746 research outputs found
6 Seconds of Sound and Vision: Creativity in Micro-Videos
The notion of creativity, as opposed to related concepts such as beauty or
interestingness, has not been studied from the perspective of automatic
analysis of multimedia content. Meanwhile, short online videos shared on social
media platforms, or micro-videos, have arisen as a new medium for creative
expression. In this paper we study creative micro-videos in an effort to
understand the features that make a video creative, and to address the problem
of automatic detection of creative content. Defining creative videos as those
that are novel and have aesthetic value, we conduct a crowdsourcing experiment
to create a dataset of over 3,800 micro-videos labelled as creative and
non-creative. We propose a set of computational features that we map to the
components of our definition of creativity, and conduct an analysis to
determine which of these features correlate most with creative video. Finally,
we evaluate a supervised approach to automatically detect creative video, with
promising results, showing that it is necessary to model both aesthetic value
and novelty to achieve optimal classification accuracy.Comment: 8 pages, 1 figures, conference IEEE CVPR 201
Beautiful and damned. Combined effect of content quality and social ties on user engagement
User participation in online communities is driven by the intertwinement of
the social network structure with the crowd-generated content that flows along
its links. These aspects are rarely explored jointly and at scale. By looking
at how users generate and access pictures of varying beauty on Flickr, we
investigate how the production of quality impacts the dynamics of online social
systems. We develop a deep learning computer vision model to score images
according to their aesthetic value and we validate its output through
crowdsourcing. By applying it to over 15B Flickr photos, we study for the first
time how image beauty is distributed over a large-scale social system.
Beautiful images are evenly distributed in the network, although only a small
core of people get social recognition for them. To study the impact of exposure
to quality on user engagement, we set up matching experiments aimed at
detecting causality from observational data. Exposure to beauty is
double-edged: following people who produce high-quality content increases one's
probability of uploading better photos; however, an excessive imbalance between
the quality generated by a user and the user's neighbors leads to a decline in
engagement. Our analysis has practical implications for improving link
recommender systems.Comment: 13 pages, 12 figures, final version published in IEEE Transactions on
Knowledge and Data Engineering (Volume: PP, Issue: 99
An Image Is Worth More than a Thousand Favorites: Surfacing the Hidden Beauty of Flickr Pictures
The dynamics of attention in social media tend to obey power laws. Attention
concentrates on a relatively small number of popular items and neglecting the
vast majority of content produced by the crowd. Although popularity can be an
indication of the perceived value of an item within its community, previous
research has hinted to the fact that popularity is distinct from intrinsic
quality. As a result, content with low visibility but high quality lurks in the
tail of the popularity distribution. This phenomenon can be particularly
evident in the case of photo-sharing communities, where valuable photographers
who are not highly engaged in online social interactions contribute with
high-quality pictures that remain unseen. We propose to use a computer vision
method to surface beautiful pictures from the immense pool of
near-zero-popularity items, and we test it on a large dataset of
creative-commons photos on Flickr. By gathering a large crowdsourced ground
truth of aesthetics scores for Flickr images, we show that our method retrieves
photos whose median perceived beauty score is equal to the most popular ones,
and whose average is lower by only 1.5%.Comment: ICWSM 201
On the Value of Wikipedia as a Gateway to the Web
By linking to external websites, Wikipedia can act as a gateway to the Web.
