1,974 research outputs found
Concurrent real-time optimization of detecting unexpected tasks in IoT design process using GA
In this paper we present a genetic algorithm for concurrent real-time optimization for detecting unexpected tasks in IoT design process. The process can be split into two phases which impact each other in real-time. Modification of one phase modifies the second one. The algorithm detects unexpected tasks as a connection of parts of predicted tasks. Therefore, there can exist more than one way to resolve the unexpected situation. The algorithm searches for optimal solution making concurrent optimization of two phases of the design process. Use of genetic algorithm helps also to eliminate connections of subtasks which do not give a good result
Stylistic Fingerprints, POS-tags and Inflected Languages: A Case Study in Polish
In stylometric investigations, frequencies of the most frequent words (MFWs)
and character n-grams outperform other style-markers, even if their performance
varies significantly across languages. In inflected languages, word endings
play a prominent role, and hence different word forms cannot be recognized
using generic text tokenization. Countless inflected word forms make
frequencies sparse, making most statistical procedures complicated. Presumably,
applying one of the NLP techniques, such as lemmatization and/or parsing, might
increase the performance of classification. The aim of this paper is to examine
the usefulness of grammatical features (as assessed via POS-tag n-grams) and
lemmatized forms in recognizing authorial profiles, in order to address the
underlying issue of the degree of freedom of choice within lexis and grammar.
Using a corpus of Polish novels, we performed a series of supervised authorship
attribution benchmarks, in order to compare the classification accuracy for
different types of lexical and syntactic style-markers. Even if the performance
of POS-tags as well as lemmatized forms was notoriously worse than that of
lexical markers, the difference was not substantial and never exceeded ca. 15%
Modeling the dynamics of language change: logistic regression, Piotrowski's law, and a handful of examples in Polish
The study discusses modeling diachronic processes by logistic regression. The
phenomenon of nonlinear changes in language was first observed by Raimund
Piotrowski (hence labelled as Piotrowski's law), even if actual linguistic
evidence usually speaks against using the notion of a "law" in this context. In
our study, we apply logistic regression models to 9 changes which occurred
between 15th and 18th century in the Polish language. The attested course of
the majority of these changes closely follow the expected values, which proves
that the language change might indeed resemble a nonlinear phase change
scenario. We also extend the original Piotrowski's approach by proposing
polynomial logistic regression for these cases which can hardly be described by
its standard version. Also, we propose to consider individual language change
cases jointly, in order to inspect their possible collinearity or, more likely,
their different dynamics in the function of time. Last but not least, we
evaluate our results by testing the influence of the subcorpus size on the
model's goodness-of-fit
Digging for Dark Matter: Spectral Analysis and Discovery Potential of Paleo-Detectors
Paleo-detectors are a recently proposed method for the direct detection of
Dark Matter (DM). In such detectors, one would search for the persistent damage
features left by DM--nucleus interactions in ancient minerals. Initial
sensitivity projections have shown that paleo-detectors could probe much of the
remaining Weakly Interacting Massive Particle (WIMP) parameter space. In this
paper, we improve upon the cut-and-count approach previously used to estimate
the sensitivity by performing a full spectral analysis of the background- and
DM-induced signal spectra. We consider two scenarios for the systematic errors
on the background spectra: i) systematic errors on the normalization only, and
ii) systematic errors on the shape of the backgrounds. We find that the
projected sensitivity is rather robust to imperfect knowledge of the
backgrounds. Finally, we study how well the parameters of the true WIMP model
could be reconstructed in the hypothetical case of a WIMP discovery.Comment: 14 pages, 5 figures, code available at
https://github.com/tedwards2412/paleo_detectors/ . v2: Added additional
analysis theory details, matches version published in PR
Choosing optimal rapid manufacturing process for thin-walled products using expert algorithm
Choosing right Rapid Prototyping technology is not easy, especially for companies inexperienced with that group of manufacturing techniques. Paper summarizes research focused on creating an algorithm for expert system, helping to choose optimal process and determine its parameters for thin-walled products rapid manufacturing. Research was based upon trial manufacturing of different thin-walled items using various RP technologies. Products were categorized, each category was defined by a set of requirements. Basing on research outcome, main algorithm has been created. Next step was developing detailed algorithms for optimizing particular methods. Implementation of these algorithms brings huge benefit for recipients, including cost reduction, supply time decrease and improvements in information flow.Peer Reviewe
Exhaled eicosanoids and biomarkers of oxidative stress in exacerbation of chronic obstructive pulmonary disease
What is the pro-inflammatory dietary model associated with?
Introduction. Cellular potential disruption leads to several polyplatoligias due to increased systemic inflammation, as a consequence of the visualized multivariate appearance. Objective. To highlight the relevance of the pathomechanism of oxidative stress and oxidative potential about changes in metabolic mechanisms at the cellular level, predisposing to polypatoligia and the development of destructive transformations visualized in outward appearance targeted by a pro-inflammatory nutritional model. Material and methods. A sample of 226 subjects was selected by random selection of respondents. The author's questionnaire concerned metric data, level of physical exercise, diagnosed disease entity, inflammatory changes within the body dermis, and level of frequency of consumption of selected food groups. The obtained results were verified by statistical analysis with a significance level of α <0.05. Results. The subject was characterized by a diagnosed multimorbidity at the level of (approximately 20%) about the individual clinical course of the respondent. The anthropometric parameter BMI without sex division (due to predominance of female subjects) among 55% of the whole group was within the normal range, constituting 24.4 kg/m2, showed a significant correlation directed at the pathomechanism of multimorbidity at the level of 78% in physical appearance. Conclusions. The pathomechanism of developing polyposis is significantly associated with the appearance of changes within the tissues translated into the shell system and anthropometric measurements related to the value of body mass index. Multivariable within the common coat is significantly dependent on the implemented phytotherapeutics - bioactive components derived from oregano, to obtain high antioxidant potential
THE EFFECT OF HOUSING SYSTEM ON THE INCIDENCE OF INTESTINAL PARASITE INFESTATION IN PIGS
The aim of the study was to compare the intestinal parasite fauna occurring in pigs kept in different rearing conditions (group A – extremely extensive, B – extensive and C – intensive). In the period between March and July 2010, 345 samples of faeces from piglets (125), weaners (60), fatteners (94) and sows (66) were collected and tested, using standard coproscopic methods. Six parasitic species, belonging to phylum Nematoda (Strongyloides ransomi, Ascaris suum, Oesophagostomum dentatum, Trichuris suum) and to phylum Apicomplexa (Isospora suis and Eimeria debliecki) were diagnosed. Eggs of Toxascaris leonina, a parasitic roundworm mostly affecting the members of the Canidae and Felidae families, not encountered in pigs until now, were found in the faeces of fatteners. The highest level of parasite invasion was recorded in pigs from group A and B; they were multi-species invasions. Parasitic species found in faeces not only bring economic losses, but they may also be dangerous for human health and life, which indicates the necessity to implement parasitological screening protocols, especially in the extensive rearing conditions
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