Journal articles: 'Tolerant retrieval'

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Oflazer, K. "Error-tolerant retrieval of trees." IEEE Transactions on Pattern Analysis and Machine Intelligence 19, no. 12 (1997): 1376–80. http://dx.doi.org/10.1109/34.643897.

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Wang, Tian-Yin, Xiao-Qiu Cai, and Rui-Ling Zhang. "Fault-tolerant symmetrically-private information retrieval." International Journal of Modern Physics B 30, no. 25 (September 28, 2016): 1650178. http://dx.doi.org/10.1142/s0217979216501782.

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We propose two symmetrically-private information retrieval protocols based on quantum key distribution, which provide a good degree of database and user privacy while being flexible, loss-resistant and easily generalized to a large database similar to the precedent works. Furthermore, one protocol is robust to a collective-dephasing noise, and the other is robust to a collective-rotation noise.

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Mandl, T. "Tolerant Information Retrieval with Backpropagation Networks." Neural Computing & Applications 9, no. 4 (December 7, 2000): 280–89. http://dx.doi.org/10.1007/s005210070005.

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Punithavathi. "A Fault Tolerant Mobile Agent Information Retrieval System." Journal of Computer Science 6, no. 5 (May 1, 2010): 553–56. http://dx.doi.org/10.3844/jcssp.2010.553.556.

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Anastasiades, Carlos, Tobias Schmid, Jürg Weber, and Torsten Braun. "Information-centric content retrieval for delay-tolerant networks." Computer Networks 107 (October 2016): 194–207. http://dx.doi.org/10.1016/j.comnet.2016.03.006.

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Sai, K., A. Sandeep, and B. Tarakeswara. "Secure Data Retrieval for Decentralized Disruption-Tolerant Military Networks." International Journal of Computer Applications 132, no. 17 (December 17, 2015): 15–17. http://dx.doi.org/10.5120/ijca2015907683.

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Srihari, B., K. V. G. N. Naidu, and P. Nirupama. "Protect Knowledge Retrieval for Localized Disruption Tolerant Military Networks." International Journal of Computer Trends and Technology 24, no. 3 (June 25, 2015): 108–12. http://dx.doi.org/10.14445/22312803/ijctt-v24p124.

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Hur, Junbeom, and Kyungtae Kang. "Secure Data Retrieval for Decentralized Disruption-Tolerant Military Networks." IEEE/ACM Transactions on Networking 22, no. 1 (February 2014): 16–26. http://dx.doi.org/10.1109/tnet.2012.2210729.

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Silva, Bruno M. C., Vasco N. G. J. Soares, and Joel J. P. C. Rodrigues. "Towards Intelligent Caching and Retrieval Mechanisms for Upcoming Proposals on Vehicular Delay-Tolerant Networks." Journal of Communications Software and Systems 7, no. 1 (March 22, 2011): 1. http://dx.doi.org/10.24138/jcomss.v7i1.181.

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Vehicular delay-tolerant networks (VDTNs) are opportunistic networks that enable connectivity in challenged scenarios with unstable links where end-to-end communications may not exist. VDTN architecture handles non-real timeapplications using vehicles to relay messages between network nodes. To address the problem of intermittent connectivity, network nodes store messages on their buffers, carrying them through the network while waiting for transfer opportunities. The storage capacity of the nodes affects directly the network performance. Therefore, it is important to incorporate suitable network protocols using self-contained messages to improve communication that supports store-carry-and-forward operation procedures. Clearly, such procedures motivate content cachingand retrieval. This paper surveys the state-of-the art on intelligent caching and retrieval mechanisms focusing on ad-hoc and delay tolerant networks (DTN). These approaches can offer important insights for upcoming proposals on intelligent caching and retrieval mechanisms for VDTNs.

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Sok, Phearin, Sueng Hwan Lee, and Kee Cheon Kim. "DPRoPHET Routing in Delay Tolerant Network." Advanced Materials Research 684 (April 2013): 543–46. http://dx.doi.org/10.4028/www.scientific.net/amr.684.543.

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PRoPHET uses its delivery predictability of node encounters and transitivity to forward bundles to its neighbor node. Regardless of their distance, it faces delivery dilemmas in a source node and drawbacks of low delivery ratio and high delay in case two or more neighbor nodes carry equal delivery predictability. To solve such consequences, we propose a Distance and Probabilistic Routing Protocol using History of Encounters and Transitivity (DPRoPHET) with the use of cross layer implementation for distance value retrieval. Our simulation results show that, by adding distance metric to the existing delivery predictability vector, DPRoPHET outperforms PRoPHET.

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G, Saidivya, Rajendra C, and Sreenatha sharma V. "Efficient and Secure Information Retrieval for Decentralized Disruption Tolerant Military Networks." Journal of Applied Physics and Engineering 1, no. 1 (June 30, 2016): 22–25. http://dx.doi.org/10.26524/jap4.

