Contact Patterns in a High School: A Comparison between Data Collected Using Wearable Sensors, Contact Diaries and Friendship Surveys
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{"title"=>"Contact patterns in a high school: A comparison between data collected using wearable sensors, contact diaries and friendship surveys", "type"=>"generic", "authors"=>[{"first_name"=>"Rossana", "last_name"=>"Mastrandrea", "scopus_author_id"=>"56150284600"}, {"first_name"=>"Julie", "last_name"=>"Fournet", "scopus_author_id"=>"56362548600"}, {"first_name"=>"Alain", "last_name"=>"Barrat", "scopus_author_id"=>"7003666520"}], "year"=>2015, "source"=>"PLoS ONE", "identifiers"=>{"issn"=>"19326203", "arxiv"=>"1506.03645", "scopus"=>"2-s2.0-84943303005", "pui"=>"606226630", "doi"=>"10.1371/journal.pone.0136497", "isbn"=>"1932-6203 (Electronic)\\r1932-6203 (Linking)", "sgr"=>"84943303005", "pmid"=>"26325289"}, "id"=>"0dee8f1c-8378-33ee-ab72-e249a9bc65d3", "abstract"=>"Given their importance in shaping social networks and determining how information or transmissible diseases propagate in a population, interactions between individuals are the subject of many data collection efforts. To this aim, different methods are commonly used, ranging from diaries and surveys to decentralised infrastructures based on wearable sensors. These methods have each advantages and limitations but are rarely compared in a given setting. Moreover, as surveys targeting friendship relations might suffer less from memory biases than contact diaries, it is interesting to explore how actual contact patterns occurring in day-to-day life compare with friendship relations and with online social links. Here we make progresses in these directions by leveraging data collected in a French high school and concerning (i) face-to-face contacts measured by two concurrent methods, namely wearable sensors and contact diaries, (ii) self-reported friendship surveys, and (iii) online social links. We compare the resulting data sets and find that most short contacts are not reported in diaries while long contacts have a large reporting probability, and that the durations of contacts tend to be overestimated in the diaries. Moreover, measured contacts corresponding to reported friendship can have durations of any length but all long contacts do correspond to a reported friendship. On the contrary, online links that are not also reported in the friendship survey correspond to short face-to-face contacts, highlighting the difference of nature between reported friendships and online links. Diaries and surveys suffer moreover from a low sampling rate, as many students did not fill them, showing that the sensor-based platform had a higher acceptability. We also show that, despite the biases of diaries and surveys, the overall structure of the contact network, as quantified by the mixing patterns between classes, is correctly captured by both networks of self-reported contacts and of friendships, and we investigate the correlations between the number of neighbors of individuals in the three networks. Overall, diaries and surveys tend to yield a correct picture of the global structural organization of the contact network, albeit with much less links, and give access to a sort of backbone of the contact network corresponding to the strongest links, i.e., the contacts of longest cumulative durations.", "link"=>"http://www.mendeley.com/research/contact-patterns-high-school-comparison-between-data-collected-using-wearable-sensors-contact-diarie", "reader_count"=>90, "reader_count_by_academic_status"=>{"Unspecified"=>3, "Professor > Associate Professor"=>5, "Researcher"=>19, "Student > Doctoral Student"=>7, "Student > Ph. D. Student"=>34, "Other"=>2, "Student > Master"=>7, "Student > Bachelor"=>6, "Lecturer"=>3, "Lecturer > Senior Lecturer"=>2, "Professor"=>2}, "reader_count_by_user_role"=>{"Unspecified"=>3, "Professor > Associate Professor"=>5, "Researcher"=>19, "Student > Doctoral Student"=>7, "Student > Ph. D. Student"=>34, "Other"=>2, "Student > Master"=>7, "Student > Bachelor"=>6, "Lecturer"=>3, "Lecturer > Senior Lecturer"=>2, "Professor"=>2}, "reader_count_by_subject_area"=>{"Unspecified"=>11, "Engineering"=>1, "Mathematics"=>7, "Medicine and Dentistry"=>4, "Agricultural and Biological Sciences"=>6, "Design"=>4, "Business, Management and Accounting"=>6, "Physics and Astronomy"=>9, "Psychology"=>5, "Social Sciences"=>14, "Computer Science"=>23}, "reader_count_by_subdiscipline"=>{"Design"=>{"Design"=>4}, "Engineering"=>{"Engineering"=>1}, "Medicine and Dentistry"=>{"Medicine and Dentistry"=>4}, "Social Sciences"=>{"Social Sciences"=>14}, "Physics and Astronomy"=>{"Physics and Astronomy"=>9}, "Psychology"=>{"Psychology"=>5}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>6}, "Computer Science"=>{"Computer Science"=>23}, "Business, Management and Accounting"=>{"Business, Management and Accounting"=>6}, "Mathematics"=>{"Mathematics"=>7}, "Unspecified"=>{"Unspecified"=>11}}, "reader_count_by_country"=>{"Sweden"=>1, "United States"=>5, "Portugal"=>1, "Switzerland"=>1, "Germany"=>1, "Spain"=>2}, "group_count"=>9}

