Detection of Anomalies in the Traffic of IoT Devices

The article proposes an approach to finding anomalies in the traffic of IoT devices based on time series analysis and assessing normal and abnormal behavior using statistical methods. The main goal of the proposed approach is to combine statistical methods for detecting anomalies using unlabeled data and plotting key characteristics of device profiles. Within this approach the following techniques for traffic analysis has been developed and implemented: a technique for a feature extraction, a normal behavior boundary building technique and an anomaly detection technique. To evaluate the proposed approach, we used a technique for generating event logs from devices with the generation of anomalous markup. The experiments shown that the GESD-test gives the best results for anomaly detection in IoT traffic.

Grociana piccola: a rare example of Republican military fortifications in Italy

Recent investigations at Grociana piccola, a site in northeastern Italy consisting of two sub-rectangular fortifications, offer the rare opportunity to investigate Early Roman military architecture outside the Iberian peninsula. Excavations have revealed an inner rubble masonry rampart dated to the 2nd c. BCE by associated pottery, mainly amphora remains. This date suggests that the fortification was in use during the first Roman conquest and/or later campaigns of the 2nd c. BCE, providing one of the earliest and smallest examples of a military fort. The fort's ramparts were built using the same building technique as much larger 2nd-c. BCE military camps. Another trench uncovered the northeastern corner of the outer rampart and a probable tower or artillery platform which can be connected to a temporary camp built during the mid-1st c. BCE.

The Application of “Stilted Building” Technique in the Embolization of Aneurysms with Secondary Branches

Objective. Many intracranial aneurysms often have branch arteries, and it is especially important to protect them during embolization. The purpose of the present study was to evaluate the curative effect and safety of the “stilted building” technique. Methods. 25 patients with intracranial aneurysms with branch arteries that have been treated by coil embolization with the “stilted building” technique were retrospectively reviewed. Clinical follow-up was performed after endovascular treatment. Results. All 25 patients successfully underwent aneurysm embolization. During the operation, the ruptured sac and most of the body of the aneurysm were embolized using the “stilted building” technique. Immediate imaging showed that the blood flow to the branch arteries from the neck or sidewall of the aneurysm was unobstructed. The mRS scores of the 25 patients during the follow-up period were mRS 0 for twenty-one patients, mRS 1 for three patients, and mRS 6 for one patient. No aneurysms recurred among the patients who completed the follow-up. Conclusions. In an aneurysm with a branch artery, when a balloon or stent cannot be effectively used to protect the branch artery, the use of “stilted building” embolization can achieve good therapeutic effects, and the short-term follow-up results are satisfactory; the technique can effectively protect branch arteries originating from aneurysms.

Recommendations on Cultural Heritage Site Management Plan for the Punjulharjo Boat in Rembang, Central Java

The Punjulharjo boat is a wooden watercraft, built in the traditional Southeast Asian boat building technique called lashed-lug tradition. It was found in 2008, excavated, and later was dismantled for a lengthy conservation process. In early 2018, the hull was reassembled to be displayed for public. The site where the boat was found, and now displayed, has been listed as a heritage site under the Regulation of The Minister of Culture and Tourism No. 57 of 2010, but a management plan of it is still non-existent. Recommendations in this proposed management plan was amassed in accordance to international standards on site management plan. Data was collected from direct site observation, with the assistance of consultations to related references. This plan outlines objectives and strategy in managing the Punjulharjo site, and hopefully can serve as guidelines for the Regional Government of the District of Rembang as the manager of the site.