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Cloud computing provides the platform for the associate rule mining and query of big data. Data often contains artificially added uncertainty to prevent the information disclosure. How to allow users to query the result of association rules mining from uncertain data transparently is an urgent problem to be solved in the query of big data mining results. The uncertain big data for sharing achieves uniform distributed characteristic through generalizing precise data, this characteristic is not conductive to accurate queries but can offer convenience for the query on association rules mining result set. Firstly, the association rule library is built by UFI-DM algorithm and the R-tree indexes are constructed for both generalized identifiers and sensitive attributes separately in order to improve the query efficiency. Secondly, the generalization value granularity transform method and U-ARS query algorithm are proposed on this basis. Finally, theoretical analysis and experimental results demonstrate the feasibility and effectiveness of the algorithm. [ABSTRACT FROM AUTHOR]

Aim: To investigate the therapeutic effects of simultaneous horizontal and vertical operations on dissociated vertical deviation (DVD) associated with other deviations., Methods: Forty-five cases of DVD with horizontal and torsional strabismus underwent combined operation were collected retrospectively. All clinical records were analyzed. All patients were followed up for 6 to 24mo. Wilcoxon signed-ranks test was performed to evaluate the changes of vertical and horizontal deviation. χ 2 test was used to evaluate the changes of binocular visual function., Results: Forty-five cases included 36 patients with intermittent exotropia and binocular inferior oblique overaction (IOOA), 5 patients with concomitant esotropia and binocular IOOA, 4 patients with intermittent exotropia and monocular superior oblique palsy. The superior rectus recession (SRR) combined with horizontal rectus recession and the myectomy of inferior oblique or anterior transposition were operated simultaneously to correct all types of strabismus. There were 43 cases who achieved normal eye position in vertical direction, while 2 cases were with undercorrection of 5 Δ to 6 Δ . In patients with horizontal strabismus, 2 cases of exotropia were with overcorrection of 6 Δ to 8 Δ , 1 case of esotropia was with undercorrection of 6 Δ , and 1 case of monocular superior oblique palsy with compensatory head posture was not significantly improved. The binocular visual function of most patients recovered after operation. The difference of the binocular visual function and eye position were significant compared with that before operation ( P <0.05)., Conclusion: The simultaneous operation on DVD with horizontal and torsional strabismus is successful., (International Journal of Ophthalmology Press.)

Aim: To investigate a new, safe and effective injection method for strabismus patients. Botulinum toxin type A (BTXA) was injected by pulling the extraocular muscles with a minimally-invasive technique into the ocular surface, and it was ensured that the extraocular muscles was maintained in the suspended state., Methods: A total of 32 patients with different types of strabismus were treated at our institution from February to October 2010. A small conjunctival incision (≤2mm) was made under a microscope. The extraocular muscles were pulled out with a hook to ensure an elevated position compared with the wall of eyeball. The muscle fiber was clearly seen through the conjunctiva and BTXA was injected at a small angle under the microscope. The deviation angles before and after the injection were recorded. All patients were followed up at 5 and 30 days after the operation. Recovery was defined as abolition of diplopia in straight-ahead gaze and anteroinferior gaze and the symptoms of giddiness disappeared thoroughly. Eyeball position was essentially normal. Improvement was defined as basic disappearance of diplopia in straight-ahead gaze and anteroinferior gaze; restriction of action of paralytic muscle improved. If most of the symptoms and signs still existed and disturbed normal work and life, the treatment was determined to be invalid. The injection dose for patients of 5 to 10 prism diopter (PD), 11 to 20PD, and ≥21PD was 1u, 3u and 4u to 5u, respectively., Results: Of the 32 treated patients, 11(34.4%) were cured, and 18(56.3%) were improved at 5 days after the operation; 12(40%) were cured, and 15(46.9%) were improved at 30 days. Five patients (15.6%) who had unsatisfactory response after BTXA injection at 30 days received repeated injections or underwent strabismus surgery. Ptosis was present in 2.5% of the injected eyes. No retrobulbar hemorrhage or ocular perforation was found in any eye., Conclusion: It is safe and efficient to inject BTXA by pulling extraocular muscles with a minimally-invasive technique under the microscope to make the muscles separated from the wall of eyeball.