To date, however, little is known about the amount of traffic generated by
Wikipedia's external links. We fill this gap in a detailed analysis of usage
logs gathered from Wikipedia users' client devices. Our analysis proceeds in
three steps: First, we quantify the level of engagement with external links,
finding that, in one month, English Wikipedia generated 43M clicks to external
websites, in roughly even parts via links in infoboxes, cited references, and
article bodies. Official links listed in infoboxes have by far the highest
click-through rate (CTR), 2.47% on average. In particular, official links
associated with articles about businesses, educational institutions, and
websites have the highest CTR, whereas official links associated with articles
about geographical content, television, and music have the lowest CTR. Second,
we investigate patterns of engagement with external links, finding that
Wikipedia frequently serves as a stepping stone between search engines and
third-party websites, effectively fulfilling information needs that search
engines do not meet. Third, we quantify the hypothetical economic value of the
clicks received by external websites from English Wikipedia, by estimating that
the respective website owners would need to pay a total of $7--13 million per
month to obtain the same volume of traffic via sponsored search. Overall, these
findings shed light on Wikipedia's role not only as an important source of
information, but also as a high-traffic gateway to the broader Web ecosystem.Comment: The Web Conference WWW 2021, 12 page
Wikipedia and Westminster: Quality and Dynamics of Wikipedia Pages about UK Politicians
Wikipedia is a major source of information providing a large variety of
content online, trusted by readers from around the world. Readers go to
Wikipedia to get reliable information about different subjects, one of the most
