Non-invertible symmetries have been extensively studied in quantum field theories recent years. In this note we initiate their study supergravity. We find infinite families of non-invertible defects 11d and 10d Type II supergravities. These operators display a rich action on different probe branes. comment how these are removed the UV completion, M-theory String Theory existence strengthens lin...

We show that various disconnected components of the moduli space of superstring vacua with 16 supercharges admit a rationale in terms of BPS un-orientifolds, i.e. type I toroidal compactifications with constant non-vanishing but quantized vacuum expectation values of the NS×NS antisymmetric tensor. These include various heterotic vacua with reduced rank, known as CHL strings, and their dual typ...

This paper describes the systems we submitted to the task 3 (Community Question Answering) in SemEval 2017 which contains three subtasks on english corpora, i.e., subtask A: Question-Comment Similarity, subtask B: Question-Question Similarity, and subtask C: Question-External Comment Similarity. For subtask A, we combined two different methods to represent question-comment pair, i.e., supervise...

Social media has become ubiquitous and important for content sharing. A typical example of how users contribute content to a social media platform is through comment threads in online articles. Unfortunately, there is an increasing prevalence of malicious activity in these threads by spammers through comment messages. The existing approaches tackling comment spam are comment-level in that they ...