European Journal of Scientific Research
Volume 128 No 4
Compact BitTable based Distributed Association Rule Mining using Mobile Agent Framework
A. Saleem Raja and E.George Dharma Prakash Raj
Distributed association rule mining requires flexible and easily extensible framework to mining the frequent item-sets (FI) from distributed sites. Past decades, various approaches have been proposed by the researchers. Recently mobile agents (MA) were deployed in distributed data mining due its flexibility and extensibility and Bit Table structure is used for FI mining. This paper, we present the compact bit-table (CBT-fi) based distributed association rule mining using mobile agent framework. Finally compare performance of CBT-fi algorithm and standard Apriori algorithm with-in MADARM framework. The results show that CBT-fi performs better.
Keywords:Frequent Item-sets Mining, Mobile Agent, Agent Mining, Distributed Data Mining
Evaluation Quantitative de Quelques Polysaccharides Pariétaux et Polyphénols Chez L’aubépine Monogyne (Crataegus Monogyna Jacq.)du Mont de Tessala (Algérie Occidentale)"
Mokhtaria Hamdaoui, Zoheir Mehdadi and Fatiha Chalane
Notre travail consiste à évaluer quantitativement quelques polysaccharides pariétaux (cellulose, hémicelluloses et pectines) et polyphénols (phénols totaux, flavonoïdes, tannins hydrolysables et tannins condensés) sur des extraits méthanoliques préparés à base des feuilles, fleurs et péricarpe du fruit de Crataegus monogyna
Jacq., du mont de Tessala (Algérie occidentale). Les résultats obtenus montrent une variabilité quantitative des substances suscitées entre les organes végétaux analysés (P < 0.05). Des quantités appréciables en cellulose, hémicelluloses et en pectines caractérisent le péricarpe du fruit, par contre les polyphénols sont mieux représentés dans les feuilles et les fleurs.
Keywords:Mont de Tessala, Crataegus monogyna
Jacq., analyse quantitative, polyphénols, polysaccharides pariétaux.
Assessment of using Cement, Dead Sea Sand and Oil Shale in Treating Soft Clay Soil
Bassam Z. Mahasneh
This work present utilizing the use of Cement, Silty Sand (Dead Sea soil), and Oil Shale to treat soft clay soil. The major physical soil properties of the combined materials inspected and analyzed for liquid limit, plastic limit, specific gravity, grain size distribution (sieve analysis), the hydrometer test, permeability, direct shear, consolidation, and triaxial test. The benefits gained from using some soil stabilizers is to solve some problems that may face Geotechnical Engineers before, during and after performing the construction. The effect of adding the above mentioned materials enhance the physical properties of the soft clay soil. Some recommended percentages of the used materials been accounted in this work to enhance the physical properties of the soft clay to make it capable to resist the applied loading comes from super structure stated as; 4% of silty sand could improve the soft clay soil. Natural oil shale of 14% could improve the clay soil behavior. Using up to 12% of the Ordinary Portland Cement in mixing with soft clay soil could as well improve the physical properties of the soil and the cost is reasonable.
Keywords: Soft Clay Soil, Stabilization, Oil shale, Silty Sand, Cement, Consolidation, Permeability, Triaxial test, USCS.
Assessment Concentration of Radon222 in Al-Kerak Region Soil & Building Materials
Bassam Z. Mahasneh
levels were measured using the solid state nuclear track detector (CR-39). 21 dosimeter containing CR-39 placed in seven different sites in Al-Kerak region; Mutah, Adder, Madden, Barada, Al- Smakia, Rakeen, and Al-Haweya. It was found that Barada and AL-Smakia possessed the highest Radon levels 356.891 Bq/m3 and 353.379 Bq/m3
respectively. The lowest value of Radon concentration was 100.89Bq/m3
and found in Madden. Also Radon levels was measured in 9 different types of building materials; Ordinary Portland Cement; O.P.C, Aggregate (Lime stone), Marble, Sand, Fly Ash, Oil Shale, Soot, Slag and Zeolites). It was found that Marble contains a high level of Radon222
) and Oil shale has the lowest value of Radon level equal to 9.587Bq/m3
. The detected CR-39 were inspected and analyzed at Jordan Atomic Energy Agency using high accuracy Optical Microscope. Uncertainty calculation were made on the whole data taken from the Agency to figure out the accuracy of the results. A comparison has been made between the results comes out from this work and the others results regard some places and some construction materials.