popular being living people, and especially politicians. While a lot is known
about the general usage and information consumption on Wikipedia, less is known
about the life-cycle and quality of Wikipedia articles in the context of
politics. The aim of this study is to quantify and qualify content production
and consumption for articles about politicians, with a specific focus on UK
Members of Parliament (MPs). First, we analyze spatio-temporal patterns of
readers' and editors' engagement with MPs' Wikipedia pages, finding huge peaks
of attention during election times, related to signs of engagement on other
social media (e.g. Twitter). Second, we quantify editors' polarisation and find
that most editors specialize in a specific party and choose specific news
outlets as references. Finally we observe that the average citation quality is
pretty high, with statements on 'Early life and career' missing citations most
often (18%).Comment: A preprint of accepted publication at the 31ST ACM Conference on
Hypertext and Social Media (HT'20
A Comparative Study of Reference Reliability in Multiple Language Editions of Wikipedia
Information presented in Wikipedia articles must be attributable to reliable
published sources in the form of references. This study examines over 5 million
Wikipedia articles to assess the reliability of references in multiple language
editions. We quantify the cross-lingual patterns of the perennial sources list,
a collection of reliability labels for web domains identified and
collaboratively agreed upon by Wikipedia editors. We discover that some sources
(or web domains) deemed untrustworthy in one language (i.e., English) continue
to appear in articles in other languages. This trend is especially evident with
sources tailored for smaller communities. Furthermore, non-authoritative
