Entity Set Expansion (ESE) aims at automatically acquiring instances of a specific target category. Unfortunately, traditional ESE methods usually have the expansion boundary problem and the semantic drift problem. To resolve the above two problems, this paper proposes a probabilistic Co-Bootstrapping method, which can accurately determine the expansion boundary using both the positive and the ...

We propose a model for diffusion-limited annihilation of two species, A+ B → A or B, where the motion of the particles is subject to a drift. For equal initial concentrations of the two species, the density follows a power-law decay for large times. However, the decay exponent varies continuously as a function of the probability of which particle, the hopping one or the target, survives in the ...

Motivation – Automation can fail to deliver the target safety or productivity benefit as intended by those managers and designers advocating its introduction. In a safety critical domain this problem is of significance not only because the unexpected effects of automation might prevent its widespread usage but also because they might turn out to be a contributor to incident and accidents. Origi...

In general, it is difficult for conventional adaptive interference cancellation schemes to improve speech intelligibility in the presence of interference whose source is obtained asynchronously with the corrupted target speech. This is because there are inevitable timing drifts between the two inputs to the system. To address this problem, a drift-compensated adaptive filtering (DCAF) scheme is...

Item-based collaborative filtering is becoming the most promising approach in recommender systems. It can predict an active user’s interest for a target item based on his observed ratings. With the user’s interests changing during interacting with collaborative filtering, the issue of concept drift is becoming a main factor impacting the accuracy of recommendation. Aiming at the issue of concep...

Please cite this article in press as: L. Li, J.C.K. Ch j.displa.2012.10.005 We have shown that people steer toward a target by aligning their heading with the target when target egocentric direction is not available for steering [24]. Here we examined what visual strategies people use to steer toward a target when target egocentric direction is available for steering. The display simulated a pa...

Gas sensors lack repeatability over time. They are affected by drift, the result of changes at sensor level and in environment. A solution is to design software methods that compensate for drift. Existing often based on calibration samples acquired start each new measurement session. However, finding a good reference compound difficult task generating time-consuming. We propose model-based corr...

We use perturbation methods to analyze a two-dimensional random intermittent search process, in which a searcher alternates between a diffusive search phase and a ballistic movement phase whose velocity direction is random. A hidden target is introduced within a rectangular domain with reflecting boundaries. If the searcher moves within range of the target and is in the search phase, it has a c...

Abstract Background Insecticides are applied on a large scale in the environment to control oak processionary moth ( Thaumetopoea processionea ) for protection of human health. Drift insecticides non-target areas is risk surrounding biodiversity. Since habitats caterpillars usually restricted treetops, sprayers used apply biocidal products must be able transport droplets over longer distances. ...