Search results for "Networks"
showing 10 items of 3260 documents
Anomaly Detection in Traffic Surveillance Videos Using Deep Learning
2022
In the recent past, a huge number of cameras have been placed in a variety of public and private areas for the purposes of surveillance, the monitoring of abnormal human actions, and traffic surveillance. The detection and recognition of abnormal activity in a real-world environment is a big challenge, as there can be many types of alarming and abnormal activities, such as theft, violence, and accidents. This research deals with accidents in traffic videos. In the modern world, video traffic surveillance cameras (VTSS) are used for traffic surveillance and monitoring. As the population is increasing drastically, the likelihood of accidents is also increasing. The VTSS is used to detect abno…
Josephson Traveling Wave Parametric Amplifiers as Non-Classical Light Source for Microwave Quantum Illumination
2021
Abstract Detection of low-reflectivity objects can be enriched via the so-called quantum illumination procedure. In order that this quantum procedure outperforms classical detection protocols, entangled states of microwave radiation are initially required. In this paper, we discuss the role of Josephson Traveling Wave Parametric Amplifiers (JTWPAs), based on circuit-QED components, as suitable sources of a two-mode squeezed vacuum state, a special signal-idler entangled state. The obtained wide bandwidth makes the JTWPA an ideal candidate for generating quantum radiation in quantum metrology and information processing applications.
Sociālo tīklu kā mārketinga instrumenta izmantošana
2015
Maģistra darba „Sociālo tīklu kā mārketinga instrumenta izmantošana” mērķis ir, pamatojoties uz sociālo tīklu mārketinga analīzi, uzņēmumu un sociālo tīklu lietotāju novērtējuma, izpētīt vai sociālie tīkli ietekmē patērētāju viedokļus un vai ar to palīdzību ir iespējams piesaistīt jaunus un lojālus klientus. Maģistra darbs sastāv no ievada, četrām nodaļām, secinājumiem un priekšlikumiem. Pirmajā nodaļā tika apskatīta teorētiskā bāze un sociālo tīklu pielietošana pasaulē un Latvijā. Otrajā nodaļā tika analizētas sociālo tīklu izmantošanas iespējas mārketingā. Trešajā nodaļā tika analizētas uzņēmumu lapas sociālajos tīklos. Ceturtajā nodaļā ir veikts uzņēmumu un sociālo tīklu lietotāju pētīju…
Sociālie tīkli kā produkta virzīšanas un pārdošanas rīks augstskolu izvēles kontekstā.
2019
Bakalaura darba tēma ir “Sociālie tīkli kā produkta virzīšanas un pārdošanas rīks augstskolu izvēles procesā”. Darba mērķis ir, balstoties uz teorijas atziņām par sociālajiem tīkliem un veiktās aptaujas rezultātiem, novērtēt sociālos tīklus kā mārketinga instrumentu un tā efektivitāti augstskolu izvēles veiksmīgai virzīšanai, atklāt nepilnības un sniegt priekšlikumus to novēršanai Darbs sastāv no 3 nodaļām. 1. nodaļā ir raksturoti sociālie tīkli mārketinga kontekstā kā virzīšanas instruments un tā teorētiskie aspekti. 2. nodaļā ir analizēti pieejamie statistikas dati par sociālo tīklu lietošanas tendencēm, kā arī par augstskolu jau esošajām mārketinga aktivitātēm sociālajos tīklos. Darba tr…
Validation procedures in radiological diagnostic models. Neural network and logistic regression
1999
The objective of this paper is to compare the performance of two predictive radiological models, logistic regression (LR) and neural network (NN), with five different resampling methods. One hundred and sixty-seven patients with proven calvarial lesions as the only known disease were enrolled. Clinical and CT data were used for LR and NN models. Both models were developed with cross validation, leave-one-out and three different bootstrap algorithms. The final results of each model were compared with error rate and the area under receiver operating characteristic curves (Az). The neural network obtained statistically higher Az than LR with cross validation. The remaining resampling validatio…
The Affordances of Reading/Writing on Paper and Digitally in Finland
2014
The aim of this study is to investigate the impact of digital technologies on reading and writing in Finland. The perceived affordances of reading and writing on paper and digitally are compared by analysing written essays collected from 25 communication students in 2013. Research design is replicated from a study of Fortunati and Vincent that concerns Italian students. Results show that Finnish students perceive more positive than negative affordances regarding reading on paper, while reading on screen attracts fewer virtues. In this respect, results are in line with the Italian study. Unlike in Italy, students in Finland value writing on a keyboard especially because it enables editing th…
Reward-based crowdfunding campaigns: Informational value and access to venture capital
2018
We consider an entrepreneur who designs a reward-based crowdfunding campaign when the campaign provides a signal about the future demand for the product and subsequent venture capital is needed. We find that both the informativeness of the campaign and considerations related to gaining access to venture capital funding affect the entrepreneur’s choice of campaign instruments, as well as her decision of whether to run a campaign. In particular, entrepreneurs should launch the campaign either when it is highly informative or when it is not informative at all. For relatively low levels of informativeness, but not so low that the venture capitalist (VC) completely ignores the campaign outcome …
Key factors of information management for crowdfunding investor satisfaction
2021
Abstract Crowdlending platforms are becoming increasingly important as a collective financing mechanism for entrepreneurs and small and medium-sized enterprises (SMEs), especially those at an early stage. This study, which is based on a survey of investors on a Spanish crowdlending platform, uses fuzzy-set qualitative comparative analysis (fsQCA) to examine investor satisfaction with crowdlending platforms. Specifically, the study examines communication policies and the quality of the investor experience based on the information provided by these platforms. The value of this article lies in its examination of the antecedents of crowdlending investor satisfaction. The analysis shows that the…
Family business internationalisation and networks: emerging pathways
2017
Purpose The aim of this study is twofold: to provide a meta-synthesis of the current state of knowledge in family business (FB) internationalisation research, adopting a network perspective, and to highlight emerging themes that may set the stage for future work on FB internationalisation, for the benefit of researchers adopting a network perspective. Design/methodology/approach To address the twofold purpose of the study, the current paper provides a state-of-the-art review of 25 peer-reviewed journal articles published from 1993 to 2014. This study also presents a meta-synthesis of the theoretical approaches, key findings and concepts that were pinpointed in the review, and proposes emer…
Business continuity of business models : Evaluating the resilience of business models for contingencies
2019
Company business models are vulnerable to various contingencies in the business environment that may unexpectedly render their business logic ineffective. In particular, technological advancements, such as the Internet of things, big data, sharing economy and crowdsourcing, have enabled new forms of business models that can effectively and abruptly make traditional business models obsolete. By disrupting or even diminishing companies’ revenue streams, environmental contingencies may present a significant threat to business continuity (BC). Evaluating the resilience of business models against these contingencies should therefore be a core area of BC. However, existing BC approaches tend to f…