sources found in the English version of a page tend to persist in other
language versions of that page. We finally present a case study on the Chinese,
Russian, and Swedish Wikipedias to demonstrate a discrepancy in reference
reliability across cultures. Our finding highlights future challenges in
coordinating global knowledge on source reliability.Comment: Conference on Information & Knowledge Management (CIKM '23
InnerView: Learning Place Ambiance from Social Media Images
In the recent past, there has been interest in characterizing the physical and social ambiance of urban spaces to understand how people perceive and form impressions of these environments based on physical and psychological constructs. Building on our earlier work on characterizing ambiance of indoor places, we present a methodology to automatically infer impressions of place ambiance, using generic deep learning features extracted from images publicly shared on Foursquare. We base our methodology on a corpus of 45,000 images from 300 popular places in six cities on Foursquare. Our results indicate the feasibility to automatically infer place ambiance with a maximum R-2 of 0.53 using features extracted from a pre-trained convolutional neural network. We found that features extracted from deep learning with convolutional nets consistently outperformed individual and combinations of several low-level image features (including Color, GIST, HOG and LBP) to infer all the studied 13 ambiance dimensions. Our work constitutes a first study to automatically infer ambiance impressions of indoor places from deep features learned from images shared on social media
ΠΠΎΠ»ΠΈΡΠ΅ΡΡΠ²Π΅Π½Π½ΡΠ΅ Ρ Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠΈ ΡΠ°Π±ΠΎΡΡ Ρ ΡΠΈΡΠ°ΡΠ°ΠΌΠΈ Π² ΠΠΈΠΊΠΈΠΏΠ΅Π΄ΠΈΠΈ. (Π§Π°ΡΡΡ 1)
ΠΠΈΠΊΠΈΠΏΠ΅Π΄ΠΈΡ ΡΠ²Π»ΡΠ΅ΡΡΡ ΠΎΠ΄Π½ΠΈΠΌ ΠΈΠ· ΡΠ°ΠΌΡΡ
