{"title":"Trust-Based Multi-objective Optimization for Node-to-Task Assignment in Coalition Networks","authors":"Jin-Hee Cho, I. Chen, Yating Wang, Kevin S. Chan","doi":"10.1109/ICPADS.2013.59","DOIUrl":"https://doi.org/10.1109/ICPADS.2013.59","url":null,"abstract":"A temporary coalition is often formed to pursue a common goal based on the collaboration of multiple partners who may have their own objectives. The coalition network must attain multiple objectives, under resource constraints and time deadlines. We propose a task assignment algorithm for a scenario where tasks are dynamic, with different arrival times and deadlines. We propose a heuristic coalition formation technique that uses multiple dimensions of trust (i.e., integrity, competence, social connectedness, and reciprocity) to assess trust of each entity. The proposed scheme enables task leaders to make critical assignment decisions based on assessed trustworthiness of entities. We consider three different objectives, namely, maximizing resilience and resource utilization while minimizing delay to task completion. We devise a ranking-based heuristic with linear runtime complexity to select members based on risk derived from trust assessment of nodes. We validate the performance of our proposed scheme by comparing our scheme with a non-trust-based baseline scheme as well as a global optimal solution implemented with the Integer Linear Programming technique.","PeriodicalId":160979,"journal":{"name":"2013 International Conference on Parallel and Distributed Systems","volume":"341 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115887640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Development of Efficient Role-Based Sensor Network Applications with Excel Spreadsheets","authors":"Christopher Boelmann, Torben Weis","doi":"10.1109/ICPADS.2013.58","DOIUrl":"https://doi.org/10.1109/ICPADS.2013.58","url":null,"abstract":"Natural scientists use large scale sensor networks for gathering and analyzing environmental data. However, the implementation work requires expert programmers. The problem is complicated by limited battery lifetime, processing power and memory capacity of the nodes, because this requires a low-level programming language. Since scientists are used to analyzing data with spreadsheets, researchers have studied the possibility of applying spreadsheet-based programming to sensor networks. The approaches so far either require a central server to execute the spreadsheet, or they execute a spreadsheet run-time on each node. The first approach causes higher communication cost since all data has to be routed to the central server and the second one causes computational overhead, because evaluating a spreadsheet is slower than executing handcrafted NesC-code. Hence, we present a spreadsheet driven tool-chain that can create efficient NesC-code and allows for simulation in the spreadsheet itself. The nodes have to recompute the spreadsheet formulas upon new data. However, we can avoid a large fraction of this recomputation by applying several optimization strategies during code generation. In our example scenario, sensor nodes compute the variance across a series of sensor readings. We can show that the optimizations save 65% CPU cycles and the code size decreases by 12% when compared to non-optimized execution of the spreadsheet. Thus, our approach can deliver an easy way of developing sensor network programs while yielding very efficient code.","PeriodicalId":160979,"journal":{"name":"2013 International Conference on Parallel and Distributed Systems","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128200624","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Tag Co-occurrence Relationship Prediction in Heterogeneous Information Networks","authors":"Jinpeng Chen, H. Gao, Zhenyu Wu, Deyi Li","doi":"10.1109/ICPADS.2013.95","DOIUrl":"https://doi.org/10.1109/ICPADS.2013.95","url":null,"abstract":"In this work, we address a novel problem about tag co-occurrence relationship prediction across heterogeneous networks. Although tag co-occurrence has recently become a hot research topic, many studies mainly focus on how to produce the personalized recommendation leveraging the tag co-occurrence relationship and most of them are considered in a homogeneous network. So far, few studies pay attention to how to predict tag co-occurrence relationship across heterogeneous networks. In order to solve the aforementioned problem, we propose a novel two-step prediction approach. First, weight path-based topological features are systematically extracted from the network. Then, a supervised model is used to learn the best weights associated with different topological features in deciding the co-occurrence relationships. Experiments are performed on real-world dataset, the Flickr network, with