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Gautama, Sidharta, Rik Bellens, Guy De Tre, and Wilfried Philips. "Relevance Criteria for Spatial Information Retrieval Using Error-Tolerant Graph Matching." IEEE Transactions on Geoscience and Remote Sensing 45, no. 4 (April 2007): 810–17. http://dx.doi.org/10.1109/tgrs.2007.892006.

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Staehle, H. J., M. J. Koch, and T. Pioch. "Double-blind Study on Materials Testing with Applied Kinesiology." Journal of Dental Research 84, no. 11 (November 2005): 1066–69. http://dx.doi.org/10.1177/154405910508401119.

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Applied Kinesiology (AK) is a scientifically unproven method used in complementary medicine to recognize the (in)tolerance of dental materials. Test-retest reliability of AK was examined. The working hypothesis was the assumption that the reliability of AK would not exceed random chance. Two dentists qualified in AK examined 112 volunteers to determine individual (in)tolerance toward two dental composite materials. After the first examination, 31 subjects were excluded from further testing. At the end of the open test phase, 34 of 81 participants had been classified as “tolerant”, and seven as “intolerant” to both materials. The remaining 40 individuals showed a combination of either tolerant (to material I)/intolerant (to material II), or the reverse (n = 20 each). Retrieval rate was tested under blind conditions. In 14 cases, the results of the open and blinded tests matched, whereas in 26 cases they did not (95% confidence interval, 21%-52%; p = 0.98). This outcome confirmed our working hypothesis.

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Lee, Ju. "Sequential Ensembles Tolerant to Synthetic Aperture Radar (SAR) Soil Moisture Retrieval Errors." Geosciences 6, no. 2 (April 6, 2016): 19. http://dx.doi.org/10.3390/geosciences6020019.

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Chung-Hsien Wu, Yu-Hsien Chiu, and Kung-Wei Cheng. "Error-tolerant sign retrieval using visual features and maximum a posteriori estimation." IEEE Transactions on Pattern Analysis and Machine Intelligence 26, no. 4 (April 2004): 495–508. http://dx.doi.org/10.1109/tpami.2004.1265864.

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Char, J. M., V. Cherkassy, H. Wechsler, and G. L. Zimmerman. "Distributed and fault-tolerant computation for retrieval tasks using distributed associative memories." IEEE Transactions on Computers 37, no. 4 (April 1988): 484–90. http://dx.doi.org/10.1109/12.2196.

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Yoo, Yongseok, and Woori Kim. "On Decoding Grid Cell Population Codes Using Approximate Belief Propagation." Neural Computation 29, no. 3 (March 2017): 716–34. http://dx.doi.org/10.1162/neco_a_00902.

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Neural systems are inherently noisy. One well-studied example of a noise reduction mechanism in the brain is the population code, where representing a variable with multiple neurons allows the encoded variable to be recovered with fewer errors. Studies have assumed ideal observer models for decoding population codes, and the manner in which information in the neural population can be retrieved remains elusive. This letter addresses a mechanism by which realistic neural circuits can recover encoded variables. Specifically, the decoding problem of recovering a spatial location from populations of grid cells is studied using belief propagation. We extend the belief propagation decoding algorithm in two aspects. First, beliefs are approximated rather than being calculated exactly. Second, decoding noises are introduced into the decoding circuits. Numerical simulations demonstrate that beliefs can be effectively approximated by combining polynomial nonlinearities with divisive normalization. This approximate belief propagation algorithm is tolerant to decoding noises. Thus, this letter presents a realistic model for decoding neural population codes and investigates fault-tolerant information retrieval mechanisms in the brain.

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Frosini, Patrizio, and Claudia Landi. "Persistent Betti numbers for a noise tolerant shape-based approach to image retrieval." Pattern Recognition Letters 34, no. 8 (June 2013): 863–72. http://dx.doi.org/10.1016/j.patrec.2012.10.015.

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Almoro, P. F., G. Pedrini, F. Zhang, A. M. S. Maallo, A. Anand, P. N. Gundu, W. Wang, A. Asundi, W. Osten, and S. G. Hanson. "Fault-Tolerant Characterization of Phase Objects Using a Speckle-Based Phase Retrieval Technique." International Journal of Optomechatronics 4, no. 4 (November 8, 2010): 397–410. http://dx.doi.org/10.1080/15599612.2010.522758.

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Androutsos, P., D. Androutsos, and A. N. Venetsanopoulos. "A distributed fault-tolerant MPEG-7 retrieval scheme based on small world theory." IEEE Transactions on Multimedia 8, no. 2 (April 2006): 278–88. http://dx.doi.org/10.1109/tmm.2005.864276.

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Gao, Hong-Jiang, Hong Sun, Bang-Hai Xu, Ying He, and Zheng Qin. "Rigorous Development of Fault-Tolerant Transactions for Information Retrieval Systems Using Event-B." Information Technology Journal 7, no. 6 (August 1, 2008): 868–75. http://dx.doi.org/10.3923/itj.2008.868.875.

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Veeravalli, Bharadwaj, Chaoyang Chen, and Viktor K. Prasanna. "Fault-tolerant analysis for multiple servers movie retrieval strategy for distributed multimedia applications." Multimedia Tools and Applications 32, no. 1 (October 20, 2006): 1–27. http://dx.doi.org/10.1007/s11042-006-0052-0.

