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1How do machine learning techniques help in increasing accuracy of landslide susceptibility maps?显示文摘Landslides are abundant in mountainous regions.They are responsible for substantial damages and losses in those areas.The A1 Highway,which is an important road in Algeria,was sometimes constructed in mountainous and/or semi-mountainous areas.Previous studies of landslide susceptibility mapping conducted near this road using statistical and expert methods have yielded ordinary results.In this research,we are interested in how do machine learning techniques help in increasing accuracy of landslide susceptibility maps in the vicinity of the A1 Highway corridor.To do this,an important section at Ain Bouziane(NE,Algeria) is chosen as a case study to evaluate the landslide susceptibility using three different machine learning methods,namely,random forest(RF),support vector machine(SVM),and boosted regression tree(BRT).First,an inventory map and nine input factors were prepared for landslide susceptibility mapping(LSM) analyses.The three models were constructed to find the most susceptible areas to this phenomenon.The results were assessed by calculating the receiver operating characteristic(ROC) curve,the standard error(Std.error),and the confidence interval(CI) at 95%.The RF model reached the highest predictive accuracy(AUC=97.2%) comparatively to the other models.The outcomes of this research proved that the obtained machine learning models had the ability to predict future landslide locations in this important road section.In addition,their application gives an improvement of the accuracy of LSMs near the road corridor.The machine learning models may become an important prediction tool that will identify landslide alleviation actions.Yacine Achour Hamid Reza Pourghasemi 2020Geoscience Frontiers2020,11,3:11
2Modelling the spatial distribution of snake species in northwestern Tunisia using maximum entropy(Maxent) and Geographic Information System(GIS)显示文摘We used GIS and maximum entropy to predict the potential distribution of six snake species belong to three families in Kroumiria(Northwestern Tunisia): Natricidae(Natrix maura and Natrix astreptophora), Colubridae(Hemorrhois hippocrepis, Coronella girondica and Macroprotodon mauritanicus), and Lamprophiidae(Malpolon insignitus). The suitable habitat for each species was modelled using the maximum entropy algorithm, combining presence field data(collected during 16 years:2000–2015) with a set of seven environmental variables(mean annual precipitation, elevation, slope gradient,aspect, distance to watercourses, land surface temperature and normalized Differential Vegetation Index. The relative importance of these environmental variables was evaluated by jackknife tests and the predictive power of our models was assessed using the area under the receiver operating characteristic. The main explicative variables of the species distribution were distance from streams and elevation, with contributions ranging from 60 to 77 and from 10 to 25%,respectively. Our study provided the first habitat suitability models for snakes in Kroumiria and this information can be used by conservation biologists and land managers concerned with preserving snakes in Kroumiria.Mohsen Kalboussi Hammadi Achour 2018Journal of Forestry Research2018,29,1:6
3Completeness of malaria notification in Tunisia assessed by capture recapture method显示文摘N Ben Alaya-Bouafif MK Chahed H El Bez H Bellali L Ayari N Achour 2011Asian Pacific Journal of Tropical Disease2011,,3:2