ΠΏΠΎΡΠ΅ΡΠ°Π΅ΠΌΡΡ
ΡΠ°ΠΉΡΠΎΠ² Π² ΠΈΠ½ΡΠ΅ΡΠ½Π΅ΡΠ΅ ΠΈ ΡΠ°ΡΠΏΡΠΎΡΡΡΠ°Π½ΡΠ½Π½ΡΠΌ ΠΈΡΡΠΎΡΠ½ΠΈΠΊΠΎΠΌ ΠΈΠ½ΡΠΎΡΠΌΠ°ΡΠΈΠΈ Π΄Π»Ρ ΠΌΠ½ΠΎΠ³ΠΈΡ
ΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°ΡΠ΅Π»Π΅ΠΉ. Π ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ ΡΠ½ΡΠΈΠΊΠ»ΠΎΠΏΠ΅Π΄ΠΈΠΈ ΠΠΈΠΊΠΈΠΏΠ΅Π΄ΠΈΡ Π·Π°Π΄ΡΠΌΡΠ²Π°Π»Π°ΡΡ Π½Π΅ ΠΊΠ°ΠΊ ΠΈΡΡΠΎΡΠ½ΠΈΠΊ ΠΎΡΠΈΠ³ΠΈΠ½Π°Π»ΡΠ½ΠΎΠΉ (ΠΎΠΊΠΎΠ½ΡΠ°ΡΠ΅Π»ΡΠ½ΠΎΠΉ) Π½Π°ΡΡΠ½ΠΎΠΉ ΠΈΠ½ΡΠΎΡΠΌΠ°ΡΠΈΠΈ, Π°, ΡΠΊΠΎΡΠ΅Π΅, ΠΊΠ°ΠΊ Π²ΠΎΡΠΎΡΠ° ΠΊ Π±ΠΎΠ»Π΅Π΅ Π³Π»ΡΠ±ΠΎΠΊΠΈΠΌ ΠΈ ΡΠΎΡΠ½ΡΠΌ ΠΈΡΡΠΎΡΠ½ΠΈΠΊΠ°ΠΌ. Π ΡΠΎΠΎΡΠ²Π΅ΡΡΡΠ²ΠΈΠΈ Ρ Π±Π°Π·ΠΎΠ²ΡΠΌΠΈ ΠΏΡΠΈΠ½ΡΠΈΠΏΠ°ΠΌΠΈ ΠΠΈΠΊΠΈΠΏΠ΅Π΄ΠΈΠΈ ΡΠ°ΠΊΡΡ Π΄ΠΎΠ»ΠΆΠ½Ρ Π±ΡΡΡ ΠΏΠΎΠ΄ΠΊΡΠ΅ΠΏΠ»Π΅Π½Ρ Π½Π°Π΄ΡΠΆΠ½ΡΠΌΠΈ ΠΈΡΡΠΎΡΠ½ΠΈΠΊΠ°ΠΌΠΈ, ΠΊΠΎΡΠΎΡΡΠ΅ ΠΎΡΡΠ°ΠΆΠ°ΡΡ ΠΏΠΎΠ»Π½ΡΠΉ ΡΠΏΠ΅ΠΊΡΡ Π²ΡΠ΅Ρ
ΠΌΠ½Π΅Π½ΠΈΠΉ ΠΏΠΎ Π΄Π°Π½Π½ΠΎΠΉ ΡΠ΅ΠΌΠ΅. Π₯ΠΎΡΡ ΡΠΈΡΠ°ΡΡ Π»Π΅ΠΆΠ°Ρ Π² ΠΎΡΠ½ΠΎΠ²Π΅ ΡΡΠ½ΠΊΡΠΈΠΎΠ½ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΠΈΠΊΠΈΠΏΠ΅Π΄ΠΈΠΈ, ΠΏΠΎΠΊΠ° ΠΌΠ°Π»ΠΎ ΡΡΠΎ ΠΈΠ·Π²Π΅ΡΡΠ½ΠΎ ΠΎ ΡΠΎΠΌ, ΠΊΠ°ΠΊ ΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°ΡΠ΅Π»ΠΈ ΡΠ°Π±ΠΎΡΠ°ΡΡ Ρ Π½ΠΈΠΌΠΈ. Π§ΡΠΎΠ±Ρ Π·Π°ΠΊΡΡΡΡ ΡΡΠΎΡ ΠΏΡΠΎΠ±Π΅Π», ΠΌΡ ΡΠΎΠ·Π΄Π°Π»ΠΈ ΠΊΠ»ΠΈΠ΅Π½ΡΡΠΊΠΈΠ΅ (ΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°ΡΠ΅Π»ΡΡΠΊΠΈΠ΅) ΠΈΠ½ΡΡΡΡΠΌΠ΅Π½ΡΡ Π΄Π»Ρ Π²Π΅Π΄Π΅Π½ΠΈΡ Π·Π°ΠΏΠΈΡΠ΅ΠΉ (ΠΆΡΡΠ½Π°Π»ΠΎΠ²) Π²ΡΠ΅Ρ
Π²Π·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡΠ²ΠΈΠΉ ΡΠΎ ΡΡΡΠ»ΠΊΠ°ΠΌΠΈ, ΠΈΠ΄ΡΡΠΈΠΌΠΈ ΠΈΠ· Π°Π½Π³Π»ΠΎΡΠ·ΡΡΠ½ΡΡ
ΡΡΠ°ΡΠ΅ΠΉ ΠΠΈΠΊΠΈΠΏΠ΅Π΄ΠΈΠΈ Π½Π° ΡΠΈΡΠΈΡΡΠ΅ΠΌΡΠ΅ ΡΡΡΠ»ΠΊΠΈ Π² ΡΠ΅ΡΠ΅Π½ΠΈΠ΅ ΠΎΠ΄Π½ΠΎΠ³ΠΎ ΠΌΠ΅ΡΡΡΠ°, ΠΈ ΠΏΡΠΎΠ²Π΅Π»ΠΈ ΠΏΠ΅ΡΠ²ΡΠΉ Π°Π½Π°Π»ΠΈΠ· Π²Π·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡΠ²ΠΈΡ ΡΠΈΡΠ°ΡΠ΅Π»Π΅ΠΉ Ρ ΡΠΈΡΠ°ΡΠ°ΠΌΠΈ.Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ ΠΏΠΎΠΊΠ°Π·ΡΠ²Π°ΡΡ, ΡΡΠΎ Π² ΡΠ΅Π»ΠΎΠΌ Π²ΠΎΠ²Π»Π΅ΡΡΠ½Π½ΠΎΡΡΡ Π² ΡΠΈΡΠ°ΡΡ Π½ΠΈΠ·ΠΊΠ°Ρ. ΠΠΊΠΎΠ»ΠΎ 300 ΠΏΡΠΎΡΠΌΠΎΡΡΠΎΠ² ΡΡΡΠ°Π½ΠΈΡ ΠΏΡΠΈΠ²ΠΎΠ΄ΡΡ ΠΊ Π²Ρ
