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bib 中不允许出现的字符

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bib 中不允许出现的字符

我正在尝试编译一份包含以下参考的文档：

@article{7103024,
    Abstract = {The complexity of indoor radio propagation has resulted in location-awareness being derived from empirical fingerprinting techniques, where positioning is performed via a previously-constructed radio map, usually of WiFi signals. The recent introduction of the Bluetooth Low Energy (BLE) radio protocol provides new opportunities for indoor location. It supports portable battery-powered beacons that can be easily distributed at low cost, giving it distinct advantages over WiFi. However, its differing use of the radio band brings new challenges too. In this work, we provide a detailed study of BLE fingerprinting using 19 beacons distributed around a ~600 m2 testbed to position a consumer device. We demonstrate the high susceptibility of BLE to fast fading, show how to mitigate this, and quantify the true power cost of continuous BLE scanning. We further investigate the choice of key parameters in a BLE positioning system, including beacon density, transmit power, and transmit frequency. We also provide quantitative comparison with WiFi fingerprinting. Our results show advantages to the use of BLE beacons for positioning. For one-shot (push-to-fix) positioning we achieve <; 2.6 m error 95% of the time for a dense BLE network (1 beacon per 30 m2), compared to <; 4.8 m for a reduced density (1 beacon per 100 m2) and <; 8.5 m for an established WiFi network in the same area.},
    Author = {R. Faragher and R. Harle},
    Date-Added = {2017-10-27 13:12:59 +0000},
    Date-Modified = {2017-10-27 13:12:59 +0000},
    Doi = {10.1109/JSAC.2015.2430281},
    Issn = {0733-8716},
    Journal = {IEEE Journal on Selected Areas in Communications},
    Keywords = {Bluetooth;indoor navigation;indoor radio;mobility management (mobile radio);radiowave propagation;BLE radio protocol;Bluetooth low energy radio protocol;WiFi signal;continuous BLE scanning;dense BLE network;empirical fingerprinting technique;indoor radio propagation complexity;location awareness;location fingerprinting;one-shot positioning;radio map;Advertising;Aggregates;Batteries;Bluetooth;Fading;IEEE 802.11 Standards;Interference;Bluetooth Low Energy Positioning;Bluetooth Positioning;Indoor positioning;Location fingerprinting;bluetooth low energy positioning;bluetooth positioning;iBeacons;location fingerprinting},
    Month = {Nov},
    Number = {11},
    Pages = {2418-2428},
    Title = {Location Fingerprinting With Bluetooth Low Energy Beacons},
    Volume = {33},
    Year = {2015},
    Bdsk-Url-1 = {http://dx.doi.org/10.1109/JSAC.2015.2430281}}

但是lualatex我运行biber命令后不知怎么就崩溃了。但如果我删除上面提到的条目，一切就都正常了。摘要是否以某种方式包含了不允许的字符？

答案1

%您的抽象字段中有一个未编码的。如果您95%进行更改95\%，应该会没问题。

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