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Figshare

  • {"files"=>["https://ndownloader.figshare.com/files/2249305"], "description"=>"<p>Mean and standard deviation of distribution of aggregate durations for different sets of links (as in <a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0136497#pone.0136497.g006\" target=\"_blank\">Fig 6(b)</a>).</p>", "links"=>[], "tags"=>["contact diaries", "wearable sensors", "diary", "survey", "data collection efforts", "friendship relations", "contact network"], "article_id"=>1532576, "categories"=>["Uncategorised"], "users"=>["Rossana Mastrandrea", "Julie Fournet", "Alain Barrat"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0136497.t006", "stats"=>{"downloads"=>1, "page_views"=>11, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Mean_and_standard_deviation_of_distribution_of_aggregate_durations_for_different_sets_of_links_as_in_Fig_6_b_/1532576", "title"=>"Mean and standard deviation of distribution of aggregate durations for different sets of links (as in Fig 6(b)).", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2015-09-01 03:38:27"}
  • {"files"=>["https://ndownloader.figshare.com/files/2249283"], "description"=>"<p>We compare here the contact matrices of link densities built from (a) the network of contacts obtained using the sensor data collected on Dec. 5<sup><i>th</i></sup> and (b) the network of contacts as reported in the contact diaries. We discarded here the data corresponding to the MP*1, PC* and PSI* classes as too few students from these classes filled in a contact diary (2 for MP*1, 0 for PC* and PSI*). The similarity between these two matrices is of 97%.</p>", "links"=>[], "tags"=>["contact diaries", "wearable sensors", "diary", "survey", "data collection efforts", "friendship relations", "contact network"], "article_id"=>1532557, "categories"=>["Uncategorised"], "users"=>["Rossana Mastrandrea", "Julie Fournet", "Alain Barrat"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0136497.g003", "stats"=>{"downloads"=>0, "page_views"=>2, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Contact_matrices_of_link_densities_/1532557", "title"=>"Contact matrices of link densities.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2015-09-01 03:38:27"}
  • {"files"=>["https://ndownloader.figshare.com/files/2249303"], "description"=>"<p>* The network of friendships is not connected so the average is computed taking into account only the pairs of nodes belonging to the same connected component. Numbers in parentheses represent the standard deviations.</p><p>All network properties for the network of friendships are computed on its symmetrized version. Values on the right part of the table are obtained after retaining only the students present in both networks.</p>", "links"=>[], "tags"=>["contact diaries", "wearable sensors", "diary", "survey", "data collection efforts", "friendship relations", "contact network"], "article_id"=>1532574, "categories"=>["Uncategorised"], "users"=>["Rossana Mastrandrea", "Julie Fournet", "Alain Barrat"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0136497.t005", "stats"=>{"downloads"=>4, "page_views"=>15, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Summary_statistics_for_the_global_contact_network_and_the_network_of_reported_friendships_/1532574", "title"=>"Summary statistics for the global contact network and the network of reported friendships.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2015-09-01 03:38:27"}
  • {"files"=>["https://ndownloader.figshare.com/files/2249299"], "description"=>"<p>On the day of collection of the contact diaries, only 295 students out of the 327 participating correctly wore their sensors. All network properties for the contact diaries network are computed on its symmetrized version. In this summary table we assume that if a contact is reported by at least one of the two nodes, it exists. The right side of the table is performed after matching the two networks. Matching is done by removing the nodes who did not participate to the survey and the ones who did not have contacts recorded by sensors on the 4th day of the study. A * close to the SPL average means that after the match some isolated nodes appeared. In this case, we computed the average on the connected pairs only. Standard deviations are given in parentheses.</p>", "links"=>[], "tags"=>["contact diaries", "wearable sensors", "diary", "survey", "data collection efforts", "friendship relations", "contact network"], "article_id"=>1532571, "categories"=>["Uncategorised"], "users"=>["Rossana Mastrandrea", "Julie Fournet", "Alain Barrat"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0136497.t002", "stats"=>{"downloads"=>0, "page_views"=>10, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Comparison_of_properties_for_the_contact_networks_obtained_from_sensors_and_diaries_/1532571", "title"=>"Comparison of properties for the contact networks obtained from sensors and diaries.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2015-09-01 03:38:27"}
