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| 1 | Suppression of tumorigenesis by human mesenchymal stem cells in a hepatoma model显示文摘人的间充质的干细胞(hMSCs ) 装家到肿瘤地点并且禁止肿瘤细胞的生长。很少对内在的分子的机制被知道连接 hMSCs 到肿瘤房间的指向的抑制。在这研究,我们从 hMSCs 用一个动物移植模型,一个合作文化系统和调节媒介在二根人的 hepatoma 房间线(H7402 和 HepG2 ) 上调查了 hMSCs 的效果。当 SCID 老鼠与 H7402 细胞和 Z3 hMSCs 的一个相等的数字被注射时,动物移植研究证明肿瘤形成的潜伏的时间被延长并且肿瘤尺寸更小。当 co 有教养时与 Z3 房间, H7402 细胞增殖减少了,增加的 apoptosis,和 Bcl-2 的表示, c-Myc,原子抗原(PCNA ) 和 survivin 低是的增殖的房间调整了。在有调节媒介的处理源于 Z3 hMSC 文化以后, H4702 房间出现了减少的形成殖民地的能力和减少的增长。Immunoblot 分析证明 beta-catenin, Bcl-2, c-Myc, PCNA 和 survivin 表示是在 H7402 和 HepG2 房间调整的 down。总起来说,我们的调查结果证明 hMSCs 禁止 H7402 和 HepG2 人的肝癌症房间线的恶意的显型,它包括增长,形成殖民地的能力和 oncogene 表示试管内和体内。而且,我们的研究提供表明小径的 Wnt 可以在调停 hMSC 的指向和肿瘤房间抑制有一个角色的证据。 | Ling Qiao Zhili Xu Tiejun Zhao Zhigang Zhao Mingxia Shi Robert C Zhao Lihong Ye Xiaodong Zhang | 2008 | Cell Research2008，18，4： | 68 |
| 2 | A functional C-terminal TRAF3-binding site in MAVS participates in positive and negative regulation of the IFN antiviral response显示文摘病毒的 RNA 的识别由 cytosolic 传感器 retinoic 组织酸可诱导的基因 --(RIG-I ) 我导致表明与类型的产生达到顶点的串联的激活我干扰素(IFN ) 抗病毒的反应。对病毒的病原体的抗病毒、煽动性的回答的发作要求表明改编者, kinases 和 transcriptional 蛋白质到 mitochondrial 的调整空间与时间的招募抗病毒的发信号蛋白质(MAVS ) 。我们以前示威了 serine/threonine kinase IKKε被招募到 MAVS 后面的仙台或小囊的口炎病毒(VSV ) 感染的 C 终端区域,在 Lys500 由 MAVS 的连接 Lys63 的 polyubiquitination 调停了,导致下游的 IFN 发信号的抑制(Paz 等,摩尔房间 Biol, 2009 ) 。在这研究,我们证明 MAVS 的 C 终点在 MAVS 的 aa450-468 区域怀有一个新奇 TRAF3 有约束力的地点。一个一致交往 TRAF 主题(提姆) , 455-PEENEY-460,在这以内,地点为 TRAF3 绑定和 IFN 抗病毒的反应基因的激活被要求,而 TIM 的变化消除 TRAF3 绑定和下游的 IFN 反应。有表示 MAVS 的一个变异提姆的版本的构造的 MAVS −/− 老鼠胚胎成纤维细胞的宪法没能恢复抗病毒的反应或块 VSV 复制,而野类型的 MAVS 重新组成 VSV 复制的抗病毒的抑制。而且, IKKε 的招募;到在经由 Lys500 的 MAVS 的一个邻近的 C 终端地点(aa 468-540 ) , ubiquitination 减少了 TRAF3 绑定和蛋白质稳定性,因此贡献 IKKε调停 IFN 反应关机。这研究证明 MAVS 怀有功能的 C 终端参予 IFN 抗病毒的反应的积极、否定的规定的 TRAF3 有约束力的地点。 | Suzanne Paz Myriam Vilasco Steven J Werden Meztli Arguello Deshanthe Joseph-Pillai Tiejun Zhao Thi Lien-Anh Nguyen Qiang Sun Eliane F Meurs Rongtuan Lin John Hiscott | 2011 | Cell Research2011，21，6： | 12 |
| 3 | Terrestrial heat flow in Junggar Basin, Northwest China显示文摘Based on temperature logs of 117 boreholes and thermal conductivity of 119 rock samples, the first group of 35 heat flow data in the Junggar Basin are presented. The thermal gradients vary between 11.6 and 26.5℃/km , and the thermal conductivity changes from 0.17 to 3.6 W/mK. Heat flow ranges from 23.4 to 53.7 mW/m2 with a mean of (42.3±7.7) mW/m2. The heat flow pattern shows that heat flow is higher in the uplifts and lower in the depressions. The factors affecting the heat flow and its distribution include basin type, basement structure, sediment thickness, radioactive heat generation, etc. The overall low present-day heat flow in the Junggar Basin reflected its tectonothermal evolution characterized by lithospheric thickening, thrust and fault at shallow crust as well as consequently quick subsidence during the Late Cenozoic. | WANG Shejiao HU Shengbiao LI Tiejun WANG Jiyang ZHAO Wenzhi | 2000 | Chinese Science Bulletin2000，45，19： | 10 |
| 4 | Decreased miR-320 expression is associated with breast cancer progression, cell migration, and invasiveness via targeting Aquaporin 1显示文摘我们的以前的研究证明了 Aquaporin 1 (AQP1 ) 是在乳癌的 overexpressed。然而,机制留下逃犯。MicroRNA 320 (miR-320 ) downregulation 在癌症的各种各样的类型被报导了,并且它可以调整 AQP1 表示。在这研究, miR-320 和 AQP1 表情被量的反向的 transcription-PCR 调查,在 situ 杂交,和 immunohistochemistry。这些分子的 clinicopathological 含意也被分析。我们发现那 miR-320 表情在人的乳癌病人是在血浆和肿瘤织物的 downregulated。幸存分析证明 miR-320 的那减少的表情和 AQP1 的 overexpression 与更坏的预后被联系。酶试金证明 miR-320 否定地调整 AQP1 表示。另外,房间增长,移植,和侵略试金被执行在乳癌房间上调查 miR-320 的效果。我们的结果证明 miR-320 overexpression 由 downregulating AQP1 在乳癌房间禁止房间增长,移植,和侵略。这些观察建议 miR-320 downregulation 可以在乳癌提高 AQP1 表示,赞成肿瘤前进。我们的调查结果显示 miR-320 和 AQP1 可以在乳癌的治疗用作预示的 biomarkers 和治疗学的目标。 | Liang Luo Rui Yang Shaojie Zhao Yu Chen Shanchao Hong Ke Wang Tiejun Wang Jing Cheng Ting Zhang Daozhen Chen | 2018 | Acta Biochimica et Biophysica Sinica2018，50，5： | 6 |
