This paper describes the participation of our MCAT search system in the NTCIR-12 MathIR Task. We introduce three granularity levels of textual information, new approach for generating dependency graph of math expressions, score normalization, cold-start weights, and unification. We find that these modules, except the cold-start weights, have a very good impact on the search performance of our s...

This work contributes to the development of ontology-based user models, devised as overlays over conceptual hierarchies derived from domain ontologies. We tackle the problem of propagation of user interests in such a conceptual hierarchy. In addition to accounting for the hierarchical structure of the domain and the type and amount of feedback provided by the user, the principal contributions i...

This paper describes the Intelius-NYU 2012 system for the KBP Cold Start task. The Cold Start task can be decomposed into two subtasks: slot filling and entity linking. For slot filling, we focus on the adaptation of the NYU 2011 regular slot filling system to the Cold Start task. For entity linking, we apply Intelius‘s commercial conflation engine to link person and organization entities with ...

Scientific full text papers are usually stored in separate places than their underlying research datasets. Authors typically make references to datasets by mentioning them for example by using their titles and the year of publication. However, in most cases explicit links that would provide readers with direct access to referenced datasets are missing. Manually detecting references to datasets ...

When a new user registers to a recommender system service, the system does not know her taste and cannot propose meaningful suggestions (cold-start problem). This preliminary work attempts to mitigate the cold-start problem using the profile picture of the user as a sole information, following the intuition that a correspondence may exist between the pictures that people use to represent themse...

7 Submission date: November 13, 2009 8 Number of Tables and Figures: 6 9 Total Word Count: 7476 (including 250 words for each Figure/Table) 10 11 12 13 14 15 16 17 18 19 20 21 22 Mitchell K. Robinson (corresponding author) 23 University of Vermont 24 33 Colchester Avenue 25 Burlington, VT 05405 26 Phone: (716) 474-2964 27 Email: [email protected] 28 29 Karen M. Sentoff 30 University of ...

E-learning systems often include a personalization component, which adapts the learning content to the learner’s particular needs. One obstacle to personalization is the question of how to obtain a learner profile for a learner who just starts using an E-learning system without overwhelming her with questions or unsuitable learning material. One possible solution to this problem lies in the soc...

Workflow formalisations are often focused on the representation of a process with the primary objective to support execution. However, there are scenarios where what needs to be represented is the effect of the process on the data artefacts involved, for example when reasoning over the corresponding data policies. This can be achieved by annotating the workflow with the semantic relations that ...

The “Cold-Start” problem is a well-known issue in recommendation systems: there is relatively little information about each user, which results in an inability to draw inferences to recommend items to users. In this paper, we try to give a solution to this problem based on homophily in social networks: we can use social networks’ information in order to fill the gap existing in cold-start probl...