  • {"files"=>["https://ndownloader.figshare.com/files/2249282"], "description"=>"<p>Venn diagrams representing the sets of students concerned by the various data collection efforts.</p>", "links"=>[], "tags"=>["contact diaries", "wearable sensors", "diary", "survey", "data collection efforts", "friendship relations", "contact network"], "article_id"=>1532556, "categories"=>["Uncategorised"], "users"=>["Rossana Mastrandrea", "Julie Fournet", "Alain Barrat"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0136497.g002", "stats"=>{"downloads"=>0, "page_views"=>5, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Venn_diagrams_representing_the_sets_of_students_concerned_by_the_various_data_collection_efforts_/1532556", "title"=>"Venn diagrams representing the sets of students concerned by the various data collection efforts.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2015-09-01 03:38:27"}
  • {"files"=>["https://ndownloader.figshare.com/files/2249291"], "description"=>"<p>Fraction of friendship and contact links as a function of the number of features shared by two students.</p>", "links"=>[], "tags"=>["contact diaries", "wearable sensors", "diary", "survey", "data collection efforts", "friendship relations", "contact network"], "article_id"=>1532565, "categories"=>["Uncategorised"], "users"=>["Rossana Mastrandrea", "Julie Fournet", "Alain Barrat"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0136497.g007", "stats"=>{"downloads"=>1, "page_views"=>13, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Fraction_of_friendship_and_contact_links_as_a_function_of_the_number_of_features_shared_by_two_students_/1532565", "title"=>"Fraction of friendship and contact links as a function of the number of features shared by two students.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2015-09-01 03:38:27"}
  • {"files"=>["https://ndownloader.figshare.com/files/2249290"], "description"=>"<p>(a) Shortest path length distributions for both networks; (b) Distributions of aggregate durations, as measured by the sensors, for different kinds of links in the contact network: (i) all links, (ii) links <i>i</i> − <i>j</i> for which only one of <i>i</i> or <i>j</i> reported a friendship with the other, (iii) links for which both students reported the friendship, and (iv) links for which no friendship was reported; (c) and (d): Contact matrices of link densities. We compare here the contact matrices of link densities built from (c) the global aggregated network of contacts obtained using the sensor data and (d) the symmetrized network of reported friendships. The similarity between these two matrices is ≈ 95%.</p>", "links"=>[], "tags"=>["contact diaries", "wearable sensors", "diary", "survey", "data collection efforts", "friendship relations", "contact network"], "article_id"=>1532564, "categories"=>["Uncategorised"], "users"=>["Rossana Mastrandrea", "Julie Fournet", "Alain Barrat"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0136497.g006", "stats"=>{"downloads"=>0, "page_views"=>5, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Comparison_of_the_networks_of_contacts_and_friendships_/1532564", "title"=>"Comparison of the networks of contacts and friendships.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2015-09-01 03:38:27"}
  • {"files"=>["https://ndownloader.figshare.com/files/2249307"], "description"=>"<p>Only 11 pairs of students have a reported friendship but no Facebook links, so that we do not give the corresponding statistics.</p>", "links"=>[], "tags"=>["contact diaries", "wearable sensors", "diary", "survey", "data collection efforts", "friendship relations", "contact network"], "article_id"=>1532578, "categories"=>["Uncategorised"], "users"=>["Rossana Mastrandrea", "Julie Fournet", "Alain Barrat"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0136497.t008", "stats"=>{"downloads"=>5, "page_views"=>9, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Mean_and_standard_deviation_of_distribution_of_aggregate_durations_for_different_sets_of_links_/1532578", "title"=>"Mean and standard deviation of distribution of aggregate durations for different sets of links.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2015-09-01 03:38:27"}