| 5 | Enhanced thermoelectric performance of n-type bismuth-telluridebased alloys via In alloying and hot deformation for mid-temperature power generation显示文摘Bismuth telluride-based alloys are the most widely used commercial thermoelectric(TE)material for room temperature refrigeration.Here,we successfully shift up the optimum figure of merit of n-type bismuth-telluride-based TE materials for mid-temperature power generation.SbI_(3)doping is used to regulate the carrier concentration and Indium alloying to increase the bandgap,suppressing the detrimental bipolar conduction in the mid-temperature range.The lattice thermal conductivity is significantly reduced due to the multiscale microstructures induced via hot deformation.As a result,a peak zT of~1.1 was attained at 625 K for Bi_(1.85)In_(0.15)Te_(2)Se+0.25 wt%SbI_(3)alloy after hot deformation,showing a great application prospect of this alloy in mid-temperature TE power generation. | Feng Li Renshuang Zhai Yehao Wu Zhaojun Xu Xinbing Zhao Tiejun Zhu | 2018 | Journal of Materiomics2018，4，3： | 5 |
| 6 | Approaching the minimum lattice thermal conductivity of p-type SnTe thermoelectric materials by Sb and Mg alloying显示文摘SnTe, as the nontoxic analogue to high-performance PbTe thermoelectric material, has captured the worldwide interest recently. Many triumphant instances focus on the strategies of band convergence, resonant doping, and nano-precipitates phonon scattering. Herein, the p-type SnTe-based materials Sn0.85-xSb0.15MgxTe (x=0-0.10) are fabricated and a combined effect of Sb and Mg is investigated. Sb alloying tunes the hole carrier concentration of SnTe and decreases the lattice thermal conductivity. Mg alloying leads to a nearly hundredfold rise of disorder parameter due to the large mass and strain fluctuations, and as a consequence the lattice thermal conductivity decreases further down to ~0.64Wm^-1K^-1 at 773K, close to the theoretical minimum of the lattice thermal conductivity (~0.50Wm^-1K^-1) of SnTe. In conjunction with the enhancement of the Seebeck coefficient caused by band convergence due to Mg alloying, the maximum zTmax reaches ~1.02 and the device zTdevice of ~0.50 at 773K for Sn0.79Sb0.15Mg0.06Te, suggesting this SnTe-based composition has a promising potential in intermediate temperature thermoelectric applications. | Tiezheng Fu Jiazhan Xin Tiejun Zhu Jiajun Shen Teng Fang Xinbing Zhao | 2019 | Science Bulletin2019，64，14： | 5 |
| 7 | Anisotropic thermoelectric properties of layered compound SnSe2显示文摘Similar to high performance SnSe thermoelectrics, SnSe2 is also a layered structured semiconductor.However, its anisotropic thermoelectric properties are less experimentally investigated. In this work,Cl-doped SnSe2 bulk materials are successfully prepared, and their thermal stability and anisotropic transport properties are systematically studied. Unexpectedly, different from the theoretical prediction and other typical layered thermoelectric compounds like Bi_2Te_3, the out-of-plane zT_c value is higher than in-plane zT_a for the same composition. The zT value is significantly enhanced by Cl doping. A maximum zT_c of ~0.4 at 673 K is achieved in SnSe_(1.88)Cl_(0.12), twice higher than previously reported Cl-doped SnSe_2 synthesized by the solvothermal method. | Peipei Xu Tiezheng Fu Jiazhan Xin Yintu Liu Pingjun Ying Xinbing Zhao Hongge Pan Tiejun Zhu | 2017 | Science Bulletin2017，62，24： | 4 |