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Feng, Zhenxin, and Kwan-Wu Chin. "A Novel Data Centric Information Retrieval Protocol for Queries in Delay Tolerant Networks." Journal of Network and Systems Management 23, no. 4 (August 2, 2014): 870–901. http://dx.doi.org/10.1007/s10922-014-9326-4.

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Anelli, M., L. Cinque, and Enver Sangineto. "Deformation tolerant generalized Hough transform for sketch-based image retrieval in complex scenes." Image and Vision Computing 25, no. 11 (November 2007): 1802–13. http://dx.doi.org/10.1016/j.imavis.2007.03.002.

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Sandhu, Devinder, Andrew Pallete, Manju V. Pudussery, and Kulbhushan K. Grover. "Contrasting Responses of Guar Genotypes Shed Light on Multiple Component Traits of Salinity Tolerance Mechanisms." Agronomy 11, no. 6 (May 26, 2021): 1068. http://dx.doi.org/10.3390/agronomy11061068.

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Guar (Cyamopsis tetragonoloba (L.) Taub.) is a legume crop, and gum derived from its seeds has various industrial applications. Due to its tolerance to various abiotic stresses, guar can be grown under water-deficit or high-salinity conditions. In this investigation, four diverse guar genotypes that performed at a similar level in field conditions were evaluated in a salinity experiment in the greenhouse lysimeter system. Based on the salt tolerance index (STI) for shoot biomass, root biomass, shoot length, and root length, Matador and PI 268229 were classified as salt-tolerant, and PI 340261 and PI 537281 as salt-sensitive. Leaf Na concentrations were 4- to 5.5-fold higher, and leaf Cl concentrations were 1.6- to 1.9-fold higher in salt-sensitive lines than salt-tolerant lines under salinity. The strong associations between the leaf K concentrations under salinity compared to the control (K-salinity/K-control) ratio and STI for stem and root length advocate higher importance of K-salinity/K-control than total leaf K concentrations. The expression analyses of genes involved in Na+ and Cl− transport revealed the importance of different component traits of salinity tolerance mechanisms, such as the exclusion of Na+/Cl− from the root, sequestration of Cl− in root vacuoles, retrieval of Na+/Cl− from xylem during salinity stress, root-to-shoot Na+/Cl− translocation, and K+-Na+ homeostasis.

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Hogan, Robin J. "A Variational Scheme for Retrieving Rainfall Rate and Hail Reflectivity Fraction from Polarization Radar." Journal of Applied Meteorology and Climatology 46, no. 10 (October 1, 2007): 1544–64. http://dx.doi.org/10.1175/jam2550.1.

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Abstract Polarization radar offers the promise of much more accurate rainfall-rate R estimates than are possible from radar reflectivity factor Z alone, not only by better characterization of the drop size distribution, but also by more reliable correction for attenuation and the identification of hail. However, practical attempts to implement retrieval algorithms have been hampered by the difficulty in coping with the inherent noise in the polarization parameters. In this paper, a variational retrieval scheme is described that overcomes these problems by employing a forward model for differential reflectivity Zdr and differential phase shift ϕdp and iteratively refining the coefficient a in the relationship Z = aRb such that the difference between the forward model and the measurements is minimized in a least squares sense. Two methods are used to ensure that a varies smoothly in both range and azimuth. In range, a is represented by a set of cubic-spline basis functions; in azimuth, the retrieval at one ray is used as a constraint on the next. The result of this smoothing is that the retrieval is tolerant of random errors in Zdr of up to 1 dB and in ϕdp of up to 5°. Correction for attenuation is achieved simply and effectively by including its effects in the forward model. If hail is present then the forward model is unable to match the observations of Zdr and ϕdp simultaneously. This enables a first pass of the retrieval to be used to identify the radar pixels that contain hail, followed by a second pass in which the fraction of the Z in those gates that is due to hail is retrieved, this time with the scheme being able to forward-model both Zdr and ϕdp accurately. The scheme is tested on S-band radar data from southern England in cases of rain, spherical hail, oblate hail, and mixtures of rain and hail. It is found to be robust and stable, even in the presence of differential phase shift on backscatter.

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Yang, Bo, and Ali R. Hurson. "Similarity-Based Clustering Strategy for Mobile Ad Hoc Multimedia Databases." Mobile Information Systems 1, no. 4 (2005): 253–73. http://dx.doi.org/10.1155/2005/317136.