, CR-39 track detector, Soot, Zeolites, Building Materials, Oil Shale.
A Comparative Study of Association Rules Data Mining Algorithms with Stressed Student Dataset
R. Priya and Ananthi Sheshasaayee
This paper presents a comparison between classical frequent pattern mining algorithms that use stressed candidate set generation and test and the algorithms without candidate set generation. In order to have some experimental data to sustain this comparison a representative algorithm from both categories mentioned above was chosen (the Apriori, FP-growth and DynFP-growth algorithms). The compared algorithms are presented together with some experimental data that lead to the final conclusion and decisions.
Keywords: Association Rule Data Mining,Apriori, FP-growth, DynFP growth, Student Stress, Pattern Mining
Population Dynamics of Four Monogenean Gill Parasites of Cultured Oreochromis niloticus at Yaounde, Cameroon
Tombi Jeannette, Akoumba John Francis, Mieguim Ngninpogni Dominique,Wabo Pone Josué and Bilong Bilong Charles Félix
Parasitism is a constraint which often has severe impact on fish farming. According to Lorrillière (2011), the study of the dynamics of parasite populations allows to effectively fight against infections caused by these pathogens. It is in this perspective that we undertook the study of the longitudinal variation of gill parasite populations of Oreochromis niloticus
From February 2012 to February 2013, 406 fish were captured in the fish culture station of Melen and fixed in 10% formalin prior to laboratory examination. It appeared that the various representatives of the studied component-community (Cichlidogyrus thurstonae
Ergens, 1981, Cichlidogyrus halli
Price and Kirk, 1967, Cichlidogyrus tilapiae
Paperna, 1960 and Scutogyrus longicornis
Paperna and Thurston, 1969 were omnipresent throughout the sampling period with the exception of S. longicornis
, that was absent in its host in March 2012. This observation suggests that microenvironment and macroenvironment of parasites are conducive to their continued development.
The study of the monthly variation of the epidemiological index (prevalence and mean intensity) showed two patterns of variation: C. thurstonae, C. halli
and C. tilapiae
were less frequent in August 2012 (PSS), but more abundant in November of the same year while Scutogyrus longicornis
evolved in a saw teeth pattern. Factors such as the size of the host, the haptorial phenotype of parasites, the volume and the temperature of the water could justify these results.
Keywords: Melen,Oreochromis niloticus
, gills, Monogeneans, population dynamics
Comportement Hydro-Mécanique des Sédiments Traités pour Utilisation en Géotechnique Routière
Maghnia Asmahane Bourabah, Said Taibi and Nabil Abou-Bekr
L'utilisation des sédiments de dragage en géotechnique routière est devenue actuellement un important domaine de recherche. L’article traite l’étude du comportement hydro-mécanique de sédiments traités en vue de les exploiter en domaine routier. L'objectif étant de proposer un matériau traité économiquement compétitif et facile à mettre en œuvre in situ, satisfaisant les conditions hydrauliques et mécaniques.
La première partie de cette étude, présente une synthèse des résultats justifiant le choix du mélange optimum vis-à-vis de la distribution granulométrique et de la teneur en matières organiques. La deuxième partie, présente les résultats expérimentaux du comportement obtenu sur les chemins de drainage-humidification du matériau préparé à différents degrés de saturation. Il s’agit de chemins de variations de succions sous contraintes extérieures nulles.
