Hypermedia links and controls drive the Web by transforming information into affordances through which users can choose actions. However, publishers of information cannot predict all actions their users might want to perform and therefore, hypermedia ...

Web Observatories must address fundamental societal challenges using enormous volumes of data being created due to the significant progress in technology. The proliferation of heterogeneous data streams generated by social media, sensor networks, ...

The broad adoption of online social networking platforms has made it possible to study communication networks at an unprecedented scale. With social media and micro-blogging platforms such as Twitter, we can observe high-volume data streams of online ...

We present the Koblenz Network Collection (KONECT), a project to collect network datasets in the areas of web science, network science and related areas, as well as provide tools for their analysis. In the cited areas, a surprisingly large number of very ...

Web sites that rely on databases for their content are now ubiquitous. Query result pages are dynamically generated from these databases in response to user-submitted queries. Automatically extracting structured data from query result pages is a ...

The amount of information available on the Web has been increasing daily. However, how one might know what is right or wrong? Does the Web itself can be used as a source for verification of information? NELL (Never-Ending Language Learner) is a computer ...

We present a survey of usage of the popular Massively Multiplayer Online Role Playing Game, World of Warcraft. Players within this game often self-organize into communities with similar interests and/or styles of play. By mining publicly available data, ...

In the last few years there has been an increased interest from researchers and practitioners in exploring time as a dimension that can benefit several information retrieval tasks. There is exciting work in analyzing and exploiting temporal information ...

Web information is ephemeral. Several organizations around the world are struggling to archive information from the web before it vanishes. However, users demand efficient and effective search mechanisms to access the already vast collections of ...

When retrieving archived copies of web resources (mementos) from web archives, the original resource's URI-R is typically used as the lookup key in the web archive. This is straightforward until the resource on the live web issues a redirect: R ->R`. ...

Web archives already hold more than 282 billion documents and users demand full-text search to explore this historical information. This survey provides an overview of web archive search architectures designed for time-travel search, i.e. full-text ...

Known events that are scheduled in advance, such as popular sports games, usually get a lot of attention from the public. Communications media like TV, radio, and newspapers will report the salient aspects of such events live or post-hoc for general ...

Citizens, news reporters, relief organizations, and governments are increasingly relying on the Social Web to report on and respond to disasters as they occur. The capability to rapidly react to important events, which can be identified from high-volume ...

This paper describes ongoing work with the Australian Government to assemble information from a collection of web feeds describing emergency incidents of interest for emergency managers. The developed system, the Emergency Response Intelligence ...

In this paper, we investigate the potential of social media to provide rapid insights into the location and extent of damage associated with two recent earthquakes - the 2011 Tohoku earthquake in Japan and the 2011 Christchurch earthquake in New ...

This paper describes early work at developing an earthquake detector for Australia and New Zealand using Twitter. The system is based on the Emergency Situation Awareness (ESA) platform which provides all-hazard information captured, filtered and ...

Recommender systems are used to help people in specific life choices, like what items to buy, what news to read or what movies to watch. A relevant work in this context is the Slope One algorithm, which is based on the concept of differential popularity ...

Online social networks have become very important for networking, communication, sharing, and content discovery. Recommender systems play a significant role on any online social network for engaging members, recruiting new members, and recommending ...

As a scoping exercise in the design of our Social Machines Observatory we consider the observation of Social Machines "in the wild", as illustrated through two scenarios. More than identifying and classifying individual machines, we argue that we need ...

Blending computational and social elements into software has gained significant attention in key conferences and journals. In this context, "Social Machines" appears as a promising model for unifying both computational and social processes. However, it ...