FiBiNet++: Reducing Model Size by Low Rank Feature Interaction Layer for CTR Prediction

Click-Through Rate (CTR) estimation has become one of the most fundamental tasks in many real-world applications and various deep models have been proposed. Some research has proved that FiBiNet is one of the best performance models and outperforms all other models on Avazu dataset. However, the large model size of FiBiNet hinders its wider application. In this paper, we propose a novel FiBiNet++ model to redesign FiBiNet's model structure, which greatly reduces model size while further improves its performance. One of the primary techniques involves our proposed "Low Rank Layer" focused on feature interaction, which serves as a crucial driver of achieving a superior compression ratio for models. Extensive experiments on three public datasets show that FiBiNet++ effectively reduces non-embedding model parameters of FiBiNet by 12x to 16x on three datasets. On the other hand, FiBiNet++ leads to significant performance improvements compared to state-of-the-art CTR methods, including FiBiNet

Molecular cloning, sequence analysis and structure prediction of the related to b0,+ amino acid transporter (rBAT) in Cyprinus carpio L.

In this study, the full-length cDNA of basic amino acid transporter gene rBAT was cloned from intestinal cells of Cyprinus carpio L. using reverse transcription polymerase chain reaction (RT-PCR) and rapid-amplification of cDNA ends (RACE) methods. The amplified product was 2370 bp, including a 42 bp 5'-untranslated region, a 288 bp 3'-untranslated region, and a 2040 bp open reading frame (ORF), which encoded 679 amino acids. The predicted amino acid sequence showed high similarity with that of zebrafish (83.5%), and low similarity with that of rat (50.90%). The 3-D protein models were predicted by the comparative protein modeling program SWISS-MODEL. The prediction result displayed that the Cyprinus carpio L. rBAT had a hydrophilic cytoplasmic N terminus, a single membrane-spanning domain, and an extracellular C terminus. The structural core was a β-sheet at the N terminus. The rBAT associates with the light subunit b0,+AT by a disulfide bridge with conserved cysteine residues (residues 109). A better understanding of the functional roles and regulation mechanism of rBAT would provide unique opportunities to investigate the biochemical processes underlying amino acid metabolism in C. carpio L., and support the foundation for improving aquaculture culture of C. carpio L.Keywords: rBAT gene, cDNA sequence analysis, protein tertiary structure, Cyprinus carpio

Controlled shaped-charge blasting technology for deep underground tunnel engineering

S brzim razvojem gospodarstva i društva značajno je porasla potražnja za mineralnim sirovinama i energijom. Međutim, teško je poboljšati učinkovitost miniranja i kontrolirati stabilnost okolnih stijena tijekom izrade konstrukcija u dubokom podzemlju. U ovom je radu kao tehnička osnova upotrijebljen duboki podzemni tunel reverzibilne hidroelektrane Tianchi u Kini. Na temelju stanja preraspodjele naprezanja okolnih stijena nakon iskopa miniranjem, teorijskim analizama, numeričkim simulacijama i in situ ispitivanjima istraženi su učinci širenja pukotina i dinamički odziv okolne stijene na temelju različitih metoda miniranja. Provedena je analiza mehanizma usmjerenoga stvaranja pukotina s obzirom na utjecaj razmaka bušotina i in situ naprezanja. Pokazalo se da početno naprezanje tla potiče širenje pukotina pri miniranju u konturnoj bušotini nastaloj glatkim miniranjem u smjeru pravca minske bušotine. Rezultati testiranja pokazali su da je primjenom kontroliranih metoda miniranja kumulativnim nabojem podzemnih tunela moguće povećati stopu iskorištenosti eksploziva, smanjiti vibracije pri miniranju i postići značajan učinak na usmjereno formiranje pukotina. Rezultati istraživanja od velike su važnosti za građevinarstvo jer mogu dovesti do poboljšanja tehnologije miniranja, učinka stvaranja kontura miniranjem i kontrole stabilnosti okolne stijene.With the rapid development of the economy and society, the demand for mineral resources and energy has increased rapidly. However, it is difficult to improve the efficiency of blasting construction and control the stability of the surrounding rock in deep underground engineering. In this study, the deep underground tunnel of the Tianchi pumped-storage hydropower station in China was considered as the engineering background. Based on the stress redistribution state of the surrounding rock after blasting excavation, the crack propagation effect and dynamic response of the surrounding rock under different controlled blasting methods were studied through theoretical analyses, numerical simulations and in situ tests. The mechanism of directional crack formation was analysed by considering the influence of hole spacing and in situ stress. It was shown that the initial ground stress was conducive to the propagation of the blasting crack in the contour hole of smooth blasting towards the direction line of the blast hole. The test results showed that using controlled shaped-charge blasting methods in the blasting excavation of underground tunnels can improve the utilisation rate of explosives, reduce blasting vibration and achieve a significant effect on directional crack formation. The research results have important engineering significance as they can lead to improvements in the blasting technique, a contour-forming effect of the blasting excavation and control of the stability of the surrounding rock

