단위로 산정을 함에 따라 발생하는 문제점을 제시하고, 기존 산정 방식의 문제점을 개선한 연계 기능을 포함한 FP 산출 방법의 제안을 통하여 기존 FP에서 측정할 수 없었던 SOA 도메인의 특징을 반영한 FP의 산출이 가능하다. 이를 통하여 SOA 기반 시스템의 정확한 예산 측정이 가능하며, 프로젝트의 실패를 감소할 수 있다.

• Proceedings of the KIEE Conference
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• 2015.07a
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• pp.1106-1107
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• 2015

A flux pump (FP) can inject the DC current into high temperature superconducting (HTS) field coils of a HTS rotating machine without slip ring and current lead. However, it has limits to improve the value of DC current, and has time constants of DC current according to inductances of the HTS field coils. When a large-scale HTS generator with the FP is designed, a proper point about the inductance, field current, and time constant is demanded to decide parameters of the generator. In this paper, a parameter tuning skill of a large-scale superconducting wind power generator for applying a FP has been proposed. The design of the FP has been fixed, and 12 MW HTS generators have been variously designed by adjusting parameters related with the inductance of the HTS field coil. The induced current values have been calculated based on the FP design. The time constants of the induced currents depending on the DC current values and inductances of the generator have been represented. The results of the parameter tuning of the HTS generator have been discussed in detail.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.19 no.2
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• pp.127-133
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• 2019

Since frequent item extraction so far requires searching for patterns and traversal for the FP-Tree, it is more likely to store the mining data in a tree and thus CPU time is required for its searching. In order to overcome these drawbacks, in this paper, we provide each item with its location identification of transaction data without relying on conditional FP-Tree and convert transaction data into 2-dimensional position information look-up table, resulting in the facilitation of time and spatial accessibility. We propose an algorithm that considers the mapping scheme between the location of items and items that guarantees the linear time complexity. Experimental results show that the proposed method can reduce many execution time and memory usage based on the data set obtained from the FIMI repository website.

• Archives of Plastic Surgery
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• v.48 no.3
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• pp.278-281
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• 2021

Facial palsy (FP) is a functional disorder of the facial nerve involving paralysis of the mimic muscles. According to the principle "time is muscle," early surgical treatment is tremendously important for preserving the mimic musculature if there are no signs of nerve function recovery. In a 49-year-old female patient, even 19 months after onset of FP, successful neurotization was still possible by a V-to-VII nerve transfer and cross-face nerve grafting. Our patient suffered from complete FP after vestibular schwannoma surgery. With continuous application of electrostimulation (ES) therapy, the patient was able to bridge the period between the first onset of FP and neurotization surgery. The significance of ES for mimic musculature preservation in FP patients has not yet been fully clarified. More attention should be paid to this form of therapy in order to preserve the facial musculature, and its benefits should be evaluated in further prospective clinical studies.

• Proceedings of the Korean Society of Grassland Science Conference
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• 1999.06a
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• pp.85.1-85
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• 1999

옥수수/호밀 작부조합의 다년간 연작지에 C4형 난지형 목초 FP식생이 종축개량부 조사료 생산 포장에 다량 발생되어 있음을 확인하고 이 식생을 이탈리안과 결합, 작부를 구성하고 이를 저투입 지속적 조사료 생산에 활용하고자 하였다. 1. 성환지방에서 FP의 생태는 종자휴면기 및 휴면타파기 그리고 출아가능기, 경엽생산기로 구분되었고 경엽생산은 10월 말에 종료되는 것으로 나타났다.(중략)

• Electronics and Telecommunications Trends
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• v.19 no.1 s.85
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• pp.33-42
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• 2004

본 고는 가장 최근에 개발된 HDRI 포맷인 OpenEXR 파일 포맷에 대하여 살펴본다. 지금까지 HDRI 포맷으로서 사용되었던 Log Luv TIFF나 Radiance RGBE와 같은 FP 타입의 HDRI 포맷은 압축 방식에 있어서 모두 손실 압축(loss compression)이거나 또는 너무 많은 메모리(32bits FP)를 소비하는 단점이 있었다. 그러나 ILM에 의해서 개발된 EXR 영상 포맷은 16bits FP 데이터 타입에 무손실 압축(lossless compression)을 제공할 뿐만 아니라 유연한 확장성을 제공하고 있기 때문에 앞으로 영상 산업에서의 비주얼 이펙트 표현에 중요한 역할을 할 것으로 기대된다.