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Multimedia data are becoming popular in wireless ad hoc environments. However, the traditional content-based retrieval techniques are inefficient in ad hoc networks due to the multiple limitations such as node mobility, computation capability, memory space, network bandwidth, and data heterogeneity. To provide an efficient platform for multimedia retrieval, we propose to cluster ad hoc multimedia databases based on their semantic contents, and construct a virtual hierarchical indexing infrastructure overlaid on the mobile databases. This content-aware clustering scheme uses a semantic-aware framework as the theoretical foundation for data organization. Several novel techniques are presented to facilitate the representation and manipulation of multimedia data in ad hoc networks: 1) using concise distribution expressions to represent the semantic similarity of multimedia data, 2) constructing clusters based on the semantic relationships between multimedia entities, 3) reducing the cost of content-based multimedia retrieval through the restriction of semantic distances, and 4) employing a self-adaptive mechanism that dynamically adjusts to the content and topology changes of the ad hoc networks. The proposed scheme is scalable, fault-tolerant, and efficient in performing content-based multimedia retrieval as demonstrated in our combination of theoretical analysis and extensive experimental studies.

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Frosini, Patrizio, and Claudia Landi. "Corrigendum to “Persistent Betti numbers for a noise tolerant shape-based approach to image retrieval”." Pattern Recognition Letters 34, no. 11 (August 2013): 1320–21. http://dx.doi.org/10.1016/j.patrec.2013.04.001.

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De Souza, Claudio Diego Teixeira, Danielle Lopes Ferreira, Carlos Alberto Vieira Campos, Antonio Carlos De Oliveira Junior, Kleber Vieira Cardoso, and Waldir Moreira. "Employing Social Cooperation to Improve Data Discovery and Retrieval in Content-Centric Delay-Tolerant Networks." IEEE Access 7 (2019): 137930–44. http://dx.doi.org/10.1109/access.2019.2943080.

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Zhang, Sinan, and Quan Wang. "Inverse Retrieval of Chlorophyll From Reflected Spectra for Assimilating Branches of Drought-Tolerant Tamarix ramosissima." IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 8, no. 4 (April 2015): 1498–505. http://dx.doi.org/10.1109/jstars.2015.2419225.

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Dong, Zhichao, and Haobo Cheng. "Highly noise-tolerant hybrid algorithm for phase retrieval from a single-shot spatial carrier fringe pattern." Optics and Lasers in Engineering 100 (January 2018): 176–85. http://dx.doi.org/10.1016/j.optlaseng.2017.08.011.

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Offiong, Umoh Bassey, and M. B. Mukesh krishnan. "Securing Data Retrieval for Decentralized Disruption- Tolerant Military Networks (DTNs) using Cipher text- Policy Attribute-Based Encryption." International Journal of Engineering Trends and Technology 26, no. 5 (August 25, 2015): 276–78. http://dx.doi.org/10.14445/22315381/ijett-v26p248.

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Li, Chao, Huimei Lu, Yong Xiang, and Rui Gao. "Geo-DMP: A DTN-Based Mobile Prototype for Geospatial Data Retrieval." ISPRS International Journal of Geo-Information 9, no. 1 (December 20, 2019): 8. http://dx.doi.org/10.3390/ijgi9010008.

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Geospatial information is gaining immense interest and importance as we enter the era of highly developed transportation and communication. Despite the proliferation of cellular network and WiFi, on some occasions, users still face barriers to accessing geospatial data. In this paper, we design and implement a distributed prototype system with a delay/disruption tolerant network (DTN), named Geo-DMP, for cooperatively and opportunistically sharing and exchanging named geospatial contents in a device-to-device fashion. First of all, we construct a lightweight “content agent” module to bridge the gap between the application layer and the underlying DTN protocol stack. Afterwards, to profile the mobility history of users in practical geospatial environments, we present a map segmentation scheme based on road network and administrative subdivision information. Subsequently, we associate the regional movement history information with the content retrieval process to devise a hierarchical and region-oriented DTN routing scheme for both requests and responses. Finally, we conduct extensive experiments with real-world trajectories and complete implementations on the emulation platform composed of virtual machines. The experiments corroborate that Geo-DMP has the capability of successfully retrieving geospatial contents for users for most of the time under mobile circumstances with episodic connectivity. Moreover, en-route caches can be efficiently exploited to provision contents from multiple sources with less network resource consumption and shorter user-perceived latencies.

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Fanizzi, Nicola, Claudia d’Amato, and Floriana Esposito. "Inductive Classification of Semantically Annotated Resources through Reduced Coulomb Energy Networks." International Journal on Semantic Web and Information Systems 5, no. 4 (October 2009): 19–38. http://dx.doi.org/10.4018/jswis.2009100102.

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The tasks of resource classification and retrieval from knowledge bases in the Semantic Web are the basis for a lot of important applications. In order to overcome the limitations of purely deductive approaches to deal with these tasks, inductive (instance-based) methods have been introduced as efficient and noise-tolerant alternatives. In this paper we propose an original method based on a non-parametric learning scheme: the Reduced Coulomb Energy (RCE) Network. The method requires a limited training effort but it turns out to be very effective during the classification phase. Casting retrieval as the problem of assessing the classmembership of individuals w.r.t. the query concepts, we propose an extension of a classification algorithm using RCE networks based on an entropic similarity measure for OWL. Experimentally we show that the performance of the resulting inductive classifier is comparable with the one of a standard reasoner and often more efficient than with other inductive approaches. Moreover, we show that new knowledge (not logically derivable) is induced and the likelihood of the answers may be provided.