4Evaluation of adsorption capacities of humic acids extracted from Algerian soil on polyaniline for application to remove pollutants such as Cd(Ⅱ), Zn(Ⅱ) and Ni(Ⅱ) and characterization with cavity microelectrode显示文摘The adsorption capacities of new humic acids isolated from Yakouren forest (YHA) and Sahara (Tamenrasset: THA) soils (Algeria) and commercial humic acid (PFHA) on polyaniline emeraldine base (PEB) were studied at pH 6.6. Also the adsorption of heavy metals such as Cd 2+ , Zn 2+ and Ni 2+ on humic acid-polyaniline systems (HA-PEB) was investigated at the same conditions. HA-PEB compounds were characterized by scanning electron microscopy (SEM), infrared spectrometry and cavity microelectrode. In addition, batch adsorption and cavity microelectrode were used in the adsorption study of Cd 2+ , Zn 2+ and Ni 2+ on HA-PEB. To develop biocaptors of polluting metals using a cavity microelectrode modified by HA-PEB systems, the adsorption kinetic and adsorption capacity were investigated. The SEM analysis showed that the presence of humic acid affected the PEB surface and caused the formation of a granular morphology. The maximum adsorption capacities (q max ) of PFHA, THA and YHA determined by adsorption isotherms were 91.31, 132.1 and 151.0 mg/g, respectively. Batch adsorption results showed that q max of Cd 2+ , Zn 2+ and Ni 2+ on HA-PEB followed the order: THA-PEB > YHA-PEB > PFHA-PEB. The voltammograms obtained with HA-PEB modified cavity microelectrode showed the appearance of new redox couples reflecting the adsorption of HA on PEB. Metal-humic acid-polyaniline voltammograms were characterized by appearance of oxidation-reduction couples or reduction wave corresponding to metal. Finally, the result may be exploited to develop a biocaptor based on the cavity microelectrode amended by THA-PEB and YHA-PEB.Achour Terbouche Chafia Ait Ramdane-Terbouche Didier Hauchard Safia Djebbar 2011Journal of Environmental Sciences2011,23,7:2
5The UHRF fam- ily: oncogenes that are drugable targets for cancer therapy in the nearfuture? 显示文摘BRONNER C ACHOUR M ARIMA Y l 2007Pharmacology and Therapeutics2007,115,3:1
6Asynchrony and cyclic variability in pressure support noninvasive ventilation显示文摘Achour L Letellier C Cuvelier A 0,,9:1
7Thymic expression of insulin-related genes in an animal model of autoimmune type 1 diabetes显示文摘Kecha-Kamoun O Achour I Martens H 2001Diabetes Metab Res Rev2001,17,:1
8Glia: the many ways to modulate synaptic plasticity显示文摘Ben Achour S Pascual O 2010Neurochem Int2010,57,4:1
9Small bowel tumors:What is the contribution of video capsule endoscopy?显示文摘Achour J Serraj I Amrani L 2012Clin Res Hepatol Gastroenterol2012,36,3:1
10Short chain fructo-oligosaccharides administration dose-dependantly increases fecal bifidobacteria in healthy humans 显示文摘Bouhnik Y Vahedi K Achour L 1999J Nutr1999,129,:1
11Recurrent pregnancy lower related to immune disorders显示文摘Ksouri H Ztoumi M Achour W 0,,:1
12Immune modulation by the human cytomegalovirus-encoded molecule UL18,a mystery yet to be solved显示文摘Wagner CS Ljunggren HG Achour A 2008J Immunol2008,180,1:1
13Metabolic effects of digestible and partially indigestible starch: a study in the absorptive and postabsorptive methods in healthy humans 显示文摘Achour A Flourie B Franchisseur C et al 1997Am J Clin Nutr1997,66,:1
14The effect of heat stress on freeze-drying and conservation of Lactoooocus 显示文摘ZIADI M TOUHAMI Y ACHOUR M 2005Biochemical Engineering Journal2005,24,2:1
15Cathepsin D activity and selectivity in the acidic conditions of a tumor microenvironment:Utilization in the development of a novel Cathepsin D substrate for simultaneous cancer diagnosis and therapy显示文摘Achour O Bridiau N Kacem M 2013Biochimie2013,95,11:1
16Microglia activation triggers astrocyte-mediated modulation of excitatory neurotransmission显示文摘Pascual O Ben Achour S Rostaing P 2012Proc Natl Acad Sci U S A2012,109,4:1
17Guiding goal modeling using scenarios 显示文摘Colette Rolland Carine Souveyet Camille Ben Achour 1998IEEE Transactions on Software Engineering1998,24,12:1
18Systemic lupus erythematosus in the elderly显示文摘ACHOUR A MANKAI A THABET Y 2012Rhcumatol Int2012,32,5:1
19Epidemiology of sheep pox in Algeria显示文摘Achour H A Bouguedour R 1999Revue Scientific Queet Technique of Int Des Epiz1999,18,3:1
20Simulating atmospheric free-space optical propagation, part II: haze, fog, and low clouds attenuations显示文摘Achour M 2002SPIE2002,4873,:1
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