ISSN 0253-2778

CN 34-1054/N

2017 Vol. 47, No. 7

Display Method:
Original Paper
Ocean remote sensing image auto-annotation based on DBNMI model
HUANG Dongmei, XU Qiongqiong, DU Yanling, HE Qi
2017, 47(7): 541-546. doi: 10.3969/j.issn.0253-2778.2017.07.001
Abstract:
Bridge the semantic gap between low-level visual feature and high-level semantic concepts has been the subject of intensive investigation on large scale remote sensing image management for years in order to improve the accuracy of automatic image annotation. An ocean remote sensing image auto-annota...
Tag-based personalized travel recommendation
LI Yamei, WANG Changdong
2017, 47(7): 547-555. doi: 10.3969/j.issn.0253-2778.2017.07.002
Abstract:
The disparity between the huge number of tourist attraction and the limited number of trigs made by tourists has resulted in the sparseness of tourist travel data, which seriously affects the accuracy of the recommendation results. To solve this problem, four kinds of tags area, time, topic, type we...
Visualization of multi-dimensional sparse spatial-temporal data
ZHAO Fan, JIANG Tonghai, ZHOU Xi, MA Bo, CHENG Li
2017, 47(7): 556-568. doi: 10.3969/j.issn.0253-2778.2017.07.003
Abstract:
Multi-dimensionality and sparseness of spatial-temporal data are major challenges for data analysis. Data visualization can effectively address certain data analysis challenges and has increasingly drawn attention from both industry and academia. A hybrid approach for the visualization of multi-dime...
Mobile user propagation capability evaluation and coverage optimization algorithm
XU Wanru, YANG Panlong
2017, 47(7): 569-574. doi: 10.3969/j.issn.0253-2778.2017.07.004
Abstract:
The distribution efficiency of mobile advertising is extremely important for both advertisers and users. Few studies have been conducted on efficient ad delivery, especially user tracing and the budget. In order to obtain a feasible and effective mobile advertising distribution policy, the concept o...
Adaptive ensemble classification algorithm for data streams based on information entropy
SUN Yange, WANG Zhihai, YUAN Jidong, BAI Yang
2017, 47(7): 575-582. doi: 10.3969/j.issn.0253-2778.2017.07.005
Abstract:
The processing of streaming data implies new requirements concerning limited amount of memory, small processing time, and one scan of incoming instances. Most of the approaches in the literature to deal with concept drift only focus on gradual or abrupt concept drift and have not addressed the probl...
An effective memetic algorithm for heterogeneous vehicle CARP
ZHANG Yuzhou, LIU Xiaofei, HUANG Shihua, MEI Jun
2017, 47(7): 583-593. doi: 10.3969/j.issn.0253-2778.2017.07.006
Abstract:
In view of wider application background,heterogeneous vehicle capacitated arc routing problem (HVCARP) and approach for it are investigated in this paper. First, the cost of any route in HVCARP is divided into two parts, i.e., variable cost and fixed cost, and penalty coefficients for vehicles keep ...
Study on the feature velocity in ultrasonic guided wave of long bone based on the S transforms
SHAO Xingming, ZHENG Chichao, ZHAO Wei, PENG Hu
2017, 47(7): 594-601. doi: 10.3969/j.issn.0253-2778.2017.07.007
Abstract:
Ultrasonic guided wave can reflect the material properties of the long bone. The S transform with high-resolution features was proposed to extract the feature velocity in ultrasonic guided wave, and then to reflect the mechanical properties of long bone. Firstly, S transform was performed on the lon...
Quadratic residue codes over Fp+u Fp+ v Fp+uv Fp+v2 Fp+uv2 Fp
QIAN Liqin, SHI Minjia, SOK Lin, PING Jingshui
2017, 47(7): 602-609. doi: 10.3969/j.issn.0253-2778.2017.07.008
Abstract:
Let R=Fp+u Fp+v Fp+uv Fp+v2 Fp+uv2 Fp, where u2=1, v3=v, and p is an odd prime. Quadratic residue codes of prime length n=q over the ring R was investigated, where q (q≠p) is an odd prime such that p is a quadratic residue modulo q. The cyclic codes of length n over R w...
The Gray image of a class of constacyclic codes over the ring Fpm[u]/
DING Jian, LI Hongju
2017, 47(7): 610-620. doi: 10.3969/j.issn.0253-2778.2017.07.009
Abstract:
Let R(pm,k)=Fpm[u]/, where pj-1+1≤k≤pj and uk=0 for some positive prime number p and positive integer j. A new Gray map from R(pm,k) to Fpmpj was defined. It was proved that the Gray image of a linear (1+u+…+uk-1) constacyclic code of an arbitrary length N over R(pm,k) is a ...
Simultaneous improvement of Jsc, Voc and FF of polymer solar cells with CuI as hole transport layer
SU Hetang, ZHAO Yuxia, DING Jian, DONG Kexiu, YU Wenjuan, HE Ye
2017, 47(7): 621-626. doi: 10.3969/j.issn.0253-2778.2017.07.010
Abstract:
A novel buffer layer copper iodide (CuI) was introduced into PCDTBT, PC70BM polymer solar cells (PSCs), where the CuI acts simultaneously as of hole transport layer (HTL) and electron block layer (EBL). Through depositing the CuI between the polymer and Ag and Au anodes, the hole collection ability ...