Centrality properties of directed module members in social networks (Short Paper),
Peter Pollner, Gergely Palla, Illes Farkas, Imre Derenyi, Daniel Abel, Andras Vicsek, Tamas Vicsek
venteria ist dein Platz für Events
* Finde Veranstaltungen und lerne Leute kennen
* Plane das Wochenende mit deinen Freunden
* Organisiere Veranstaltungen und lade Leute ein
Einem Wettstreit von Ideen und Text stellen sich alle philosophisch Interessierten am 17. Oktober an der Kasseler Universität beim ersten Kasseler Philosophy Slam, zu dem das Institut für Philosophie aufruft.
Wikipedia laboratory is a special interest group on Wikipedia mining. The main purpose of this Web site is to share knowledge, discuss Wikipedia analysis, develop tools, etc. using Wikipedia knowledge.
fastutil extends the Java™ Collections Framework by providing type-specific maps, sets, lists and queues with a small memory footprint and fast access and insertion; it also includes a fast I/O API for binary and text files. It is free software distributed under the GNU Lesser General Public License.
I'm running into a problem where a string that contains valid UTF-8
characters that are illegal in XML (e.g. 0x10), gets serialized by
jaxb without escaping/encoding these bytes, effectively producing
illegal XML.
This section describes the various ways of marshalling JaxMe objects and how to configure the marshalling process. Note, that this section uses both methods and features, which are specified by JAXB and others, which are proprietary to JaxMe
Jimmy Wales ist Mitgründer von Wikipedia und hätte somit Grund genug sich zurückzulehnen. Doch der 42 Jahre alte Amerikaner arbeitet an weiteren Projekten wie Wikia, Wikianswers oder Wikia Search. Ein Gespräch über die Kontrolle der Community, die Unmöglichkeit der Internetzensur und das Zitieren von Wikipedia-Einträgen in wissenschaftlichen Arbeiten.
Zentral zwischen Rathaus und Landesmuseum
befindet sich unser Restaurant und Bistro Eckstein.
Von 11.00 Uhr bis spät in die Nacht verwöhnen wir
mit unserer durchgehenden warmen Küche unsere Gäste mit vorwiegend mediterran ausgerichteten Speisen. Wählen Sie einen von ca.135 Plätzen, und genießen Sie unser stets wechselndes Angebot.
Fabrizio Silvestri, ISTI - CNR
Ricardo Baeza-Yates, Yahoo! Research
Abstract
Web Search Engines have stored in their logs information about users since they started to operate. This information often serves many purposes. The primary focus of this tutorial is to introduce to the discipline of query mining by showing its foundations and by analyzing the basic algorithms and techniques that could be used to extract and to exploit useful knowledge from this (potentially) infinite source of information. Furthermore, participants to this tutorial will be given a unified view on the literature on query log analysis.
LinkedGeoData.org is a project by AKSW research group at Universität Leipzig aiming at extracting and publishing geo data collected by the OpenStreetMap.org project as RDF and Linked Data.
We analyse the corpus of user relationships of the Slash- dot technology news site. The data was collected from the Slashdot Zoo feature where users of the website can tag other users as friends and foes, providing positive and negative en- dorsements. We adapt social network analysis techniques to the problem of negative edge weights. In particular, we con- sider signed variants of global network characteristics such as the clustering coefficient, node-level characteristics such as centrality and popularity measures, and link-level character- istics such as distances and similarity measures. We evaluate these measures on the task of identifying unpopular users, as well as on the task of predicting the sign of links and show that the network exhibits multiplicative transitivity which allows algebraic methods based on matrix multiplication to be used. We compare our methods to traditional methods which are only suitable for positively weighted edges.
There are several semantic sources that can be found in the Web that are either explicit, e.g. Wikipedia, or implicit, e.g. derived from Web usage data. Most of them are related to user generated content (UGC) or what is called today the Web 2.0. In this talk we show several applications of mining the wisdom of crowds behind UGC to improve search. We will show live demos to find relations in the Wikipedia or to improve image search as well as our current research in the topic. Our final goal is to produce a virtuous data feedback circuit to leverage the Web itself.
Social tagging provides valuable and crucial information for large-scale web image retrieval. It is ontology-free and easy to obtain; however, irrelevant tags frequently appear, and users typically will not tag all semantic objects in the image, which is also called semantic loss. To avoid noises and compensate for the semantic loss, tag recommendation is proposed in literature. However, current recommendation simply ranks the related tags based on the single modality of tag co-occurrence on the whole dataset, which ignores other modalities, such as visual correlation. This paper proposes a multi-modality recommendation based on both tag and visual correlation, and formulates the tag recommendation as a learning problem. Each modality is used to generate a ranking feature, and Rankboost algorithm is applied to learn an optimal combination of these ranking features from different modalities. Experiments on Flickr data demonstrate the effectiveness of this learning-based multi-modality recommendation strategy.
Dr. Watson ist ein neuer Informationspool zu Ernährungs- und Gesundheitsthemen.
