Abstract: A data index establishment method obtains M raw data segments and a first-layer mapping relationship through segment fitting on raw data in a raw data table, and further obtains N first key segments and a second-layer mapping relationship through segment fitting on a first key of each raw data segment. In a subsequent data query process, a multi-layer mapping relationship is input from a to-be-queried key sequentially in descending order, until a location of the to-be-queried key in the raw data table is located.

Abstract: Provided are an automatic parking method and device. The automatic parking method includes: acquiring a global waypoint map of a parking lot where a vehicle is to be parked and position information of available parking spaces, and performing global path planning according to the global waypoint map and the available parking space position information; starting automatic driving according to the global path planning, acquiring vehicle visual information, and performing local path planning and obstacle avoidance processing according to the vehicle visual information; and searching for a parking space when automatically driving to the vicinity of the available parking spaces, and performing parking after finding an available parking space that satisfies a parking condition.

Abstract: Provided are an automatic parking method and device. The automatic parking method includes: acquiring a global waypoint map of a parking lot where a vehicle is to be parked and position information of available parking spaces, and performing global path planning according to the global waypoint map and the available parking space position information; starting automatic driving according to the global path planning, acquiring vehicle visual information, and performing local path planning and obstacle avoidance processing according to the vehicle visual information; and searching for a parking space when automatically driving to the vicinity of the available parking spaces, and performing parking after finding an available parking space that satisfies a parking condition.

Abstract: A data index establishment method obtains M raw data segments and a first-layer mapping relationship through segment fitting on raw data in a raw data table, and further obtains N first key segments and a second-layer mapping relationship through segment fitting on a first key of each raw data segment. In a subsequent data query process, a multi-layer mapping relationship is input from a to-be-queried key sequentially in descending order, until a location of the to-be-queried key in the raw data table is located.

Abstract: The present application relates to the field of computer technologies, and in particular, to a stop word identification method used in an information retrieval system. In a stop word identification method, after a first query input by a user is acquired, a second query that belongs to a same session as the first query is acquired, and a stop word in the first query is identified according to a change-based feature of each word in the first query relative to the second query. According to the solution provided by the present application, a stop word in a query can be identified more accurately, and efficiency and precision of an information retrieval system are improved.

Abstract: A method for connecting graphene and metal compound electrodes in a carbon nanotube device through carbon-carbon covalent bonds, the method including: 1) providing a substrate, designing and preparing pre-patterned metal membrane electrodes on the substrate; 2) mixing carbon nanotubes with a volatile organic solvent to yield a dispersed suspension solution, disposing the carbon nanotube between the pre-patterned metal membrane electrodes in the dispersed suspension to allow two ends of the carbon nanotube to connect to the metal membrane electrodes, to form a carbon nanotube device; 3) annealing the carbon nanotube device under a mixture of nitrogen and argon, etching, by metal atoms, a part of carbon atoms at two ends of the carbon nanotube connected to the metal membrane electrodes to form notches; and 4) using hydrocarbon gas as a carbon source, and performing a chemical vapor deposition process.

Abstract: The present application relates to the field of computer technologies, and in particular, to a stop word identification method used in an information retrieval system. In a stop word identification method, after a first query input by a user is acquired, a second query that belongs to a same session as the first query is acquired, and a stop word in the first query is identified according to a change-based feature of each word in the first query relative to the second query. According to the solution provided by the present application, a stop word in a query can be identified more accurately, and efficiency and precision of an information retrieval system are improved.

Abstract: An apparatus, method, and computer program product are provided for creating and displaying an integrated search and web browser history to a user. In particular, the apparatus includes a processor and a memory including computer program code, and the memory and computer program code are configured to, with the processor, cause the apparatus to receive search data provided to a website and navigational data relating to a webpage. The apparatus may determine a relationship between the search data and the navigational data and may further provide for a graphical representation of the search data, the navigational data, and the relationship between the search and navigational data to be displayed to the user. Thus, the user can have not only a record of the webpages accessed or search terms used in the previous search, but also a meaningful organization and contextual representation of the search.

Abstract: A nested CRC code generation method for data transmission error control, comprising: segmenting the data to be computed, allocating a CRC code computing channel to each of the data segments according to the data type, computing CRC sub-codes by the computing channels, sorting the CRC sub-codes, and generating a nested CRC code by sending the sorted CRC sub-codes to the final CRC code computing channel directly or by using the sorted CRC sub-codes as the new data to be computed, repeating the above CRC sub-code computing process and sending the final sorted CRC sub-codes to the final CRC code computing channel. A nested CRC code generation device for data transmission error control, comprising: a data segmenting module, a computing channel selecting module, a multi-channel CRC code computing module, a data sorting module, a set of registers, a data distributor, a counter and a single-channel CRC code computing module.

Abstract: An apparatus, method, and computer program product are provided for creating and displaying an integrated search and web browser history to a user. In particular, the apparatus includes a processor and a memory including computer program code, and the memory and computer program code are configured to, with the processor, cause the apparatus to receive search data provided to a website and navigational data relating to a webpage. The apparatus may determine a relationship between the search data and the navigational data and may further provide for a graphical representation of the search data, the navigational data, and the relationship between the search and navigational data to be displayed to the user. Thus, the user can have not only a record of the webpages accessed or search terms used in the previous search, but also a meaningful organization and contextual representation of the search.

Abstract: A nested CRC code generation method for data transmission error control, comprising: segmenting the data to be computed, allocating a CRC code computing channel to each of the data segments according to the data type, computing CRC sub-codes by the computing channels, sorting the CRC sub-codes, and generating a nested CRC code by sending the sorted CRC sub-codes to the final CRC code computing channel directly or by using the sorted CRC sub-codes as the new data to be computed, repeating the above CRC sub-code computing process and sending the final sorted CRC sub-codes to the final CRC code computing channel. A nested CRC code generation device for data transmission error control, comprising: a data segmenting module, a computing channel selecting module, a multi-channel CRC code computing module, a data sorting module, a set of registers, a data distributor, a counter and a single-channel CRC code computing module.

Abstract: A method for targeted and comprehensive sequencing using high-density oligonucleotide array, comprising the steps of hybridizing nucleic acid from an investigative species with high-density oligonucleotide arrays of a related species, identifying the oligonucleotide probes that generate high hybridization signals, using the probes sequences to make PCR primers, amplifying heterologous genes by PCR with the gene specific PCR primers and an anchoring primer, and sequencing the PCR products.