Jason Wei, Kai Zou. Proceedings of the 2019 Conference on Empirical Methods in Natural Language Processing and 9th International Joint (EMNLP-IJCNLP). 2019.

We present EDA: easy data augmentation techniques for boosting performance on text classification tasks. EDA consists of four simple but powerful operations: synonym replacement, random insertion, swap, and deletion. On five tasks, we show that improves both convolutional recurrent neural networks. demonstrates particularly strong results smaller datasets; average, across datasets, training with while using only 50% the available set achieved same accuracy as normal all data. also performed...

Red mud as the main byproduct generated during alumina extraction from bauxite. Owing to high iron content in red and correlation between scandium leaching process, it is necessary extract further enrich advance for acid of scandium. In this research, theory segregation roasting ore phase reconstruction proposed, so that undergo a corresponding transformation, thereby achieving recovery magnetic separation concentrate by separation, enrichment tailings. On basis, effects temperature, time,...

In this study, segregation roasting and magnetic separation are used to extract nickel from a garnierite laterite ore. The ore containing 0.72% Ni, 0.029% Co, 8.65% Fe, 29.66% MgO, 37.86% SiO2 was collected in the Mojiang area of China. Garnierite Ni-bearing mineral; other main minerals were potash feldspar, forsterite, tremolite, halloysite, quartz, kaolinite iron phase transformations show that is transformed (Ni,Mg)O·SiO2·nH2O new mineral dominated by [Ni]Fe solid solution; changed Fe2O3...

Effective treatment of HIV since 1996 has reduced morbidity and mortality through virologic suppression. Combination antiretroviral therapy (cART) been recognized as key to the prevention drug resistance transmission infection. We used eighteen years outcomes in a long-standing cohort women describe longitudinal viral load trajectories; examine factors associated with sustained viremia mortality. analyzed data from DC WIHS > four semiannual visits using group-based logistic trajectory...

In this study, sulfuric acid leaching and gravity shaking-table separation by shaking a table are used to extract lead zinc from Pb-Zn oxidizing roasting cinder. The cinder—containing 16.9% Pb, 30.5% Zn, 10.3% Fe 25.1% S—was obtained sulfide ore in the Hanyuan area of China flotation-rotary kiln process. Anglesite oxide were main Pb-bearing minerals, while sulfate, ferrite Zn-bearing minerals. results show that part contained is transformed anglesite, 3PbO·PbSO4·H2O-dominated new mineral...

In this research, the coarse manganese concentrate was collected from a ore concentrator in Tongren of China, and contents iron were 28.63% 18.65%, respectively. The majority minerals occur rhodochrosite, limonite, quartz, olivine, etc. Calcium chloride, calcium hypochlorite, coke, placed roasting furnace to conduct segregation roasting, which resulted partial chlorination reaction produce FeCl3, ferric chloride reduced metallic adsorbed onto rhodochrosite broken down into oxide. Iron...

Abstract To accurately predict the aging population in China, a novel grey prediction model (CFODGMW(1,1, $$\alpha $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>α</mml:mi> </mml:math> ) model) is established this study. The CFODGMW(1,1, has all advantages of weighted least square method, combined fractional-order accumulation generation operation and with time power term, which makes it have excellent performance. Compared traditional based on method first-order...

In order to analysis the process of congestion diffusion in traffic network and obtain critical value congestion, this paper presented a coordination game model for diffusion. Through between individuals decision-making behavior travelers described network. And according pass through adjacent nodes network, built model, derived condition with method probability generation function. Finally, simulation influence on imposed by road structure distribution node degree. When results is same...

At present, the information security problems of smart city show a high incidence, and it is necessary to strengthen supervision city. In process supervision, there game relationship between local government enterprises. This paper firstly constructs matrices enterprises under static three dynamic reward punishment mechanisms, then conducts numerical simulation with help MATLAB arrive at optimal mechanism through comparison, finally explores influence change upper limit value each key...

In this study, there is 1.42% P2O5 in the P-containing V-Ti magnetite tailings Miyi Region of China, with valuable minerals mainly including apatite, and aluminosilicate as main gangue components. The direction flotation process was used to recover phosphorous from low-grade phosphorous-bearing tailings. results showed that an optimized concentrate a grade 31.35% recovery 88.02% obtained by one roughing, three scavengings, cleanings under roughing conditions, which employed pulp pH 9,...

This paper is to study the evolution of herding behaviors in public opinion propagation and present an analysis general rules using model behavior propagation. Through spreads among decision making individuals, this described process from perspective social networks. According Bayesian rule, analyzes conditional probability individuals builds a mathematical behavior, then derives occurrence condition evolution. Finally, puts forward some control strategies according behavior. It shows that...

At present, the problem of personal information security apps has attracted widespread attention from government and society, there is an urgent need for multiple subjects to participate in regulation together. Based on this, we first considered feedback users. Secondly, constructed evolutionary game model three-party collaborative supervision among local governments, app distribution platforms, Then stability equilibrium points their conditions are analyzed based Lyapunov's law. Finally,...

The rapid development of urban informatization is an important way for cities to achieve a higher pattern, but the accompanying information security problem become major challenge restricting efficiency development. Therefore, effective identification and assessment risks has key factor improve In this paper, risk method based on fuzzy theory neural network technology proposed help identify solve in informatization. Combined with ecology, establishes improved model from four aspects by using...

&lt;p&gt;The rapid development of urban informatization has led to a deep integration advanced information technology into life. Many decision-makers are starting alleviate the adverse effects this process through risk assessment. However, existing methods cannot effectively analyze internal and hierarchical relationships because excessive number indicators. Thus, it is necessary construct an indicator's dependency graph conduct comprehensive analysis solve problem. In study, we proposed...

In this study, a one-step rapid heating novel process was used to prepare high-purity anhydrous scandium chloride molten salt with low-purity oxide. High-purity ScCl3 as the Sc-bearing raw material for preparing master alloy. Inert gas enhance purity of and reduce hydrolysis rate scandium. The results show that (purity, 99.69%) content 29.61%, obtained, 1.19% under conditions used: removing ammonium chloride; residual crystal water temperature 400 °C; m(Sc2O3):m(NH4Cl) = 1:2.5; holding-time...

Despite the significant advancements in natural language processing capabilities demonstrated by large models such as ChatGPT, their proficiency comprehending and spatial information, especially within domains of 2D 3D route planning, remains notably underdeveloped. This paper investigates inherent limitations ChatGPT similar reasoning navigation-related tasks, an area critical for applications ranging from autonomous vehicle guidance to assistive technologies visually impaired. In this...

The internal resource allocation approach is proposed for the information security of smart cities using evolutionary game model. Focusing on cities, relationship among factors first analyzed, then directed connection graph and adjacency matrix are constructed to obtain its hierarchical structure diagram by calculating reachable matrix, thereby developing an explanatory model resources in cities. Furthermore, established, replicator dynamics used adjust Finally, three types typical problems...

In order to make up for the deficiency of enterprise threat intelligence response mechanism, a scientific evaluation model is proposed and risk empirically evaluated analyzed. The was constructed based on four main influencing factors personnel quality, software/hardware facilities, technical support, management awareness. RBF neural network improved by grey Wolf swarm optimization algorithm used training simulation, so as conduct in-depth analysis research. results show that: 1. can...