| 8 | High-Performance Mg_(3)Sb_(2-x)Bi_(x) Thermoelectrics:Progress and Perspective显示文摘Since the first successful implementation of n-type doping,low-cost Mg_(3)Sb_(2-x)Bi_(x) alloys have been rapidly developed as excellent thermoelectric materials in recent years.An average figure of merit zT above unity over the temperature range 300-700 K makes this new system become a promising alternative to the commercially used n-type Bi_(2)Te_(3-x)Se_(x) alloys for either refrigeration or low-grade heat power generation near room temperature.In this review,with the structure-property-application relationship as the mainline,we first discuss how the crystallographic,electronic,and phononic structures lay the foundation of the high thermoelectric performance.Then,optimization strategies,including the physical aspects of band engineering with Sb/Bi alloying and carrier scattering mechanism with grain boundary modification and the chemical aspects of Mg defects and aliovalent doping,are extensively reviewed.Mainstream directions targeting the improvement of zT near room temperature are outlined.Finally,device applications and related engineering issues are discussed.We hope this review could help to promote the understanding and future developments of low-cost Mg_(3)Sb_(2-x)Bi_(x) alloys for practical thermoelectric applications. | Airan Li Chenguang Fu Xinbing Zhao Tiejun Zhu | 2020 | Research2020，，1： | 4 |
| 9 | Two-stage approach to full Chinese parsing显示文摘Natural language parsing is a task of great importance and extreme difficulty. In this paper, we present a full Chinese parsing system based on a two-stage approach. Rather than identifying all phrases by a uniform model, we utilize a divide and conquer strategy. We propose an effective and fast method based on Markov model to identify the base phrases. Then we make the first attempt to extend one of the best English parsing models i.e. the head-driven model to recognize Chinese complex phrases. Our two-stage approach is superior to the uniform approach in two aspects. First, it creates synergy between the Markov model and the head-driven model. Second, it reduces the complexity of full Chinese parsing and makes the parsing system space and time efficient. We evaluate our approach in PARSEVAL measures on the open test set, the parsing system performances at 87.53% precision, 87.95% recall. | 曹海龙 Zhao Tiejun Yang Muyun Li Sheng | 2005 | High Technology Letters2005，11，4： | 3 |
| 10 | A Research on Bilingual Dictionary Based Sentence Alignment for Chinese English Parallel Corpus显示文摘Parallel corpus is of great importance to machine translation, and automatic sentence alignment is the first step towards its processing. This paper puts forward a bilingual dictionary based sentence alignment method for Chinese English parallel corpus, which differs from previous length based algorithm in its knowledge-rich approach. Experimental result shows that this method produces over 93% accuracy with usual English-Chinese dictionaries whose translations cover 31 88%~47 90% of the corpus. | 杨沐昀 Li Sheng Zhao Tiejun Lu Yajuan Liu Zhanyi | 2002 | High Technology Letters2002，8，1： | 3 |
| 11 | A CONDITIONAL RANDOM FIELDS APPROACH TO BIOMEDICAL NAMED ENTITY RECOGNITION显示文摘Named entity recognition is a fundamental task in biomedical data mining. In this letter, a named entity recognition system based on CRFs (Conditional Random Fields) for biomedical texts is presented. The system makes extensive use of a diverse set of features, including local features, full text features and external resource features. All features incorporated in this system are described in detail, and the impacts of different feature sets on the performance of the system are evaluated. In order to improve the performance of system, post-processing modules are exploited to deal with the abbrevia- tion phenomena, cascaded named entity and boundary errors identification. Evaluation on this system proved that the feature selection has important impact on the system performance, and the post-processing explored has an important contribution on system performance to achieve better re- sults. | Wang Haochang Zhao Tiejun Li Sheng Yu Hao | 2007 | Journal of Electronics(China)2007，24，6： | 3 |