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Chen, Fu, Cheng Jie Xu, and Quan Yin Zhu. "A Design of a Sci-Tech Information Retrieval Platform Based on Apache Solr and Web Mining." Applied Mechanics and Materials 530-531 (February 2014): 883–86. http://dx.doi.org/10.4028/www.scientific.net/amm.530-531.883.

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In order to service the need of high-tech companies, allow companies get the sci-tech information more quickly and efficiently. The sci-tech information retrieval platform is proposed. The platform has four parts; the web spider, the Solr engine, the SQL Server 2008 database and the client. Each part deals a core issue, the mode make whole system more flexible, scalable and fault tolerant. The web spider collect sci-tech information from the Internet, the Solr engine takes charge of indexing documents gained by the web spider, the SQL Server database store all the users information and the configuration of the whole system, the client provides several REST-like APIs to modify the configurations and get the latest information in the platform.

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Kang, Min Wook, Dong Yeong Seo, and Yun Won Chung. "An Efficient Delay Tolerant Networks Routing Protocol for Information-Centric Networking." Electronics 9, no. 5 (May 19, 2020): 839. http://dx.doi.org/10.3390/electronics9050839.

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Delay tolerant networks (DTN) is a good candidate for delivering information-centric networking (ICN) messages in fragmented networks due to disaster. In order to efficiently deliver ICN messages in DTN, the characteristics of multiple requester nodes for the same content and multiple provider nodes for the same request should be used efficiently. In this paper, we propose an efficient DTN routing protocol for ICN. In the proposed protocol, requester information for request packet, which is called an Interest in ICN, is shared by exchanging status table with requested Data ID, requester ID, and satisfaction flag, where satisfaction flag is defined to show the delivery status of Data, so that unnecessary forwarding of Data is avoided. Data is forwarded to a more probable node by comparing average delivery predictability to a set of requesters. Performance of the proposed protocol was evaluated using simulation from the aspect of Data delivery probability and Data overhead, for varying buffer sizes, number of relay nodes, and time-to-live (TTL) of Data. The results show that the proposed protocol has better Data delivery probability, compared to content distribution and retrieval framework in disaster networks for public protection (CIDOR) and opportunistic forwarding (OF) protocols, although there is a tradeoff from the aspect of Data overhead for varying buffer sizes and number of relay nodes.

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Zhang, Yong Hui, Zhang Xi Lin, Li Wen Chen, and Quan Liang. "Wireless Access and Mobility Support for Automated Storage/Retrieval System and Logistics on Aluminum Profile." Applied Mechanics and Materials 236-237 (November 2012): 1026–31. http://dx.doi.org/10.4028/www.scientific.net/amm.236-237.1026.

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The preconditions of storage pre-schedule and real-time schedule management are wireless access and mobility support technology in aluminum profile logistic, which is vital for the automated storage/retrieval system(AS/RS) and logistics processes, such as intelligent warehousing and shipment. Understandings characters of the current wireless access technologies, applicability of networking mobility schemes, and their cooperation or compatibility with the Internet of things, decide the AS/RS and logistics structure and its whole efficiency. So the relational technologies and schemes are introduced in this paper from bottom to top according to Open System Interconnect seven layers protocols. It reveals that integration of multi-technologies was widely adopted in project implementation, which can be helpful to achieve high quality of mobile Internet access with lesser costs. Moreover, the feasibility of handover simplification and quality of service construction imply the success of schemes in design. Finally the strategic impact factors of the networking mobility support technology for AS/RS and logistics are concluded as overlapping coverage network optimization, delay tolerant network, and quality of service system based on user behavior.

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Godfrey, Jessie M., Louise Ferguson, and Maciej A. Zwieniecki. "Sodium Retrieval from Sap May Permit Maintenance of Carbohydrate Reserves in Mature Xylem Tissues of a Salt-tolerant Hybrid Pistachio Rootstock Exposed to 100 mm NaCl." Journal of the American Society for Horticultural Science 146, no. 4 (July 2021): 224–32. http://dx.doi.org/10.21273/jashs05023-20.

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Salinity’s many stresses may not kill a relatively salt-tolerant perennial in one season, but they can still deplete or modify nonstructural carbohydrate (NSC) pools. Any change to the quantity or quality of NSC reserves may have detrimental effects on phenology and reproduction, as well as yield, in tree crops. This study integrates salinity’s infringement on the energy margins of pistachio rootstock ‘UCB-1’ (an interspecific hybrid of Pistacia atlantica and P. integerrima) at senescence by measuring sugar and starch pools in wood, bark, and roots after treatment with ≈100 days of moderate to high salinity (50–100 mm NaCl and 10–20 mm CaCl2). Supported by a second experiment using sodium orthovanadate (NaOV) to block active xylem retrieval in the same hybrid pistachio rootstock, we conclude that retrieval of Na+ from xylem sap may allow for the preservation of NSC pools (particularly, starch) in mature xylem tissues by limiting the demand for carbon-based osmoticum (sugars). In contrast, younger growing tissues (bark and fine roots) were found to counteract salinity by degrading carbon-dense starch into osmotically active sugars at the expense of total NSC reserves, suggesting a physiological shift toward protection/isolation from environmentally pervasive but potentially toxic salts in these tissues.

