[ { "key": "ZKISAG42", "version": 1794, "library": { "type": "group", "id": 25846, "name": "Traffic analysis", "links": { "alternate": { "href": "https://www.zotero.org/groups/traffic_analysis", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/25846/items/ZKISAG42", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/traffic_analysis/items/ZKISAG42", "type": "text/html" } }, "meta": { "createdByUser": { "id": 27767, "username": "fccoelho", "name": "Flávio Codeço Coelho", "links": { "alternate": { "href": "https://www.zotero.org/fccoelho", "type": "text/html" } } }, "creatorSummary": "Lieu and Henry Lieu", "parsedDate": "1999-02", "numChildren": 0 }, "data": { "key": "ZKISAG42", "version": 1794, "itemType": "journalArticle", "title": "Traffic-Flow Theory", "creators": [ { "creatorType": "author", "firstName": "Henry", "lastName": "Lieu" }, { "creatorType": "author", "firstName": "", "lastName": "Henry Lieu" } ], "abstractNote": "", "publicationTitle": "Public Roads", "publisher": "", "place": "", "date": "January/February 1999·", "volume": "", "issue": "Vol. 62· No. 4", "section": "", "partNumber": "", "partTitle": "", "pages": "", "series": "", "seriesTitle": "", "seriesText": "", "journalAbbreviation": "", "DOI": "", "citationKey": "", "url": "http://www.tfhrc.gov/pubrds/janfeb99/traffic.htm", "accessDate": "2010-09-15T10:57:34Z", "PMID": "", "PMCID": "", "ISSN": "", "archive": "", "archiveLocation": "", "shortTitle": "", "language": "", "libraryCatalog": "", "callNumber": "0013", "rights": "", "extra": "", "tags": [], "collections": [], "relations": {}, "dateAdded": "2010-09-15T10:57:34Z", "dateModified": "2013-04-11T12:55:59Z" } }, { "key": "SRGBEPUM", "version": 1794, "library": { "type": "group", "id": 25846, "name": "Traffic analysis", "links": { "alternate": { "href": "https://www.zotero.org/groups/traffic_analysis", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/25846/items/SRGBEPUM", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/traffic_analysis/items/SRGBEPUM", "type": "text/html" } }, "meta": { "createdByUser": { "id": 27767, "username": "fccoelho", "name": "Flávio Codeço Coelho", "links": { "alternate": { "href": "https://www.zotero.org/fccoelho", "type": "text/html" } } }, "creatorSummary": "Lakhina et al.", "parsedDate": "2004", "numChildren": 0 }, "data": { "key": "SRGBEPUM", "version": 1794, "itemType": "journalArticle", "title": "Structural analysis of network traffic flows", "creators": [ { "creatorType": "author", "firstName": "Anukool", "lastName": "Lakhina" }, { "creatorType": "author", "firstName": "Konstantina", "lastName": "Papagiannaki" }, { "creatorType": "author", "firstName": "Mark", "lastName": "Crovella" }, { "creatorType": "author", "firstName": "Christophe", "lastName": "Diot" }, { "creatorType": "author", "firstName": "Eric D.", "lastName": "Kolaczyk" }, { "creatorType": "author", "firstName": "Nina", "lastName": "Taft" } ], "abstractNote": "Network traffic arises from the superposition of Origin-Destination (OD) flows. Hence, a thorough understanding of OD flows is essential for modeling network traffic, and for addressing a wide variety of problems including traffic engineering, traffic matrix estimation, capacity planning, forecasting and anomaly detection. However, to date, OD flows have not been closely studied, and there is very little known about their properties.We present the first analysis of complete sets of OD flow time-series, taken from two different backbone networks (Abilene and Sprint-Europe). Using Principal Component Analysis (PCA), we find that the set of OD flows has small intrinsic dimension. In fact, even in a network with over a hundred OD flows, these flows can be accurately modeled in time using a small number (10 or less) of independent components or dimensions.We also show how to use PCA to systematically decompose the structure of OD flow timeseries into three main constituents: common periodic trends, short-lived