282 research outputs found
Research on teaching reform of Police Law course
In the investigation of the internship situation of public security graduates, it is found that there is a big gap between the ability of public security theory and practice and the demand of employers. Therefore, professional courses should further enhance the scientific nature in supporting professional personnel training. As the core course of public security major, Police Regulations have found some pain points and difficulties in curriculum design and teaching implementation in the process of teaching results investigation and discipline reflection. Based on this, this course carries out a more scientific and targeted learning goal setting under the guidance of OBE concept to support the training of professional talents. On the basis of the constructivism teaching concept, the teaching reform of this course is explored, so that the spark of teaching activities and students' thinking can collide in the classroom, and under the guidance of teachers, it gradually constructs its own ideas and veins, roots theoretical knowledge in the fertile soil of public security practice, and truly achieves the goal of training applied police talents. Keywords: OBE concept; Teaching reform; Joint police examination DOI: 10.7176/NMMC/106-0
SAMSON: Spectral Absorption-fluorescence Microscopy System for ON-site-imaging of algae
This paper presents SAMSON, a Spectral Absorption-fluorescence Microscopy
System for ON-site-imaging of algae within a water sample. Designed to be
portable and low-cost for on-site use, the optical sub-system of SAMSON
consists of a mixture of low-cost optics and electronics, designed specifically
to capture both fluorescent and absorption responses from a water sample. The
graphical user interface (GUI) sub-system of SAMSON was designed to enable
flexible visualisation of algae in the water sample in real-time, with the
ability to perform fine-grained exposure control and illumination wavelength
selection. We demonstrate SAMSON's capabilities by equipping the system with
two fluorescent illumination sources and seven absorption illumination sources
to enable the capture of multispectral data from six different algae species
(three from the Cyanophyta phylum (blue-green algae) and three from the
Chlorophyta phylum (green algae)). The key benefit of SAMSON is the ability to
perform rapid acquisition of fluorescence and absorption data at different
wavelengths and magnification levels, thus opening the door for machine
learning methods to automatically identify and enumerate different algae in
water samples using this rich wealth of data
Analysis and Forecasting for Traffic Flow Data
In this thesis, a number of techniques related to Principal Component Analysis (PCA) are used to derive core traffic patterns from streams of traffic data on a large number of road segments. Using a few number of k hidden variables, we show that the traffic information on the road segments can be captured by k traffic patterns. The dimensionality of the correlated road segments is successfully reduced from n to a much smaller number k by applying techniques related to Principal Component Analysis (PCA), where n is the number of road segments and k is the number of hidden variables. We use the k nearest neighbor(KNN) method to predict the values of the hidden variables over small time windows. As a result, we are able to forecast the speeds for n road segments very quickly. Our results are aimed at network-level and real-time prediction. In general, the computation of PCA is computationally demanding when n is large. A more efficient online version of PCA, called PASTd algorithm is used to reduce the data dimension. As a result, our forecasting method is efficient, flexible, and robust
Optimal use of Charge Information for the HL-LHC Pixel Detector Readout
The pixel detectors for the High Luminosity upgrades of the ATLAS and CMS
detectors will preserve digitized charge information in spite of extremely high
hit rates. Both circuit physical size and output bandwidth will limit the
number of bits to which charge can be digitized and stored. We therefore study
the effect of the number of bits used for digitization and storage on single
and multi-particle cluster resolution, efficiency, classification, and particle
identification. We show how performance degrades as fewer bits are used to
digitize and to store charge. We find that with limited charge information (4
bits), one can achieve near optimal performance on a variety of tasks.Comment: 27 pages, 20 figure
Gender Bias in Large Language Models across Multiple Languages
With the growing deployment of large language models (LLMs) across various
applications, assessing the influence of gender biases embedded in LLMs becomes
crucial. The topic of gender bias within the realm of natural language
processing (NLP) has gained considerable focus, particularly in the context of
English. Nonetheless, the investigation of gender bias in languages other than
English is still relatively under-explored and insufficiently analyzed. In this
work, We examine gender bias in LLMs-generated outputs for different languages.
We use three measurements: 1) gender bias in selecting descriptive words given
the gender-related context. 2) gender bias in selecting gender-related pronouns
(she/he) given the descriptive words. 3) gender bias in the topics of
LLM-generated dialogues. We investigate the outputs of the GPT series of LLMs
in various languages using our three measurement methods. Our findings revealed
significant gender biases across all the languages we examined.Comment: 20 pages, 27 tables, 7 figures, submitted to ACL202
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