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| 2. |
- Gehrmann, Sebastian, et al.
(författare)
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GEMv2: Multilingual NLG Benchmarking in a Single Line of Code
- 2022
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Ingår i: Proceedings of the 2022 Conference on Empirical Methods in Natural Language Processing: System Demonstrations. - : Association for Computational Linguistics (ACL). ; , s. 266-281
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Konferensbidrag (refereegranskat)abstract
- Evaluations in machine learning rarely use the latest metrics, datasets, or human evaluation in favor of remaining compatible with prior work. The compatibility, often facilitated through leaderboards, thus leads to outdated but standardized evaluation practices. We pose that the standardization is taking place in the wrong spot. Evaluation infrastructure should enable researchers to use the latest methods and what should be standardized instead is how to incorporate these new evaluation advances.We introduce GEMv2, the new version of the Generation, Evaluation, and Metrics Benchmark which uses a modular infrastructure for dataset, model, and metric developers to benefit from each other’s work. GEMv2 supports 40 documented datasets in 51 languages, ongoing online evaluation for all datasets, and our interactive tools make it easier to add new datasets to the living benchmark.
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| 3. |
- Luo, Zhekai, et al.
(författare)
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Energetic Electron Microinjections Observed by MMS in the Dusk Plasma Sheet and Drift Resonance Interpretation
- 2022
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Ingår i: Geophysical Research Letters. - : American Geophysical Union (AGU). - 0094-8276 .- 1944-8007. ; 49:13
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Tidskriftsartikel (refereegranskat)abstract
- Microinjection phenomena, characterized by dispersive oscillations of electron fluxes at the Pc5 period and bi-directional pitch angle anisotropy, are frequently observed by Magnetospheric Multiscale in the dusk to midnight plasma sheet. In this paper, two such events are analyzed and the features of toroidal mode drift resonance measured meanwhile are shown in detail. The prominent observation is that the fluctuations of the electron flux and the electric field have either -90 degrees or +90 degrees phase difference at the resonant energy, and the phase difference rises as the energy increases. We extend the present theory for drift resonance of toroidal mode wave with only the equatorial moving electrons in a dipole field to include bouncing electrons. The predicted phase differences based on the new theory are consistent well with the observations in the microinjection events. It is thus suggested that drift resonance may act as the forming mechanism for the observed microinjections.
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| 4. |
- Pecunia, Vincenzo, et al.
(författare)
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Roadmap on energy harvesting materials
- 2023
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Ingår i: Journal of Physics. - : IOP Publishing. - 2515-7639. ; 6:4
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Tidskriftsartikel (refereegranskat)abstract
- Ambient energy harvesting has great potential to contribute to sustainable development and address growing environmental challenges. Converting waste energy from energy-intensive processes and systems (e.g. combustion engines and furnaces) is crucial to reducing their environmental impact and achieving net-zero emissions. Compact energy harvesters will also be key to powering the exponentially growing smart devices ecosystem that is part of the Internet of Things, thus enabling futuristic applications that can improve our quality of life (e.g. smart homes, smart cities, smart manufacturing, and smart healthcare). To achieve these goals, innovative materials are needed to efficiently convert ambient energy into electricity through various physical mechanisms, such as the photovoltaic effect, thermoelectricity, piezoelectricity, triboelectricity, and radiofrequency wireless power transfer. By bringing together the perspectives of experts in various types of energy harvesting materials, this Roadmap provides extensive insights into recent advances and present challenges in the field. Additionally, the Roadmap analyses the key performance metrics of these technologies in relation to their ultimate energy conversion limits. Building on these insights, the Roadmap outlines promising directions for future research to fully harness the potential of energy harvesting materials for green energy anytime, anywhere.
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| 6. |
- Xiong, Ailun, et al.
(författare)
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Social Capital and Total Factor Productivity : Evidence from Chinese Provinces
- 2017
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Ingår i: China & World Economy. - : Wiley-Blackwell. - 1671-2234 .- 1749-124X. ; 25:4, s. 22-43
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Tidskriftsartikel (refereegranskat)abstract
- The impact of social capital on economic development has been broadly studied by scholars. However, research in the Chinese context is relatively rare. Drawing upon data from the China General Social Survey, our results suggest that the enhancing effect of social capital on total factor productivity is very limited in the case of China. The network dimension of social capital is significant only in pooled OLS estimations, and trust as well as the participation dimension of social capital exert no impact across all estimations. Our interpretation is that this is partly due to the fact that trust, values and norms formed in civil society are inherently difficult to transmit to the market sector. Besides, the impact of social capital on economic performance is undermined when physical capital plays a significant role in production. We therefore propose that the effect of social capital on economic performance is contingent on localized social and economic conditions.
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| 7. |
- Xiong, A., et al.
(författare)
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Social networks, job satisfaction and job searching behavior in the Chinese labor market
- 2017
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Ingår i: China Economic Review. - : Elsevier. - 1043-951X. ; 43, s. 1-15
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Tidskriftsartikel (refereegranskat)abstract
- This study first investigates determinants of job searching strategies and then examines if social networks are connected with better job outcomes. Unlike previous studies that focus solely on income, this paper pays more heed to job satisfaction. Based on data drawn from China General Social Survey, we find that disadvantaged job seekers rely primarily on informal channels; whereas experienced and better-educated job seekers tend to search for jobs through formal channels. However, those reaping the largest benefit from using networks are the job seekers who are able to use formal and informal channels jointly. By disaggregating the whole sample, we further find that the promoting effect of network use is contingent on factors such as gender and types of jobs. Network use brings about larger benefits to female and job seekers target to prestigious occupations. Finally, it appears that whether a job seeker can receive influential help depends primarily on the social status of the contacts rather than their tie strength. The results of our paper thus urge us to examine the combination of different searching strategies rather than studying them separately.
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