bursts, and noise. We provide insight into how the various constitutents contribute to the overall structure of OD flows and explore the extent to which this decomposition varies over time.", "publicationTitle": "SIGMETRICS Perform. Eval. Rev.", "publisher": "", "place": "", "date": "2004", "volume": "32", "issue": "1", "section": "", "partNumber": "", "partTitle": "", "pages": "61-72", "series": "", "seriesTitle": "", "seriesText": "", "journalAbbreviation": "", "DOI": "10.1145/1012888.1005697", "citationKey": "", "url": "http://portal.acm.org/citation.cfm?id=1005697", "accessDate": "2010-09-15T10:47:11Z", "PMID": "", "PMCID": "", "ISSN": "", "archive": "", "archiveLocation": "", "shortTitle": "", "language": "", "libraryCatalog": "ACM", "callNumber": "0304", "rights": "", "extra": "", "tags": [ { "tag": "network traffic analysis", "type": 1 }, { "tag": "principal component analysis", "type": 1 }, { "tag": "traffic engineering", "type": 1 } ], "collections": [], "relations": {}, "dateAdded": "2010-09-15T10:54:37Z", "dateModified": "2013-04-11T12:55:58Z" } }, { "key": "9KPSV26Z", "version": 1794, "library": { "type": "group", "id": 25846, "name": "Traffic analysis", "links": { "alternate": { "href": "https://www.zotero.org/groups/traffic_analysis", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/25846/items/9KPSV26Z", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/traffic_analysis/items/9KPSV26Z", "type": "text/html" } }, "meta": { "createdByUser": { "id": 27767, "username": "fccoelho", "name": "Flávio Codeço Coelho", "links": { "alternate": { "href": "https://www.zotero.org/fccoelho", "type": "text/html" } } }, "creatorSummary": "Cascetta and Nguyen", "parsedDate": "1988", "numChildren": 0 }, "data": { "key": "9KPSV26Z", "version": 1794, "itemType": "journalArticle", "title": "A unified framework for estimating or updating origin/destination matrices from traffic counts", "creators": [ { "creatorType": "author", "firstName": "Ennio", "lastName": "Cascetta" }, { "creatorType": "author", "firstName": "Sang", "lastName": "Nguyen" } ], "abstractNote": "", "publicationTitle": "Transportation Research Part B: Methodological", "publisher": "", "place": "", "date": "Dezembro 1988", "volume": "22", "issue": "6", "section": "", "partNumber": "", "partTitle": "", "pages": "437-455", "series": "", "seriesTitle": "", "seriesText": "", "journalAbbreviation": "", "DOI": "10.1016/0191-2615(88)90024-0", "citationKey": "", "url": "http://www.sciencedirect.com/science/article/B6V99-466FJSN-6Y/2/f99f1392346c4ca877e163b8e9000bc9", "accessDate": "2010-09-15T11:00:57Z", "PMID": "", "PMCID": "", "ISSN": "0191-2615", "archive": "", "archiveLocation": "", "shortTitle": "", "language": "", "libraryCatalog": "ScienceDirect", "callNumber": "0239", "rights": "", "extra": "", "tags": [], "collections": [], "relations": {}, "dateAdded": "2010-09-15T11:00:57Z", "dateModified": "2013-04-11T12:55:57Z" } }, { "key": "2A6NUF33", "version": 1794, "library": { "type": "group", "id": 25846, "name": "Traffic analysis", "links": { "alternate": { "href": "https://www.zotero.org/groups/traffic_analysis", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/25846/items/2A6NUF33", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/traffic_analysis/items/2A6NUF33", "type": "text/html" } }, "meta": { "createdByUser": { "id": 27767, "username": "fccoelho", "name": "Flávio Codeço Coelho", "links": { "alternate": { "href": "https://www.zotero.org/fccoelho", "type": "text/html" } } }, "creatorSummary": "Schreckenberg et al.", "parsedDate": "1995", "numChildren": 0 }, "data": { "key": "2A6NUF33", "version": 1794, "itemType": "journalArticle", "title": "Discrete stochastic models for traffic flow", "creators": [ { "creatorType": "author", "firstName": "M.", "lastName": "Schreckenberg" }, { "creatorType": "author", "firstName": "A.", "lastName": "Schadschneider" }, { "creatorType": "author", "firstName": "K.", "lastName": "Nagel" }, { "creatorType": "author", "firstName": "N.", "lastName": "Ito" } ], "abstractNote": "We