| 12 | Convolutional Multi-Head Self-Attention on Memory for Aspect Sentiment Classification显示文摘This paper presents a method for aspect based sentiment classification tasks, named convolutional multi-head self-attention memory network(CMA-Mem Net). This is an improved model based on memory networks, and makes it possible to extract more rich and complex semantic information from sequences and aspects. In order to fix the memory network’s inability to capture context-related information on a word-level,we propose utilizing convolution to capture n-gram grammatical information. We use multi-head self-attention to make up for the problem where the memory network ignores the semantic information of the sequence itself. Meanwhile, unlike most recurrent neural network(RNN) long short term memory(LSTM), gated recurrent unit(GRU) models, we retain the parallelism of the network. We experiment on the open datasets Sem Eval-2014 Task 4 and Sem Eval-2016 Task 6. Compared with some popular baseline methods, our model performs excellently. | Yaojie Zhang Bing Xu Tiejun Zhao | 2020 | IEEE/CAA Journal of Automatica Sinica2020，7，4： | 3 |
| 13 | Application of immune checkpoint targets in the anti-tumor novel drugs and traditional Chinese medicine development显示文摘Immune checkpoints are the crucial regulators of immune system and play essential roles in maintaining self-tolerance,preventing autoimmune responses,and minimizing tissue damage by regulating the duration and intensity of the immune response.Furthermore,immune checkpoints are usually overexpressed in cancer cells or noninvasive cells in tumor tissues and are capable of suppressing the antitumor response.Based on substantial physiological analyses as well as preclinical and clinical studies,checkpoint molecules have been evaluated as potential therapeutic targets for the treatment of multiple types of cancers.In the last few years,extensive evidence has supported the immunoregulatory effects of traditional Chinese medicines(TCMs).The main advantage of TCMs and natural medicine is that they usually contain multiple active components,which can act on multiple targets at the same time,resulting in additive or synergistic effects.The strong immune regulation function of traditional Chinese medicine on immune checkpoints has also been of great interest.For example,Astragalus membranaceus polysaccharides can induce anti-PD-1 antibody responses in animals,and these antibodies can overcome the exhaustion of immune cells under tumor immune evasion.Furthermore,many other TCM molecules could also be novel and effective drug candidates for the treatment of cancers.Therefore,it is essential to assess the application of immune checkpoints in the development of new drugs and TCMs.In this review,we focus on research progress in the field of immune checkpoints based on three topics:(1)immune checkpoint targets and pathways,(2)development of novel immune checkpoint-based drugs,and(3)application of immune checkpoints in the development of TCMs. | Yuli Wang Xingyan Zhang Yuyan Wang Wenjing Zhao Huling Li Lixing Zhang Xinping Li Tiejun Zhang Hongbing Zhang He Huang Changxiao Liu | 2021 | Acta Pharmaceutica Sinica B2021，11，10： | 3 |
| 14 | Effect of Ermiao Fang with Xixin(Herba Asari Mandshurici) on bone marrow stem cell directional homing to a focal zone in an osteoarthritis rat model显示文摘OBJECTIVE: To investigate the effects of Ermiao Fang(EM) with medical guide Xixin(Herba Asari Mandshurici)(HAM) on bone marrow stem cell migration to a focal zone in osteoarthritis(OA) rats.METHODS: OA rats were induced by arthrectomy and assigned to sham-operated, model, EM, or EM plus HAM groups.All rats were injected with recombinant human granulocyte colony-stimulating factor 30μg·kg-1·d-1for7 days and treated with EMor EM plus HAM at 1.6 or 1.9 g·kg-1·d-1 for 3 or 6 weeks, respectively. Chondrocyte apoptosis and cartilage matrix components were tested by transferase-mediated