Analele Stiintifice Ale Universitatii Ovidius Constanta-Seria Matematica最新文献

Session centered Recommendation Utilizing Future Contexts in Social Media 以会议为中心的建议，利用社交媒体的未来背景

IF 0.6 4区数学

Analele Stiintifice Ale Universitatii Ovidius Constanta-Seria Matematica Pub Date : 2021-11-01 DOI: 10.2478/auom-2021-0036

Sanjeev Dhawan, Kulvinder Singh, A. Rabaea, Amit Batra

{"title":"Session centered Recommendation Utilizing Future Contexts in Social Media","authors":"Sanjeev Dhawan, Kulvinder Singh, A. Rabaea, Amit Batra","doi":"10.2478/auom-2021-0036","DOIUrl":"https://doi.org/10.2478/auom-2021-0036","url":null,"abstract":"Abstract Session centered recommender systems has emerged as an interesting and challenging topic amid researchers during the past few years. In order to make a prediction in the sequential data, prevailing approaches utilize either left to right design autoregressive or data augmentation methods. As these approaches are used to utilize the sequential information pertaining to user conduct, the information about the future context of an objective interaction is totally ignored while making prediction. As a matter of fact, we claim that during the course of training, the future data after the objective interaction are present and this supplies indispensable signal on preferences of users and if utilized can increase the quality of recommendation. It is a subtle task to incorporate future contexts into the process of training, as the rules of machine learning are not followed and can result in loss of data. Therefore, in order to solve this problem, we suggest a novel encoder decoder prototype termed as space filling centered Recommender (SRec), which is used to train the encoder and decoder utilizing space filling approach. Particularly, an incomplete sequence is taken into consideration by the encoder as input (few items are absent) and then decoder is used to predict these items which are absent initially based on the encoded interpretation. The general SRec prototype is instantiated by us employing convolutional neural network (CNN) by giving emphasis on both e ciency and accuracy. The empirical studies and investigation on two real world datasets are conducted by us including short, medium and long sequences, which exhibits that SRec performs better than traditional sequential recommendation approaches.","PeriodicalId":55522,"journal":{"name":"Analele Stiintifice Ale Universitatii Ovidius Constanta-Seria Matematica","volume":"34 1","pages":"91 - 104"},"PeriodicalIF":0.6,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78808042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Dynamics and Ulam Stability for Fractional q-Difference Inclusions via Picard Operators Theory 基于Picard算子理论的分数阶q差包体动力学和Ulam稳定性

IF 0.6 4区数学

Analele Stiintifice Ale Universitatii Ovidius Constanta-Seria Matematica Pub Date : 2021-11-01 DOI: 10.2478/auom-2021-0031

S. Abbas, M. Benchohra, E. Karapınar

引用次数: 1

Bounds for the zeros of unilateral octonionic polynomials 单侧八元多项式的零点界

IF 0.6 4区数学

Analele Stiintifice Ale Universitatii Ovidius Constanta-Seria Matematica Pub Date : 2021-11-01 DOI: 10.2478/auom-2021-0043

R. Serôdio, P. Beites, J. Vitória

引用次数: 1

On the exponential Diophantine equation mx+(m+1)y=(1+m+m2)z 指数丢番图方程mx+(m+1)y=(1+m+m2)z

IF 0.6 4区数学

Analele Stiintifice Ale Universitatii Ovidius Constanta-Seria Matematica Pub Date : 2021-11-01 DOI: 10.2478/auom-2021-0032

M. Alan

引用次数: 0

Generalized Helicoidal Surfaces in Euclidean 5-space 欧几里得5空间中的广义螺旋曲面

IF 0.6 4区数学

Analele Stiintifice Ale Universitatii Ovidius Constanta-Seria Matematica Pub Date : 2021-11-01 DOI: 10.2478/auom-2021-0044

A. Uçum, M. Sakaki

引用次数: 0

Non-autonomous weighted elliptic equations with double exponential growth 具有双指数增长的非自治加权椭圆方程

IF 0.6 4区数学

Analele Stiintifice Ale Universitatii Ovidius Constanta-Seria Matematica Pub Date : 2021-11-01 DOI: 10.2478/auom-2021-0033

S. Baraket, Rached Jaidane

{"title":"Non-autonomous weighted elliptic equations with double exponential growth","authors":"S. Baraket, Rached Jaidane","doi":"10.2478/auom-2021-0033","DOIUrl":"https://doi.org/10.2478/auom-2021-0033","url":null,"abstract":"Abstract We consider the existence of solutions of the following weighted problem: {L:=-div(ρ(x)|∇u|N-2∇u)+ξ(x)|u|N-2u=f(x,u)inBu>0inBu=0on∂B, left{ {matrix{{L: = - divleft( {rho left( x right){{left| {nabla u} right|}^{N - 2}}nabla u} right) + xi left( x right){{left| u right|}^{N - 2}}} hfill & {u = fleft( {x,u} right)} hfill & {in} hfill & B hfill cr {} hfill & {u > 0} hfill & {in} hfill & B hfill cr {} hfill & {u = 0} hfill & {on} hfill & {partial B,} hfill cr } } right. where B is the unit ball of ℝN, N #62; 2, ρ(x)=(loge|x|)N-1 rho left( x right) = {left( {log {e over {left| x right|}}} right)^{N - 1}} the singular logarithm weight with the limiting exponent N − 1 in the Trudinger-Moser embedding, and ξ(x) is a positif continuous potential. The nonlinearities are critical or subcritical growth in view of Trudinger-Moser inequalities of double exponential type. We prove the existence of positive solution by using Mountain Pass theorem. In the critical case, the function of Euler Lagrange does not fulfil the requirements of Palais-Smale conditions at all levels. We dodge this problem by using adapted test functions to identify this level of compactness.","PeriodicalId":55522,"journal":{"name":"Analele Stiintifice Ale Universitatii Ovidius Constanta-Seria Matematica","volume":"5 1","pages":"33 - 66"},"PeriodicalIF":0.6,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80902038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 14

On the r-dynamic coloring of some fan graph families 关于扇形图族的r-动态着色

IF 0.6 4区数学

Analele Stiintifice Ale Universitatii Ovidius Constanta-Seria Matematica Pub Date : 2021-11-01 DOI: 10.2478/auom-2021-0039

Raúl M. Falcón, M. Venkatachalam, S. Gowri, G. Nandini

引用次数: 1

On numerical solution of nonlinear parabolic multicomponent diffusion-reaction problems 非线性抛物型多分量扩散反应问题的数值解

IF 0.6 4区数学

Analele Stiintifice Ale Universitatii Ovidius Constanta-Seria Matematica Pub Date : 2021-11-01 DOI: 10.2478/auom-2021-0040

G. Juncu, C. Popa, Gheorghe Sarbu

引用次数: 0

On the Complex and Chaotic Dynamics of Standard Logistic Sine Square Map 标准Logistic正弦平方映射的复杂混沌动力学研究

IF 0.6 4区数学

Analele Stiintifice Ale Universitatii Ovidius Constanta-Seria Matematica Pub Date : 2021-11-01 DOI: 10.2478/auom-2021-0041

S. Kumari, Renu Chugh, Radu Miculescu

引用次数: 4

On 1-absorbing δ-primary ideals 关于1吸收δ初级理想

IF 0.6 4区数学

Analele Stiintifice Ale Universitatii Ovidius Constanta-Seria Matematica Pub Date : 2021-11-01 DOI: 10.2478/auom-2021-0038

Abdelhaq El Khalfi, N. Mahdou, Ünsal Tekir, Suat Koç

引用次数: 5