scholarly journals Using Visual Context and Region Semantics for High-Level Concept Detection

2009 ◽  
Vol 11 (2) ◽  
pp. 229-243 ◽  
Author(s):  
Phivos Mylonas ◽  
Evaggelos Spyrou ◽  
Yannis Avrithis ◽  
Stefanos Kollias
2021 ◽  
Vol 20 (No.4) ◽  
pp. 629-649
Author(s):  
Maha Thabet ◽  
Mehdi Ellouze ◽  
Mourad Zaied

Video concept detection means describing a video with semantic concepts that correspond to the content of the video. The concepts help to retrieve video quickly. These semantic concepts describe high-level elements that depict the key information present in the content. In recent years, many efforts have been done to automate this task because the manual solution is time-consuming. Nowadays, videos come with comments. Therefore, in addition to the content of the videos, the comments should be analyzed because they contain valuable data that help to retrieve videos. This paper focused especially on videos shared on social media. The specificity of these videos was the presence of massive comments. This paper attempted to exploit comments by extracting concepts from them. This would support the research effort that works only on the visual content. Natural language processing techniques were used to analyze comments and to filter words to retain only the ones that could be considered as concepts. The proposed approach was tested on YouTube videos. The results demonstrated that the proposed approach was able to extract accurate data and concepts from the comments that could be used to ease the retrieval of videos. The findings supported the research effort of working on the visual and audio contents of the videos.


2021 ◽  
Vol 5 (43) ◽  
Author(s):  
O. Kashshay

The article is dedicated to the study of artistic and cultural value of the Transcarpathian Art School as a significant cultural phenomenon that has gained considerable weight in the modern visual context. The relevance of the study for modern art space is highlighted.Emphasis is placed on the need to determine the artistic value of the works of representatives of the Transcarpathian Art School, as their widespread recognition in the modern Ukrainian artistic context is associated with high professionalism, unique creativity and emotional musical melody.General scientific, systematic, and art research methods are used. The object of research is Transcarpathian Art School and its founding artists. The subject of research is the cultural and artistic value of the Transcarpathian Art School in the context of modern Ukrainian art space.Socio-cultural aspects of the formation of the Transcarpathian art school in 1920s-1950s, the stages of formation of art education that preceded the formation of the painting movement are covered. The importance of each of the masters included in the cultural circle of the regional circle is emphasized. The special sound of works of Transcarpathians against the general background of art development in the USSR is noted.The dominant artistic and aesthetic qualities of their work are considered. The main features and peculiarities are emphasized. Such artistic features as a high level of professionalism and skill, the use of principles inherent in folk art, special attention to the color scheme, creative energy inherent in the best paintings of school representatives.Key words: Transcarpathian Art School, Transcarpathian Art, Anton Kashshay, Art of Ukraine, Art of the 20th century.


2021 ◽  
Author(s):  
Minju Kim ◽  
Adena Schachner

Listening to music activates representations of movement and social agents. Why? We ask whether high-level causal reasoning about how music was generated can lead people to link musical sounds with animate agents. To test this, we asked whether people (N=60) make flexible inferences about whether an agent caused musical sounds, integrating information from the sounds’ timing and from the visual context in which it was produced. Using a 2x2 within-subject design, we found evidence of causal reasoning: In a context where producing a musical sequence would require self-propelled movement, people inferred that an agent had been present causing the sounds. When the context provided an alternative possible explanation, this ‘explained away’ the agent, reducing the tendency to infer an agent was present for the same acoustic stimuli. People can use causal reasoning to infer whether an agent produced musical sounds, suggesting that high-level cognition can link music with social concepts.


Author(s):  
David P. Bazett-Jones ◽  
Mark L. Brown

A multisubunit RNA polymerase enzyme is ultimately responsible for transcription initiation and elongation of RNA, but recognition of the proper start site by the enzyme is regulated by general, temporal and gene-specific trans-factors interacting at promoter and enhancer DNA sequences. To understand the molecular mechanisms which precisely regulate the transcription initiation event, it is crucial to elucidate the structure of the transcription factor/DNA complexes involved. Electron spectroscopic imaging (ESI) provides the opportunity to visualize individual DNA molecules. Enhancement of DNA contrast with ESI is accomplished by imaging with electrons that have interacted with inner shell electrons of phosphorus in the DNA backbone. Phosphorus detection at this intermediately high level of resolution (≈lnm) permits selective imaging of the DNA, to determine whether the protein factors compact, bend or wrap the DNA. Simultaneously, mass analysis and phosphorus content can be measured quantitatively, using adjacent DNA or tobacco mosaic virus (TMV) as mass and phosphorus standards. These two parameters provide stoichiometric information relating the ratios of protein:DNA content.


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