deoxyuridine triphosphate-biotin nick end labeling assay and special staining. Levels of interleukin-1 beta(IL-1β) tumor necrosis factor alpha(TNF-α) nitric oxide(NO), and inducible nitric oxide synthase(iNOS) in serum were detected by enzyme-linked immunosorbent assay or radioimmunoassay. Matrix metalloproteinases(MMPs)-13,tissue inhibitors of metalloproteinases(TIMPs)-1,Bromodeoxyuridine(BrdU), cluster of differentiation 34(CD34), and stromal cell-derived factor 1(SDF-1) were measured by immunohistochemical assay.RESULTS:The EM and EM plus HAM groups had significantly less cartilage damage and synovium inflammation the model group. Moreover, the EM and EM plus HAM groups had less chondrocyte apoptosis and more proteoglycan and collagen content than the model group.The EM and EMplus HAM groups had obviously higher MMPs-13 and TIMPs-1 expression in the cartilage than the model group. Moreover, the two formula groups had less release of IL-1β, TNF-α, NO, and iNOS than model group. Importantly, the expressions of BrdU, CD34,and SDF-1 in cartilage were significantly higher in the EM and EM plus HAM-Medtreated rats than model group. Notably, the EM plus HAM treatment seemed to have the greatest effects.CONCLUSION: HAM improves the therapeutic effects of EM on OA rats by enhancing BMSC directional homing to the focal zone. | Ying Xu Guojing Dai Qian Liu Hongwei Zhu Weiheng Chen Ping Zhang Tiejun Zhao Na Lin | 2014 | Journal of Traditional Chinese Medicine2014，34，4： | 3 |
| 15 | Electrochemical Performance of Surface-Modified LiMn_2O_4 Prepared by a Melting Impregnation Method显示文摘同样准备的 LiMn_2O_4 的表面与 ZnO 被修改, AI_2O_3,咕咕叫用融化受精的简单硝酸盐的 andLiCoO_2 方法。传播电子显微镜学(TEM ) 研究在 50 nm 是的 10 ~ 的范围显示了那个氧化物 nano 粒子在尖晶石的表面上涂。表面修改了样品在房间温度和 55 deg 比 unmodifiedLiMn_2O_4 尖晶石显示出更好的能力保留 C。在这些样品之中, ZnO-modifiedLiMn_2O_4 显示出能力和褪色的一个低能力在房间温度每周期 0.036percent 评估的高度的最好的联合并且 0.064% 每在 55 deg C 的周期。为表面的改进修改了 LiMn_2O_4 能在表面上被归因于 Mn 溶解和 O 损失的抑制。 | Jian TU Xinbing ZHAO Gaoshao CAO Tiejun ZHU Dagao ZHUANG diangping TU | 2006 | Journal of Materials Science & Technology2006，22，4： | 3 |
| 16 | Study on traveling magnetic field casting of sheet components显示文摘The distribution of a magnetic field over an inductor used for sheet castings has been investigated experimentally.With an increase in height from the surface, the magnetic field density decreases according to the exponential law.In the transverse direction, the magnetic field density is approximately uniform except near the edges.The magnetic field density is direct proportional to the number of turns multiplied by the current in amperes.Ferro-magnetic material in the upper mould can enhance the magnetic field density.Under the electromagnetic force, the mould-filling process of sheet casings has been studied by physical simulation method.The difference in filling capability between gravity casting and travelling magnetic field casting has been studied.The electromagnetic force can enhance the filling process, but it also brings a problem.With an increase in the magnetic field density, the surface quality of the aluminum alloy sheet castings becomes poor.The reason is discussed. | Su Yanqing Xu Yanjin Zhao Lei Zhang Tiejun Wu Shiping Guo Jingjie | 2010 | China Foundry2010，7，3： | 3 |
| 17 | Preparation of eco-friendly construction bricks from hematite tailings显示文摘 | Yongliang Chen Yimin Zhang Tiejun Chen Yunliang Zhao Shenxu Bao | 2010 | Construction and Building Materials2010，，4： | 2 |