  • {"files"=>["https://ndownloader.figshare.com/files/2249284"], "description"=>"<p>(a) Cumulative distributions of the aggregate durations of contacts registered by the sensors for (i) all 488 links between the 109 nodes belonging to both networks; (ii) the 202 links that were also reported in the diaries; (iii) the 286 links that were not reported in the diaries. (b) Cumulative distribution of aggregate durations of contacts registered by the sensors for the different categories of links reported in the diaries.</p>", "links"=>[], "tags"=>["contact diaries", "wearable sensors", "diary", "survey", "data collection efforts", "friendship relations", "contact network"], "article_id"=>1532558, "categories"=>["Uncategorised"], "users"=>["Rossana Mastrandrea", "Julie Fournet", "Alain Barrat"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0136497.g004", "stats"=>{"downloads"=>1, "page_views"=>3, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Sensors_vs_contact_diaries_distributions_of_cumulative_durations_registered_by_the_sensors_/1532558", "title"=>"Sensors vs. contact diaries: distributions of cumulative durations registered by the sensors.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2015-09-01 03:38:27"}
  • {"files"=>["https://ndownloader.figshare.com/files/2249301"], "description"=>"<p>Average and standard deviation of the distributions of aggregate durations for different sets of links (as in <a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0136497#pone.0136497.g004\" target=\"_blank\">Fig 4</a>).</p>", "links"=>[], "tags"=>["contact diaries", "wearable sensors", "diary", "survey", "data collection efforts", "friendship relations", "contact network"], "article_id"=>1532572, "categories"=>["Uncategorised"], "users"=>["Rossana Mastrandrea", "Julie Fournet", "Alain Barrat"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0136497.t003", "stats"=>{"downloads"=>2, "page_views"=>5, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Average_and_standard_deviation_of_the_distributions_of_aggregate_durations_for_different_sets_of_links_as_in_Fig_4_/1532572", "title"=>"Average and standard deviation of the distributions of aggregate durations for different sets of links (as in Fig 4).", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2015-09-01 03:38:27"}
  • {"files"=>["https://ndownloader.figshare.com/files/2249298"], "description"=>"<p>(a) Conditional probability to find a link in one layer (row index) given its existence in another one (column index); “C” stands for contact network, “FS” for friendship survey, “FB” for Facebook; (b) Distribution of aggregate durations in the contact network for different sets of links.</p>", "links"=>[], "tags"=>["contact diaries", "wearable sensors", "diary", "survey", "data collection efforts", "friendship relations", "contact network"], "article_id"=>1532569, "categories"=>["Uncategorised"], "users"=>["Rossana Mastrandrea", "Julie Fournet", "Alain Barrat"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0136497.g009", "stats"=>{"downloads"=>0, "page_views"=>6, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Multiplex_Analysis_/1532569", "title"=>"Multiplex Analysis.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2015-09-01 03:38:27"}
  • {"files"=>["https://ndownloader.figshare.com/files/2249280"], "description"=>"<p>The local Facebook friendship networks provided by students <i>A</i> and <i>B</i> are shown in black. In particular, we know that <i>i</i> and <i>j</i> are friends on Facebook but not <i>j</i> and <i>k</i>, as <i>i</i> and <i>j</i> are both friends of <i>A</i> and <i>j</i> and <i>k</i> are both friends of <i>B</i>. On the other hand, we do not know if <i>i</i> and <i>k</i> are friends or not: the red dashed line represents the lack of knowledge about the potential existence of this relationship.</p>", "links"=>[], "tags"=>["contact diaries", "wearable sensors", "diary", "survey", "data collection efforts", "friendship relations", "contact network"], "article_id"=>1532554, "categories"=>["Uncategorised"], "users"=>["Rossana Mastrandrea", "Julie Fournet", "Alain Barrat"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0136497.g001", "stats"=>{"downloads"=>5, "page_views"=>5, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Facebook_local_networks_/1532554", "title"=>"Facebook local networks.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2015-09-01 03:38:27"}
