Search |  Contact |  SRI Home Do not follow this link, or your host will be blocked from this site. This is a spider trap. Do not follow this link, or your host will be blocked from this site. This is a spider trap. Do not follow this link, or your host will be blocked from this site. This is a spider trap.A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A ASRI International.  333 Ravenswood Avenue.  Menlo Park, CA 94025-3493. SRI International is a nonprofit corporation.

AIC Seminar Series

Active: A Unified Framework for Activity Recognition and Execution

Didier GuzzoniEcole Polytechnique Federale Lausanne

Date:  Wednesday, September 8th 2004 at 4:00pm

Location:  EJ228  (Directions)


The goal of our research is to provide a unified, visual, standards-based framework for developing intelligent systems incorporating numerous AI techniques. As an implementation of such framework, our solution (Active) provides a unified platform for both activity recognition and execution. Active is based on the concept of active ontologies. In our context ontologies are not considered as passive data structures, but rather as execution environments. An active ontology is a processing formalism where distinct processing elements are arranged according to ontology notions. The execution of processing elements is triggered by conditional expressions based on events (data) and time constraints. Within Active facts are represented as first order logic predicates enhanced with functional information such as time stamp, lifespan, relevance or ownership. Using such facts, processing elements (concepts) can exchange information and store local data in private or shared contexts. Active is evaluated by creating a "library of templates" to model AI systems. Templates will be created to provide natural language processing (activity recognition), multimodal fusion, dynamic presentation (using reactive planning) and plan execution.

   Bio for Didier Guzzoni

Didier Guzzoni is a PhD student at the Swiss Federal Institute of Technology in Lausanne (EPFL). His research focus is on web service dynamic selection and execution. He received a master degree in software engineering from the Swiss FederFederal Institute of Technology in 1996. He is a senior consultant with Oblix, a company providing web service management solutions. Before that, he worked as a research engineer at VerticalNet, where he was involved in the OSM project, an infrasctructure for web services facilitation and orchestration. He started his career as a research engineer at SRI International working on the OAA platform, mobile robotics projects and the CHIC! lab (Computer Human Interface Center).

   Note for Visitors to SRI

Please arrive at least 10 minutes early as you will need to sign in by following instructions by the lobby phone at Building E (or call Wilma Lenz at 650 859 4904, or Eunice Tseng at 650 859 2799). SRI is located at 333 Ravenswood Avenue in Menlo Park. Visitors may park in the parking lots off Fourth Street. Detailed directions to SRI, as well as maps, are available from the Visiting AIC web page. There are two entrances to SRI International located on Ravenswood Ave. Please check the Building E entrance signage.

SRI International
©2018 SRI International 333 Ravenswood Avenue, Menlo Park, CA 94025-3493
SRI International is an independent, nonprofit corporation. Privacy policy