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Liang, Yu, and Chao Wu. "A Hadoop-enabled sensor-oriented information system for knowledge discovery about target-of-interest." Facta universitatis - series: Electronics and Energetics 29, no. 3 (2016): 437–50. http://dx.doi.org/10.2298/fuee1603437l.

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To obtain a real-time situational awareness about the specific behavior of targets-of-interest using large-scale sensory data-set, this paper presents a generic sensor-oriented information system based on Hadoop Ecosystem, which is denoted as SOIS-Hadoop for simplicity. Robotic heterogeneous sensor nodes bound by wireless sensor network are used to track things-of-interest. Hadoop Ecosystem enables highly scalable and fault-tolerant acquisition, fusion and storage, retrieval, and processing of sensory data. In addition, SOIS-Hadoop employs temporally and spatially dependent mathematical model to formulate the expected behavior of targets-of-interest, based on which the observed behavior of targets can be analyzed and evaluated. Using two real-world sensor-oriented information processing and analysis problems as examples, the mechanism of SOIS-Hadoop is also presented and validated in detail.

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de Camargo, Raphael Y., Renan S. Recio, and Marcelo B. Reyes. "Heteroassociative storage of hippocampal pattern sequences in the CA3 subregion." PeerJ 6 (January 2, 2018): e4203. http://dx.doi.org/10.7717/peerj.4203.

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BackgroundRecent research suggests that the CA3 subregion of the hippocampus has properties of both autoassociative network, due to its ability to complete partial cues, tolerate noise, and store associations between memories, and heteroassociative one, due to its ability to store and retrieve sequences of patterns. Although there are several computational models of the CA3 as an autoassociative network, more detailed evaluations of its heteroassociative properties are missing.MethodsWe developed a model of the CA3 subregion containing 10,000 integrate-and-fire neurons with both recurrent excitatory and inhibitory connections, and which exhibits coupled oscillations in the gamma and theta ranges. We stored thousands of pattern sequences using a heteroassociative learning rule with competitive synaptic scaling.ResultsWe showed that a purely heteroassociative network model can (i) retrieve pattern sequences from partial cues with external noise and incomplete connectivity, (ii) achieve homeostasis regarding the number of connections per neuron when many patterns are stored when using synaptic scaling, (iii) continuously update the set of retrievable patterns, guaranteeing that the last stored patterns can be retrieved and older ones can be forgotten.DiscussionHeteroassociative networks with synaptic scaling rules seem sufficient to achieve many desirable features regarding connectivity homeostasis, pattern sequence retrieval, noise tolerance and updating of the set of retrievable patterns.

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Wang, Mingfeng, Marcel König, and Natascha Oppelt. "Partial Shape Recognition for Sea Ice Motion Retrieval in the Marginal Ice Zone from Sentinel-1 and Sentinel-2." Remote Sensing 13, no. 21 (November 8, 2021): 4473. http://dx.doi.org/10.3390/rs13214473.

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We present an algorithm for computing ice drift in the marginal ice zone (MIZ), based on partial shape recognition. With the high spatial resolution of Sentinel-1 and Sentinel-2 images, and the low sensitivity to atmospheric influences of Sentinel-1, a considerable quantity of ice floes is identified using a mathematical morphology method. Hausdorff distance is used to measure the similarity of segmented ice floes. It is tolerant to perturbations and deficiencies of floe shapes, which enhances the density of retrieved sea ice motion vectors. The PHD algorithm can be applied to sequential images from different sensors, and was tested on two combined image mosaics consisting of Sentinel-1 and Sentinel-2 data acquired over the Fram Strait; the PHD algorithm successfully produced pairs of matched ice floes. The matching result has been verified using shape and surface texture similarity of the ice floes. Moreover, the present method can naturally be extended to the problem of multi-source sea ice image registration.

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Sa-Couto, Luis, and Andreas Wichert. "Storing Object-Dependent Sparse Codes in a Willshaw Associative Network." Neural Computation 32, no. 1 (January 2020): 136–52. http://dx.doi.org/10.1162/neco_a_01243.

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Willshaw networks are single-layered neural networks that store associations between binary vectors. Using only binary weights, these networks can be implemented efficiently to store large numbers of patterns and allow for fault-tolerant recovery of those patterns from noisy cues. However, this is only the case when the involved codes are sparse and randomly generated. In this letter, we use a recently proposed approach that maps visual patterns into informative binary features. By doing so, we manage to transform MNIST handwritten digits into well-distributed codes that we then store in a Willshaw network in autoassociation. We perform experiments with both noisy and noiseless cues and verify a tenuous impact on the recovered pattern's relevant information. More specifically, we were able to perform retrieval after filling the memory to several factors of its number of units while preserving the information of the class to which the pattern belongs.