| 18 | Long-term Behavior of Fiber Reinforced Concrete Exposed to Sulfate Solution Cycling in Drying-immersion显示文摘The damage process and corrosion ion distribution in concrete, which was exposed to 60 and 170 drying-immersion cycles of sulfate solution, were systematically investigated. The effects of plain concrete, plain concrete mixed with 4 and 8 kg/m^3 modified PP fiber and high-performance concrete(HPC) mixed with 0.8 kg/m^3 fine PP fiber on the damage process were also studied. The experimental results showed that thenarditeinduced surface scaling, as well as gypsum-and ettringite-induced cracks, were the main degradation forms of concrete under attack of sulfate solution and drying–immersion cycles. The relative dynamic modulus of elasticity of concrete initially increased, then reached stability and finally decreased to failure. The sulfate diffusion coefficients of plain and HPC were 10^(-12) and 10^(-13) m^2/s, respectively. The concentration of sodium ion increased with depth, then maintained stability and finally decreased rapidly with concrete depth. The content of calcium ion on the concrete surface was 110%-150% of that in the interior of specimens. Although fiber worsened the surface scaling of concrete, better resistance capacity of sulfate ion penetration into concrete was observed in plain concrete with 4 kg/m^3 modified PP fiber and HPC. | 耿永娟 金祖权 HOU Baorong ZHAO Tiejun GAO Song | 2017 | Journal of Wuhan University of Technology(Materials Science)2017，32，4： | 2 |
| 19 | Impacts of Land-Use Data on the Simulation of Surface Air Temperature in Northwest China显示文摘This study examines the impacts of land-use data on the simulation of surface air temperature in Northwest China by the Weather Research and Forecasting(WRF) model. International Geosphere–Biosphere Program(IGBP) landuse data with 500-m spatial resolution are generated from Moderate Resolution Imaging Spectroradiometer(MODIS)satellite products. These data are used to replace the default U.S. Geological Survey(USGS) land-use data in the WRF model. Based on the data recorded by national basic meteorological observing stations in Northwest China, results are compared and evaluated. It is found that replacing the default USGS land-use data in the WRF model with the IGBP data improves the ability of the model to simulate surface air temperature in Northwest China in July and December 2015. Errors in the simulated daytime surface air temperature are reduced, while the results vary between seasons. There is some variation in the degree and range of impacts of land-use data on surface air temperature among seasons. Using the IGBP data, the simulated daytime surface air temperature in July 2015 improves at a relatively small number of stations, but to a relatively large degree; whereas the simulation of daytime surface air temperature in December 2015 improves at almost all stations, but only to a relatively small degree(within 1°C). Mitigation of daytime surface air temperature overestimation in July 2015 is influenced mainly by the change in ground heat flux. The modification of underestimated temperature comes mainly from the improvement of simulated net radiation in December 2015. | Yaohui LI Cailing ZHAO Tiejun ZHANG Wei WANG Haixia DUAN Yuanpu LIU Yulong REN Zhaoxia PU | 2018 | Journal of Meteorological Research2018，32，6： | 2 |
| 20 | A new approach to query expansion in information retrieval显示文摘To eliminate the mismatch between words of relevant documents and user's query and more seriousnegative effects it has on the performance of information retrieval,a method of query expansion on the ba-sis of new terms co-occurrence representation was put forward by analyzing the process of producingquery.The expansion terms were selected according to their correlation to the whole query.At the sametime,the position information between terms were considered.The experimental result on test retrievalconference(TREC)data collection shows that the method proposed in the paper has made an improve-ment of 5%~19% all the time than the language modeling method without expansion.Compared to thepopular approach of query expansion,pseudo feedback,the precision of the proposed method is competi-tive. | 李卫疆 Zhao Tiejun Wang Xian'gang | 2008 | High Technology Letters2008，14，1： | 2 |
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