Near-infrared Hong-Ou-Mandel interference on a silicon quantum photonic circuit

Near-infrared Hong-Ou-Mandel quantum interference is observed in silicon nanophotonic directional couplers with raw visibilities on-chip at 90.5%. Spectrally-bright 1557-nm two-photon states are generated in a periodically-poled KTiOPO4 waveguide chip, serving as the entangled photon source and pumped with a self-injection locked laser, for the photon statistical measurements. Efficient four-port coupling in the communications C-band and in the high-index-contrast silicon photonics platform is demonstrated, with matching theoretical predictions of the quantum interference visibility. Constituents for the residual quantum visibility imperfection are examined, supported with theoretical analysis of the sequentially-triggered multipair biphoton contribution and techniques for visibility compensation, towards scalable high-bitrate quantum information processing and communications.Comment: 15 pages, 6 figure

Reliability Evaluation of RC Columns with Wind-Dominated Combination Considering Random Biaxial Eccentricity

Reinforced concrete (RC) columns in frame structures are often subjected to biaxial bending and axial compression under both horizontal loads (e.g., wind load in a given direction) and vertical loads (e.g., gravity). Owing to the random properties of loads, it is important to consider the uncertainties of biaxial eccentricity. However, the fixed eccentricity criterion used in the conventional design methods cannot capture the effects of random biaxial eccentricity on reliability. Based on the reciprocal load method, the reliability is analyzed for columns with both the fixed eccentricity and random eccentricity criteria by Monte Carlo simulation. It is demonstrated that random biaxial eccentricity has a significant influence on the reliability of RC columns with wind-dominated combination

Element-specific spin and orbital moments and perpendicular magnetic anisotropy in Ta/CoFeB/MgO structures

Perpendicular magnetic anisotropy (PMA) in the Ta/CoFeB/MgO system has been studied using x-ray magnetic circular dichroism and vibrating sample magnetometry. The ratios of the orbital to spin magnetic moments of Co atoms in the Ta/CoFeB/MgO structures with PMA have been found to be enhanced by 100%, compared with the Ta/CoFeB/Ta structure without PMA. The orbital moments of Co are as large as 0.30 μ B, more than half of their spin moments in the perpendicularly magnetized Ta/CoFeB/MgO structures. The results indicate that the PMA observed in the CoFeB/MgO structures is related to the increased spin-orbital coupling of the Co atoms. This work offers experimental evidence of the correlation between PMA and the element-specific spin and orbital moments in the Ta/CoFeB/MgO systems

Paradigm of magnetic domain wall-based In-memory computing

While conventional microelectronic integrated circuits based on electron charges approach the theoretical limitations in foreseeable future, next-generation nonvolatile logic units based on electron spins have the potential to build logic networks of low power consumption. Central to this spin-based architecture is the development of a paradigm for in-memory computing with magnetic logic units. Here, we demonstrate the basic function of a transistor logic unit with patterned Y-shaped NiFe nanowires by gate-controlled domain-wall pinning and depinning. This spin-based architecture possesses the critical functionalities of transistors and can achieve a programmable logic gate by using only one Y-shaped nanostructure, which represents a universal design currently lacking for in-memory computing