Search results for "PIM"
showing 10 items of 3280 documents
A Novel Deep Learning Stack for APT Detection
2019
We present a novel Deep Learning (DL) stack for detecting Advanced Persistent threat (APT) attacks. This model is based on a theoretical approach where an APT is observed as a multi-vector multi-stage attack with a continuous strategic campaign. To capture these attacks, the entire network flow and particularly raw data must be used as an input for the detection process. By combining different types of tailored DL-methods, it is possible to capture certain types of anomalies and behaviour. Our method essentially breaks down a bigger problem into smaller tasks, tries to solve these sequentially and finally returns a conclusive result. This concept paper outlines, for example, the problems an…
State of the Art Literature Review on Network Anomaly Detection with Deep Learning
2018
As network attacks are evolving along with extreme growth in the amount of data that is present in networks, there is a significant need for faster and more effective anomaly detection methods. Even though current systems perform well when identifying known attacks, previously unknown attacks are still difficult to identify under occurrence. To emphasize, attacks that might have more than one ongoing attack vectors in one network at the same time, or also known as APT (Advanced Persistent Threat) attack, may be hardly notable since it masquerades itself as legitimate traffic. Furthermore, with the help of hiding functionality, this type of attack can even hide in a network for years. Additi…
Koulutusvienti – todellinen aarre : Agenda 2030 haasteet ratkaistavissa globaalisti : ”Ei meillä oppilaitostasolla ole hajuakaan siitä mitä koulutusv…
2021
Pro gradu -tutkielmassa tarkoituksena oli selvittää suomalaisen koulutusviennin tekijöitä Varalan Urheiluopiston koulutustoiminnan kansainvälisen suunnittelun tarpeisiin. Tutkimuksen tavoitteena on asiantuntijoiden näkemysten avulla tukea päätavoitetta. Tämän tutkimuksen erityisenä käytännön tavoitteena oli tuottaa Varalalle askelmerkkejä kansainvälisen toiminnan suunnitteluun kehittämismenetelmän keinoin. Tutkimus on laadullinen tutkimus ja aineistonkeruumenetelmänä tutkimuksessa käytettiin puolistrukturoitua kyselylomaketta (N=8) sekä puolistrukturoitua yksilöhaastattelua (N=6). Kyselyyn vastanneet sekä haastateltavat valikoituivat instituutionaalisen asemansa perusteella. Laadullisen ain…
Exploiting the diversity of tomato: the development of a phenotypically and genetically detailed germplasm collection
2020
[EN] A collection of 163 accessions, including Solanum pimpinellifolium, Solanum lycopersicum var. cerasiforme and Solanum lycopersicum var. lycopersicum, was selected to represent the genetic and morphological variability of tomato at its centers of origin and domestication: Andean regions of Peru and Ecuador and Mesoamerica. The collection is enriched with S. lycopersicum var. cerasiforme from the Amazonian region that has not been analyzed previously nor used extensively. The collection has been morphologically characterized showing diversity for fruit, flower and vegetative traits. Their genomes were sequenced in the Varitome project and are publicly available (solgenomics.net/projects/…
Mathematical Fuzzy Logic in the Emerging Fields of Engineering, Finance, and Computer Sciences
2022
With more than 50 years of literature, fuzzy logic has gradually progressed from an emerging field to a developed research domain, incorporating the sub-domain of mathematical fuzzy logic (MFL) [...]
Cytotoxic Activity and Composition of Petroleum Ether Extract from Magydaris tomentosa (Desf.) W. D. J. Koch (Apiaceae)
2015
The petroleum ether extract of Magydaris tomentosa flowers (Desf.) W. D. J. Koch has been analyzed by GC-MS. It is mainly constituted by furanocoumarins such as xanthotoxin, xanthotoxol, isopimpinellin, and bergaptene. Other coumarins such as 7-methoxy-8-(2-formyl-2-methylpropyl) coumarin and osthole also occurred. The antiproliferative activity of Magydaris tomentosa flower extract has been evaluated in vitro on murine monocye/macrophages (J774A.1), human melanoma (A375) and human breast cancer (MCF-7) tumor cell lines, showing a major activity against the latter.
Diastereoselective synthesis of antiquorin and related polyoxygenated atisene-type diterpenes
2007
Abstract A diastereoselective approach to polyoxygenated atisene-type diterpenes starting from (S)-(+)-carvone is described. The key steps used in the preparation of the atisene framework are an intramolecular Diels–Alder reaction, an intramolecular diazoketone cyclopropanation, an endocyclic cyclopropane ring cleavage and the regioselective reduction of an allylic bromide by a low-valent chromium species. The synthesis of natural atisanes antiquorin (1), atis-16-ene-3,14-dione (3), atis-16-ene-2,3,14-trione (8) and 3β-hydroxy-atis-16-ene-2,14-dione (9) following this approach is presented. Also described is the synthesis of 18-hydroxy-atis-16-ene-3,14-dione (5), the structure erroneously a…
AlphaGo ja Monte Carlo -puuhaku
2017
Tässä tutkielmassa käsittelen Monte Carlo -puuhakualgoritmia sekä sen roolia hyvin menestyneessä AlphaGo-tekoälyssä. Tavoitteena oli muodostaa kokonaiskuva AlphaGo:n toiminnasta, painottuen etenkin Monte Carlo -puuhaun näkökulmaan. Tutkimuksen perusteella selvisi miten ohjelma hyödyntää omassa hakualgoritmissään kyseistä puuhakua, jota se parantaa hyödyntäen koneoppimista ja useita eri tarkoituksiin opetettuja neuroverkkoja. AlphaGo saavutti näin tehokkuuden, johon muut go-ohjelmat eivät vielä ole kyenneet. In this thesis I study the Monte Carlo tree search algorithm, and it’s role in successful go-program, AlphaGo. The goal was to form a general view of AlphaGo’s inner workings, especially…
New chiral α-aminophosphine oxides and sulfides: an unprecedented rhodium-catalyzed ligand epimerization
2001
International audience; New chiral α-aminophosphine oxide N,P(O) and sulfide N,P(S) ligands have been prepared in one-pot syntheses by addition of Ph2PH to (S)-PhCH[double bond, length half m-dash]NCH(Ph)CH3, followed by oxidation with O2 or S8. Crystallization from cold methanol leads to the isolation of an enantiomerically pure single N,P(O) diastereomer and to a 1 : 1 mixture of the two N,P(S) diastereomers. The coordination chemistry of these ligands with [RhCl(COD)]2 and [RhCl(CO)2]2 has been investigated under argon and syngas. At high temperatures, a P–C oxidative addition of the N,P(O) ligand followed by imine elimination leads to several hydrido rhodium species. The complexes conta…
Chiral Monofluorobenzyl Carbanions: Synthesis of Enantiopure β‐Fluorinated β‐Phenylethylamines
2011
The preparation of a stabilized monofluorobenzyl carbanion by means of a remote homochiral sulfinyl group and its completely stereoselective reactions with N-p-tolylsulfinylimines are described. The use of these reactions followed by the simultaneous removal of both chiral auxiliaries with tBuLi, which occurs without epimerization at the benzylic position, provides the quickest entry to enantiomerically pure β-fluorinated β-phenylethylamines.