Combining First and Second Order Features in the TREC 2003 Robust Track
نویسندگان
چکیده
This year at TREC 2003 we participated in the robust track and investigated the use of very simple retrieval rules based on convex combinations of similarity measures based on first and second order features.
منابع مشابه
NLPR at TREC 2003: Novelty and Robust
It is the first time that the Chinese Information Processing group of NLPR participates in TREC. Our goal in this year is to test our IR system and get some experience about the TREC evaluation. So, we select two retrieval tasks: Novelty Track and Robust Track. We build a new IR system based on two key technologies: Window-based weighting method and Semantic Tree Model for query expansion. In t...
متن کاملAerodynamic Design Optimization Using Genetic Algorithm (RESEARCH NOTE)
An efficient formulation for the robust shape optimization of aerodynamic objects is introduced in this paper. The formulation has three essential features. First, an Euler solver based on a second-order Godunov scheme is used for the flow calculations. Second, a genetic algorithm with binary number encoding is implemented for the optimization procedure. The third ingredient of the procedure is...
متن کاملCooperative Control of Multiple Quadrotors for Transporting a Common Payload
This paper investigates the problem of controlling a team of Quadrotors that cooperatively transport a common payload. The main contribution of this study is to propose a cooperative control algorithm based on a decentralized algorithm. This strategy is comprised of two main steps: the first one is calculating the basic control vectors for each Quadrotor using Moore–Penrose theory aiming at coo...
متن کاملRobust, Web and Genomic Retrieval with Hummingbird SearchServer at TREC 2003
Hummingbird participated in 4 tasks of TREC 2003: the ad hoc task of the Robust Retrieval Track (find at least one relevant document in the first 10 rows from 1.9GB of news and government data), the navigational task of the Web Track (find the home or named page in 1.2 million pages (18GB) from the .GOV domain), the topic distillation task of the Web Track (find key resources for topics in the ...
متن کاملTask-Specific Query Expansion (MultiText Experiments for TREC 2003)
I. INTRODUCTION For TREC 2003 the MultiText Project focused its efforts on the Genomics and Robust tracks. We also submitted passage-retrieval runs for the QA track. For the Genomics Track primary task, we used an amalgamation of retrieval and query expansion techniques, including tiering, term rewriting and pseudo-relevance feedback. For the Robust Track, we examined the impact of pseudo-relev...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2003