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| 1 | 简化的Slope One在线评分预测算法显示文摘个性化推荐系统是大数据时代信息过滤的有效手段,影响推荐系统预测准确性的主要原因之一是数据稀疏性。Slope One评分预测推荐算法采用简单的线性回归模型解决数据稀疏问题,具有易于实现、评分预测速度快的特点,但它在训练阶段生成项目之间评分差的时间和空间消耗大,训练阶段需离线进行。为解决以上问题,提出一种简化的Slope One算法——Simplified Slope One,以两项目历史平均分之差代替项目评分差,来降低算法的时间复杂度和空间复杂度,简化耗时最多的生成项目之间评分差的过程,以有效提高评分数据的利用率,对稀疏数据有更好的适应性。在Movielens数据集上利用按照时间戳排序后划分的测试集进行实验,结果表明Simplified Slope One算法对评分预测的准确性与原Slope One算法接近,但时间复杂度和空间复杂度均低于原Slope One算法,更适合在数据规模增长迅速的大型推荐系统中应用。 | 孙丽梅 李悦 Ejike Ifeanyi Michael 曹科研 | 2018 | 计算机应用2018，38，2： | 3 |
| 2 | Prevalence and impact on survival of positive surgical margins in partial nephrectomy for renal cell carcinoma: a population‐based study显示文摘 | Ifeanyi Ani Antonio Finelli Shabbir M.H. Alibhai Narhari Timilshina Neil Fleshner Robert Abouassaly | 2013 | BJU Int2013，，： | 2 |
| 3 | Aging characteristics and high temperature tensile properties of Mg-Gd-Y-Zr alloys显示文摘 | Ifeanyi Anthony Anyyanwu Shigeharu Kamado and Yo Kojima | 2001 | Materials Tractions2001，42，7： | 1 |
| 4 | Knowledge And Practices Among Medical AbortionSeekers In Southeastern Nigeria显示文摘 | Echendu Dolly Adinma Joseph Ifeanyi Brian-D Adinma Chima Iw-uoha | 2012 | The Southeast Asian journal oftropical medicine and public health2012，43，2： | 1 |
| 5 | Effect of substituting cerium-rich mischmetal with lanthanum on high temperature properties of die-cast Mg-Zn-Al-Ca-RE alloys显示文摘 | IFEANYI A Anyanwua YASUHIRO Gokan ATSUYA Suzuki | 2004 | Materials Science and Engineering A2004，380，： | 1 |
| 6 | Development of new die-castable Mg-Zn-Al-Ca-REalloys for high temperature applications显示文摘 | Ifeanyi A Anyanwu Yasuhiro Gokan Shuuhei Nozawa | 2003 | MaterialsTransactions2003，44，4： | 1 |
| 7 | Effect of substituting cerium-rich mischmetal with lanthanum on high temperature properties of die-cast Mg-Zn-Al-Ca-RE alloys显示文摘 | Ifeanyi A Anyanwu Yasuhiro Gokan | 2004 | Materials Science and Engineering2004，380，： | 1 |
| 8 | Effect of substituting cerium-rich mischmetal with lanthanum on high temperature properties of die-cast Mg-Zn-Al-Ca-RE alloys显示文摘 | Anyanwua | 2004 | Materials Science and Engineering A2004，，380： | 1 |
| 9 | Effect of substituting cerium-rich mischmetal with lanthanum on high temperature properties of die-cast Mg-Zn-Al-Cz-RE alloys显示文摘 | Ifeanyi A Anyanwua | 2004 | Materials Science and Engineering A2004，，380： | 1 |
| 10 | Aging characteristic and high temperature tensile properties of Mg-Gd-Y-Zr alloys 显示文摘 | Ifeanyi Anthony Anyanwu Shigeharu Kamado Yo Kojima | 2002 | Materlals Transactions2002，42，7： | 1 |
| 11 | Asymptomatic malaria parasitemia does not induce additional oxidative stress in pregnant women of South East Nigeria显示文摘Objective:To determine the relationship between asymptomatic malaria parasitemia and some oxidative stress parameters in pregnant Nigerian women.Methods:This is a cross-sectional study involving 130 normal pregnant women at various trimesters,who were attending antenatal clinic at the University of Nigeria Teaching Hospital(UNTH) and Kenechukwu Specialist Hospital in Enugu.A comparable group(control),made of 30 non pregnant women was also recruited.After a 24 hour dietary recall,serum levels of