Second order online collaborative filtering by Lu, Jing, Hoi, Steven, Wang, Jialei, Zhao, Peilin

“…Unlike the regular first order CF algorithms (e.g., online gradient descent for CF) that converge slowly, in this paper, we present a new framework of second order online collaborative filtering, i.e., Confidence Weighted On- line Collaborative Filtering (CWOCF), which applies the second order online optimization methodology to tackle the online collaborative giltering task. …”
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Solving second order boundary value problems by discrete cubic splines by Chen, Fengmin, Wong, Patricia Jia Yiing

“…In this paper we use discrete cubic spline based on central differences to obtain approximate solution of a second order boundary value problem. It is shown that the method is of order 4 if a parameter takes a specific value, else it is of order 2. …”
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Second-order judgment problems : the impacts of perceived social distance on judgment making by Park, Mina, Oh, Poong

“…Judgment making about targets in information-abundant environments involve another level of judgement processes to sort out relevant and trustworthy information about the targets of judgment. We call this second-order judgment problems. The present study formulated second-order judgement problems into a theoretical model that focuses on the impacts of perceived social distance between a target and the informant who provides the information about the target on judgement formation processes. …”
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Multi-band second-order bandstop frequency selective structure with controllable band ratios by Abdelmottaleb Omar, Ahmed, Shen, Zhongxiang

“…A multi-band second-order bandstop frequency selective structure (FSS) is proposed. …”
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Design of variable linear phase FIR filters based on second order frequency transformations and coefficient decimation by Darak, Sumit Jagdish, Vinod, Achutavarrier Prasad, Lai, Edmund Ming-Kit

“…This paper presents the design of a variable linear phase finite impulse response filter based on second order frequency transformations and coefficient decimation. …”
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The second wave of COVID-19 isolations and social media use: examination from a stress-coping perspective by Zhang, Heng, Sun, Xiaobei

“…This study surveyed 756 Chinese individuals who experienced the second lockdown to discover how they utilized social media to combat stress. …”
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The Role of Animacy in Teiwa and Abui (Papuan) by Klamer, Marian, Kratochvil, Frantisek

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HogRider: Champion agent of Microsoft Malmo collaborative AI challenge by Xiong, Yanhai, Chen, Haipeng, Zhao, Mengchen, An, Bo

“…One key innovation of HogRider is a generalized agent type hypothesis framework to identify the behavior model of the other agents, which is demonstrated to be robust to observation uncertainty. On top of that, a second key innovation is a novel Q-learning approach to learn effective policies against each type of the collaborating agents. …”
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Measurement of angle of rotation using circular optical grating by Shang, H. M., Toh, S. L., Quan, Chenggen, Tay, Cho Jui, Fu, Yu

“…In the first method, the distorted grating is recorded off the mirror surface as though it were a diffuse surface. In the second method, the distorted grating is specularly reflected onto an opaque screen and the CCD camera subsequently records the grating image off this screen.…”
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An Improved MTI filter for Ground Clutter Reduction in UAV Classification by Wan, Fangyuan, Liu, Qinglai, Wang, Chen, Guo, Xin, Lin, Zhiping

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Nano-imaging collagen by atomic force, near-field and nonlinear microscope by Lim, Ken Choong, Tang, Jinkai, Li, Hao, Ng, Boon Ping, Kok, Shaw Wei, Wang, Qijie, Zhang, Ying

“…However, details about the origin of optical second harmonic signals from collagen fibrils at the molecular level are still not clear. …”
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Design and simulation of GRIN objective lenses for an imaging fiber based speckle metrology system by Prasad, A. S. Guru, Haridas, Aswin, Chan, Kelvin H. K., Murukeshan, V. M., Prabhathan, P.

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Intonation of angry and happy Singapore English acted speech by Koh, Rae Jia Xin, Tan, Ying Ying

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Reconfiguration algorithms for degradable VLSI arrays with switch faults by Zhu, Yuanbo, Wu, Jigang, Lam, Siew-Kei, Srikanthan, Thambipillai

“…The first approach extends the well-known existing algorithm with simple pre-processing and row bypass scheme. The second one employs a novel row and column rerouting scheme to maximize the size of the logical array. …”
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Sensor-based activity recognition via learning from distributions by Qian, Hangwei, Pan, Sinno Jialin, Miao, Chunyan

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Flow rate analysis of wastewater inside reactor tanks on tofu wastewater treatment plant by Mamat, Sintawardani, N, Astuti, J T, Nilawati, D, Wulan, D R, Muchlis, Sriwuryandari, L, Sembiring, T, Jern, Ng Wun

“…Initially, wastewater flowed into each reactor by a gravity mode with head difference between the second and third reactor was 15x10-2m. However, head loss at the second reactor was equal to the third reactor by 8,422 x 10-4m. …”
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When practitioners and scientists collide : an evidence-based activity for management education by Hartman, Kevin, Koh, Jaime, Rajaram, Kumaran

“…In this quasi-experimental study, our team of management educators and learning scientists tested an evidence-based learning activity designed to have students internalize the importance of empathy. 83 students enrolled in two sections of a second-year undergraduate management course completed a version of a voluntary online activity. …”
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Third Strategy in Tissue Engineering: Tissue Spheroids Encaged into Microscaffolds by Rezende, Rodrigo A., Pereira, Frederico D. A. S., Noritomi, Pedro Y., Da Silva, Jorge V. L., Mironov, Vladimir, Baptista, Leandra S., Silva, Karina R. Da, Borojevic, Radovan, Kasyanov, Vladimir, Ovsianikov, Aleksandr, Stampfl, Jurgen, Farsari, Maria

“…In this paper novel hybrid approach or so-called third strategy in tissue engineering which combines advantages of first and second approaches is presented. The novel concept of lockyballs or tissue spheroids encaged into interlockable synthetic microscaffolds is described.…”
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A comparison study on TDOA based localization algorithms for sensor networks by Qu, Xiaomei, Xie, Lihua

“…By employing the update covariance of the update localization of the two algorithms, it is shown that the second algorithm outperforms the first one. An illustrative example is included to validate our theoretic results.…”
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A local characterization of the graphs of alternating forms and the graphs of quadratic forms over GF(2) by Munemasa, A., Pasechnik, Dmitrii V., Shpectorov, Sergey V.

“…Let Γ be a connected locally Δ graph such that 1. the number of common neighbours of any pair of vertices at distance two is the same as in Alt(n,2). 2. the valency of the subgraph induced on the second neighbourhood of any vertex is the same as in Alt(n,2). …”
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