  • {"files"=>["https://ndownloader.figshare.com/files/2249296"], "description"=>"<p>a) Distribution of aggregate durations for the different sets of links. b) Fractions of pairs of students belonging to specific groups (no link, link in both the contact network and Facebook, link in only one of the two) as a function of the number of common features.</p>", "links"=>[], "tags"=>["contact diaries", "wearable sensors", "diary", "survey", "data collection efforts", "friendship relations", "contact network"], "article_id"=>1532567, "categories"=>["Uncategorised"], "users"=>["Rossana Mastrandrea", "Julie Fournet", "Alain Barrat"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0136497.g008", "stats"=>{"downloads"=>5, "page_views"=>13, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Contact_vs_Facebook_links_/1532567", "title"=>"Contact vs. Facebook links.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2015-09-01 03:38:27"}
  • {"files"=>["https://ndownloader.figshare.com/files/2249314", "https://ndownloader.figshare.com/files/2249315", "https://ndownloader.figshare.com/files/2249316", "https://ndownloader.figshare.com/files/2249317", "https://ndownloader.figshare.com/files/2249318"], "description"=>"<div><p>Given their importance in shaping social networks and determining how information or transmissible diseases propagate in a population, interactions between individuals are the subject of many data collection efforts. To this aim, different methods are commonly used, ranging from diaries and surveys to decentralised infrastructures based on wearable sensors. These methods have each advantages and limitations but are rarely compared in a given setting. Moreover, as surveys targeting friendship relations might suffer less from memory biases than contact diaries, it is interesting to explore how actual contact patterns occurring in day-to-day life compare with friendship relations and with online social links. Here we make progresses in these directions by leveraging data collected in a French high school and concerning (i) face-to-face contacts measured by two concurrent methods, namely wearable sensors and contact diaries, (ii) self-reported friendship surveys, and (iii) online social links. We compare the resulting data sets and find that most short contacts are not reported in diaries while long contacts have a large reporting probability, and that the durations of contacts tend to be overestimated in the diaries. Moreover, measured contacts corresponding to reported friendship can have durations of any length but all long contacts do correspond to a reported friendship. On the contrary, online links that are not also reported in the friendship survey correspond to short face-to-face contacts, highlighting the difference of nature between reported friendships and online links. Diaries and surveys suffer moreover from a low sampling rate, as many students did not fill them, showing that the sensor-based platform had a higher acceptability. We also show that, despite the biases of diaries and surveys, the overall structure of the contact network, as quantified by the mixing patterns between classes, is correctly captured by both networks of self-reported contacts and of friendships, and we investigate the correlations between the number of neighbors of individuals in the three networks. Overall, diaries and surveys tend to yield a correct picture of the global structural organization of the contact network, albeit with much less links, and give access to a sort of backbone of the contact network corresponding to the strongest links, i.e., the contacts of longest cumulative durations.</p></div>", "links"=>[], "tags"=>["contact diaries", "wearable sensors", "diary", "survey", "data collection efforts", "friendship relations", "contact network"], "article_id"=>1532581, "categories"=>["Uncategorised"], "users"=>["Rossana Mastrandrea", "Julie Fournet", "Alain Barrat"], "doi"=>["https://dx.doi.org/10.1371/journal.pone.0136497.s001", "https://dx.doi.org/10.1371/journal.pone.0136497.s002", "https://dx.doi.org/10.1371/journal.pone.0136497.s003", "https://dx.doi.org/10.1371/journal.pone.0136497.s004", "https://dx.doi.org/10.1371/journal.pone.0136497.s005"], "stats"=>{"downloads"=>4, "page_views"=>10, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Contact_Patterns_in_a_High_School_A_Comparison_between_Data_Collected_Using_Wearable_Sensors_Contact_Diaries_and_Friendship_Surveys_/1532581", "title"=>"Contact Patterns in a High School: A Comparison between Data Collected Using Wearable Sensors, Contact Diaries and Friendship Surveys", "pos_in_sequence"=>0, "defined_type"=>4, "published_date"=>"2015-09-01 03:38:27"}