vitamin A,C and malondialdehyde(MDA) were determined by colorimetric method,while vitamin E was determined by absorptiometric method.Results:There were no statistically significant differences in age,parity,estimated calorie,vitamins A,C and E intake between the pregnant and non pregnant groups(P>0.05).The serum level of the vitamins(umol/L) and MDA(umol/L) in control,1st,2nd and 3rd trimesters respectively were:(l)Vitamin A:1.6±0.36 vs 0.6±0.26 vs 0.62±0.33 vs 0.46±0.21(P<0.0001);(2) Vitamin C:75.65±14.15 vs 62.97±24.4 vs 37.85±15.19 vs 28.94±8.52(P<0.0001);(3) Vitamin E:3.01±1.32 vs 3.45±2.01 vs 9.36±2.75 vs 9.82±2.97(P<0.0001);(4) MDA:1.42±0.02 vs 1.61±0.02 vs 1.79±0.02 vs 2.03±0.05(P<0.0001).However,there were no significant changes in the serum level of the vitamins and MDA between the positive and the negative parasitemia subjects(P>0.05). Conclusions:Asymptomatic malaria parasitemia does not induce additional oxidative stress on pregnant women in Nigeria.The enormity of acute and complicated attack should be further investigated. | Uchenna Ifeanyi Nwagha Tochukwu Christopher Okeke Theresa Ukamaka Nwagha Fidelis Ebele Ejezie Sylvester Ogbonna Ogbodo Cyril Chukwudi Dim Bond Ugochukwu Anyaehie | 2011 | Asian Pacific Journal of Tropical Medicine2011，4，3： | 1 |
| 12 | Farm animal genomics and informatics:an update显示文摘 | AHMED F IFEANYI A KENNETH D E | 2005 | Nucleic Acids Research2005，33，19： | 1 |
| 13 | Aging characteristic and high temperature tensile properties of Mg-Gd-Y-Zr alloys 显示文摘 | Ifeanyi Anthony Anyanwu Shigeharu Kamado Yo Kojima | 2002 | Materlals Transactions2002，42，7： | 1 |
| 14 | Molecular characterization and antibiotic resistance of Salmonella in children with acute gastroenteritis in Abuja, Nigeria显示文摘 | Ifeanyi C I C Bassey B E Floreche N | 2014 | J lnfectDev Count2014，8，6： | 1 |
| 15 | Effect of substituting cerium-rich mischmetal with lanthanum on high temperature properties of die-east Mg-Zn-A1- Ca RE alloys显示文摘 | IFEANYI A | 2004 | Materials Science and Engineering2004，380，： | 1 |
| 16 | Effect of substituting cerium-rich mischmetal with lanthanum on highternperature properties of die-cast Mg-Zn-A1-Ca-RE alloys 显示文摘 | Ifeanyi A A Yasuhiro G N Atsuya S | 2004 | Materials Science and Engineering A2004，380，： | 1 |
| 17 | Effect of substituting cerium-rich mischmetal with lanthanum on high temperature properties of die-cast Mg–Zn–Al–Ca–RE alloys显示文摘 | Ifeanyi A Anyanwu Yasuhiro Gokan Atsuya Suzuki Shigeharu Kamado Yo Kojima Suguru Takeda Taketoshi Ishida | 2004 | Materials Science & Engineering A2004，，1： | 1 |
| 18 | Passive protection of mice with antiserum to neuraminidase from Pasteurella multocida serotype A显示文摘 | IFEANYI F I BAILIE W E | 1992 | Vet Res Comm1992，16，2： | 1 |
| 19 | Development of new dietastable Mg-Zn-Al-Ca-RE alloys for high temperature applications显示文摘 | IFEANYI A A YASUHIRO G ATSUYA S SHIGEHARU K YO K SUGUMI T TAKETOSH I | 2003 | Materials Transanctions2003，44，4： | 1 |
| 20 | Development of new die-astable Mg-Zn-Al-Ca-RE alloys for high temperature applications显示文摘 | IFEANYI A ANYANWU YASUHIRO G | 2003 | Materials Transactions2003，44，4： | 1 |
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