ΠΎΠ΄Ρ Π½Π° ΠΎΠ΄Π½Ρ ΡΡΡΠ»ΠΊΡ β ΡΡΠΎ ΡΠΎΡΡΠ°Π²Π»ΡΠ΅Ρ Π²ΡΠ΅Π³ΠΎ 0,29%, Π² ΡΠΎΠΌ ΡΠΈΡΠ»Π΅ 0,56% ΠΏΡΠΈ ΡΠ°Π±ΠΎΡΠ΅ Ρ Π½Π°ΡΡΠΎΠ»ΡΠ½ΡΠΌ ΠΊΠΎΠΌΠΏΡΡΡΠ΅ΡΠΎΠΌ (Π½Π° ΡΠ°Π±ΠΎΡΠ΅ΠΌ ΡΡΠΎΠ»Π΅) ΠΈ 0,13% ΠΏΡΠΈ ΡΠ°Π±ΠΎΡΠ΅ Π½Π° ΠΌΠΎΠ±ΠΈΠ»ΡΠ½ΡΡ
ΡΡΡΡΠΎΠΉΡΡΠ²Π°Ρ
. Π‘ΠΎΠΏΠΎΡΡΠ°Π²Π»Π΅Π½ΠΈΠ΅ ΡΠ°ΠΊΡΠΎΡΠΎΠ², ΡΠ²ΡΠ·Π°Π½Π½ΡΡ
Ρ ΠΏΠ΅ΡΠ΅Ρ
ΠΎΠ΄Π°ΠΌΠΈ ΠΏΠΎ ΡΡΡΠ»ΠΊΠ΅, ΠΏΠΎΠΊΠ°Π·ΡΠ²Π°Π΅Ρ, ΡΡΠΎ ΠΏΠ΅ΡΠ΅Ρ
ΠΎΠ΄Ρ ΠΏΡΠΎΠΈΡΡ
ΠΎΠ΄ΡΡ ΡΠ°ΡΠ΅ Π½Π° Π±ΠΎΠ»Π΅Π΅ ΠΊΠΎΡΠΎΡΠΊΠΈΡ
ΡΡΡΠ°Π½ΠΈΡΠ°Ρ
ΠΈ Π½Π° ΡΡΡΠ°Π½ΠΈΡΠ°Ρ
ΠΎΡΠ½ΠΎΡΠΈΡΠ΅Π»ΡΠ½ΠΎ Π½ΠΈΠ·ΠΊΠΎΠ³ΠΎ ΠΊΠ°ΡΠ΅ΡΡΠ²Π°. ΠΡΡ
ΠΎΠ΄Ρ ΠΈΠ· ΡΡΠΎΠ³ΠΎ ΠΌΠΎΠΆΠ½ΠΎ ΠΏΡΠ΅Π΄ΠΏΠΎΠ»ΠΎΠΆΠΈΡΡ, ΡΡΠΎ ΡΡΡΠ»ΠΊΠΈ ΡΠ°ΡΠ΅ Π²ΡΠ΅Π³ΠΎ ΡΡΠ΅Π±ΡΡΡΡΡ, ΠΊΠΎΠ³Π΄Π° ΠΠΈΠΊΠΈΠΏΠ΅Π΄ΠΈΡ Π½Π΅ ΡΠΎΠ΄Π΅ΡΠΆΠΈΡ ΠΈΠ½ΡΠΎΡΠΌΠ°ΡΠΈΡ, ΠΊΠΎΡΠΎΡΡΡ ΠΈΡΠ΅Ρ ΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°ΡΠ΅Π»Ρ. ΠΡΠΎΠΌΠ΅ ΡΠΎΠ³ΠΎ, ΠΌΡ ΠΎΠ±ΡΠ°ΡΠΈΠ»ΠΈ Π²Π½ΠΈΠΌΠ°Π½ΠΈΠ΅, ΡΡΠΎ ΠΈΡΡΠΎΡΠ½ΠΈΠΊΠΈ ΠΎΡΠΊΡΡΡΠΎΠ³ΠΎ Π΄ΠΎΡΡΡΠΏΠ° ΠΈ ΡΡΡΠ»ΠΊΠΈ ΠΎ ΠΆΠΈΠ·Π½Π΅Π½Π½ΡΡ
ΡΠΎΠ±ΡΡΠΈΡΡ
(ΡΠΎΠΆΠ΄Π΅Π½ΠΈΡ, ΡΠΌΠ΅ΡΡΠΈ, Π±ΡΠ°ΠΊΠΈ ΠΈ Ρ.Π΄.) ΠΎΡΠΎΠ±Π΅Π½Π½ΠΎ ΠΏΠΎΠΏΡΠ»ΡΡΠ½Ρ.Π‘ΠΎΠ±ΡΠ°Π½Π½ΡΠ΅ Π²ΠΎΠ΅Π΄ΠΈΠ½ΠΎ, Π½Π°ΡΠΈ Π²ΡΠ²ΠΎΠ΄Ρ ΡΠ³Π»ΡΠ±Π»ΡΡΡ ΠΏΠΎΠ½ΠΈΠΌΠ°Π½ΠΈΠ΅ ΡΠΎΠ»ΠΈ ΠΠΈΠΊΠΈΠΏΠ΅Π΄ΠΈΠΈ Π² Π³Π»ΠΎΠ±Π°Π»ΡΠ½ΠΎΠΉ ΠΈΠ½ΡΠΎΡΠΌΠ°ΡΠΈΠΎΠ½Π½ΠΎΠΉ ΡΠΊΠΎΠ½ΠΎΠΌΠΈΠΊΠ΅, Π³Π΄Π΅ Π½Π°Π΄ΡΠΆΠ½ΠΎΡΡΡ ΡΡΠ°Π½ΠΎΠ²ΠΈΡΡΡ Π²ΡΡ ΠΌΠ΅Π½Π΅Π΅ ΠΎΠΏΡΠ΅Π΄Π΅Π»ΡΠ½Π½ΠΎΠΉ, Π° Π·Π½Π°ΡΠ΅Π½ΠΈΠ΅ ΠΈΡΡΠΎΡΠ½ΠΈΠΊΠΎΠ² ΡΡΠ°Π½ΠΎΠ²ΠΈΡΡΡ Π²ΡΡ Π±ΠΎΠ»Π΅Π΅ Π²Π°ΠΆΠ½ΡΠΌ.Π‘ΠΏΡΠ°Π²ΠΎΡΠ½ΡΠΉ ΡΠΎΡΠΌΠ°Ρ ACM Π΄Π»Ρ ΡΡΡΠ»ΠΎΠΊ: Π’ΠΈΡΠΈΠ°Π½ΠΎ ΠΠΈΠΊΠΊΠ°ΡΠ΄ΠΈ, ΠΠΈΡΠΈΠ°ΠΌ Π Π΅Π΄ΠΈ, ΠΠΆΠΎΠ²Π°Π½Π½ΠΈ ΠΠΎΠ»Π°Π²ΠΈΡΡΠ° ΠΈ Π ΠΎΠ±Π΅ΡΡ ΠΠ΅ΡΡ. 2020.ΠΠΎΠ»ΠΈΡΠ΅ΡΡΠ²Π΅Π½Π½Π°Ρ ΠΎΡΠ΅Π½ΠΊΠ° Π²Π·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡΠ²ΠΈΡ Ρ ΡΠΈΡΠ°ΡΠ°ΠΌΠΈ Π² ΠΠΈΠΊΠΈΠΏΠ΅Π΄ΠΈΠΈ. Π ΡΡΡΠ΄Π°Ρ
: ΠΠ΅Π±-ΠΊΠΎΠ½ΡΠ΅ΡΠ΅Π½ΡΠΈΡ 2020 (WWWβ20), 20β24 Π°ΠΏΡ. 2020 Π³., Π’Π°ΠΉΠ±ΡΠΉ, Π’Π°ΠΉ-Π²Π°Π½Ρ. ACM, ΠΡΡ-ΠΠΎΡΠΊ, ΡΡΠ°Ρ ΠΡΡ-ΠΠΎΡΠΊ, Π‘Π¨Π. 12 ΡΡΡ. https://doi.org/10.1145/3366423.3380300
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