  • {"files"=>["https://ndownloader.figshare.com/files/2249289"], "description"=>"<p>The three layers of the multiplex are shown using exactly the same layout: each node is placed at the same position in the three panels. The color of each node represents its class and size represents its degree in the corresponding network (here we consider a symmetrized version of the network of reported friendships). * Strictly speaking, the Facebook data do not provide a network as we do not have information about the presence or absence of a link between many pairs of nodes (see <a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0136497#pone.0136497.g001\" target=\"_blank\">Fig 1</a>). Figure created using the Gephi software <a href=\"http://www.gephi.org\" target=\"_blank\">http://www.gephi.org</a>.</p>", "links"=>[], "tags"=>["contact diaries", "wearable sensors", "diary", "survey", "data collection efforts", "friendship relations", "contact network"], "article_id"=>1532563, "categories"=>["Uncategorised"], "users"=>["Rossana Mastrandrea", "Julie Fournet", "Alain Barrat"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0136497.g005", "stats"=>{"downloads"=>1, "page_views"=>7, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Contact_and_friendship_networks_/1532563", "title"=>"Contact and friendship networks.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2015-09-01 03:38:27"}
  • {"files"=>["https://ndownloader.figshare.com/files/2249306"], "description"=>"<p>Mean and standard deviation of the distributions of aggregate durations for different sets of links in the contact network.</p>", "links"=>[], "tags"=>["contact diaries", "wearable sensors", "diary", "survey", "data collection efforts", "friendship relations", "contact network"], "article_id"=>1532577, "categories"=>["Uncategorised"], "users"=>["Rossana Mastrandrea", "Julie Fournet", "Alain Barrat"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0136497.t007", "stats"=>{"downloads"=>4, "page_views"=>4, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Mean_and_standard_deviation_of_the_distributions_of_aggregate_durations_for_different_sets_of_links_in_the_contact_network_/1532577", "title"=>"Mean and standard deviation of the distributions of aggregate durations for different sets of links in the contact network.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2015-09-01 03:38:27"}

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  • {"unique-ip"=>"11", "full-text"=>"11", "pdf"=>"3", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"1", "cited-by"=>"0", "year"=>"2018", "month"=>"11"}
  • {"unique-ip"=>"7", "full-text"=>"8", "pdf"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2019", "month"=>"2"}
  • {"unique-ip"=>"7", "full-text"=>"8", "pdf"=>"2", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"5", "cited-by"=>"0", "year"=>"2019", "month"=>"3"}
  • {"unique-ip"=>"13", "full-text"=>"14", "pdf"=>"1", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2019", "month"=>"4"}
  • {"unique-ip"=>"15", "full-text"=>"18", "pdf"=>"3", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2019", "month"=>"5"}
  • {"unique-ip"=>"14", "full-text"=>"13", "pdf"=>"3", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2019", "month"=>"8"}
  • {"unique-ip"=>"14", "full-text"=>"14", "pdf"=>"1", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"1", "cited-by"=>"0", "year"=>"2019", "month"=>"9"}
  • {"unique-ip"=>"13", "full-text"=>"13", "pdf"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2019", "month"=>"10"}
  • {"unique-ip"=>"15", "full-text"=>"12", "pdf"=>"4", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"1", "cited-by"=>"0", "year"=>"2019", "month"=>"12"}
  • {"unique-ip"=>"25", "full-text"=>"25", "pdf"=>"7", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2020", "month"=>"2"}
  • {"unique-ip"=>"33", "full-text"=>"39", "pdf"=>"9", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"6", "cited-by"=>"0", "year"=>"2020", "month"=>"3"}
  • {"unique-ip"=>"33", "full-text"=>"147", "pdf"=>"5", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"2", "cited-by"=>"0", "year"=>"2020", "month"=>"4"}
  • {"unique-ip"=>"47", "full-text"=>"45", "pdf"=>"12", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"11", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2020", "month"=>"5"}
  • {"unique-ip"=>"38", "full-text"=>"38", "pdf"=>"14", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2020", "month"=>"6"}
  • {"unique-ip"=>"25", "full-text"=>"46", "pdf"=>"1", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2020", "month"=>"7"}
  • {"unique-ip"=>"31", "full-text"=>"36", "pdf"=>"3", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2020", "month"=>"8"}
  • {"unique-ip"=>"26", "full-text"=>"26", "pdf"=>"6", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"3", "cited-by"=>"0", "year"=>"2020", "month"=>"9"}

Relative Metric

{"start_date"=>"2015-01-01T00:00:00Z", "end_date"=>"2015-12-31T00:00:00Z", "subject_areas"=>[]}
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