investigate a probabilistic cellular automaton model which has been introduced recently. This model describes single-lane traffic flow on a ring and generalizes the asymmetric exclusion process models. We study the equilibrium properties and calculate the so-called fundamental diagrams (flow versus density) for parallel dynamics. This is done numerically by computer simulations of the model and by means of an improved mean-field approximation which takes into account short-range correlations. For cars with a maximum velocity of 1, the simplest nontrivial approximation gives the exact result. For higher velocities, the analytical results, obtained by iterated application of the approximation scheme, are in excellent agreement with the numerical simulations.", "publicationTitle": "Physical Review E", "publisher": "", "place": "", "date": "Abril 1, 1995", "volume": "51", "issue": "4", "section": "", "partNumber": "", "partTitle": "", "pages": "2939", "series": "", "seriesTitle": "", "seriesText": "", "journalAbbreviation": "Phys. Rev. E", "DOI": "10.1103/PhysRevE.51.2939", "citationKey": "", "url": "http://link.aps.org/doi/10.1103/PhysRevE.51.2939", "accessDate": "2010-09-15T10:42:43Z", "PMID": "", "PMCID": "", "ISSN": "", "archive": "", "archiveLocation": "", "shortTitle": "", "language": "", "libraryCatalog": "APS", "callNumber": "0467", "rights": "", "extra": "", "tags": [], "collections": [], "relations": {}, "dateAdded": "2010-09-15T10:54:37Z", "dateModified": "2013-04-11T12:55:56Z" } }, { "key": "UTESGT6E", "version": 1, "library": { "type": "group", "id": 25846, "name": "Traffic analysis", "links": { "alternate": { "href": "https://www.zotero.org/groups/traffic_analysis", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/25846/items/UTESGT6E", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/traffic_analysis/items/UTESGT6E", "type": "text/html" } }, "meta": { "createdByUser": { "id": 27767, "username": "fccoelho", "name": "Flávio Codeço Coelho", "links": { "alternate": { "href": "https://www.zotero.org/fccoelho", "type": "text/html" } } }, "numChildren": 0 }, "data": { "key": "UTESGT6E", "version": 1, "itemType": "webpage", "title": "A Simulation-based Framework For The Analysis Of Traffic Networks Operating With Real-time Information", "creators": [], "abstractNote": "", "websiteTitle": "", "websiteType": "", "date": "", "publisher": "", "place": "", "DOI": "", "citationKey": "", "url": "http://escholarship.org/uc/item/2t6773w7#page-1", "accessDate": "2010-09-15T11:10:12Z", "shortTitle": "", "language": "", "rights": "", "extra": "", "tags": [], "collections": [], "relations": {}, "dateAdded": "2010-09-15T11:10:12Z", "dateModified": "2010-09-15T11:10:39Z" } }, { "key": "6QGBRS7N", "version": 1, "library": { "type": "group", "id": 25846, "name": "Traffic analysis", "links": { "alternate": { "href": "https://www.zotero.org/groups/traffic_analysis", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/25846/items/6QGBRS7N", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/traffic_analysis/items/6QGBRS7N", "type": "text/html" } }, "meta": { "createdByUser": { "id": 27767, "username": "fccoelho", "name": "Flávio Codeço Coelho", "links": { "alternate": { "href": "https://www.zotero.org/fccoelho", "type": "text/html" } } }, "numChildren": 0 }, "data": { "key": "6QGBRS7N", "version": 1, "itemType": "webpage", "title": "Traffic flow - Wikipedia, the free encyclopedia", "creators": [], "abstractNote": "", "websiteTitle": "", "websiteType": "", "date": "", "publisher": "", "place": "", "DOI": "", "citationKey": "", "url": "http://en.wikipedia.org/wiki/Traffic_flow", "accessDate": "2010-09-15T11:06:59Z", "shortTitle": "", "language": "", "rights": "", "extra": "", "tags": [], "collections": [], "relations": {}, "dateAdded": "2010-09-15T11:06:59Z", "dateModified": "2010-09-15T11:06:59Z" } } ]