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Godfrey, Jessie M., Louise Ferguson, Blake L. Sanden, Aude Tixier, Or Sperling, Steve R. Grattan, and Maciej A. Zwieniecki. "Sodium interception by xylem parenchyma and chloride recirculation in phloem may augment exclusion in the salt tolerant Pistacia genus: context for salinity studies on tree crops." Tree Physiology 39, no. 8 (July 1, 2019): 1484–98. http://dx.doi.org/10.1093/treephys/tpz054.

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Abstract Working in tandem with root exclusion, stems may provide salt-tolerant woody perennials with some additional capacity to restrict sodium (Na) and chloride (Cl) accumulation in leaves. The Pistacia genus, falling at the nexus of salt tolerance and human intervention, provided an ideal set of organisms for studying the influences of both variable root exclusion and potentially variable discontinuities at the bud union on stem processes. In three experiments covering a wide range of salt concentrations (0 to 150 mM NaCl) and tree ages (1, 2 and 10 years) as well as nine rootstock-scion combinations we show that proportional exclusion of both Na and Cl reached up to ~85% efficacy, but efficacy varied by both rootstock and budding treatment. Effective Na exclusion was augmented by significant retrieval of Na from the xylem sap, as evidenced by declines in the Na concentrations of both sap and wood tissue along the transpiration stream. However, while we observed little to no differences between the concentrations of the two ions in leaves, analogous declines in sap concentrations of Cl were not observed. We conclude that some parallel but separate mechanism must be acting on Cl to provide leaf protection from toxicity specific to this ion and suggest that this mechanism is recirculation of Cl in the phloem. The presented findings underline the importance of holistic assessments of salt tolerance in woody perennials. In particular, greater emphasis might be placed on the dynamics of salt sequestration in the significant storage volumes offered by the stems of woody perennials and on the potential for phloem discontinuity introduced with a bud/graft union.

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Ding, Yueli, Yingzhao Shao, Jianhua Zhang, Xiaokai Nie, Pengfei Yang, and Wenkai Lv. "A Cloud Computing Platform Technology Based on Space-based Intelligent Information Network." Journal of Physics: Conference Series 2203, no. 1 (February 1, 2022): 012042. http://dx.doi.org/10.1088/1742-6596/2203/1/012042.

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Abstract Based on large-scale storage and networked computing resources, cloud computing technology provides a strong computing platform which could support for massive data storage and big data intelligent application in the different field. Space-based information infrastructure has matured over the years, but most of the satellite systems are independent, which cause the resources of the satellite computing platform are isolated from each other. In this case, storage and computing resources cannot be utilized fully, which also cannot effectively support space-based intelligent application platform[1]. In this paper, a space-based embedded cloud computing platform is designed by combining the application requirements of space-based intelligent computing and ground-based cloud computing system, which includes sharing and using large-scale computing resources, concurrent monitoring and management of multi-tasks, fault-tolerant migration of tasks, and distributed storage retrieval. The results of this paper are committed to building an intelligent information network computing and storage platform, which could support for space-based intelligent infrastructure application.

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Youssef, Ali, Alberto Peña Fernández, Laura Wassermann, Svenja Biernot, Eva-Maria Wittauer, André Bleich, Joerg Hartung, Daniel Berckmans, and Tomas Norton. "An Approach towards Motion-Tolerant PPG-Based Algorithm for Real-Time Heart Rate Monitoring of Moving Pigs." Sensors 20, no. 15 (July 30, 2020): 4251. http://dx.doi.org/10.3390/s20154251.

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Animal welfare remains a very important issue in the livestock sector, but monitoring animal welfare in an objective and continuous way remains a serious challenge. Monitoring animal welfare, based upon physiological measurements instead of the audio–visual scoring of behaviour, would be a step forward. One of the obvious physiological signals related to welfare and stress is heart rate. The objective of this research was to measure heart rate (beat per minutes) in pigs with technology that soon will be affordable. Affordable heart rate monitoring is done today at large scale on humans using the Photo Plethysmography (PPG) technology. We used PPG sensors on a pig′s body to test whether it allows the retrieval of a reliable heart rate signal. A continuous wavelet transform (CWT)-based algorithm is developed to decouple the cardiac pulse waves from the pig. Three different wavelets, namely second, fourth and sixth order Derivative of Gaussian (DOG), are tested. We show the results of the developed PPG-based algorithm, against electrocardiograms (ECG) as a reference measure for heart rate, and this for an anaesthetised versus a non-anaesthetised animal. We tested three different anatomical body positions (ear, leg and tail) and give results for each body position of the sensor. In summary, it can be concluded that the agreement between the PPG-based heart rate technique and the reference sensor is between 91% and 95%. In this paper, we showed the potential of using the PPG-based technology to assess the pig′s heart rate.

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Kulkumatagi, Savita S. "Secure Data Retrieval for Decentralized Disruption-Tolerent Military Networks." Bonfring International Journal of Software Engineering and Soft Computing 6, Special Issue (October 31, 2016): 223–29. http://dx.doi.org/10.9756/bijsesc.8283.

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Corcoglioniti, Francesco, Marco Rospocher, Roldano Cattoni, Bernardo Magnini, and Luciano Serafini. "The KnowledgeStore." International Journal on Semantic Web and Information Systems 11, no. 2 (April 2015): 1–35. http://dx.doi.org/10.4018/ijswis.2015040101.