comprehensive measurements. Experimental results demonstrate that weight path-based heterogeneous topological features have substantial advantages over commonly used link prediction approaches in predicting co-occurrence relations in information networks.","PeriodicalId":160979,"journal":{"name":"2013 International Conference on Parallel and Distributed Systems","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114735453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Subpopulation Diversity Based Accepting Immigrant in Distributed Evolutionary Algorithms","authors":"Chengjun Li, Jian Wang, Xianbin Yan, Guangdao Hu","doi":"10.1109/ICPADS.2013.66","DOIUrl":"https://doi.org/10.1109/ICPADS.2013.66","url":null,"abstract":"As a popular type of parallel evolutionary algorithms, distributed evolutionary algorithms (DEAs) are widely used in a variety of fields. To get better solutions of concrete problems, a scheme of subpopulation diversity based accepting immigrant in DEAs is proposed in this paper. In migration with this scheme, an immigrant will be put into its target subpopulation only if its current diversity is lower than a threshold value. Algorithm analysis shows that the extra cost of time for this scheme is acceptable in many DEAs. Experiments are conducted on instances of the Traveling Salesman Problem from the TSPLIB. Results show that the DEA based on the proposed scheme can get better solutions than the one without it.","PeriodicalId":160979,"journal":{"name":"2013 International Conference on Parallel and Distributed Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130121360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Towards Model Checking of Simulation Models for Embedded System Development","authors":"Hae Young Lee","doi":"10.1109/ICPADS.2013.81","DOIUrl":"https://doi.org/10.1109/ICPADS.2013.81","url":null,"abstract":"Modeling and simulation has been widely used to develop embedded systems and cyber-physical systems, especially in safety-critical domains. While models for such systems are required to be rigidly verified, simulation offers only partial observations on them with a limited number of test cases. Model checking techniques of timed automata would not be directly applied to formal verification of simulation models due to the differences in execution semantics and model composition. In order to enable model checking of simulation models, this paper presents an algorithm to obtain region transition systems from models written in an M&S formalism. Such region transition systems could be exhaustively checked by the model checking techniques without any modification.","PeriodicalId":160979,"journal":{"name":"2013 International Conference on Parallel and Distributed Systems","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130218630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Overhead Reduction for Duplicate Address Detection in VANET","authors":"Kuan-Lan Tseng, Tsan-Pin Wang","doi":"10.1109/ICPADS.2013.104","DOIUrl":"https://doi.org/10.1109/ICPADS.2013.104","url":null,"abstract":"In VANET, nodes move at high speed and change connecting network frequently. As a consequence, IP duplication may occur and packets would not be sent to the correct destination. This paper aims at reducing the size of location information in duplicate address detection (DAD) scheme. We propose a grid-based duplicate address detection (GDAD) scheme and separate network into several grids, where the location information in the packet is replaced with the grid number. In addition, we model and calculate the probability of occurrence of IP duplication. Finally, we simulate and estimate the probability of IP duplication.","PeriodicalId":160979,"journal":{"name":"2013 International Conference on Parallel and Distributed Systems","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125337077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Melin Huang, Bormin Huang, Jarno Mielikäinen, Hung-Lung Huang, M. Goldberg, A. Mehta
{"title":"Further Improvement on GPU-Based Parallel Implementation of WRF 5-Layer Thermal Diffusion Scheme","authors":"Melin Huang, Bormin Huang, Jarno Mielikäinen, Hung-Lung Huang, M. Goldberg, A. Mehta","doi":"10.1109/ICPADS.2013.126","DOIUrl":"https://doi.org/10.1109/ICPADS.2013.126","url":null,"abstract":"The Weather Research and Forecasting (WRF) model has been widely employed for weather prediction and atmospheric simulation with dual purposes in forecasting and research. Land-surface models (LSMs) are parts of the WRF model, which is used to provide information of heat and moisture fluxes over land and sea-ice points. The 5-layer thermal diffusion simulation is an LSM based on the MM5 soil temperature model with an energy budget made up of sensible, latent, and radiative heat fluxes. Owing to the feature of no