传统渐进式概念格生成算法主要针对某一特定形式背景,固定对象个数单向增加属性或固定属性个数单向增加对象来构建概念格.本文提出的双向渐进式概念格生成算法(Bidirectional Incremental Algorithm,BIA)基于一个或多个形式背景,引入元胞数据组织结构,针对对象和属性双向同时渐增的情况,将对象和属性分别与概念节点的外延和内涵同时求交,得到4类求交结果和4类更新节点.这种新型构造算法扩展了概念节点结构,在更新节点的同时更新了节点边关系,不仅解决了对象和属性同时渐增给已生成的概念格所带来的更新问题,而且适用于多个形式背景下一次性构造概念格,从而避免了先合并形式背景再构建概念格或先单独构建子概念格再进行合并的繁琐过程. The traditional incremental concept lattice generation algorithm mainly constructs the concept lattice for one particular form of background, one-way increase of the number of fixed objects or one-way increase of the number of fixed attributes. The proposed Bidirectional Incremental Algorithm, BIA), based on one or more formal contexts, introduces cellular data organization structure. In the case of two-way simultaneous increase of objects and attributes, the object and attribute are respectively intersected with the extension and connotation of concept nodes. Handing over results and class 4 update nodes.The new construction algorithm extends the concept node structure and updates the node edge relationship while updating the node not only solves the problem that the object and the attribute simultaneously increase to the generated concept lattice update But also apply to the construction of concept lattice in one form at a time in many forms, so as to avoid the tedious process of reconstructing the concept lattice firstly or combining the sub-concept lattices separately before merging the formal contexts.