Deux techniques expérimentales ont été adoptées, la technique osmotique et celle des solutions salines saturées. Une synthèse des caractéristiques hydro-mécaniques a été élaborée entre le comportement hydrique des formulations de matériaux étudiés à l’état naturel et calciné et à différents états de compacité; traités après d’un sol granulaire comme correcteur granulométrique en vue de les exploiter par la suite en technique routière.
Keywords: Sédiments de dragage, Succion, Traitement, Drainage-Humidification, Comportement Hydro-Mécanique
A Novel Energy Efficient Active Voltage Level Shifter
Srinivasulu Gundala, Venkata K. Ramanaiah and Padmapriya K.
Level shifters are the key circuits in multi supply based digital systems. The level shifters are the interfacing circuits perform voltage translations useful to reduce the static current between multi supplies based digital systems. In this paper we propose a unique level shifter that performs level up shift, level down shift and blocking. The proposed level shifter is simulated at 90nm technology using HSPICE and model files. The robustness of the design has tested with two types of analysis such as power, delay analysis. The experimental results say that the design consumes level up and level down average power consumption of 24 nW and delay 17.3 ns, at a given VIN is 0.4V and VOUT is 1V with a signal frequency of 1MHz. The parametric analysis shows that the proposed level converter provides a stable output.
Keywords: Delay, Digital circuits, Level shifter, CMOS circuits, power consumption.
Vertical Fragmentation, Allocation and Re-Fragmentation in Distributed Object Relational Database Systems with Update Queries
Thendral P and Madhu Viswanatham V
The efficiency and performance of the distributed systems is mainly determined by the network communications cost between the different sites and execution time of queries. This is achieved by dividing the database into fragments of data and distributing them on various sites. Fragmentation algorithms have been proposed for the relational model, but the object relational data model is not yet implemented. In case of relational database placement of data is comparatively simple. These days Object Oriented Database Management Systems have become very popular, therefore in this paper, an algorithm is implemented for Vertical Fragmentation and Allocation in Distributed Object Database Systems model consisting of simple attributes and simple methods. The key idea of this paper is that it introduces a novel technique that considers re-fragmentation of main database, re-allocation of fragments when it is required and update operation on the server database and corresponding site fragments.
Keywords: Distributed Systems, Object Oriented Database, Vertical Fragmentation, Simple Attributes and Simple Methods, Update queries, Re-fragmentation, Re-allocation.
Prognostic Factors in Response to Neoadjuvant Chemotherapy in Operable Breast Cancer in Western Algeria
Nawel Nassima Benchiha, Soraya Moulessehoul, Djamila Yekrou and Leila Houti
Breast cancer treatment on Algerian women used to apply many adjuvant systemic therapies, which have important consequences on toxicity and survival. The response to neoadjuvant chemotherapy (NCT) can be important for management and prognosis of breast cancer. Our study aimed to identify the main prognostic factors associated to overall survival (OS) and disease-free survival (DFS) in 84 women from Western Algeria receiving NCT for breast cancer followed by surgery and adjuvant treatments. The univariate analysis, after a median follow up of 30.5 months, showed a significant relationship between DFS and SBR tumour grade post-chemotherapy (p=0.026).The hormonal receptors (HR) factor was significant for survival (p<0.007). The node involvement (NI) was a prognostic factor in both survivals (p<0.013). In multivariate analysis, the prognostic factor in OS was NI (p=0.019). Positive HR improved significantly DFS (p=0.009). The NI after NCT seemed to be the main prognostic factor for survival, and so its dissection is still an important practice in our hospital institution. It allows selecting patients for adjuvant therapy and avoids toxicity effects in women with no risk of relapse. Positive HR improves the survival of the Algerian women population. Their treatment by NCT provides clinical and pathological parameters and guides our clinicians towards this aim.
Keywords: Breast cancer, Neoadjuvant chemotherapy, Prognostic factors, Overall survival, Disease-free survival