| Literature DB >> 32773370 |
Xanat Vargas Meza1, Toshimasa Yamanaka2.
Abstract
BACKGROUND: Local and organic foods have shown increased importance and market size in recent years. However, attitudes, sentiment, and habits related to such foods in the context of video social networks have not been thoroughly researched. Given that such media have become some of the most important venues of internet traffic, it is relevant to investigate how sustainable food is communicated through such video social networks.Entities:
Keywords: YouTube; food; framing; local; organic; semantic analysis; sentiment analysis; social networks
Mesh:
Year: 2020 PMID: 32773370 PMCID: PMC7445618 DOI: 10.2196/16761
Source DB: PubMed Journal: J Med Internet Res ISSN: 1438-8871 Impact factor: 5.428
Condensed frame packages for sustainable food products.
| Frame | Emotional basis | Key concepts | Visual cues | Textual cues |
| Responsibility | Endearment | Accountability and vulnerability | Children, fragile plants, and young animals | Caring, future generations, our children, and vulnerability |
| Undermining of foundations | Alarm and concern | Balance, base, complex systems, and links | Interconnections between elements in the ecosystem | Fragile balance, mutual dependency, and unstable |
| Frankenstein | Anxiety and unscrupulousness | Apocalypse, Pandora’s box, and sorcerer’s apprentice | Monsters and skulls | Frankenstein food, poison, and risks |
| Natural goodness | Admiration and astonishment | Authenticity, good taste, health, and purity | Idyllic nature and products | Natural, pure, and taste |
| Progress | Trust | Modernization and progress | High-tech tools | A better world, constant striving, and technology |
| Good mother | Gratitude, enjoyment, and love | Freedom of choice and great variety of products | Pleasure of shopping and rich harvest | Friendliness and product range |
Nonparametric test of YouTube metrics.
| Metric and group | N | Mean rank | Sum of ranks | Z | |
|
| 923 |
|
| 11.056a | |
|
| Organic | 448 | 561.90 | 251729.00 |
|
|
| Local organic | 475 | 367.78 | 174697.00 |
|
|
| 905 |
|
| 12.655a | |
|
| Organic | 441 | 565.08 | 249199.50 |
|
|
| Local organic | 464 | 346.48 | 160765.50 |
|
|
| 905 |
|
| 8.319a | |
|
| Organic | 441 | 515.27 | 227234.00 |
|
|
| Local organic | 464 | 393.82 | 182731.00 |
|
|
| 899 |
|
| 9.304a | |
|
| Organic | 436 | 528.26 | 230323.00 |
|
|
| Local organic | 463 | 376.30 | 174227.00 |
|
aP<.001.
Types of uploaders of organic and local organic food videos.
| Uploader | Organica (N=448) | Local organica (N=475) |
| Business | 37 | 87 |
| Community | 78 | 94 |
| Education | 93 | 74 |
| Media | 194 | 157 |
| Others | 7 | 17 |
| Undisclosed | 39 | 46 |
aχ21 (N=923)=4.15; P=.42.
Types of frames in organic and local organic food videos.
| Frame | Organica (N=808), n (48.26%) | Local organica (N=866), n (51.73%) |
| Good mother | 282 (34.9%) | 311 (35.9%) |
| Natural goodness | 220 (27.2%) | 253 (29.2%) |
| Undermining of foundations | 153 (18.9%) | 180 (20.7%) |
| Frankenstein | 68 (8.4%) | 27 (3.1%) |
| Responsibility | 42 (5.1%) | 57 (6.5%) |
| Progress | 43 (5.3%) | 38 (4.3%) |
aχ21 (N=1674/923)=4.84; P=.03.
Network centralities.
| Centrality name | Description | Organic network | Local organic network | Organic and local organic network |
| Weakly connected components | Subgroups of nodes that can be reached from every other node in the group. | 48 | 155 | 197 |
| Density | Total number of ties divided by the number of all possible ties that can exist within a network. | 0.038 | 0.005 | 0.007 |
| Modularity | The strength of the division between subgroups in a network. | 0.197 | 0.471 | 0.329 |
| Diameter | Average of the maximum distance between the nodes of a network. | 12 | 16 | 15 |
| Path length | Average of the distance between the nodes of a network | 3.902 | 4.640 | 4.652 |
| Number of nodes | N/Aa | 448 | 475 | 923 |
| Number of shortest paths | N/A | 95,908 | 28,967 | 263,249 |
| Degree | Average number of direct connections a node has to other nodes. | 9.67 | 2.50 | 6.75 |
| Clustering Coefficient | Measure of how close a node is to be part of a group. | 0.191 | 0.081 | 0.142 |
| Closeness | Average number of steps to access all the other nodes in a network. | 3.272 | 2.509 | 2.287 |
| Betweenness | Number of shortest paths that connect other nodes in the network by passing through a specific node. | 621.457 | 222.01 | 532.013 |
aN/A: not applicable.
Figure 1The local organic food video network and the organic food video network tied together. The organic food video network is presented as a star with central videos reaching the most distant videos within the network.
Spearman correlations for the organic network.
| Variable | Degree | Modularity class | Clustering coefficient | Betweenness |
| Views | 0.209a | 0.174a | −0.185a | 0.218a |
| Likes | 0.187a | 0.192a | −0.201a | 0.182a |
| Dislikes | 0.240a | 0.120 ( | −0.180a | 0.193a |
| Comments | 0.182a | 0.157 ( | 0.191a | 0.164 ( |
aP<.001.
Spearman correlations for the local organic network.
| Variable | Degree | Modularity class | Clustering coefficient | Betweenness |
| Views | 0.156 ( | 0.116 ( | 0.015 ( | 0.287a |
| Likes | 0.087 ( | 0.075 ( | −0.030 ( | 0.239a |
| Dislikes | 0.086 ( | 0.039 ( | 0.029 ( | 0.177a |
| Comments | 0.143 ( | 0.081 ( | 0.045 ( | 0.257a |
aP<.001.
Figure 2Semantic network for organic food video comments. The size reflects the word frequency. Ties show which words were found in the same comment, with tie thickness reflecting the frequency of such relationships.
Figure 3Semantic network for local organic food video comments.
Nonparametric test: sentiment valence of comments made on the videos.
| Valence and group | Mean rank | Sum of ranks | Z |
| |
|
|
|
| 2.159 | .03a | |
|
| Organic | 521.2 | 403927 |
|
|
|
| Local organic | 564.54 | 163718 |
|
|
|
|
|
| 0.15 | .88a | |
|
| Organic | 532.27 | 4125409 |
|
|
|
| Local organic | 534.95 | 155136 |
|
|
aN1=775, N2=290.