interactions among horizontal grid points, the LSMs are very favorable for massively parallel processing. The study presented in this article demonstrates the parallel computing efforts on the WRF 5-layer thermal diffusion scheme using Graphics Processing Unit (GPU). Since this scheme is only one intermediate module of the entire WRF model, the involvement of the I/O transfer does not occur in the intermediate process. By employing one NVIDIA GTX 680 GPU in the case without I/O transfer, our optimization efforts on the GPU-based 5-layer thermal diffusion scheme can reach a speedup as high as 247.5x with respect to one CPU core, whereas the speedup for one CPU socket with respect to one CPU core is only 3.1x. We can even boost the speedup to 332x with respect to one CPU core when three GPUs are applied.","PeriodicalId":160979,"journal":{"name":"2013 International Conference on Parallel and Distributed Systems","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121690118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Ontology-Based TV Program Contents Retrieval and Recommendation","authors":"Jungmin Kim, Hyunsook Chung","doi":"10.1109/ICPADS.2013.97","DOIUrl":"https://doi.org/10.1109/ICPADS.2013.97","url":null,"abstract":"In this paper we propose a searching and recommendation method of TV program contents in order to reduce the information overload problem. Most of previous recommendation approaches are dependent on simple ratings of users to determine preference similarity among the users. But our approach is closely related to the combination of ontology-based TV program searching and content-based filtering based on TV ontology and usage history. We search TV programs by computing the similarity between contents ontologies, filter the candidates with preferences of users, and return the ranked list of TV programs. A subjective experiments show that our proposed method is effective in semantic-based searching and recommendation.","PeriodicalId":160979,"journal":{"name":"2013 International Conference on Parallel and Distributed Systems","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122252871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"SNN Input Parameters: How Are They Related?","authors":"Guilherme Moreira, M. Y. Santos, J. Pires","doi":"10.1109/ICPADS.2013.89","DOIUrl":"https://doi.org/10.1109/ICPADS.2013.89","url":null,"abstract":"Nowadays, organizations are facing several challenges when they try to analyze generated data with the aim of extracting useful information. This analytical capacity needs to be enhanced with tools capable of dealing with big data sets without making the analytical process a difficult task. Clustering is usually used, as this technique does not require any prior knowledge about the data. However, clustering algorithms usually require one or more input parameters that influence the clustering process and the results that can be obtained. This work analyses the relation between the three input parameters of the SNN (Shared Nearest Neighbor) algorithm and proposes specific guidelines for the identification of the appropriate input parameters that optimizes the processing time.","PeriodicalId":160979,"journal":{"name":"2013 International Conference on Parallel and Distributed Systems","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132338766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jiahong Wang, Yuhiro Yonamine, Eiichiro Kodama, T. Takata
{"title":"A Distributed Approach to Constructing k-Hop Connected Dominating Set in Ad Hoc Networks","authors":"Jiahong Wang, Yuhiro Yonamine, Eiichiro Kodama, T. Takata","doi":"10.1109/ICPADS.2013.57","DOIUrl":"https://doi.org/10.1109/ICPADS.2013.57","url":null,"abstract":"Since ad hoc networks do not have fixed or predefined infrastructures, nodes need to frequently flood control messages to discover and maintain routes, which causes performance problems in terms of unnecessary traffic and energy consumption, contention, and collision. A general solution is to construct a virtual backbone as the basis of routing and broadcasting, and the Connected Dominating Set (CDS) has been widely used. This paper gives a distributed approach to constructing k-Hop CDS with three unique characteristics: (1) the limitation on the range of k has been removed, (2) a token-based conflict avoidance mechanism has been introduced which can make the construction process faster and more effective, (3) a tree-type CDS can be constructed in bottom-up processing. Simulation experiments have been conducted to demonstrate the effectiveness of the proposed approach.","PeriodicalId":160979,"journal":{"name":"2013 International Conference on Parallel and Distributed Systems","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114971414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}