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Although the quantity of structured information on the Web and within organizations is increasing, the majority of information remains available only in unstructured form. While different in form, both unstructured and structured information sources provide information about entities in the world and their properties and relations; still, frameworks for their seamless integration have not been deeply investigated. In this paper the authors describe the KnowledgeStore, a scalable, fault-tolerant, and Semantic Web grounded open-source storage system for interlinking structured and unstructured data. They present the concept, design, function and implementation of the system, and report on its concrete usage in three application scenarios within the NewsReader EU project, where it stores and supports the querying of millions of news articles interlinked with millions of RDF triples extracted from text and imported from Linked Open Data sources. The authors report on data population and data retrieval performances of the system measured through a number of experiments, and they also discuss the practical issues and lessons learned from these experiences.

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Herbst, Jan-Peter. "Distortion and Rock Guitar Harmony." Music Perception 36, no. 4 (April 1, 2019): 335–52. http://dx.doi.org/10.1525/mp.2019.36.4.335.

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Research on rock harmony accords with common practice in guitar playing in that power chords (fifth interval) with an indeterminate chord quality as well as major chords are preferred to more complex chords when played with a distorted tone. This study explored the interrelated effects of distortion and harmonic structure on acoustic features and perceived pleasantness of electric guitar chords. Extracting psychoacoustic parameters from guitar tones with Music Information Retrieval technology revealed that the level of distortion and the complexity of interval relations affects sensorial pleasantness. A listening test demonstrated power and major chords being perceived as significantly more pleasant than minor and altered dominant chords when being played with an overdriven or distorted guitar tone. This result accords with musical practice within rock genres. Rather clean rock styles such as blues or classic rock use major chords frequently, whereas subgenres with more distorted guitars such as heavy metal largely prefer power chords. Considering individual differences, electric guitar players rated overdriven and distorted chords as significantly more pleasant. Results were ambiguous in terms of gender but indicated that women perceive distorted guitar tones as less pleasant than men. Rock music listeners were more tolerant of sensorial unpleasant sounds.

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Hao, Jianying, Yuhong Ren, Yuanying Zhang, Kun Wang, Hui Li, Xiaodi Tan, and Xiao Lin. "Non-interferometric phase retrieval for collinear phase-modulated holographic data storage." Optical Review 27, no. 5 (August 19, 2020): 419–26. http://dx.doi.org/10.1007/s10043-020-00611-x.

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Abstract Because of its simple optical system setup and robust noise tolerance, non-interferometric phase retrieval is an important technique for phase-modulated holographic data storage. Usually, the iterative algorithm of non-interferometry needs hundreds of iteration numbers to retrieve phase accurately, the data transfer rate decreases severely. Strong constraints such as adding embedded data into the phase data page can reduce the iteration numbers, but this method decreases the code rate severely. In this paper, we proposed the advanced non-interferometric phase retrieval method based on the collinear system. By encoding the reference beam of the collinear optical holographic storage system with embedded data, the storage space of the signal beam data page is completely released and the encoding rate is doubled. The embedded data can provide more modulation index including phase and amplitude to shorten iterations, so the data transfer rate is also increased. In the simulation, we recorded a four-level phase pattern and retrieved the phase correctly.

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Yanto, Murni. "Manajemen kepala Madrasah Ibtidaiyah dalam menumbuhkan pendidikan karakter religius pada era digital." Jurnal Konseling dan Pendidikan 8, no. 3 (November 30, 2020): 176. http://dx.doi.org/10.29210/146300.

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This study aims to determine how the management of madrasah principals in fostering religious character education in the digital era. This study uses a qualitative method. The principal of State Islamic Elementary School 1 in Dusun Curup, Rejang Lebong Regency is the main sample in this study, the data collection technique uses the interview method, observation and documentation, the data analysis of the research results uses the reduction technique, triangulation and the conclusion of the research data. Based on this research, it is concluded that the management of the head of State Islamic Elementary School in fostering religious character education in the digital era by leading to the psychological side of students which has implications for behavior, character building in children is carried out in order to create students who have good knowledge and behavior. The character of State Islamic Elementary School students has values that come from Pancasila, religion, culture, and national education goals, namely honest, tolerance, religious, discipline, cooperation, creative, democracy, independence, national spirit, curiosity, love for the country, friendly, communicative, respect for achievement, love peace, care for the environment, love to read, care about socially, and have responsibility. Students' religiosity is shown by obedient attitude or behavior in carrying out the religious teachings that have been adhered to, being tolerant of the implementation of religious worship and living in harmony with followers of other religions. The results showed that the management of the head of State Islamic Elementary School in fostering religious character education had gone well by planning, organizing, implementing and evaluating it very well. Information technology helps facilitate all human activities, information retrieval, convey information and literacy about the addition of knowledge in learning by utilizing technology, so that students can learn by making maximum use of learning resources.

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Journal articles on the topic 'Tolerant retrieval'

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