Jianfeng Dong

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Let ∂/∂ t + (−∆)2 +V 2 be a higher order parabolic Schrödinger operator on Rn+1 (n≥ 5), where the nonnegative potential V belongs to the reverse Hölder class Bq1 (R n) for some q1 > n/2. In this paper we obtain the L p(Rn+1) estimates for the operator ∇4(∂/∂ t + (−∆)2 +V 2)−1. 2010 Mathematics Subject Classification: 35J10, 35K25
This paper attacks the challenging problem of cross-media retrieval. That is, given an image find the text best describing its content, or the other way around. Different from existing works, which either rely on a joint space, or a text space, we propose to perform cross-media retrieval in a visual space only. We contribute Word2VisualVec, a deep neural(More)
This paper describes our solution for the MSR Video to Language Challenge. We start from the popular ConvNet + LSTM model, which we extend with two novel modules. One is early embedding, which enriches the current low-level input to LSTM by tag embeddings. The other is late reranking, for re-scoring generated sentences in terms of their relevance to a(More)
The expression status of CD74 in breast cancer stem cells and its clinical implications was evaluated in order to lay a foundation for managing breast cancer. Five hundred and eighty breast cancer specimens were enrolled in the study. The relationship between the CD74 protein and clinicopathological parameters as well as prognosis was subsequently(More)
How to estimate cross-media relevance between a given query and an unlabeled image is a key question in the MSR-Bing Image Retrieval Challenge. We answer the question by proposing cross-media relevance fusion, a conceptually simple framework that exploits the power of individual methods for cross-media relevance estimation. Four base cross-media relevance(More)
  • Jianfeng Dong
  • 2010 International Conference on Challenges in…
  • 2010
Network security situation evaluation and prediction is a new technology to monitor network security, and it is one of hot research domains in information security. The research situation of network security situation evaluation and prediction all over the world is analyzed. A network security situation evaluation and prediction model based on grey theory(More)
Attention mechanisms have been widely applied in the Visual Question Answering (VQA) task, as they help to focus on the area-of-interest of both visual and textual information. To answer the questions correctly, the model needs to selectively target different areas of an image, which suggests that an attention-based model may benefit from an explicit(More)
  • Jianfeng Dong
  • 2010 International Conference on Challenges in…
  • 2010
Aiming to solve the problem of network security evaluation index, the data extracted from net flow are analyzed. And the data are aggregated by several relational dimensions. Using the method of grey relation advantage analysis, the grey relation values of network security events and the characters of the data are calculated. The pivot characters(More)