This paper discusses a data-driven learning (DDL) tool, which consists of a learner corpus for L2 learners of German. The learner corpus, in addition to submissions from ongoing current users, has been constructed from millions of submissions from a variety of activity types of approximately 5000 learners who used the E-Tutor CALL system over a period of five years. By following a cyclical proc...

This paper presents a study of the influence of emotions on the behaviour of an intelligent pathfinding agent. A model of pathfinding is proposed that takes into account the emotional state of the agent. Results show that blindly following the most urgent emotion can lead to degenerate behaviour, and that cross-exclusion can be used to effectively moderate emotional influences. Applications of ...

We introduce our methodology for collecting tweets and identifying event-related actionable information using key terms and inflections. The vast amount of user-generated content makes it challenging to detect relevant information. Therefore, we aim to facilitate extracting morphological, syntactic, and semantic features of a key term semiautomatically. The results of our study show that handli...

Reputation is an essential component of destination competitiveness. The analysis of UGC (“explicit” popularity) and of the engagement generated by these comments (“implicit” popularity”) is usually conducted separately. Monitoring the online performance of a destination require a more comprehensive approach, which combines the capacity to attract tourists’ reviews and to enhance potential visi...

Microbial enhanced oil recovery (MEOR) is an economical method used to improve the oil recovery from reservoirs. In the MEOR techniques, by applying different microorganisms, a variety of products such as bioacid, biogas, biosurfactant, and biopolymer are generated, among which biosurfactant, one of the important metabolites, is produced by bacteria. It is worthy to note that bacteria are suita...

Image hashing allows compression, enhancement or other signal processing operations on digital images which are usually acceptable manipulations. Whereas, cryptographic hash functions are very sensitive to even single bit changes in image. Image hashing is a sum of important quality features in quantized form. In this paper, we proposed a novel image hashing algorithm for authentication which i...

Background: To clarify the mechanism of sperm penetration through the zona pellucida, the flagellar force generated by a hyperactivated spermatozoon was evaluated using the resistive force theory applied to the hyperactivated flagellar waves that were obtained from the mammalian spermatozoa. Materials and Methods: The hydrodynamic calculation of the flagellar force of the activated (non-hyperac...