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    Keyword-aware optimal route planning method for large-scale graph data by Ziyang LI, Pengcheng CHEN, Jiong YU, Yonglin PU, Zhenzhen HE, Xue LI, Shijie ZHENG

    Published 2023-09-01
    “…Focused on the problem that the planned routes cannot meet the personalized demand of different users in route planning of personalized self-driving tour, a keyword-aware optimal route planning method based on different user interests was proposed.Firstly, the road network information preprocessing model was set up and the road network information query graph was built by the road network information preprocessing algorithm.Secondly, the inverted index algorithm was proposed to prune the road network information query graph according to the personalized requirements from users, which improved the execution efficiency of keyword-aware optimal route planning method and reduced the memory cost of large-scale data processing effectively.Finally, the keyword-aware optimal route planning algorithm was proposed to realize personalized recommendation according to user interest by bidirectional parallel extension.The experimental results show that the method not only realizes the route planning to meet the individual needs of users but also improves the execution efficiency of the method through pruning and bidirectional parallel extension.…”
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    Structural innovation design of mobile chassis for inspection robots based on the TRIZ theory by WANG Zhihui, LI Kangkang, WANG Chengjun

    Published 2025-01-01
    “…ObjectiveAiming at the problem that the working plane of inspection robots equipped with precision instruments can’t always maintain stable when moving on complex road surfaces such as bosses and trenches, an innovative design of the robot’s mobile chassis structure was proposed based on the contradiction analysis method and the material field model.MethodsA floating structure design was proposed and obstacle crossing analysis and driving smoothness analysis under complex road conditions such as bosses and trenches were conducted on the floating mobile chassis. …”
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    Zanieczyszczenie wybranych próbek stałych węglowodorami aromatycznymi przy trasach wylotowych z miasta Olecko by Ireneusz Chrząścik, Magdalena Szymalska, Mariusz Kluska

    Published 2007-12-01
    “…This paper presents the results of research conducted on some samples with soil and cabbage taken from the vicinity of Olecko town (Suwałki, Gołdapia, Ełk, Giżycko) and containing polycyclic aromatic hydrocarbons (PAHs) with 16 aromatic rings, the research is a continuation of a detailed monitoring of progressing pollution in the Olecko region, the samples were taken in August 2006 from the place situated 10 m from a road, this place was at the same time a cabbage plantation, the highest concentration of PAHs (750 pg/kg s. m.) was found in the sample taken close to the road from Olecko to Suwałki and in the sample with cabbage (313 pg/kg s. m.) taken near the road to Gołdapia. …”
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