Im Zentrum steht Dr. Watson – Die Datenbank. Sie umfasst die bisher umfangreichste Sammlung an Informationen über Zusatzstoffe in Lebensmitteln und die damit verbundenen Gesundheitsrisiken. Dr. Watson bietet darüber hinaus Informationen zu Lebensmitteln, Genuss und Gesundheitsthemen in Form von Büchern, Artikeln und Reportagen.
I saw a post on a bulletin board somewhere recently where the poster asked how to make the href work normally on a link like this <a href="javascript:;" onclick="dosomething()"> if Javascript is not enabled. It's actually quite simple and I will look at how to do this in this post.
Mit einer großen Wasserski-Parade auf der Fulda wird heute der Zissel in Kassel eröffnet. Die hessenschau ist live dabei, wenn der Startschuss für das traditionelle nordhessische Volksfest fällt. Bis zum Montag gibt es für die Besucher jede Menge Highlights zu Land und zu Wasser.
Open Workbench is an open source desktop application that provides robust project scheduling and management functionality. Already the scheduling standard for more than 100,000 project managers worldwide, Open Workbench is a free and powerful alternative to Microsoft Project.
Das "Schwarze Brett" soll in erster Linie der Aufnahme von punktuellen und kurzfristigen Informationen dienen, die von einzelnen Mitgliedern der Universität einer breiten Öffentlichkeit angeboten werden. Es steht allen Angehörigen der Universität offen, die einen UNI-Account haben.
Traditional machine learning methods only consider relationships between feature values within individual data instances while disregarding the dependencies that link features across instances. In this work, we develop a general approach to supervised learning by leveraging higher-order dependencies between features. We introduce a novel Bayesian framework for classification named Higher Order Naive Bayes (HONB). Unlike approaches that assume data instances are independent, HONB leverages co-occurrence relations between feature values across different instances. Additionally, we generalize our framework by developing a novel data-driven space transformation that allows any classifier operating in vector spaces to take advantage of these higher-order co-occurrence relations. Results obtained on several benchmark
text corpora demonstrate that higher-order approaches achieve significant improvements in classification accuracy over the baseline (first-order) methods.
We have developed and are constantly enriching a Java library for Multi-label learning, called Mulan. Mulan contains several problem transformation and algorithm adaptation methods for multilabel classification and ranking, an evaluation framework that computes several multilabel classification evaluation measures and a class providing data set statistics. It also contains an algorithm and support for hierarchical multi-label classification. Mulan is built on top of Weka and it therefore utilizes its award-wining code base. It is open-source and distributed under the GNU GPL licence. Please contact Grigorios Tsoumakas for bug reports, comments, suggestions or request for help with the library.
Adds keyboard shortcuts to change folder, move/copy messages, with folder name auto-completion (using only the keyboard). Same for tags. Also includes a system of rules to suggest a target folder for saving messages; re-creates Eudora's Alt-Click; facilitates navigation in the 3-pane window; makes it easy to change between To/Bcc/Cc fields in the composer; facilitates tag-oriented operations. All that with the keyboard only!
The Web was originally invented with the physics community in mind, but rapidly expanded to include other scientific disciplines, in particular the health care and life sciences. By the mid 1990s the Web was already being used to share data by biomedical professionals and bioinformaticians. The Web continues to be immensely important to these fields, however use cases have expanded considerably. Researchers are now looking to share extremely large data sets on the Web, extract insights from vast numbers of papers cross sub-disciplines, and use social networking tools to identify potential collaborators, aggregate data and engage in scientific discussion. Furthermore, individuals are beginning to store their medical records online, and some are sharing their genetic makeup in a bid to find others with a similar profile. These use cases are pushing the boundaries of what is currently possible with the Web. This workshop will present how scientists are currently using the Web, and discuss the functionality that is required to make the Web an ideal platform for both cutting edge scientific collaboration and for managing health care and life science related data.
ABBYY FineReader Engine for Embedded OS is a highly portable small-footprint OCR SDK with low resource requirements designed to integrate document conversion technologies into the MFPs and other imaging devices
D. Abrams, R. Baecker, и M. Chignell. Proceedings of the SIGCHI conference on Human factors in computing systems, стр. 41-48. New York, NY, USA, ACM Press/Addison-Wesley Publishing Co., (1998)
E. Agirre, E. Alfonseca, K. Hall, J. Kravalova, M. Pasca, и A. Soroa. Proceedings of Human Language Technologies: The 2009 Annual Conference of the North American Chapter of the Association for Computational Linguistics, стр. 19--27. Stroudsburg, PA, USA, Association for Computational Linguistics, (2009)
R. Allen, и Y. Wu. Digital Libraries: People, Knowledge, and Technology, том 2555 из Lecture Notes in Computer Science, Springer, Berlin / Heidelberg, (2010)
M. Ames, и M. Naaman. CHI '07: Proceedings of the SIGCHI conference on Human factors in computing systems, стр. 971--980. New York, NY, USA, ACM, (2007)
R. Angelova, и G. Weikum. Proceedings of the 29th annual international ACM SIGIR conference on Research and development in information retrieval, стр. 485--492. New York, NY, USA, ACM, (2006)