Semantic search
| Title | Description | Tutors | Start | StudMin | StudMax | CFUMin | CFUMax | Research Area | Research Topic | |
|---|---|---|---|---|---|---|---|---|---|---|
| A firefox extension for semantic annotations | A Firefox extension for semantic annotations | Aim of this project is to develop a Firefox extension, to allow a community of users to annotate resources on the Web using a shared RDF vocabulary. While browsing the Web, a user should be able to visualize the annotations relative to the page they are visiting, and to add new annotations as well. | DavidLaniado DavideEynard RiccardoTasso MarcoColombetti |
1 | 2 | 5 | 20 | Social Software and Semantic Web | Semantic Annotations | |
| Annotation aggregators from social applications | Annotation aggregators from social applications | Annotations are metadata published about a resource, such as tags in del.icio.us, comments on stumbleupon.com, or twines on Twine.com. One of the main problems of these annotations is that they are not expressed in a standard format: thus, any tool trying to aggregate information from these sources should be able to access each one of them in a different way. The purpose of this project is to develop translation tools for different social annotation systems, collect their data in a common format (expressed using an ontology), and show them through a unique user interface, able to display different annotations (i.e. geo coordinates, dates, tags, etc.) in different ways. Moreover, tests and evaluations should be performed on this aggregator to show how efficient the queries are when performed on-the-fly or from an intermediate knowledge base. | DavideEynard DavidLaniado RiccardoTasso MarcoColombetti |
1 | 2 | 5 | 20 | Social Software and Semantic Web | Semantic Annotations | |
| Extending a search engine with semantic information | Extending a search engine with semantic information | We are used to keyword-based search engines, where only documents matching the exact words in the query are retrieved. In a traditional search engine, if you submit the query "a dinosaur in a university in Lombardy" you won't probably find a document containing the phrase "a velociraptor in Politecnico di Milano", even though it's more or less what you were looking for. Aim of this project is to expand a traditional search engine with semantic information, so that also documents containing words related to the ones in the query can be retrieved. Existing thesauri and ontologies can be used, as well as more dynamic and collaborative sources of knowledge such as user tags and wikipedia pages and categories. Starting points for this work can be the projects "SeQuEx - Semantic Query Expansion" and "Enriching search results with semantic metadata". | DavidLaniado MarcoColombetti |
1 | 2 | 5 | 20 | Social Software and Semantic Web | Semantic Search | |
| Mining wikipedia categories | Wikipedia category map | Wikipedia articles are organized in a hierarchy of categories, manually assigned by users. This process can be considered a huge effort for the collective categorization of human knowledge; the result is a wide and disordered graph which can provide precious information for a variety of applications (natural language processing, information retrieval, ontology building...). In the project "Wikipedia Category Map" a tool has been developed to extract the graph of Wikipedia categories, to store it in RDF format and to interactively visualize and explore it. Aim of this project is to analyze the resulting graph for the extraction of semantic relationships; for example it is possible to define metrics of distance between topics in the graph, which can be useful for various purposes in information retrieval. | DavidLaniado RiccardoTasso MarcoColombetti |
7 July 2009 | 1 | 2 | 5 | 20 | Social Software and Semantic Web | Semantic Tagging |
| Social Network Data Extraction from Online Communities | Social Network Data Extraction From Online Communities | With the growth of the Web and the emergence of online communities, a huge amount of data regarding social relationships is now available, that was unthinkable until a few years ago. The network of connections may unveil precious information about communities structures and dynamics and the spreading of information in the Web. Aim of this project is to design and develop a software tool to extract this kind of information from a single social network platform (decided by the student). It may be required also some kind of analysis or visual representation of the collected data. | DavidLaniado RiccardoTasso MarcoColombetti |
1 | 2 | 5 | 20 | Social Software and Semantic Web | Social Network Analysis | |
| Use case design and implementation for semantic annotations | Use case design and implementation for semantic annotation | Semantic annotations offer a variety of possibilities to enhance the user experience while browsing the Web. Aim of this project is to propose one scenario in which their usefulness is exploited for a specific community of users. In detail the project requires to design a simple ontology which describes some kind of domain to annotate resources on the Web and implement an interface to query it and insert assertions inside a semantic store (through SPARQL). One possible example is the annotation of mp3 files available on the Web. They can be classified in genres or associated to datatype properties, such as rating, title, length and release date... also exploiting data already available in http://musicbrainz.org/ | DavideEynard DavidLaniado RiccardoTasso MarcoColombetti |
1 | 2 | 5 | 10 | Social Software and Semantic Web | Semantic Annotations | |
| Wikipedia Page Social Network | Wikipedia Page Social Network | Goal of this project is to study the social network of Wikipedia pages, where two pages are connected if they share at least one main contributor. This social network can be studied to reveal interesting information; for example, it is possible to extract clusters of pages which apparently have nothing in common. A metric of distance between pages in the network can be defined, and compared with other metrics, such as the distance in the category tree or in the hyperlink graph. | DavidLaniado RiccardoTasso MarcoColombetti |
1 | 2 | 5 | 20 | Social Software and Semantic Web | Social Network Analysis |
